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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 331-312
| 5 |
Aurora |
IL |
CHCGILWUXMD |
490J DISH WIRELESS, LLC |
358 |
|
2024-08-22 |
|
| 331-312
| 6 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-12-19 |
|
| 331-312
| 7 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-09-23 |
|
| 331-312
| 8 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-09-23 |
|
| 331-312
| 9 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-09-23 |
|
| 331-313
| A |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
|
|
| 331-313
| 0 |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 1 |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 2 |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 3 |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 4 |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 5 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2022-12-11 |
|
| 331-313
| 6 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2022-12-01 |
|
| 331-313
| 7 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2022-12-01 |
|
| 331-313
| 8 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-08-16 |
|
| 331-313
| 9 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-08-16 |
|
| 331-314
| A |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-01-20 |
|
| 331-314
| 0 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-01-20 |
|
| 331-314
| 1 |
Geneva |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-11-01 |
|
| 331-314
| 2 |
Geneva |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-09 |
|
| 331-314
| 3 |
Geneva |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-09 |
|
| 331-314
| 4 |
Geneva |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-09 |
|
| 331-314
| 5 |
Geneva |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2024-04-19 |
|
| 331-314
| 6 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-314
| 7 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-314
| 8 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-314
| 9 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-315
| A |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 331-315
| 0 |
Lombard |
IL |
CHCGILWUJMD |
073H TELNYX LLC |
358 |
|
2017-04-24 |
|
| 331-315
| 1 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-10-09 |
|
| 331-315
| 2 |
Lombard |
IL |
CHCGILCPDS9 |
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2016-11-13 |
|
| 331-315
| 3 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-10-09 |
|
| 331-315
| 4 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-07-29 |
|
| 331-315
| 5 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-05 |
|
| 331-315
| 6 |
Lombard |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 7 |
Lombard |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 8 |
Lombard |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 9 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-22 |
|
| 331-316
| A |
Naperville |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-09 |
|
| 331-316
| 0 |
Naperville |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-09 |
|
| 331-316
| 1 |
Naperville |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-09 |
|
| 331-316
| 2 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-05-10 |
|
| 331-316
| 3 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-05-24 |
|
| 331-316
| 4 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-06-08 |
|
| 331-316
| 5 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-06-08 |
|
| 331-316
| 6 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-11 |
|
| 331-316
| 7 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-11 |
|
| 331-316
| 8 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-11 |
|
| 331-316
| 9 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-11 |
|
| 331-317
| A |
Hinsdale |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-10 |
|
| 331-317
| 0 |
Hinsdale |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-10 |
|
| 331-317
| 1 |
Hinsdale |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-10 |
|
| 331-317
| 2 |
Hinsdale |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-10 |
|
| 331-317
| 3 |
Hinsdale |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2024-03-10 |
|
| 331-317
| 4 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-05-11 |
|
| 331-317
| 5 |
Hinsdale |
IL |
CHCGILWBXSZ |
478J NUSO, LLC |
358 |
|
2024-06-04 |
|
| 331-317
| 6 |
Hinsdale |
IL |
CHCGILWBXSZ |
478J NUSO, LLC |
358 |
|
2024-06-04 |
|
| 331-317
| 7 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-12 |
|
| 331-317
| 8 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-12 |
|
| 331-317
| 9 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-12 |
|
| 331-318
| A |
Lemont |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 331-318
| 0 |
Lemont |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-16 |
|
| 331-318
| 1 |
Lemont |
IL |
|
515J IP HORIZON LLC |
358 |
|
2013-09-30 |
|
| 331-318
| 2 |
Lemont |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-16 |
|
| 331-318
| 3 |
Lemont |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2014-02-08 |
|
| 331-318
| 4 |
Lemont |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-16 |
|
| 331-318
| 5 |
Lemont |
IL |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2014-03-22 |
|
| 331-318
| 6 |
Lemont |
IL |
CHCGILCPDS9 |
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2014-02-27 |
|
| 331-318
| 7 |
Lemont |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2014-07-28 |
|
| 331-318
| 8 |
Lemont |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2014-08-14 |
|
| 331-318
| 9 |
Lemont |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2014-11-21 |
|
| 331-319
| A |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-29 |
|
| 331-319
| 0 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-29 |
|
| 331-319
| 1 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-29 |
|
| 331-319
| 2 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-29 |
|
| 331-319
| 3 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-29 |
|
| 331-319
| 4 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-29 |
|
| 331-319
| 5 |
Aurora |
IL |
CHCGILCPXPX |
732J NUSO, LLC |
358 |
|
2024-06-14 |
|
| 331-319
| 6 |
Aurora |
IL |
CHCGILCPXPX |
732J NUSO, LLC |
358 |
|
2024-06-14 |
|
| 331-319
| 7 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-11-22 |
|
| 331-319
| 8 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-11-22 |
|
| 331-319
| 9 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-12-19 |
|
| 331-320
| A |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 0 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 1 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 2 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 3 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 4 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 5 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 6 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-320
| 8 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-05-24 |
|
| 331-321
| A |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-321
| 0 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2017-05-22 |
|
| 331-321
| 1 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-04-18 |
|
| 331-321
| 2 |
Aurora |
IL |
EGVGILIFDS1 |
7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
358 |
|
2015-09-21 |
|
| 331-321
| 3 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-04-09 |
|
| 331-321
| 4 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-02-08 |
|
| 331-321
| 5 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-09-06 |
|
| 331-321
| 6 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2016-04-09 |
|
| 331-321
| 7 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-02-08 |
|
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Last updated: Wed, 18 Jun 2025 02:30:00 UTC
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