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 |
| 331-220
| 1 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-26 |
|
| 331-220
| 2 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-26 |
|
| 331-220
| 3 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-26 |
|
| 331-220
| 4 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-10-08 |
|
| 331-220
| 5 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-10-08 |
|
| 331-220
| 6 |
Aurora |
IL |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2026-09-13 |
|
| 331-220
| 7 |
Aurora |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2026-05-02 |
|
| 331-220
| 8 |
Aurora |
IL |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2026-09-13 |
|
| 331-220
| 9 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2011-08-26 |
|
| 331-221
| A |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 331-221
| 0 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 1 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 2 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 3 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 4 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 5 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 6 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 7 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 8 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-221
| 9 |
Elmhurst |
IL |
EMHRILETDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
2009-03-05 |
|
| 331-222
| A |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 331-222
| 0 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2008-12-29 |
|
| 331-222
| 1 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2008-12-29 |
|
| 331-222
| 2 |
Geneva |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2010-06-05 |
|
| 331-222
| 3 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-06-25 |
|
| 331-222
| 4 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2010-07-16 |
|
| 331-222
| 5 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2010-07-16 |
|
| 331-222
| 6 |
Geneva |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2010-09-10 |
|
| 331-222
| 7 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-10-30 |
|
| 331-222
| 8 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-02-13 |
|
| 331-222
| 9 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2011-07-02 |
|
| 331-223
| A |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 331-223
| 0 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2011-11-09 |
|
| 331-223
| 1 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2010-08-30 |
|
| 331-223
| 2 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-09-02 |
|
| 331-223
| 3 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2011-09-19 |
|
| 331-223
| 4 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2012-05-16 |
|
| 331-223
| 5 |
Geneva |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2010-06-11 |
|
| 331-223
| 6 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2010-07-24 |
|
| 331-223
| 7 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2012-06-11 |
|
| 331-223
| 8 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2012-11-11 |
|
| 331-223
| 9 |
Geneva |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2011-10-27 |
|
| 331-224
| A |
Bensenville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-224
| 0 |
Bensenville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-09-22 |
|
| 331-224
| 1 |
Bensenville |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2024-02-08 |
|
| 331-224
| 2 |
Bensenville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2023-08-07 |
|
| 331-224
| 3 |
Bensenville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-03-07 |
|
| 331-224
| 4 |
Bensenville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-05-03 |
|
| 331-224
| 5 |
Bensenville |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2024-11-10 |
|
| 331-224
| 6 |
Bensenville |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2024-09-27 |
|
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Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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