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 |
| 831-661
| 2 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
|
|
| 831-661
| 3 |
Aptos |
CA |
SNFCCAMKX1X |
9262 UTILITY TELECOM GROUP, LLC - CA |
722 |
|
|
|
| 831-661
| 4 |
Aptos |
CA |
APTSCA12DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-661
| 5 |
Aptos |
CA |
|
394L COMCAST PHONE OF CALIFORNIA, LLC |
722 |
|
2009-03-19 |
|
| 831-661
| 6 |
Aptos |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2011-01-26 |
|
| 831-661
| 7 |
Aptos |
CA |
APTSCA12DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-661
| 8 |
Aptos |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2013-05-28 |
|
| 831-661
| 9 |
Aptos |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2015-04-30 |
|
| 831-662
| A |
Aptos |
CA |
APTSCA12DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-663
| A |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 0 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 1 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 2 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 3 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 4 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 5 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 6 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 7 |
Salinas |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2007-08-12 |
|
| 831-663
| 8 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-663
| 9 |
Salinas |
CA |
SLNSCA14RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-664
| A |
Hollister |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
|
|
| 831-664
| 0 |
Hollister |
CA |
MTRYCA012MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
736 |
|
|
|
| 831-664
| 1 |
Hollister |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
|
|
| 831-664
| 2 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2024-07-27 |
|
| 831-664
| 3 |
Hollister |
CA |
SLNTCAPS5MD |
732J NUSO, LLC |
736 |
|
2024-12-16 |
|
| 831-664
| 4 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2023-12-14 |
|
| 831-664
| 5 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2023-12-14 |
|
| 831-664
| 6 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2008-05-01 |
|
| 831-664
| 7 |
Hollister |
CA |
SLNSCA01X7Y |
508J CENTURYLINK COMMUNICATIONS, LLC |
736 |
|
2015-11-09 |
|
| 831-664
| 8 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2008-12-21 |
|
| 831-664
| 9 |
Hollister |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2008-05-16 |
|
| 831-665
| A |
Hollister |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
|
|
| 831-665
| 0 |
Hollister |
CA |
MTRYCAPM5MD |
145J TERRA NOVA TELECOM INC. |
736 |
|
2024-02-12 |
|
| 831-665
| 1 |
Hollister |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2017-05-11 |
|
| 831-665
| 2 |
Hollister |
CA |
SLNSCA01X8Y |
5562 METROPCS, INC. |
736 |
|
2017-12-24 |
|
| 831-665
| 3 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2020-12-18 |
|
| 831-665
| 4 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2024-08-25 |
|
| 831-665
| 5 |
Hollister |
CA |
|
145J TERRA NOVA TELECOM INC. |
736 |
|
2023-06-24 |
|
| 831-665
| 6 |
Hollister |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2012-01-08 |
|
| 831-665
| 8 |
Hollister |
CA |
|
145J TERRA NOVA TELECOM INC. |
736 |
|
2026-03-13 |
|
| 831-665
| 9 |
Hollister |
CA |
SLNSCA01X8Y |
6529 T-MOBILE USA, INC. |
736 |
|
2021-11-25 |
|
| 831-666
| A |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
|
|
| 831-666
| 0 |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2017-06-12 |
|
| 831-666
| 1 |
Watsonville |
CA |
SNJUCACL3MD |
073H TELNYX LLC |
722 |
|
2017-06-05 |
|
| 831-666
| 2 |
Watsonville |
CA |
SNTDCAUJCM9 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
722 |
|
2017-09-09 |
|
| 831-666
| 3 |
Watsonville |
CA |
SNFCCA21XNZ |
624H ONVOY SPECTRUM, LLC |
722 |
|
2021-07-23 |
|
| 831-666
| 4 |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2021-07-30 |
|
| 831-666
| 5 |
Watsonville |
CA |
SNTDCAUJCM9 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
722 |
|
2021-04-01 |
|
| 831-666
| 6 |
Watsonville |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2017-05-13 |
|
| 831-666
| 7 |
Watsonville |
CA |
SNTDCAUJCM9 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
722 |
|
2018-08-09 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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