Local Calling Guide
Area code/prefix search
NPA: 331
[Rate centres in NPA 331]
[Dial plan for NPA 331]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 331-300
| 5 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-08-28 |
|
| 331-300
| 6 |
Aurora |
IL |
OKBRILOAXEX |
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
358 |
|
2016-09-02 |
|
| 331-300
| 7 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-08-30 |
|
| 331-300
| 8 |
Aurora |
IL |
|
515J IP HORIZON LLC |
358 |
|
2016-08-09 |
|
| 331-300
| 9 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-05-14 |
|
| 331-301
| A |
Aurora |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
|
|
| 331-301
| 0 |
Aurora |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2014-07-27 |
|
| 331-301
| 1 |
Aurora |
IL |
|
515J IP HORIZON LLC |
358 |
|
2013-05-04 |
|
| 331-301
| 2 |
Aurora |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2015-08-21 |
|
| 331-301
| 3 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2013-08-15 |
|
| 331-301
| 4 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2013-08-15 |
|
| 331-301
| 5 |
Aurora |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2015-07-10 |
|
| 331-301
| 6 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-08-14 |
|
| 331-301
| 7 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2013-09-06 |
|
| 331-301
| 8 |
Aurora |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2014-07-27 |
|
| 331-301
| 9 |
Aurora |
IL |
ELGNILOTGT5 |
5562 METROPCS, INC. |
358 |
|
2014-07-27 |
|
| 331-302
| A |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
| 331-302
| 0 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2013-04-11 |
|
| 331-302
| 1 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-03-30 |
|
| 331-302
| 2 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-03-30 |
|
| 331-302
| 3 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-03-30 |
|
| 331-302
| 4 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-03-30 |
|
| 331-302
| 5 |
Aurora |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2014-09-13 |
|
| 331-302
| 6 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2014-10-09 |
|
| 331-302
| 7 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-11-03 |
|
| 331-302
| 8 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2015-07-23 |
|
| 331-302
| 9 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2015-10-11 |
|
| 331-303
| A |
Elburn |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 331-303
| 0 |
Elburn |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-03-14 |
|
| 331-303
| 2 |
Elburn |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-03-14 |
|
| 331-303
| 3 |
Elburn |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2014-09-15 |
|
| 331-303
| 4 |
Elburn |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2014-09-15 |
|
| 331-303
| 5 |
Elburn |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-05-16 |
|
| 331-303
| 6 |
Elburn |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-05-16 |
|
| 331-303
| 7 |
Elburn |
IL |
CHCGILDT8MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
358 |
|
2014-07-15 |
|
| 331-303
| 8 |
Elburn |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-05-16 |
|
| 331-303
| 9 |
Elburn |
IL |
CHCGILWUJMD |
073H TELNYX LLC |
358 |
|
2018-06-28 |
|
| 331-304
| A |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-304
| 0 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-03-07 |
|
| 331-304
| 1 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-03-07 |
|
| 331-304
| 2 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2017-04-23 |
|
| 331-304
| 3 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2017-04-23 |
|
| 331-304
| 4 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2017-04-23 |
|
| 331-304
| 5 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2017-04-23 |
|
| 331-304
| 6 |
Bartlett |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2020-10-25 |
|
| 331-304
| 7 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-07-24 |
|
| 331-304
| 8 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-04-20 |
|
| 331-304
| 9 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2015-04-20 |
|
| 331-305
| A |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
| 331-305
| 0 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2013-10-11 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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