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 |
| 831-809
| A |
Salinas |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
|
|
| 831-818
| A |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
|
|
| 831-821
| A |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
|
|
| 831-821
| 0 |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
|
|
| 831-821
| 1 |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2011-02-06 |
|
| 831-821
| 2 |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2012-08-30 |
|
| 831-821
| 3 |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2014-06-27 |
|
| 831-821
| 4 |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2015-04-04 |
|
| 831-821
| 5 |
Tres Pinos |
CA |
MTRYCAPM0MD |
073H TELNYX LLC |
736 |
|
2018-07-03 |
|
| 831-821
| 6 |
Tres Pinos |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2017-05-13 |
|
| 831-821
| 7 |
Tres Pinos |
CA |
MTRYCAPM5MD |
145J TERRA NOVA TELECOM INC. |
736 |
|
2024-02-12 |
|
| 831-821
| 9 |
Tres Pinos |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
|
|
| 831-824
| A |
Santa Cruz |
CA |
SNFCCAFJDS0 |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
|
|
| 831-824
| 0 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2012-03-05 |
|
| 831-824
| 1 |
Santa Cruz |
CA |
SNJUCACLDS1 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
722 |
|
2012-10-25 |
|
| 831-824
| 2 |
Santa Cruz |
CA |
|
829J PAETEC ITEL, LLC |
722 |
|
2011-09-14 |
|
| 831-824
| 3 |
Santa Cruz |
CA |
SNJSCA02DS4 |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2009-12-10 |
|
| 831-824
| 4 |
Santa Cruz |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2009-01-15 |
|
| 831-824
| 5 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2006-07-21 |
|
| 831-824
| 6 |
Santa Cruz |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2011-08-20 |
|
| 831-824
| 7 |
Santa Cruz |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2010-10-29 |
|
| 831-824
| 8 |
Santa Cruz |
CA |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2025-09-10 |
|
| 831-824
| 9 |
Santa Cruz |
CA |
SNFCCAFJDS0 |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
|
|
| 831-830
| A |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
|
|
| 831-830
| 0 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-03-05 |
|
| 831-830
| 1 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-03-05 |
|
| 831-830
| 2 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-03-05 |
|
| 831-830
| 3 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-03-05 |
|
| 831-830
| 4 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-07-30 |
|
| 831-830
| 5 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2021-07-30 |
|
| 831-830
| 6 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2023-10-29 |
|
| 831-830
| 7 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2022-12-19 |
|
| 831-830
| 8 |
King City |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2020-09-22 |
|
| 831-830
| 9 |
King City |
CA |
MTRYCAPMDS0 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
736 |
|
2021-03-21 |
|
| 831-833
| A |
Hollister |
CA |
SLNTCAPS0MD |
939H COMMIO, LLC |
736 |
|
|
|
| 831-833
| 0 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2023-07-24 |
|
| 831-833
| 1 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2024-04-02 |
|
| 831-833
| 2 |
Hollister |
CA |
MTRYCAPMAMD |
490J BOOST SUBSCRIBERCO L.L.C. |
736 |
|
2023-12-10 |
|
| 831-833
| 3 |
Hollister |
CA |
SLNTCAPS0MD |
939H COMMIO, LLC |
736 |
|
2022-04-25 |
|
| 831-833
| 4 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2023-10-29 |
|
| 831-833
| 5 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2023-08-11 |
|
| 831-833
| 6 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2023-06-05 |
|
| 831-833
| 7 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2022-10-15 |
|
| 831-833
| 8 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2022-10-15 |
|
| 831-833
| 9 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2022-10-16 |
|
| 831-837
| A |
Salinas |
CA |
MTRYCAPM7MD |
516J TON80 COMMUNICATIONS, LLC |
736 |
|
|
|
| 831-837
| 0 |
Salinas |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
2022-08-25 |
|
| 831-837
| 1 |
Salinas |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
2022-08-25 |
|
| 831-837
| 2 |
Salinas |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2022-03-12 |
|
| 831-837
| 3 |
Salinas |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
2022-08-25 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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