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 |
| 831-620
| 4 |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-620
| 5 |
Carmel |
CA |
SLNSCA01XEY |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
736 |
|
2013-02-19 |
|
| 831-620
| 6 |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-620
| 7 |
Carmel |
CA |
SLNSCA01XGX |
9262 UTILITY TELECOM GROUP, LLC - CA |
736 |
|
2006-04-25 |
|
| 831-620
| 8 |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-620
| 9 |
Carmel |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2019-09-27 |
|
| 831-621
| A |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 0 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 1 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 2 |
Santa Cruz |
CA |
|
394L COMCAST PHONE OF CALIFORNIA, LLC |
722 |
|
2013-09-03 |
|
| 831-621
| 3 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 4 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 5 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2010-09-11 |
|
| 831-621
| 6 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 7 |
Santa Cruz |
CA |
OKLECAZV1MD |
6529 T-MOBILE USA, INC. |
722 |
|
2021-04-01 |
|
| 831-621
| 8 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-621
| 9 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
|
|
| 831-622
| A |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| A |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| 0 |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| 1 |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| 2 |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| 3 |
San Juan |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2019-09-13 |
|
| 831-623
| 4 |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| 5 |
San Juan |
CA |
SLNSCA01XXX |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
736 |
|
2005-07-31 |
|
| 831-623
| 6 |
San Juan |
CA |
SLNSCA01XGX |
9262 UTILITY TELECOM GROUP, LLC - CA |
736 |
|
2006-06-14 |
|
| 831-623
| 7 |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-623
| 8 |
San Juan |
CA |
MTRYCAPM0MD |
073H TELNYX LLC |
736 |
|
2018-07-03 |
|
| 831-623
| 9 |
San Juan |
CA |
SNJNCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-624
| A |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-625
| A |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-626
| A |
Carmel |
CA |
CRMLCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-627
| A |
San Ardo |
CA |
SNARCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-627
| 1 |
San Ardo |
CA |
SNARCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-627
| 2 |
San Ardo |
CA |
SNARCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-627
| 3 |
San Ardo |
CA |
SNARCA11RS1 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-627
| 4 |
San Ardo |
CA |
SLNSCA01X5Y |
516C AT&T CORP. |
736 |
|
2011-09-26 |
|
| 831-627
| 5 |
San Ardo |
CA |
SLNSCA01XGX |
9262 UTILITY TELECOM GROUP, LLC - CA |
736 |
|
2006-06-14 |
|
| 831-627
| 6 |
San Ardo |
CA |
SLNSCA01X9Y |
649C ONVOY, LLC - CA |
736 |
|
2017-04-27 |
|
| 831-627
| 7 |
San Ardo |
CA |
SLNSCA01X7Y |
508J CENTURYLINK COMMUNICATIONS, LLC |
736 |
|
2015-11-09 |
|
| 831-627
| 8 |
San Ardo |
CA |
SLNSCA01XQY |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
736 |
|
2016-03-20 |
|
| 831-628
| A |
Tres Pinos |
CA |
TRPSCA11RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-628
| 0 |
Tres Pinos |
CA |
|
145J TERRA NOVA TELECOM INC. |
736 |
|
2021-10-02 |
|
| 831-628
| 1 |
Tres Pinos |
CA |
TRPSCA11RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-628
| 3 |
Tres Pinos |
CA |
TRPSCA11RS0 |
9740 PACIFIC BELL |
736 |
|
|
|
| 831-628
| 5 |
Tres Pinos |
CA |
SLNSCA01X5Y |
516C AT&T CORP. |
736 |
|
2011-09-26 |
|
| 831-628
| 7 |
Tres Pinos |
CA |
SLNSCABIXMD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
736 |
|
2021-06-21 |
|
| 831-628
| 8 |
Tres Pinos |
CA |
|
792K CHARTER IP ENABLED SERVICES, LLC |
736 |
|
2016-09-24 |
|
| 831-628
| 9 |
Tres Pinos |
CA |
|
145J TERRA NOVA TELECOM INC. |
736 |
|
2022-11-03 |
|
| 831-630
| A |
Hollister |
CA |
HLSTCA11DS0 |
9740 PACIFIC BELL |
736 |
|
|
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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