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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 331-305
| 6 |
Naperville |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2014-01-19 |
|
| 331-305
| 7 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2014-09-04 |
|
| 331-305
| 8 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2014-09-04 |
|
| 331-305
| 9 |
Naperville |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2014-09-19 |
|
| 331-307
| A |
Lombard |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
|
|
| 331-307
| 0 |
Lombard |
IL |
CHCGILDTDS6 |
816C INTRADO COMMUNICATIONS, LLC |
358 |
|
2015-08-29 |
|
| 331-307
| 1 |
Lombard |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-02-15 |
|
| 331-307
| 2 |
Lombard |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-02-15 |
|
| 331-307
| 3 |
Lombard |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-03-02 |
|
| 331-307
| 4 |
Lombard |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-05-01 |
|
| 331-307
| 5 |
Lombard |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-05-01 |
|
| 331-307
| 6 |
Lombard |
IL |
CHCGIL241MD |
057H LOCAL ACCESS LLC - IL |
358 |
|
2016-08-09 |
|
| 331-307
| 7 |
Lombard |
IL |
CHCGILNEXJX |
318J COMCAST IP PHONE LLC |
358 |
|
2015-08-20 |
|
| 331-307
| 8 |
Lombard |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-12-08 |
|
| 331-307
| 9 |
Lombard |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2014-12-08 |
|
| 331-308
| A |
Bartlett |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 331-308
| 0 |
Bartlett |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-02-21 |
|
| 331-308
| 1 |
Bartlett |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-02-21 |
|
| 331-308
| 2 |
Bartlett |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-02-21 |
|
| 331-308
| 3 |
Bartlett |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-03-16 |
|
| 331-308
| 4 |
Bartlett |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-03-16 |
|
| 331-308
| 5 |
Bartlett |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-03-16 |
|
| 331-308
| 6 |
Bartlett |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2015-03-16 |
|
| 331-308
| 7 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-02-29 |
|
| 331-308
| 8 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-02-29 |
|
| 331-308
| 9 |
Bartlett |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-03-14 |
|
| 331-310
| A |
Big Rock |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 331-310
| 0 |
Big Rock |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2015-02-26 |
|
| 331-310
| 1 |
Big Rock |
IL |
CHCGILWUDS4 |
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
358 |
|
2015-06-21 |
|
| 331-310
| 2 |
Big Rock |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-04-23 |
|
| 331-310
| 3 |
Big Rock |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-04-23 |
|
| 331-310
| 4 |
Big Rock |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2020-09-06 |
|
| 331-310
| 5 |
Big Rock |
IL |
CHCGIL24XMD |
495J STRATUS NETWORKS |
358 |
|
2020-12-13 |
|
| 331-310
| 6 |
Big Rock |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2021-02-12 |
|
| 331-310
| 7 |
Big Rock |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-03-14 |
|
| 331-310
| 8 |
Big Rock |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2016-03-14 |
|
| 331-310
| 9 |
Big Rock |
IL |
CHCGILWUJMD |
073H TELNYX LLC |
358 |
|
2017-05-08 |
|
| 331-315
| A |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
|
|
| 331-315
| 0 |
Lombard |
IL |
CHCGILWUJMD |
073H TELNYX LLC |
358 |
|
2017-04-24 |
|
| 331-315
| 1 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-10-09 |
|
| 331-315
| 2 |
Lombard |
IL |
CHCGILCPDS9 |
138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL |
358 |
|
2016-11-13 |
|
| 331-315
| 3 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-10-09 |
|
| 331-315
| 4 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-07-29 |
|
| 331-315
| 5 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2017-01-05 |
|
| 331-315
| 6 |
Lombard |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 7 |
Lombard |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 8 |
Lombard |
IL |
CHCGILMF2MD |
6529 T-MOBILE USA, INC. |
358 |
|
2016-12-24 |
|
| 331-315
| 9 |
Lombard |
IL |
BURGILAHGT3 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2016-09-22 |
|
| 331-318
| A |
Lemont |
IL |
CHCGIL241MD |
057H LOCAL ACCESS LLC - IL |
358 |
|
|
|
| 331-318
| 0 |
Lemont |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2014-02-16 |
|
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Last updated: Wed, 01 Jun 2022 03:09:23 UTC
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