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 |
| 331-295
| 6 |
Aurora |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2023-11-17 |
|
| 331-295
| 7 |
Aurora |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2023-11-17 |
|
| 331-295
| 8 |
Aurora |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-09-07 |
|
| 331-295
| 9 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2023-09-01 |
|
| 331-296
| A |
Wheaton |
IL |
CHCGILWUXMD |
490J BOOST SUBSCRIBERCO L.L.C. |
358 |
|
|
|
| 331-296
| 0 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-09-22 |
|
| 331-296
| 1 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-08 |
|
| 331-296
| 2 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-06-19 |
|
| 331-296
| 3 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-08 |
|
| 331-296
| 4 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-08 |
|
| 331-296
| 5 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-05-24 |
|
| 331-296
| 6 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-08-06 |
|
| 331-296
| 7 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-08-06 |
|
| 331-296
| 8 |
Wheaton |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-08-06 |
|
| 331-296
| 9 |
Wheaton |
IL |
CHCGILWUXMD |
490J BOOST SUBSCRIBERCO L.L.C. |
358 |
|
2023-06-18 |
|
| 331-297
| A |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-297
| 0 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-01 |
|
| 331-297
| 1 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-01 |
|
| 331-297
| 2 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-10-12 |
|
| 331-297
| 3 |
Geneva |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2024-04-19 |
|
| 331-297
| 8 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-297
| 9 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-04-04 |
|
| 331-298
| A |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-298
| 0 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2023-10-23 |
|
| 331-298
| 1 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2023-10-23 |
|
| 331-298
| 2 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-10-12 |
|
| 331-298
| 3 |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-07-10 |
|
| 331-298
| 4 |
Naperville |
IL |
CHCGILCPXPX |
732J NUSO, LLC |
358 |
|
2024-07-10 |
|
| 331-298
| 5 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-07-10 |
|
| 331-298
| 6 |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-09-28 |
|
| 331-298
| 7 |
Naperville |
IL |
CHCGILCNHMD |
073H TELNYX LLC |
358 |
|
2024-01-12 |
|
| 331-298
| 8 |
Naperville |
IL |
CHCGILIDXDX |
624H ONVOY SPECTRUM, LLC |
358 |
|
2023-12-18 |
|
| 331-298
| 9 |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2023-12-14 |
|
| 331-299
| A |
Hinsdale |
IL |
CHCGILWURMD |
965H FRACTEL, LLC |
358 |
|
|
|
| 331-299
| 0 |
Hinsdale |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2022-09-09 |
|
| 331-299
| 1 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-06-29 |
|
| 331-299
| 2 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-03-05 |
|
| 331-299
| 3 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-03-05 |
|
| 331-299
| 4 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-03-05 |
|
| 331-299
| 5 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-03-05 |
|
| 331-299
| 6 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-03-05 |
|
| 331-299
| 7 |
Hinsdale |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-08-14 |
|
| 331-299
| 8 |
Hinsdale |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-03-05 |
|
| 331-299
| 9 |
Hinsdale |
IL |
CHCGILWURMD |
965H FRACTEL, LLC |
358 |
|
2021-03-04 |
|
| 331-300
| A |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-300
| 0 |
Aurora |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2016-07-10 |
|
| 331-300
| 1 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2016-07-11 |
|
| 331-300
| 2 |
Aurora |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2016-07-21 |
|
| 331-300
| 3 |
Aurora |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2016-08-18 |
|
| 331-300
| 4 |
Aurora |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-08-28 |
|
<< 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 >>
Last updated: Tue, 31 Mar 2026 13:56:49 UTC
Sponsored by: FiberConX Communications Ltd.
Like this site? We accept donations via PayPal.