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 |
| 331-336
| 8 |
Aurora |
IL |
CHCGILWURMD |
965H FRACTEL, LLC |
358 |
|
2019-12-12 |
|
| 331-336
| 9 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-09-14 |
|
| 331-337
| A |
Oswego |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-02-23 |
|
| 331-337
| 7 |
Oswego |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-02-24 |
|
| 331-337
| 8 |
Oswego |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-02-23 |
|
| 331-337
| 9 |
Oswego |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-02-23 |
|
| 331-338
| A |
Aurora |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-03-22 |
|
| 331-338
| 0 |
Aurora |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-03-22 |
|
| 331-338
| 1 |
Aurora |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-03-22 |
|
| 331-338
| 2 |
Aurora |
IL |
|
624H ONVOY SPECTRUM, LLC |
358 |
|
2025-03-22 |
|
| 331-338
| 3 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-06-26 |
|
| 331-338
| 4 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-06-26 |
|
| 331-338
| 5 |
Aurora |
IL |
|
490J BOOST SUBSCRIBERCO L.L.C. |
358 |
|
2025-07-31 |
|
| 331-338
| 7 |
Aurora |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-03-24 |
|
| 331-338
| 8 |
Aurora |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-03-24 |
|
| 331-338
| 9 |
Aurora |
IL |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-03-24 |
|
| 331-339
| A |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-11-01 |
|
| 331-339
| 0 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-11-01 |
|
| 331-339
| 1 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-11-01 |
|
| 331-339
| 2 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-11-01 |
|
| 331-339
| 3 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2025-11-01 |
|
| 331-339
| 4 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-02-12 |
|
| 331-339
| 5 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-02-12 |
|
| 331-339
| 6 |
Aurora |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-02-12 |
|
| 331-339
| 8 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2026-01-05 |
|
| 331-339
| 9 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2026-02-20 |
|
| 331-340
| A |
Bensenville |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-12-27 |
|
| 331-340
| 0 |
Bensenville |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-12-27 |
|
| 331-341
| A |
Plano |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-341
| 0 |
Plano |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-03 |
|
| 331-341
| 1 |
Plano |
IL |
|
515J IP HORIZON LLC |
358 |
|
2021-06-27 |
|
| 331-341
| 2 |
Plano |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-27 |
|
| 331-341
| 3 |
Plano |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-27 |
|
| 331-341
| 4 |
Plano |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-11-25 |
|
| 331-341
| 5 |
Plano |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2024-04-19 |
|
| 331-341
| 6 |
Plano |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-07-29 |
|
| 331-341
| 7 |
Plano |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-08 |
|
| 331-341
| 8 |
Plano |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-08 |
|
| 331-341
| 9 |
Plano |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-03-08 |
|
| 331-342
| A |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-22 |
|
| 331-342
| 0 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-22 |
|
| 331-342
| 1 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-22 |
|
| 331-342
| 5 |
Naperville |
IL |
|
224C ONVOY, LLC |
358 |
|
2026-02-20 |
|
| 331-342
| 8 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-23 |
|
| 331-342
| 9 |
Naperville |
IL |
|
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2026-01-23 |
|
| 331-343
| A |
Downers Grove |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-343
| 0 |
Downers Grove |
IL |
CHCGILCNHMD |
073H TELNYX LLC |
358 |
|
2023-03-21 |
|
| 331-343
| 1 |
Downers Grove |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2023-06-13 |
|
| 331-343
| 2 |
Downers Grove |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-05-14 |
|
| 331-343
| 3 |
Downers Grove |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-03-20 |
|
<< 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 >>
Last updated: Thu, 05 Feb 2026 23:41:55 UTC
Sponsored by: LES.NET
Like this site? We accept donations via PayPal.