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 |
| 831-731
| 0 |
Castroville |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2010-09-16 |
|
| 831-731
| 1 |
Castroville |
CA |
|
515J IP HORIZON LLC |
736 |
|
|
|
| 831-731
| 2 |
Castroville |
CA |
|
515J IP HORIZON LLC |
736 |
|
|
|
| 831-731
| 3 |
Castroville |
CA |
MTRYCAPM0MD |
073H TELNYX LLC |
736 |
|
2018-07-03 |
|
| 831-731
| 4 |
Castroville |
CA |
|
515J IP HORIZON LLC |
736 |
|
2022-10-20 |
|
| 831-731
| 5 |
Castroville |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2005-07-26 |
|
| 831-731
| 6 |
Castroville |
CA |
SLNSCA01X1Y |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
736 |
|
2008-05-12 |
|
| 831-731
| 7 |
Castroville |
CA |
|
515J IP HORIZON LLC |
736 |
|
2022-10-20 |
|
| 831-731
| 8 |
Castroville |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-11-14 |
|
| 831-731
| 9 |
Castroville |
CA |
|
515J IP HORIZON LLC |
736 |
|
2022-10-20 |
|
| 831-732
| A |
San Ardo |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
|
|
| 831-732
| 0 |
San Ardo |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
|
|
| 831-732
| 1 |
San Ardo |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-07-30 |
|
| 831-732
| 3 |
San Ardo |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2019-07-28 |
|
| 831-732
| 4 |
San Ardo |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2014-04-12 |
|
| 831-732
| 5 |
San Ardo |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2010-11-28 |
|
| 831-732
| 7 |
San Ardo |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2019-09-13 |
|
| 831-732
| 8 |
San Ardo |
CA |
SLNSCA01XCY |
624H ONVOY SPECTRUM, LLC |
736 |
|
2024-01-05 |
|
| 831-732
| 9 |
San Ardo |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2024-07-22 |
|
| 831-737
| A |
Salinas |
CA |
SLNSCA01XQY |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
736 |
|
|
|
| 831-737
| 0 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2007-09-16 |
|
| 831-737
| 1 |
Salinas |
CA |
SLNSCA01XQY |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
736 |
|
2006-05-19 |
|
| 831-737
| 2 |
Salinas |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2007-09-19 |
|
| 831-737
| 3 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2006-10-06 |
|
| 831-737
| 4 |
Salinas |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2007-09-19 |
|
| 831-737
| 5 |
Salinas |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2007-09-19 |
|
| 831-737
| 6 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2014-04-14 |
|
| 831-737
| 7 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2006-11-06 |
|
| 831-737
| 8 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2006-12-06 |
|
| 831-737
| 9 |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2007-10-16 |
|
| 831-740
| A |
Watsonville |
CA |
SNFCCAFJDS0 |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
|
|
| 831-740
| 0 |
Watsonville |
CA |
SNFCCAFJDS0 |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2015-04-24 |
|
| 831-740
| 1 |
Watsonville |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2006-03-04 |
|
| 831-740
| 2 |
Watsonville |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2008-12-22 |
|
| 831-740
| 3 |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2006-01-08 |
|
| 831-740
| 4 |
Watsonville |
CA |
SNFCCAFJDS0 |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
|
|
| 831-740
| 5 |
Watsonville |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
2006-06-14 |
|
| 831-740
| 6 |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2007-11-26 |
|
| 831-740
| 7 |
Watsonville |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2008-06-29 |
|
| 831-740
| 8 |
Watsonville |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2008-05-19 |
|
| 831-740
| 9 |
Watsonville |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2009-04-09 |
|
| 831-741
| A |
Castroville |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
|
|
| 831-741
| 1 |
Castroville |
CA |
MTRYCAPMDS0 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
736 |
|
2016-03-05 |
|
| 831-741
| 2 |
Castroville |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2019-07-26 |
|
| 831-741
| 3 |
Castroville |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2019-07-26 |
|
| 831-741
| 4 |
Castroville |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2012-01-08 |
|
| 831-741
| 5 |
Castroville |
CA |
SLNSCA01XCY |
624H ONVOY SPECTRUM, LLC |
736 |
|
2024-01-05 |
|
| 831-741
| 6 |
Castroville |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2008-03-15 |
|
| 831-741
| 7 |
Castroville |
CA |
SLNSCA01X7Y |
508J CENTURYLINK COMMUNICATIONS, LLC |
736 |
|
2015-11-09 |
|
| 831-741
| 8 |
Castroville |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2021-06-06 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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