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 |
| 331-330
| 8 |
Naperville |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-06-25 |
|
| 331-330
| 9 |
Naperville |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-10-03 |
|
| 331-331
| A |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 0 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 1 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 2 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 3 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 4 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 5 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 6 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 7 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 8 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-331
| 9 |
Aurora |
IL |
|
224C ONVOY, LLC |
358 |
|
2025-10-17 |
|
| 331-332
| A |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 331-332
| 0 |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2011-11-09 |
|
| 331-332
| 1 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 2 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 3 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 4 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 5 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 6 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 7 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 8 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-332
| 9 |
Naperville |
IL |
NPVLILNADS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2010-01-16 |
|
| 331-333
| A |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 331-333
| 0 |
Naperville |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2009-01-05 |
|
| 331-333
| 1 |
Naperville |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-07-16 |
|
| 331-333
| 2 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2010-06-10 |
|
| 331-333
| 3 |
Naperville |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-07-16 |
|
| 331-333
| 4 |
Naperville |
IL |
EGVGILIFDS1 |
7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
358 |
|
2010-03-04 |
|
| 331-333
| 5 |
Naperville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2009-07-30 |
|
| 331-333
| 6 |
Naperville |
IL |
CHCGILWUSMD |
145J TERRA NOVA TELECOM INC. |
358 |
|
2025-01-08 |
|
| 331-333
| 7 |
Naperville |
IL |
EGVGILIFDS1 |
7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL |
358 |
|
2009-07-28 |
|
| 331-333
| 8 |
Naperville |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-10-30 |
|
| 331-333
| 9 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2010-10-31 |
|
| 331-334
| A |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-334
| 0 |
Geneva |
IL |
CHCGILTCDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2021-08-02 |
|
| 331-334
| 1 |
Geneva |
IL |
CHCGILCNHMD |
073H TELNYX LLC |
358 |
|
2022-09-04 |
|
| 331-334
| 2 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2022-11-26 |
|
| 331-334
| 3 |
Geneva |
IL |
CHCGILWUSMD |
145J TERRA NOVA TELECOM INC. |
358 |
|
2024-02-14 |
|
| 331-334
| 4 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-02 |
|
| 331-334
| 5 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-02 |
|
| 331-334
| 6 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-02 |
|
| 331-334
| 7 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-02 |
|
| 331-334
| 8 |
Geneva |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE, LLC |
358 |
|
2023-03-18 |
|
| 331-334
| 9 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-07-22 |
|
| 331-335
| A |
Geneva |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-07-04 |
|
| 331-335
| 0 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-08-20 |
|
| 331-335
| 1 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2024-08-20 |
|
| 331-335
| 2 |
Geneva |
IL |
BFGVILASG00 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2024-11-17 |
|
<< 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: Callcentric - VoIP Internet phone service
Like this site? We accept donations via PayPal.