(240) Area Code | Track Name & Location

Area Code 240

240 Area Code Overview

State

Major City

Silver Spring

Other Cities

Laurel, Gaithersburg, Frederick, Waldorf, Hagerstown, Ashton, Leonardtown, Cumberland, Damascus, Indian Head, Myersville, Nanjemoy, Hancock, Middletown, Westernport

Timezone

Eastern Daylight Time

Current Time

10:27 am

Date First Active

Nov 10, 2011

Regions Within 240 Area Code

Region	City, State	Carrier	Date Started
(240) 201-####	Ridge , MD	Peerless Network	N/A
(240) 203-####	Hagerstown , MD	Sprint	10/04/11
(240) 204-####	Silver Spring , MD	Verizon	09/07/11
(240) 205-####	Silver Spring , MD	AT&T	07/23/03
(240) 206-####	Silver Spring , MD	XO Communications	N/A
(240) 207-####	Damascus , MD	Cavalier Eas	N/A
(240) 208-####	La Plata , MD	Peerless Network	N/A
(240) 209-####	Indian Head , MD	Peerless Network	N/A
(240) 210-####	Waldorf , MD	AT&T	N/A
(240) 212-####	Oakland , MD	Core Communications	N/A
(240) 213-####	Waldorf , MD	Peerless Network	N/A
(240) 214-####	Mechanicsville , MD	Peerless Network	N/A
(240) 215-####	Frederick , MD	Telcove Operations	N/A
(240) 216-####	Waldorf , MD	Sprint	03/15/01
(240) 217-####	Hagerstown , MD	Omnipoint Communications	04/16/01
(240) 218-####	Nanjemoy , MD	Peerless Network	N/A
(240) 219-####	Ridge , MD	Peerless Network	09/22/14
(240) 220-####	Poolesville , MD	Peerless Network	N/A
(240) 221-####	Silver Spring , MD	Verizon	N/A
(240) 222-####	Waldorf , MD	Cavalier Telephone	N/A
(240) 223-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 224-####	Gaithersburg , MD	Verizon	09/10/12
(240) 225-####	Frederick , MD	Core Communications	N/A
(240) 228-####	Silver Spring , MD	Verizon	N/A
(240) 229-####	Waldorf , MD	Broadwing Communications	N/A
(240) 230-####	Hughesville , MD	Global Crossing Local Services	N/A
(240) 231-####	Hagerstown , MD	Core Communications	N/A
(240) 232-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 233-####	Tompkinsville , MD	Teleport Communications	N/A
(240) 234-####	Silver Spring , MD	Verizon	10/04/11
(240) 235-####	Silver Spring , MD	Paetec Communications	N/A
(240) 236-####	Frederick , MD	Verizon	N/A
(240) 237-####	Lexington Park Great Mills , MD	Teleport Communications	N/A
(240) 238-####	Silver Spring , MD	Paetec Communications	N/A
(240) 239-####	Leonardtown , MD	Core Communications	N/A
(240) 241-####	Silver Spring , MD	Starpower Communications	N/A
(240) 242-####	Silver Spring , MD	Starpower Communications	N/A
(240) 243-####	Gaithersburg , MD	Allegiance Telecom	N/A
(240) 244-####	Silver Spring , MD	Starpower Communications	N/A
(240) 245-####	Silver Spring , MD	Starpower Communications	N/A
(240) 246-####	Gaithersburg , MD	Starpower Communications	N/A
(240) 247-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 248-####	Ridge , MD	Peerless Network	N/A
(240) 249-####	Mechanicsville , MD	Teleport Communications	N/A
(240) 250-####	Brandywine , MD	Peerless Network	N/A
(240) 251-####	Highfield , MD	Core Communications	N/A
(240) 252-####	Gaithersburg , MD	Level 3 Communications	N/A
(240) 253-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 254-####	Hughesville , MD	Teleport Communications	N/A
(240) 255-####	Poolesville , MD	Peerless Network	N/A
(240) 256-####	Leonardtown , MD	Teleport Communications	N/A
(240) 257-####	Nanjemoy , MD	Teleport Communications	N/A
(240) 258-####	Ridge , MD	Teleport Communications	N/A
(240) 260-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 261-####	Gaithersburg , MD	Neutral Tandem	12/23/15
(240) 262-####	Lexington Park Great Mills , MD	Sprint	10/17/11
(240) 263-####	Silver Spring , MD	Sprint	11/10/11
(240) 264-####	Laurel , MD	Verizon	N/A
(240) 265-####	Silver Spring , MD	Sprint	11/10/11
(240) 266-####	Silver Spring , MD	Peerless Network	N/A
(240) 267-####	Hagerstown , MD	Verizon	05/18/17
(240) 268-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 269-####	Silver Spring , MD	Peerless Network	N/A
(240) 270-####	Waldorf , MD	Verizon	11/07/11
(240) 271-####	Silver Spring , MD	AT&T	N/A
(240) 272-####	Silver Spring , MD	Sprint	11/10/11
(240) 273-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 274-####	Silver Spring , MD	AT&T	N/A
(240) 275-####	Grantsville , MD	Core Communications	N/A
(240) 276-####	Silver Spring , MD	Verizon	05/04/04
(240) 277-####	Silver Spring , MD	Sprint	10/18/02
(240) 278-####	Laurel , MD	Verizon	07/08/11
(240) 279-####	Waldorf , MD	Core Communications	N/A
(240) 280-####	Laurel , MD	Comcast Phone	N/A
(240) 281-####	Silver Spring , MD	AT&T	N/A
(240) 282-####	Mechanicsville , MD	Peerless Network	N/A
(240) 283-####	Silver Spring , MD	Paetec Communications	N/A
(240) 284-####	Frostburg , MD	Level 3 Communications	11/01/04
(240) 285-####	Frederick , MD	Verizon	N/A
(240) 286-####	Silver Spring , MD	Sprint	09/17/02
(240) 287-####	Hancock , MD	Core Communications	N/A
(240) 288-####	Thurmont , MD	Comcast Phone	11/01/04
(240) 289-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 290-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 291-####	Hagerstown , MD	AT&T	10/15/02
(240) 292-####	Silver Spring , MD	Verizon	N/A
(240) 293-####	Silver Spring , MD	Starpower Communications	N/A
(240) 294-####	Laurel , MD	XO Communications	N/A
(240) 295-####	Laurel , MD	Cavalier Telephone	N/A
(240) 296-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 297-####	Silver Spring , MD	Level 3 Communications	N/A
(240) 298-####	Leonardtown , MD	Verizon	N/A
(240) 299-####	Waldorf , MD	Sprint	N/A
(240) 300-####	Waldorf , MD	Verizon	12/07/10
(240) 302-####	Laurel , MD	AT&T	09/28/16
(240) 303-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 304-####	Silver Spring , MD	Sprint	07/03/02
(240) 305-####	Silver Spring , MD	Sprint	N/A
(240) 306-####	Gaithersburg , MD	Allegiance Telecom	N/A
(240) 307-####	Emmitsburg , MD	AT&T	03/27/03
(240) 308-####	Damascus , MD	AT&T	N/A
(240) 309-####	Leonardtown , MD	Verizon	09/10/12
(240) 310-####	Hagerstown , MD	United States Cellular	N/A
(240) 312-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 313-####	Hagerstown , MD	Verizon	N/A
(240) 314-####	Silver Spring , MD	Verizon	N/A
(240) 315-####	Frederick , MD	Verizon	N/A
(240) 316-####	Silver Spring , MD	Sprint	N/A
(240) 317-####	Lexington Park Great Mills , MD	Starpower Communications	N/A
(240) 318-####	Silver Spring , MD	Verizon	N/A
(240) 319-####	Laurel , MD	Verizon	06/06/08
(240) 320-####	Waldorf , MD	Cavalier Eas	N/A
(240) 321-####	Oakland , MD	United States Cellular	N/A
(240) 322-####	Mccoole , MD	Core Communications	N/A
(240) 323-####	Emmitsburg , MD	Core Communications	N/A
(240) 324-####	Ashton , MD	YMax Communications	10/08/08
(240) 325-####	Damascus , MD	Core Communications	N/A
(240) 326-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 327-####	Gaithersburg , MD	Core Communications	N/A
(240) 328-####	Silver Spring , MD	Verizon	N/A
(240) 329-####	Hagerstown , MD	Level 3 Communications	N/A
(240) 330-####	Silver Spring , MD	Sprint	12/14/07
(240) 331-####	Silver Spring , MD	Peerless Network	N/A
(240) 332-####	Tompkinsville , MD	Peerless Network	N/A
(240) 333-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 334-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 335-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 336-####	Silver Spring , MD	Core Communications	N/A
(240) 337-####	Silver Spring , MD	Peerless Network	N/A
(240) 338-####	Silver Spring , MD	Verizon	N/A
(240) 339-####	Silver Spring , MD	Cavalier Eas	N/A
(240) 340-####	Silver Spring , MD	Sprint	08/18/11
(240) 341-####	Buckeystown , MD	Verizon	02/25/09
(240) 342-####	Ashton , MD	Starpower Communications	N/A
(240) 343-####	Hancock , MD	Verizon	05/10/11
(240) 344-####	Frederick , MD	AT&T	10/15/02
(240) 345-####	Ashton , MD	Level 3 Communications	03/09/06
(240) 346-####	Waldorf , MD	Sprint	N/A
(240) 347-####	Hagerstown , MD	Bandwidth.com	08/04/08
(240) 348-####	Silver Spring , MD	Level 3 Communications	N/A
(240) 349-####	La Plata , MD	Global Crossing Local Services	N/A
(240) 350-####	Silver Spring , MD	Sprint	N/A
(240) 351-####	Silver Spring , MD	Sprint	N/A
(240) 352-####	La Plata , MD	Peerless Network	N/A
(240) 353-####	Silver Spring , MD	Sprint	N/A
(240) 354-####	Silver Spring , MD	Sprint	N/A
(240) 355-####	Silver Spring , MD	Sprint	N/A
(240) 356-####	Myersville , MD	Level 3 Communications	N/A
(240) 357-####	Frederick , MD	Verizon	06/12/06
(240) 358-####	Damascus , MD	Peerless Network	N/A
(240) 359-####	Indian Head , MD	Peerless Network	N/A
(240) 360-####	Laurel , MD	Omnipoint Communications	09/17/13
(240) 361-####	Gaithersburg , MD	Cavalier Telephone	N/A
(240) 362-####	Cumberland , MD	Verizon	N/A
(240) 363-####	Silver Spring , MD	Global Naps	N/A
(240) 364-####	Gaithersburg , MD	Cavalier Eas	05/09/01
(240) 365-####	Damascus , MD	Baltimore-Washington Telephone	N/A
(240) 366-####	Williamsport , MD	AT&T	N/A
(240) 367-####	Frederick , MD	Sprint	10/18/02
(240) 368-####	Waldorf , MD	Peerless Network	N/A
(240) 369-####	Mount Airy , MD	Core Communications	N/A
(240) 370-####	Silver Spring , MD	Sprint	12/14/07
(240) 371-####	Silver Spring , MD	Peerless Network	N/A
(240) 372-####	Gaithersburg , MD	Sprint	N/A
(240) 373-####	Silver Spring , MD	Verizon	N/A
(240) 374-####	Laurel , MD	Global Crossing Local Services	N/A
(240) 375-####	Silver Spring , MD	Sprint	N/A
(240) 376-####	Hughesville , MD	Peerless Network	N/A
(240) 377-####	Indian Head , MD	Global Crossing Local Services	N/A
(240) 378-####	Cumberland , MD	Core Communications	N/A
(240) 379-####	Frederick , MD	Verizon	N/A
(240) 380-####	Silver Spring , MD	Verizon	09/17/07
(240) 381-####	Silver Spring , MD	AT&T	N/A
(240) 382-####	Hagerstown , MD	Teleport Communications	06/11/09
(240) 383-####	Silver Spring , MD	AT&T	N/A
(240) 384-####	Lexington Park Great Mills , MD	Peerless Network	N/A
(240) 385-####	Myersville , MD	Verizon	N/A
(240) 386-####	Silver Spring , MD	Verizon	N/A
(240) 387-####	Silver Spring , MD	Cavalier Eas	N/A
(240) 388-####	Gaithersburg , MD	Sprint	11/04/02
(240) 389-####	Ashton , MD	ATX Telecommunications	N/A
(240) 390-####	Ashton , MD	Cavalier Telephone	N/A
(240) 391-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 392-####	Silver Spring , MD	Starpower Communications	N/A
(240) 393-####	Silver Spring , MD	Verizon	N/A
(240) 394-####	Mount Airy , MD	AT&T	12/13/04
(240) 395-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 396-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 397-####	Frederick , MD	Verizon	03/06/09
(240) 398-####	Silver Spring , MD	Sprint	07/03/02
(240) 399-####	Silver Spring , MD	XO Communications	N/A
(240) 400-####	Silver Spring , MD	Sprint	08/18/11
(240) 401-####	Silver Spring , MD	AT&T	N/A
(240) 402-####	Silver Spring , MD	Verizon	09/21/10
(240) 403-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 404-####	Gaithersburg , MD	XO Communications	02/13/01
(240) 405-####	Frederick , MD	US LEC Communication	07/27/04
(240) 406-####	Silver Spring , MD	Cricket Communications	09/17/09
(240) 407-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 408-####	Silver Spring , MD	Cricket Communications	10/14/09
(240) 409-####	Frederick , MD	AT&T	N/A
(240) 412-####	Waldorf , MD	Sprint	01/16/01
(240) 413-####	Silver Spring , MD	Omnipoint Communications	03/12/01
(240) 414-####	Silver Spring , MD	Peerless Network	N/A
(240) 415-####	Frederick , MD	YMax Communications	12/16/08
(240) 416-####	Waldorf , MD	AT&T	05/18/01
(240) 417-####	Silver Spring , MD	Sprint	N/A
(240) 418-####	Silver Spring , MD	Sprint	11/12/01
(240) 419-####	Waldorf , MD	Verizon	10/29/07
(240) 420-####	Hagerstown , MD	Verizon	N/A
(240) 421-####	Silver Spring , MD	Omnipoint Communications	04/09/01
(240) 422-####	Frederick , MD	Omnipoint Communications	05/15/02
(240) 423-####	Silver Spring , MD	Omnipoint Communications	05/21/01
(240) 424-####	Silver Spring , MD	Sprint	11/16/07
(240) 425-####	Silver Spring , MD	DSLNET Communications	01/25/01
(240) 426-####	Silver Spring , MD	Sprint	10/25/01
(240) 427-####	Waldorf , MD	XO Communications	04/23/01
(240) 428-####	Silver Spring , MD	Bandwidth.com	N/A
(240) 429-####	Silver Spring , MD	Verizon	12/19/06
(240) 430-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 431-####	Lexington Park Great Mills , MD	Sprint	N/A
(240) 432-####	Silver Spring , MD	Sprint	N/A
(240) 433-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 434-####	Leonardtown , MD	Broadwing Communications	N/A
(240) 435-####	Waldorf , MD	Verizon	05/07/09
(240) 436-####	Buckeystown , MD	Telcove Operations	N/A
(240) 437-####	Ashton , MD	XO Communications	N/A
(240) 438-####	Silver Spring , MD	Sprint	08/15/11
(240) 439-####	Frederick , MD	Verizon	06/06/08
(240) 440-####	Frederick , MD	Cricket Communications	02/27/09
(240) 441-####	Silver Spring , MD	Omnipoint Communications	06/06/01
(240) 442-####	Oakland , MD	Verizon	05/22/01
(240) 444-####	Laurel , MD	Verizon	09/07/11
(240) 445-####	Silver Spring , MD	Sprint	11/10/11
(240) 446-####	Frederick , MD	Verizon	08/09/01
(240) 447-####	Silver Spring , MD	AT&T	N/A
(240) 448-####	Waldorf , MD	Sprint	09/07/11
(240) 449-####	Gaithersburg , MD	AT&T	N/A
(240) 450-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 451-####	Thurmont , MD	Neutral Tandem	09/02/16
(240) 452-####	Hagerstown , MD	Lumos Network	07/22/10
(240) 453-####	Silver Spring , MD	Verizon	N/A
(240) 454-####	Gaithersburg , MD	Paetec Communications	04/22/05
(240) 455-####	Silver Spring , MD	Paetec Communications	06/20/01
(240) 456-####	Laurel , MD	Verizon	N/A
(240) 457-####	Frederick , MD	Verizon	09/04/08
(240) 458-####	Waldorf , MD	Verizon	10/04/11
(240) 459-####	Laurel , MD	Verizon	07/27/10
(240) 460-####	Silver Spring , MD	AT&T	N/A
(240) 461-####	Silver Spring , MD	AT&T	N/A
(240) 462-####	Silver Spring , MD	Sprint	N/A
(240) 463-####	Silver Spring , MD	AT&T	N/A
(240) 464-####	Silver Spring , MD	Sprint	N/A
(240) 465-####	Silver Spring , MD	Peerless Network	N/A
(240) 466-####	Mechanicsville , MD	AT&T	N/A
(240) 467-####	Silver Spring , MD	Comcast Phone	04/25/13
(240) 468-####	Silver Spring , MD	Sprint	11/16/07
(240) 469-####	Hagerstown , MD	Sprint	02/14/08
(240) 470-####	Laurel , MD	Verizon	10/04/11
(240) 471-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 472-####	Silver Spring , MD	AT&T	N/A
(240) 473-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 474-####	Gaithersburg , MD	Baltimore-Washington Telephone	05/22/15
(240) 475-####	Silver Spring , MD	AT&T	N/A
(240) 476-####	Silver Spring , MD	Omnipoint Communications	02/21/01
(240) 477-####	Gaithersburg , MD	Lightwave Communications	05/20/05
(240) 478-####	Silver Spring , MD	AT&T	07/27/04
(240) 479-####	Silver Spring , MD	Verizon	04/07/08
(240) 480-####	Silver Spring , MD	Sprint	09/27/10
(240) 481-####	Silver Spring , MD	Omnipoint Communications	05/11/01
(240) 482-####	Silver Spring , MD	US LEC Communication	N/A
(240) 483-####	Silver Spring , MD	Comcast Phone	N/A
(240) 484-####	Laurel , MD	AT&T	06/12/17
(240) 485-####	Silver Spring , MD	US LEC Communication	N/A
(240) 486-####	Silver Spring , MD	Omnipoint Communications	03/12/01
(240) 487-####	Silver Spring , MD	US LEC Communication	N/A
(240) 488-####	Oakland , MD	Shentel Communications	05/16/12
(240) 489-####	Poolesville , MD	XO Communications	02/13/01
(240) 490-####	Middletown , MD	Omnipoint Communications	06/12/01
(240) 491-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 492-####	Silver Spring , MD	US LEC Communication	N/A
(240) 493-####	Silver Spring , MD	US LEC Communication	N/A
(240) 494-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 495-####	Silver Spring , MD	Verizon	10/29/13
(240) 496-####	Leonardtown , MD	Verizon	03/17/16
(240) 497-####	Silver Spring , MD	Verizon	N/A
(240) 498-####	Silver Spring , MD	Sprint	N/A
(240) 499-####	Silver Spring , MD	US LEC Communication	N/A
(240) 500-####	Hagerstown , MD	US LEC Communication	10/21/10
(240) 501-####	Silver Spring , MD	Sprint	10/08/01
(240) 502-####	Silver Spring , MD	Sprint	10/04/11
(240) 503-####	Tompkinsville , MD	Peerless Network	04/09/13
(240) 504-####	Silver Spring , MD	Sprint	10/04/11
(240) 505-####	Silver Spring , MD	Omnipoint Communications	10/31/01
(240) 506-####	Silver Spring , MD	AT&T	01/09/02
(240) 507-####	Silver Spring , MD	Verizon	09/05/08
(240) 508-####	Silver Spring , MD	Sprint	N/A
(240) 509-####	Silver Spring , MD	Bandwidth.com	03/31/08
(240) 510-####	Silver Spring , MD	XO Communications	N/A
(240) 512-####	Silver Spring , MD	Core Communications	08/08/06
(240) 513-####	Hagerstown , MD	Sprint	10/19/11
(240) 514-####	Silver Spring , MD	US LEC Communication	N/A
(240) 515-####	Silver Spring , MD	AT&T	06/20/01
(240) 516-####	Silver Spring , MD	US LEC Communication	N/A
(240) 517-####	Laurel , MD	Verizon	10/28/14
(240) 518-####	Waldorf , MD	Sprint	10/21/11
(240) 519-####	Silver Spring , MD	Sprint	11/10/11
(240) 520-####	Hagerstown , MD	Sprint	03/29/06
(240) 522-####	Cumberland , MD	Sprint	12/12/01
(240) 523-####	La Plata , MD	XO Communications	02/13/01
(240) 524-####	Laurel , MD	Peerless Network	N/A
(240) 525-####	Silver Spring , MD	Peerless Network	N/A
(240) 526-####	Leonardtown , MD	Peerless Network	N/A
(240) 527-####	Hagerstown , MD	Verizon	N/A
(240) 528-####	Hughesville , MD	Broadwing Communications	N/A
(240) 529-####	Frederick , MD	Verizon	N/A
(240) 530-####	Waldorf , MD	Local Acces	08/01/13
(240) 531-####	Silver Spring , MD	TELNYX LLC	03/07/17
(240) 532-####	Silver Spring , MD	Verizon	10/29/13
(240) 533-####	Silver Spring , MD	Teleport Communications	N/A
(240) 534-####	Silver Spring , MD	Verizon	04/11/16
(240) 535-####	Silver Spring , MD	AT&T	01/09/01
(240) 536-####	Ashton , MD	Peerless Network	N/A
(240) 537-####	Hagerstown , MD	ATLANTECH ONLINE, INC. - MD	09/15/17
(240) 538-####	Leonardtown , MD	XO Communications	02/13/01
(240) 539-####	Silver Spring , MD	Peerless Network	N/A
(240) 540-####	Silver Spring , MD	WIDE VOICE, LLC - MD	10/05/16
(240) 541-####	Silver Spring , MD	Sprint	10/31/11
(240) 542-####	Silver Spring , MD	US LEC Communication	N/A
(240) 543-####	Silver Spring , MD	Sprint	07/25/06
(240) 544-####	Silver Spring , MD	US LEC Communication	N/A
(240) 545-####	Silver Spring , MD	US LEC Communication	N/A
(240) 546-####	Silver Spring , MD	US LEC Communication	N/A
(240) 547-####	Laurel , MD	Level 3 Communications	N/A
(240) 548-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 549-####	Frederick , MD	Verizon	03/17/16
(240) 550-####	Silver Spring , MD	Cricket Communications	03/26/09
(240) 551-####	Silver Spring , MD	Cricket Communications	03/25/09
(240) 552-####	Silver Spring , MD	Cricket Communications	03/25/09
(240) 553-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 554-####	Laurel , MD	Allegiance Telecom	N/A
(240) 555-####	Silver Spring , MD	Verizon	N/A
(240) 556-####	Silver Spring , MD	Paetec Communications	N/A
(240) 557-####	Silver Spring , MD	Omnipoint Communications	03/14/17
(240) 558-####	Silver Spring , MD	Cavalier Telephone	N/A
(240) 559-####	Ashton , MD	Allegiance Telecom	N/A
(240) 560-####	Silver Spring , MD	XO Communications	04/23/01
(240) 561-####	Leonardtown , MD	Verizon	07/07/08
(240) 562-####	Gaithersburg , MD	Verizon	06/12/15
(240) 563-####	Silver Spring , MD	Neutral Tandem	07/05/17
(240) 564-####	Laurel , MD	Verizon	09/22/17
(240) 565-####	Laurel , MD	Omnipoint Communications	12/30/05
(240) 566-####	Frederick , MD	Verizon	06/11/02
(240) 567-####	Silver Spring , MD	Verizon	07/12/06
(240) 568-####	Laurel , MD	Verizon	N/A
(240) 569-####	Flintstone , MD	Bandwidth.com	09/22/17
(240) 570-####	Ashton , MD	Neutral Tandem	02/24/16
(240) 572-####	Leonardtown , MD	Verizon	11/15/17
(240) 573-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 575-####	Frederick , MD	Level 3 Communications	12/30/05
(240) 576-####	Hagerstown , MD	VONAGE NETWORK INC.	12/20/17
(240) 577-####	Leonardtown , MD	Verizon	08/09/06
(240) 578-####	Frederick , MD	Verizon	07/08/11
(240) 580-####	Cumberland , MD	Sprint	06/14/01
(240) 581-####	Laurel , MD	Paetec Communications	N/A
(240) 582-####	Silver Spring , MD	Verizon	N/A
(240) 583-####	Laurel , MD	Verizon	04/28/10
(240) 585-####	Waldorf , MD	Verizon	06/29/11
(240) 586-####	Frederick , MD	Verizon	12/22/06
(240) 587-####	Leonardtown , MD	Verizon	07/06/09
(240) 592-####	Silver Spring , MD	Verizon	07/01/16
(240) 593-####	Laurel , MD	Omnipoint Communications	03/13/01
(240) 595-####	Silver Spring , MD	Verizon	09/13/06
(240) 597-####	Gaithersburg , MD	Peerless Network	N/A
(240) 599-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 600-####	Silver Spring , MD	Sprint	04/27/11
(240) 601-####	Silver Spring , MD	Sprint	N/A
(240) 602-####	Silver Spring , MD	Sprint	N/A
(240) 603-####	Silver Spring , MD	Sprint	N/A
(240) 604-####	Silver Spring , MD	Sprint	N/A
(240) 605-####	Silver Spring , MD	Sprint	N/A
(240) 606-####	Silver Spring , MD	Sprint	N/A
(240) 607-####	Waldorf , MD	Global Crossing Local Services	N/A
(240) 608-####	Frederick , MD	365 Wireless	03/11/13
(240) 609-####	Cumberland , MD	AT&T	09/11/14
(240) 612-####	Silver Spring , MD	TW Telecom	N/A
(240) 613-####	Silver Spring , MD	US LEC Communication	04/05/12
(240) 614-####	Silver Spring , MD	Metro PCS	07/16/13
(240) 615-####	Silver Spring , MD	Metro PCS	05/29/13
(240) 616-####	Silver Spring , MD	Verizon	N/A
(240) 617-####	Hagerstown , MD	Shentel Communications	05/12/14
(240) 618-####	Silver Spring , MD	Verizon	10/07/14
(240) 619-####	Silver Spring , MD	Verizon	N/A
(240) 620-####	Silver Spring , MD	Verizon	N/A
(240) 621-####	Silver Spring , MD	Verizon	N/A
(240) 623-####	Silver Spring , MD	Bandwidth.com	12/08/14
(240) 624-####	Silver Spring , MD	Verizon	N/A
(240) 625-####	Hagerstown , MD	Sprint	04/17/01
(240) 626-####	Frederick , MD	Sprint	N/A
(240) 627-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 629-####	Frederick , MD	Verizon	N/A
(240) 630-####	Silver Spring , MD	Bandwidth.com	10/31/11
(240) 631-####	Gaithersburg , MD	Verizon	N/A
(240) 632-####	Gaithersburg , MD	Verizon	N/A
(240) 633-####	Hughesville , MD	Baltimore-Washington Telephone	05/22/15
(240) 636-####	Laurel , MD	Omnipoint Communications	N/A
(240) 638-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 640-####	Waldorf , MD	Cricket Communications	03/24/09
(240) 641-####	Silver Spring , MD	Peerless Network	N/A
(240) 643-####	Silver Spring , MD	Omnipoint Communications	05/16/02
(240) 644-####	Silver Spring , MD	XO Communications	N/A
(240) 645-####	Silver Spring , MD	XO Communications	N/A
(240) 646-####	Laurel , MD	Cavalier Eas	N/A
(240) 650-####	Silver Spring , MD	Broadvox	11/17/11
(240) 651-####	Frederick , MD	Halo Wireless	11/28/11
(240) 652-####	Mechanicsville , MD	XO Communications	02/13/01
(240) 654-####	Gaithersburg , MD	AT&T	05/19/06
(240) 655-####	Kitzmiller , MD	Neutral Tandem	12/18/17
(240) 657-####	Frostburg , MD	Verizon	01/06/16
(240) 660-####	Silver Spring , MD	Verizon	03/31/15
(240) 661-####	Lexington Park Great Mills , MD	Baltimore-Washington Telephone	05/21/15
(240) 662-####	Silver Spring , MD	Verizon	N/A
(240) 665-####	Silver Spring , MD	Omnipoint Communications	01/09/17
(240) 666-####	Nanjemoy , MD	VOXBEAM TELECOMMUNICATIONS INC. - MD	06/25/15
(240) 667-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 668-####	Damascus , MD	Starpower Communications	N/A
(240) 669-####	Silver Spring , MD	Comcast Phone	N/A
(240) 670-####	Silver Spring , MD	Local Acces	N/A
(240) 671-####	Silver Spring , MD	Sprint	N/A
(240) 672-####	Silver Spring , MD	Verizon	N/A
(240) 674-####	Frederick , MD	Sprint	N/A
(240) 675-####	Myersville , MD	AT&T	N/A
(240) 676-####	Silver Spring , MD	Verizon	N/A
(240) 678-####	Silver Spring , MD	Verizon	N/A
(240) 681-####	Brandywine , MD	ATX Telecommunications	10/30/03
(240) 682-####	Waldorf , MD	Starpower Communications	N/A
(240) 683-####	Gaithersburg , MD	Verizon	N/A
(240) 684-####	Silver Spring , MD	Verizon	N/A
(240) 685-####	Brandywine , MD	Global Crossing Local Services	N/A
(240) 686-####	Gaithersburg , MD	Verizon	N/A
(240) 687-####	Silver Spring , MD	Verizon	N/A
(240) 688-####	Silver Spring , MD	Verizon	06/12/06
(240) 690-####	Gaithersburg , MD	Teleport Communications	11/10/16
(240) 691-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 694-####	Silver Spring , MD	Verizon	N/A
(240) 695-####	Silver Spring , MD	Verizon	N/A
(240) 696-####	Silver Spring , MD	Level 3 Communications	N/A
(240) 699-####	Buckeystown , MD	Verizon	05/22/01
(240) 701-####	Silver Spring , MD	Cricket Communications	03/25/09
(240) 702-####	Gaithersburg , MD	Verizon	10/07/14
(240) 704-####	Silver Spring , MD	Cricket Communications	03/25/09
(240) 705-####	Silver Spring , MD	Cricket Communications	03/25/09
(240) 706-####	Silver Spring , MD	Cricket Communications	03/26/09
(240) 707-####	Hagerstown , MD	AT&T	01/27/12
(240) 708-####	Laurel , MD	Level 3 Communications	N/A
(240) 712-####	Laurel , MD	Verizon	11/01/11
(240) 713-####	Laurel , MD	Peerless Network	11/02/11
(240) 714-####	Silver Spring , MD	Omnipoint Communications	02/20/15
(240) 715-####	Silver Spring , MD	Global Crossing Local Services	N/A
(240) 716-####	Silver Spring , MD	Omnipoint Communications	11/15/13
(240) 718-####	Lexington Park Great Mills , MD	XO Communications	02/13/01
(240) 719-####	Silver Spring , MD	Verizon	04/11/16
(240) 720-####	Gaithersburg , MD	Global Crossing Local Services	N/A
(240) 722-####	Ashton , MD	Global Crossing Local Services	N/A
(240) 723-####	Silver Spring , MD	Verizon	N/A
(240) 724-####	Silver Spring , MD	Cavalier Eas	N/A
(240) 725-####	Lexington Park Great Mills , MD	Verizon	N/A
(240) 727-####	Cumberland , MD	AT&T	N/A
(240) 731-####	Silver Spring , MD	AT&T	N/A
(240) 732-####	Mount Airy , MD	AT&T	11/12/15
(240) 734-####	Smithsburg , MD	Bandwidth.com	03/22/12
(240) 737-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 740-####	Silver Spring , MD	ATLANTECH ONLINE, INC. - MD	09/03/15
(240) 743-####	Silver Spring , MD	Local Acces	N/A
(240) 744-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 745-####	Damascus , MD	XO Communications	N/A
(240) 747-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 750-####	Gaithersburg , MD	AT&T	05/06/05
(240) 751-####	Gaithersburg , MD	Telcove Operations	N/A
(240) 752-####	Silver Spring , MD	Telcove Operations	N/A
(240) 753-####	Silver Spring , MD	Telcove Operations	N/A
(240) 754-####	Waldorf , MD	Level 3 Communications	11/11/11
(240) 755-####	Laurel , MD	Comcast Phone	01/05/06
(240) 757-####	Silver Spring , MD	Peerless Network	N/A
(240) 758-####	Laurel , MD	AT&T	03/03/16
(240) 760-####	Silver Spring , MD	Verizon	09/22/15
(240) 762-####	Silver Spring , MD	Verizon	08/22/12
(240) 763-####	Silver Spring , MD	Bandwidth.com	10/01/15
(240) 764-####	Silver Spring , MD	XO Communications	N/A
(240) 765-####	Silver Spring , MD	XO Communications	N/A
(240) 766-####	Silver Spring , MD	XO Communications	N/A
(240) 767-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 770-####	Silver Spring , MD	Comcast Phone	11/22/04
(240) 771-####	Poolesville , MD	Neutral Tandem	02/18/16
(240) 772-####	Frederick , MD	Verizon	11/17/11
(240) 773-####	Silver Spring , MD	Verizon	N/A
(240) 774-####	Lonaconing , MD	Bandwidth.com	10/05/15
(240) 775-####	Westernport , MD	Bandwidth.com	10/05/15
(240) 776-####	La Plata , MD	Broadwing Communications	N/A
(240) 777-####	Silver Spring , MD	Verizon	N/A
(240) 778-####	Silver Spring , MD	XO Communications	N/A
(240) 779-####	Ashton , MD	Cavalier Eas	N/A
(240) 780-####	Gaithersburg , MD	Broadwing Communications	N/A
(240) 781-####	Silver Spring , MD	Verizon	08/18/15
(240) 782-####	Damascus , MD	Global Crossing Local Services	N/A
(240) 783-####	Silver Spring , MD	MTE Paging Network	N/A
(240) 784-####	Myersville , MD	Omnipoint Communications	06/06/01
(240) 786-####	Laurel , MD	Broadwing Communications	N/A
(240) 787-####	Brandywine , MD	Broadwing Communications	N/A
(240) 788-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 790-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 793-####	Gaithersburg , MD	Sprint	03/15/01
(240) 794-####	Lexington Park Great Mills , MD	Broadwing Communications	N/A
(240) 800-####	Silver Spring , MD	Core Communications	06/22/12
(240) 801-####	Gaithersburg , MD	Verizon	10/04/13
(240) 802-####	Silver Spring , MD	365 Wireless	05/10/13
(240) 803-####	Cumberland , MD	AT&T	01/27/12
(240) 804-####	Tompkinsville , MD	XO Communications	04/23/01
(240) 805-####	Gaithersburg , MD	Verizon	11/17/15
(240) 806-####	Indian Head , MD	Peerless Network	09/30/15
(240) 808-####	Leonardtown , MD	Verizon	03/31/15
(240) 810-####	Silver Spring , MD	Omnipoint Communications	04/05/16
(240) 812-####	Poolesville , MD	Global Crossing Local Services	N/A
(240) 813-####	Gaithersburg , MD	ATX Telecommunications	N/A
(240) 815-####	Frederick , MD	Verizon	11/17/15
(240) 816-####	Keedysville , MD	Bandwidth.com	10/05/15
(240) 817-####	Ashton , MD	Omnipoint Communications	01/12/16
(240) 818-####	Myersville , MD	Verizon	N/A
(240) 821-####	Silver Spring , MD	Lightwave Communications	05/27/05
(240) 823-####	Brandywine , MD	XO Communications	02/13/01
(240) 825-####	Silver Spring , MD	Verizon	03/17/16
(240) 826-####	Silver Spring , MD	Verizon	05/07/07
(240) 828-####	Silver Spring , MD	TELNYX LLC	N/A
(240) 830-####	Silver Spring , MD	Comcast Phone	11/10/15
(240) 831-####	Frederick , MD	Neutral Tandem	04/26/16
(240) 832-####	Silver Spring , MD	Sprint	N/A
(240) 833-####	Silver Spring , MD	XO Communications	N/A
(240) 837-####	Hughesville , MD	XO Communications	02/13/01
(240) 838-####	Silver Spring , MD	Omnipoint Communications	03/12/01
(240) 839-####	Silver Spring , MD	Verizon	01/13/07
(240) 841-####	Laurel , MD	Allegiance Telecom	N/A
(240) 842-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 843-####	Silver Spring , MD	Allegiance Telecom	N/A
(240) 844-####	Ridge , MD	XO Communications	02/13/01
(240) 845-####	Silver Spring , MD	XO Communications	N/A
(240) 846-####	Silver Spring , MD	XO Communications	N/A
(240) 847-####	Silver Spring , MD	Neutral Tandem	12/09/15
(240) 848-####	Gaithersburg , MD	Sprint	N/A
(240) 850-####	Hagerstown , MD	Peerless Network	05/25/16
(240) 855-####	Silver Spring , MD	Sprint	10/09/06
(240) 856-####	Laurel , MD	Verizon	04/11/16
(240) 857-####	Silver Spring , MD	TW Telecom	N/A
(240) 858-####	Silver Spring , MD	Verizon	07/12/16
(240) 859-####	Ashton , MD	Broadvox	07/11/16
(240) 860-####	Cumberland , MD	Peerless Network	08/23/16
(240) 862-####	Mount Savage , MD	Neutral Tandem	09/02/16
(240) 863-####	Silver Spring , MD	TW Telecom	N/A
(240) 864-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 865-####	Silver Spring , MD	Level 3 Communications	N/A
(240) 867-####	Silver Spring , MD	COMMIO, LLC	06/20/17
(240) 868-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 870-####	Middletown , MD	Neutral Tandem	09/02/16
(240) 876-####	Silver Spring , MD	Sprint	N/A
(240) 877-####	Frederick , MD	Neutral Tandem	08/25/16
(240) 878-####	Hagerstown , MD	COMMIO, LLC	08/03/17
(240) 880-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 882-####	Silver Spring , MD	Sprint	N/A
(240) 883-####	Ashton , MD	Broadwing Communications	N/A
(240) 888-####	Silver Spring , MD	AT&T	N/A
(240) 892-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 893-####	Silver Spring , MD	AT&T	N/A
(240) 895-####	Lexington Park Great Mills , MD	Verizon	N/A
(240) 897-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 898-####	Silver Spring , MD	Broadwing Communications	N/A
(240) 899-####	Silver Spring , MD	Omnipoint Communications	03/13/01
(240) 900-####	Silver Spring , MD	Neutral Tandem	02/18/15
(240) 901-####	La Plata , MD	CenturyLink	05/22/14
(240) 903-####	Indian Head , MD	Comcast Phone	12/03/13
(240) 904-####	Laurel , MD	Verizon	06/23/16
(240) 906-####	Silver Spring , MD	Omnipoint Communications	N/A
(240) 907-####	Silver Spring , MD	Verizon	07/12/16
(240) 908-####	Walkersville , MD	Neutral Tandem	09/02/16
(240) 912-####	Gaithersburg , MD	US LEC Communication	N/A
(240) 913-####	Damascus , MD	Neutral Tandem	09/02/16
(240) 915-####	New Market , MD	Neutral Tandem	09/02/16
(240) 917-####	Laurel , MD	AT&T	11/12/15
(240) 918-####	Ashton , MD	Omnipoint Communications	10/20/16
(240) 920-####	Cumberland , MD	Level 3 Communications	05/03/01
(240) 925-####	Leonardtown , MD	Verizon	08/09/01
(240) 929-####	Silver Spring , MD	Cavalier Eas	N/A
(240) 936-####	Silver Spring , MD	Verizon	N/A
(240) 938-####	Ashton , MD	Omnipoint Communications	06/06/01
(240) 949-####	Silver Spring , MD	Cavalier Eas	05/09/01
(240) 964-####	Cumberland , MD	Verizon	05/27/08
(240) 965-####	Silver Spring , MD	Paetec Communications	N/A
(240) 970-####	Silver Spring , MD	Broadvox	06/02/15
(240) 971-####	Frederick , MD	CenturyLink	08/02/16
(240) 972-####	Laurel , MD	Baltimore-Washington Telephone	05/26/15
(240) 976-####	Damascus , MD	Baltimore-Washington Telephone	N/A
(240) 979-####	Cumberland , MD	Level 3 Communications	N/A
(240) 985-####	Williamsport , MD	CenturyLink	10/17/16
(240) 986-####	Nanjemoy , MD	XO Communications	02/13/01
(240) 988-####	Silver Spring , MD	Sprint	N/A
(240) 993-####	Indian Head , MD	XO Communications	02/13/01
(240) 994-####	Silver Spring , MD	Verizon	N/A
(240) 996-####	Brunswick , MD	CenturyLink	10/17/16
(240) 997-####	Silver Spring , MD	Verizon	N/A
(240) 998-####	Hancock , MD	CenturyLink	10/17/16
(240) 999-####	Silver Spring , MD	Verizon	N/A

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240 Area Code Overview

Regions Within 240 Area Code

(240) Area Code | Track Name & Location | WhoEasy