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 |
| 831-536
| 4 |
Watsonville |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2005-07-31 |
|
| 831-536
| 5 |
Watsonville |
CA |
SNFCCA01XGX |
516C AT&T CORP. |
722 |
|
2007-02-26 |
|
| 831-536
| 6 |
Watsonville |
CA |
SNVACAHZ0MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
722 |
|
2014-04-09 |
|
| 831-536
| 7 |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-05 |
|
| 831-536
| 8 |
Watsonville |
CA |
SNFCCA21XNZ |
624H ONVOY SPECTRUM, LLC |
722 |
|
2024-08-18 |
|
| 831-536
| 9 |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-05 |
|
| 831-537
| A |
Hollister |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
|
|
| 831-537
| 0 |
Hollister |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
|
|
| 831-537
| 1 |
Hollister |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2018-02-23 |
|
| 831-537
| 2 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2024-07-27 |
|
| 831-537
| 3 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2005-11-02 |
|
| 831-537
| 4 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2005-11-02 |
|
| 831-537
| 5 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2005-11-02 |
|
| 831-537
| 6 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2007-08-05 |
|
| 831-537
| 7 |
Hollister |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2006-07-08 |
|
| 831-537
| 8 |
Hollister |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2007-02-09 |
|
| 831-537
| 9 |
Hollister |
CA |
MTRYCAPMDS0 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
736 |
|
2016-01-04 |
|
| 831-539
| A |
Watsonville |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
|
|
| 831-539
| 0 |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2015-07-31 |
|
| 831-539
| 1 |
Watsonville |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
|
|
| 831-539
| 2 |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2007-08-02 |
|
| 831-539
| 3 |
Watsonville |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
|
|
| 831-539
| 4 |
Watsonville |
CA |
|
649C ONVOY, LLC - CA |
722 |
|
2021-07-30 |
|
| 831-539
| 5 |
Watsonville |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2008-09-21 |
|
| 831-539
| 6 |
Watsonville |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
|
|
| 831-539
| 7 |
Watsonville |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2006-04-06 |
|
| 831-539
| 8 |
Watsonville |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2005-07-30 |
|
| 831-539
| 9 |
Watsonville |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
|
|
| 831-540
| A |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
|
|
| 831-540
| 0 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2014-04-04 |
|
| 831-540
| 1 |
Salinas |
CA |
|
515J IP HORIZON LLC |
736 |
|
|
|
| 831-540
| 2 |
Salinas |
CA |
SLNSCA01XKY |
506J TWILIO INTERNATIONAL, INC. |
736 |
|
|
|
| 831-540
| 3 |
Salinas |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2010-01-04 |
|
| 831-540
| 4 |
Salinas |
CA |
|
515J IP HORIZON LLC |
736 |
|
|
|
| 831-540
| 5 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2006-07-07 |
|
| 831-540
| 6 |
Salinas |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2005-11-03 |
|
| 831-540
| 7 |
Salinas |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2006-08-10 |
|
| 831-540
| 8 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2006-07-07 |
|
| 831-540
| 9 |
Salinas |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2006-11-16 |
|
| 831-566
| A |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
|
|
| 831-572
| A |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
|
|
| 831-572
| 0 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2017-12-09 |
|
| 831-572
| 1 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2017-12-09 |
|
| 831-572
| 2 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2017-12-09 |
|
| 831-572
| 3 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2017-12-09 |
|
| 831-572
| 4 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2017-12-09 |
|
| 831-572
| 5 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2017-12-15 |
|
| 831-572
| 6 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
|
|
| 831-572
| 7 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
|
|
| 831-572
| 8 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
|
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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