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 |
| 331-271
| 9 |
Hinsdale |
IL |
CHCGILWBXSZ |
478J NUSO, LLC |
358 |
|
2020-12-20 |
|
| 331-272
| A |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-272
| 0 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2021-09-17 |
|
| 331-272
| 1 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2021-09-17 |
|
| 331-272
| 2 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-09-16 |
|
| 331-272
| 3 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-09-16 |
|
| 331-272
| 4 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-09-16 |
|
| 331-272
| 5 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-09-16 |
|
| 331-272
| 6 |
Geneva |
IL |
CHCGILWUTMD |
516J TON80 COMMUNICATIONS, LLC |
358 |
|
2022-03-17 |
|
| 331-272
| 7 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2022-06-06 |
|
| 331-272
| 8 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2021-12-16 |
|
| 331-272
| 9 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2021-12-16 |
|
| 331-273
| A |
Lemont |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
|
|
| 331-273
| 0 |
Lemont |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 331-273
| 1 |
Lemont |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 331-273
| 2 |
Lemont |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 331-273
| 3 |
Lemont |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-08-08 |
|
| 331-273
| 4 |
Lemont |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-11-19 |
|
| 331-273
| 5 |
Lemont |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-11-19 |
|
| 331-273
| 6 |
Lemont |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-11-19 |
|
| 331-273
| 7 |
Lemont |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 331-273
| 8 |
Lemont |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-10-14 |
|
| 331-273
| 9 |
Lemont |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2021-10-01 |
|
| 331-274
| A |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-274
| 0 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2021-09-19 |
|
| 331-274
| 1 |
Aurora |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2021-09-19 |
|
| 331-274
| 2 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 3 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 4 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 5 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 6 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 7 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 8 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-274
| 9 |
Aurora |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-275
| A |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-275
| 6 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-275
| 7 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-275
| 8 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-275
| 9 |
Bartlett |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2021-09-17 |
|
| 331-276
| A |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
|
|
| 331-276
| 0 |
Geneva |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2015-01-09 |
|
| 331-276
| 1 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-04-14 |
|
| 331-276
| 2 |
Geneva |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-05-17 |
|
| 331-276
| 3 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-02-09 |
|
| 331-276
| 4 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-02-09 |
|
| 331-276
| 5 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-17 |
|
| 331-276
| 6 |
Geneva |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2015-01-17 |
|
| 331-276
| 7 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-01-12 |
|
| 331-276
| 8 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-01-12 |
|
| 331-276
| 9 |
Geneva |
IL |
WCHCILBFGT0 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2015-01-12 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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