Local Calling Guide
Area code/prefix search
NPA: 831
[Rate centres in NPA 831]
[Dial plan for NPA 831]
<< 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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 831-512
| 8 |
Salinas |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2006-03-30 |
|
| 831-512
| 9 |
Salinas |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
2010-12-19 |
|
| 831-515
| A |
Santa Cruz |
CA |
SNJSCAYB0MD |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
722 |
|
|
|
| 831-515
| 0 |
Santa Cruz |
CA |
SNJSCAYB0MD |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
722 |
|
|
|
| 831-515
| 1 |
Santa Cruz |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2009-11-09 |
|
| 831-515
| 2 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2013-06-13 |
|
| 831-515
| 3 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2006-09-11 |
|
| 831-515
| 4 |
Santa Cruz |
CA |
|
649C ONVOY, LLC - CA |
722 |
|
2025-09-27 |
|
| 831-515
| 5 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-17 |
|
| 831-515
| 6 |
Santa Cruz |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2011-04-29 |
|
| 831-515
| 7 |
Santa Cruz |
CA |
SNFCCA01XGX |
516C AT&T CORP. |
722 |
|
2006-07-07 |
|
| 831-515
| 8 |
Santa Cruz |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2010-02-26 |
|
| 831-515
| 9 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2013-06-29 |
|
| 831-521
| A |
Monterey |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| A |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| 0 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| 1 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| 2 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| 3 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| 4 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2005-07-11 |
|
| 831-524
| 5 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2003-09-21 |
|
| 831-524
| 6 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
|
|
| 831-524
| 7 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2016-11-10 |
|
| 831-524
| 8 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2014-03-12 |
|
| 831-524
| 9 |
Hollister |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2015-11-25 |
|
| 831-525
| A |
King City |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
|
|
| 831-525
| 0 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2020-08-18 |
|
| 831-525
| 1 |
King City |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2005-11-02 |
|
| 831-525
| 2 |
King City |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2006-08-28 |
|
| 831-525
| 3 |
King City |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2009-06-19 |
|
| 831-525
| 4 |
King City |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
2015-04-27 |
|
| 831-525
| 5 |
King City |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
2010-07-04 |
|
| 831-525
| 6 |
King City |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2012-03-10 |
|
| 831-525
| 7 |
King City |
CA |
MTRYCAPM0MD |
073H TELNYX LLC |
736 |
|
2018-07-03 |
|
| 831-525
| 8 |
King City |
CA |
SLNSCA01X5Y |
516C AT&T CORP. |
736 |
|
2011-09-26 |
|
| 831-525
| 9 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2017-04-27 |
|
| 831-529
| A |
Santa Cruz |
CA |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
|
|
| 831-529
| 0 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2021-03-14 |
|
| 831-529
| 1 |
Santa Cruz |
CA |
SNJUCACLDS1 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
722 |
|
2020-09-09 |
|
| 831-529
| 2 |
Santa Cruz |
CA |
SNFCCA21XNZ |
624H ONVOY SPECTRUM, LLC |
722 |
|
2024-08-18 |
|
| 831-529
| 3 |
Santa Cruz |
CA |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
2020-05-25 |
|
| 831-529
| 4 |
Santa Cruz |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2021-03-11 |
|
| 831-529
| 5 |
Santa Cruz |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2021-03-11 |
|
| 831-529
| 6 |
Santa Cruz |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2021-03-11 |
|
| 831-529
| 7 |
Santa Cruz |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2020-11-20 |
|
| 831-529
| 8 |
Santa Cruz |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2020-07-09 |
|
| 831-529
| 9 |
Santa Cruz |
CA |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
2020-05-25 |
|
| 831-531
| A |
Aptos |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-531
| 0 |
Aptos |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-531
| 1 |
Aptos |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
<< 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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 >>
Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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