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 47 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 331-312
| 0 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-01-07 |
|
| 331-312
| 1 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-01-07 |
|
| 331-312
| 2 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-09-17 |
|
| 331-312
| 3 |
Aurora |
IL |
|
732J NUSO, LLC |
358 |
|
2024-01-08 |
|
| 331-312
| 4 |
Aurora |
IL |
|
490J DISH WIRELESS, LLC |
358 |
|
2024-06-24 |
|
| 331-312
| 5 |
Aurora |
IL |
|
490J DISH WIRELESS, LLC |
358 |
|
2024-08-22 |
|
| 331-312
| 6 |
Aurora |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-12-19 |
|
| 331-312
| 7 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-09-23 |
|
| 331-312
| 8 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-09-23 |
|
| 331-312
| 9 |
Aurora |
IL |
|
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 |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 1 |
Naperville |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 2 |
Naperville |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 3 |
Naperville |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 4 |
Naperville |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2022-10-19 |
|
| 331-313
| 5 |
Naperville |
IL |
|
224C ONVOY, LLC |
358 |
|
2022-12-11 |
|
| 331-313
| 6 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2022-12-01 |
|
| 331-313
| 7 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2022-12-01 |
|
| 331-313
| 8 |
Naperville |
IL |
|
224C ONVOY, LLC |
358 |
|
2023-08-16 |
|
| 331-313
| 9 |
Naperville |
IL |
|
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 |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-01-20 |
|
| 331-314
| 1 |
Geneva |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2024-11-01 |
|
| 331-314
| 2 |
Geneva |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-09 |
|
| 331-314
| 3 |
Geneva |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-09 |
|
| 331-314
| 4 |
Geneva |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-09 |
|
| 331-314
| 5 |
Geneva |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2024-04-19 |
|
| 331-314
| 6 |
Geneva |
IL |
|
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-314
| 7 |
Geneva |
IL |
|
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-314
| 8 |
Geneva |
IL |
|
224C ONVOY, LLC |
358 |
|
2024-02-26 |
|
| 331-314
| 9 |
Geneva |
IL |
|
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 |
|
073H TELNYX LLC |
358 |
|
2017-04-24 |
|
| 331-315
| 1 |
Lombard |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-10-09 |
|
| 331-315
| 2 |
Lombard |
IL |
|
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2016-11-13 |
|
| 331-315
| 3 |
Lombard |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-10-09 |
|
| 331-315
| 4 |
Lombard |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-07-29 |
|
| 331-315
| 5 |
Lombard |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-05 |
|
| 331-315
| 6 |
Lombard |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 7 |
Lombard |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 8 |
Lombard |
IL |
|
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 9 |
Lombard |
IL |
|
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 |
|
939H COMMIO, LLC |
358 |
|
2024-03-09 |
|
| 331-316
| 1 |
Naperville |
IL |
|
939H COMMIO, LLC |
358 |
|
2024-03-09 |
|
| 331-316
| 2 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-05-10 |
|
| 331-316
| 3 |
Naperville |
IL |
|
224C ONVOY, LLC |
358 |
|
2024-05-24 |
|
| 331-316
| 4 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-06-08 |
|
| 331-316
| 5 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-06-08 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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