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  1. Area Code 331

331 Area Code Overview

State
IL
Major City
Aurora
Other Cities
Naperville, Downers Grove, Saint Charles, Lombard, Sugar Grove, Wheaton, Hinsdale, Plano, Glen Ellyn
Timezone
Central Daylight Time
Current Time
10:58 pm
Date First Active
Oct 21, 2011
Map

Regions Within 331 Area Code

RegionCity, StateCarrierDate Started
(331) 200-####Bartlett , ILT-Mobile07/11/11
(331) 201-####Downers Grove , ILVerizon01/06/12
(331) 202-####Elmhurst , ILSprint01/17/12
(331) 203-####Aurora , ILSprint10/12/11
(331) 204-####Bartlett , ILNeutral Tandem07/29/13
(331) 205-####Aurora , ILT-Mobile10/21/11
(331) 206-####Aurora , ILSprint10/12/11
(331) 207-####Yorkville , ILLevel 3 Communications11/01/11
(331) 208-####Aurora , ILSprint11/08/11
(331) 209-####Elmhurst , ILLevel 3 Communications01/17/12
(331) 210-####Saint Charles , ILPeerless Network03/06/12
(331) 212-####Aurora , ILVerizon04/05/12
(331) 213-####Naperville , ILVerizon09/06/11
(331) 214-####Downers Grove , ILVerizon06/20/12
(331) 215-####Naperville , ILVerizon09/28/12
(331) 216-####Oswego , ILAT&T10/31/12
(331) 218-####Wheaton , ILT-Mobile07/09/13
(331) 219-####Aurora , ILLevel 3 Communications03/16/17
(331) 220-####Aurora , ILSprint07/12/11
(331) 221-####Elmhurst , ILAT&T01/21/09
(331) 222-####Saint Charles , ILCricket Communications10/28/08
(331) 223-####Saint Charles , ILCricket Communications10/28/08
(331) 225-####Elmhurst , ILSprint08/22/11
(331) 226-####Naperville , ILT-Mobile03/20/17
(331) 227-####Sugar Grove , ILVerizon05/17/16
(331) 228-####Saint Charles , ILOvation Communications09/21/11
(331) 229-####Naperville , ILVerizon11/27/12
(331) 230-####Aurora , ILT-Mobile04/05/17
(331) 231-####Naperville , ILAT&T08/07/17
(331) 232-####West Chicago , ILAT&T08/08/17
(331) 233-####Downers Grove , ILLevel 3 Communications03/13/17
(331) 234-####Sugar Grove , ILVerizon07/08/13
(331) 235-####Saint Charles , ILAT&T10/17/17
(331) 236-####Wheaton , ILT-Mobile04/05/17
(331) 237-####Naperville , ILVerizon11/07/17
(331) 238-####Downers Grove , ILTeleport Communications12/19/17
(331) 239-####Yorkville , ILONVOY, LLC08/27/18
(331) 240-####West Chicago , ILPeerless Network04/10/13
(331) 241-####Lombard , ILINTRADO COMMUNICATIONS, LLC10/16/18
(331) 242-####Lombard , ILT-Mobile10/19/18
(331) 243-####Lombard , ILT-Mobile10/19/18
(331) 244-####Naperville , ILNeutral Tandem09/21/17
(331) 245-####Bartlett , ILT-Mobile04/18/13
(331) 246-####Lemont , ILT-Mobile10/19/18
(331) 247-####Naperville , ILVONAGE AMERICA, LLC11/21/18
(331) 248-####Geneva , ILComcast Phone07/06/07
(331) 249-####Naperville , ILONVOY, LLC12/05/18
(331) 250-####Aurora , ILT-Mobile04/10/12
(331) 251-####Downers Grove , ILVerizon12/05/12
(331) 252-####Warrenville , ILTeleport Communications06/02/16
(331) 253-####Lemont , ILT-Mobile10/27/14
(331) 254-####Sugar Grove , ILT-Mobile07/16/14
(331) 255-####Aurora , ILNeutral Tandem08/22/17
(331) 256-####Aurora , ILVerizon09/13/11
(331) 257-####Aurora , ILAT&T01/17/20
(331) 258-####Aurora , ILONVOY, LLCN/A
(331) 259-####Sugar Grove , ILPeerless NetworkN/A
(331) 260-####Downers Grove , ILTeleport Communications02/25/19
(331) 261-####Lemont , ILT-Mobile06/20/19
(331) 262-####Aurora , ILSprint07/30/08
(331) 263-####Itasca , ILNeutral Tandem03/11/16
(331) 264-####Hinsdale , ILLevel 3 Communications03/06/20
(331) 265-####Geneva , ILONVOY, LLCN/A
(331) 266-####Saint Charles , ILAT&T04/10/20
(331) 267-####Lombard , ILVONAGE AMERICA, LLC09/18/20
(331) 268-####Sugar Grove , ILT-Mobile01/14/21
(331) 269-####Aurora , ILT-Mobile05/14/21
(331) 271-####Hinsdale , ILONVOY, LLC10/21/20
(331) 276-####Saint Charles , ILVerizon11/10/14
(331) 281-####Naperville , ILAT&T10/25/12
(331) 299-####Hinsdale , ILFRACTEL, LLC01/04/21
(331) 300-####Aurora , ILT-Mobile03/17/16
(331) 301-####Aurora , ILLocal Acces03/13/13
(331) 302-####Aurora , ILVerizon02/11/13
(331) 303-####Elburn , ILVerizon04/22/13
(331) 304-####Bartlett , ILT-Mobile02/20/15
(331) 305-####Naperville , ILVerizon08/15/13
(331) 307-####Lombard , ILT-Mobile10/13/14
(331) 308-####Bartlett , ILBandwidth.com12/23/14
(331) 310-####Big Rock , ILBandwidth.com12/29/14
(331) 315-####Lombard , ILAT&T08/08/16
(331) 318-####Lemont , ILLocal Acces08/01/13
(331) 321-####Aurora , ILT-Mobile07/20/15
(331) 330-####Naperville , ILCricket Communications08/19/08
(331) 332-####Naperville , ILCricket Communications11/03/08
(331) 333-####Naperville , ILCricket Communications11/03/08
(331) 334-####Batavia , ILONVOY SPECTRUM, LLC06/02/21
(331) 336-####Aurora , ILFRACTEL, LLC10/11/19
(331) 341-####Plano , ILRADIANTIQ, LLC03/30/21
(331) 345-####Naperville , ILFRACTEL, LLC11/18/20
(331) 348-####Elburn , ILFRACTEL, LLC10/11/19
(331) 356-####Bartlett , ILFRACTEL, LLC10/10/19
(331) 385-####Aurora , ILAT&T09/28/16
(331) 388-####Sugar Grove , ILFRACTEL, LLC01/25/21
(331) 399-####Downers Grove , ILFRACTEL, LLC01/22/21
(331) 400-####Oswego , ILFRACTEL, LLC08/08/19
(331) 401-####Naperville , ILLevel 3 Communications12/14/15
(331) 422-####Saint Charles , ILLevel 3 Communications11/13/08
(331) 425-####Aurora , ILT-Mobile07/11/07
(331) 431-####Aurora , ILBandwidth.com05/26/10
(331) 442-####Saint Charles , ILVerizon10/30/08
(331) 444-####Naperville , ILVerizonN/A
(331) 452-####Aurora , ILVerizon09/20/07
(331) 454-####Aurora , ILCricket Communications05/07/09
(331) 456-####Roselle , ILFirst Communication12/05/07
(331) 457-####Naperville , ILVerizon11/14/08
(331) 462-####Lombard , ILXO Communications08/23/08
(331) 465-####West Chicago , ILAT&T10/17/07
(331) 472-####Naperville , ILT-Mobile10/22/08
(331) 481-####Downers Grove , ILVerizon10/29/08
(331) 500-####Geneva , ILFRACTEL, LLC01/04/21
(331) 529-####Naperville , ILFRACTEL, LLC08/08/19
(331) 551-####Lombard , ILCricket Communications11/05/08
(331) 575-####Aurora , ILSprint09/18/07
(331) 588-####Saint Charles , ILAT&T02/15/10
(331) 600-####Wheaton , ILFRACTEL, LLC08/08/19
(331) 625-####Downers Grove , ILVerizon10/16/09
(331) 642-####Elmhurst , ILBandwidth.comN/A
(331) 643-####Aurora , ILSprint09/18/07
(331) 645-####Elmhurst , ILSprint11/05/07
(331) 666-####Aurora , ILNeutral Tandem09/29/17
(331) 684-####Aurora , ILSigecom07/12/07
(331) 701-####Naperville , ILVerizon12/11/14
(331) 702-####Naperville , ILVerizon10/23/13
(331) 703-####West Chicago , ILT-Mobile10/24/13
(331) 704-####Kaneville , ILBandwidth.com04/21/15
(331) 707-####Aurora , ILT-Mobile08/23/16
(331) 716-####Wheaton , ILNeutral Tandem01/18/16
(331) 717-####Oswego , ILAT&T01/18/16
(331) 725-####Oswego , ILAT&TN/A
(331) 732-####Geneva , ILFRACTEL, LLC10/11/19
(331) 757-####Lemont , ILT-Mobile07/13/16
(331) 771-####Saint Charles , ILNeutral Tandem02/10/16
(331) 775-####Downers Grove , ILComcast Phone01/04/16
(331) 777-####Downers Grove , ILVerizonN/A
(331) 788-####Geneva , ILFRACTEL, LLC01/25/21
(331) 800-####West Chicago , ILNeutral Tandem09/29/17
(331) 801-####Downers Grove , ILTeleport Communications05/15/14
(331) 803-####Lemont , ILPeerless Network04/10/13
(331) 806-####Wheaton , ILComcast Phone06/11/15
(331) 808-####Plano , ILBandwidth.com06/05/15
(331) 814-####Naperville , ILT-Mobile06/25/15
(331) 825-####Geneva , ILDigital Network AccessN/A
(331) 826-####Elmhurst , ILSprint11/18/08
(331) 850-####Big Rock , ILRADIANTIQ, LLC03/30/21
(331) 867-####Yorkville , ILFRACTEL, LLC07/14/20
(331) 871-####West Chicago , ILNeutral Tandem02/17/16
(331) 888-####Warrenville , ILPeerless NetworkN/A
(331) 899-####Lombard , ILFRACTEL, LLC12/22/20
(331) 900-####Elmhurst , ILFRACTEL, LLC08/08/19
(331) 901-####Saint Charles , ILBandwidth.com04/23/15
(331) 903-####Downers Grove , ILSbc Internet Services05/15/14
(331) 946-####Glen Ellyn , ILFRACTEL, LLC07/14/20
(331) 979-####Elmhurst , ILComcast Phone03/03/15
(331) 980-####Aurora , ILT-Mobile10/13/14
(331) 998-####Downers Grove , ILVerizon09/16/15
(331) 999-####Oswego , ILBandwidth.comN/A

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

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