Local Calling Guide
Area code/prefix search
Concord, CA
<< 1 2 3 4 5 6 7 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 925-515
| 9 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2021-06-14 |
|
| 925-521
| A |
CNCRCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 0 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 1 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 2 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 3 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 4 |
|
5562 METROPCS, INC. |
722 |
|
2006-03-10 |
|
| 925-521
| 5 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 6 |
|
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2010-09-14 |
|
| 925-521
| 7 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-521
| 8 |
|
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2008-08-14 |
|
| 925-521
| 9 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-536
| A |
SNJUCACL3MD |
073H TELNYX LLC |
722 |
|
|
|
| 925-536
| 0 |
|
073H TELNYX LLC |
722 |
|
2017-05-01 |
|
| 925-536
| 1 |
|
649C ONVOY, LLC - CA |
722 |
|
2017-06-18 |
|
| 925-536
| 2 |
|
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2017-06-17 |
|
| 925-536
| 3 |
|
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2017-05-02 |
|
| 925-536
| 4 |
|
649C ONVOY, LLC - CA |
722 |
|
2018-01-20 |
|
| 925-536
| 5 |
|
5562 METROPCS, INC. |
722 |
|
2018-04-17 |
|
| 925-536
| 6 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2017-10-16 |
|
| 925-536
| 7 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2017-11-20 |
|
| 925-536
| 8 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2017-12-27 |
|
| 925-536
| 9 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2017-07-06 |
|
| 925-566
| A |
SNRSCA01KMD |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
|
|
| 925-566
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2004-09-15 |
|
| 925-566
| 1 |
|
515J IP HORIZON LLC |
722 |
|
2002-10-12 |
|
| 925-566
| 2 |
|
515J IP HORIZON LLC |
722 |
|
2002-10-12 |
|
| 925-566
| 3 |
|
649C ONVOY, LLC - CA |
722 |
|
2007-09-07 |
|
| 925-566
| 4 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
722 |
|
2010-12-09 |
|
| 925-566
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-09-22 |
|
| 925-566
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-09-22 |
|
| 925-566
| 7 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-09-22 |
|
| 925-566
| 8 |
|
485E ASTOUND BROADBAND, LLC - CA |
722 |
|
2009-07-13 |
|
| 925-566
| 9 |
|
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
|
|
| 925-586
| A |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
|
|
| 925-595
| A |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 0 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 1 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 2 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 3 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 4 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 5 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 6 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 7 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 8 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-595
| 9 |
|
5562 METROPCS, INC. |
722 |
|
|
|
| 925-602
| A |
CNCRCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| A |
CNCRCA01DS1 |
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 0 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 1 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 2 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 3 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2010-03-04 |
|
| 925-603
| 4 |
|
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
722 |
|
2019-05-26 |
|
| 925-603
| 5 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 6 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 7 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 8 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-603
| 9 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| A |
CNCRCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 0 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 1 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 2 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 3 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 4 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2010-03-04 |
|
| 925-609
| 5 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 6 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 7 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 8 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-609
| 9 |
|
9740 PACIFIC BELL |
722 |
|
|
|
| 925-633
| A |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
|
|
| 925-633
| 0 |
|
939H COMMIO, LLC |
722 |
|
2021-10-14 |
|
| 925-633
| 1 |
|
939H COMMIO, LLC |
722 |
|
2021-10-14 |
|
| 925-633
| 2 |
|
939H COMMIO, LLC |
722 |
|
2021-10-14 |
|
| 925-633
| 3 |
|
965H FRACTEL, LLC |
722 |
|
2021-10-07 |
|
| 925-633
| 4 |
|
649C ONVOY, LLC - CA |
722 |
|
2021-10-08 |
|
| 925-633
| 5 |
|
649C ONVOY, LLC - CA |
722 |
|
2021-10-08 |
|
| 925-633
| 6 |
|
649C ONVOY, LLC - CA |
722 |
|
2021-10-08 |
|
| 925-633
| 7 |
|
649C ONVOY, LLC - CA |
722 |
|
2021-10-08 |
|
| 925-633
| 8 |
|
939H COMMIO, LLC |
722 |
|
2021-10-14 |
|
| 925-633
| 9 |
|
939H COMMIO, LLC |
722 |
|
2021-10-14 |
|
| 925-644
| A |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
|
|
| 925-644
| 0 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 1 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 2 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 3 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 4 |
|
965H FRACTEL, LLC |
722 |
|
2021-09-12 |
|
| 925-644
| 5 |
|
649C ONVOY, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 6 |
|
649C ONVOY, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 7 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2021-09-13 |
|
| 925-644
| 8 |
|
073H TELNYX LLC |
722 |
|
2021-11-07 |
|
| 925-644
| 9 |
|
553J WHITESKY COMMUNICATIONS, LLC |
722 |
|
2021-09-16 |
|
| 925-646
| A |
CNCRCA01RS1 |
9740 PACIFIC BELL |
722 |
|
|
|
| 925-655
| A |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
|
|
| 925-655
| 0 |
|
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2019-05-30 |
|
| 925-655
| 1 |
|
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2019-05-30 |
|
| 925-655
| 2 |
|
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2019-05-30 |
|
| 925-655
| 3 |
|
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2019-05-30 |
|
| 925-655
| 4 |
|
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2019-05-30 |
|
| 925-655
| 5 |
|
965H FRACTEL, LLC |
722 |
|
2019-05-14 |
|
| 925-655
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2019-05-27 |
|
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Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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