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 |
| 831-531
| 2 |
Aptos |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2005-05-16 |
|
| 831-531
| 3 |
Aptos |
CA |
SNJUCACLDS1 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
722 |
|
2013-03-29 |
|
| 831-531
| 4 |
Aptos |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2004-01-13 |
|
| 831-531
| 5 |
Aptos |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2015-12-30 |
|
| 831-531
| 6 |
Aptos |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2015-12-30 |
|
| 831-531
| 7 |
Aptos |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2010-02-26 |
|
| 831-531
| 8 |
Aptos |
CA |
SNFCCA21XUY |
981E BANDWIDTH.COM CLEC, LLC - CA |
722 |
|
2010-08-28 |
|
| 831-531
| 9 |
Aptos |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2016-01-06 |
|
| 831-532
| A |
Ben Lomond |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
|
|
| 831-532
| 0 |
Ben Lomond |
CA |
SNJUCACLDS1 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
722 |
|
2020-01-16 |
|
| 831-532
| 3 |
Ben Lomond |
CA |
SNJUCACLDS1 |
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
722 |
|
2018-11-16 |
|
| 831-532
| 4 |
Ben Lomond |
CA |
SNJUCACL8MD |
145J TERRA NOVA TELECOM INC. |
722 |
|
2024-10-14 |
|
| 831-532
| 5 |
Ben Lomond |
CA |
SNFCCA01XGX |
516C AT&T CORP. |
722 |
|
2011-09-26 |
|
| 831-532
| 6 |
Ben Lomond |
CA |
SNJUCACL3MD |
073H TELNYX LLC |
722 |
|
2017-07-20 |
|
| 831-532
| 8 |
Ben Lomond |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2005-06-13 |
|
| 831-532
| 9 |
Ben Lomond |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2005-06-13 |
|
| 831-533
| A |
Boulder Creek |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-533
| 0 |
Boulder Creek |
CA |
|
515J IP HORIZON LLC |
722 |
|
2016-09-15 |
|
| 831-533
| 1 |
Boulder Creek |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-533
| 2 |
Boulder Creek |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2004-09-24 |
|
| 831-533
| 3 |
Boulder Creek |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2019-07-28 |
|
| 831-533
| 4 |
Boulder Creek |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-01 |
|
| 831-533
| 5 |
Boulder Creek |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-01 |
|
| 831-533
| 9 |
Boulder Creek |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2005-06-13 |
|
| 831-534
| A |
Felton |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-534
| 0 |
Felton |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2016-02-24 |
|
| 831-534
| 1 |
Felton |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-534
| 2 |
Felton |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-01 |
|
| 831-534
| 3 |
Felton |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2016-02-24 |
|
| 831-534
| 4 |
Felton |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-01-04 |
|
| 831-534
| 5 |
Felton |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-01-04 |
|
| 831-534
| 7 |
Felton |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-13 |
|
| 831-534
| 8 |
Felton |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2005-06-13 |
|
| 831-534
| 9 |
Felton |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2015-08-31 |
|
| 831-535
| A |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-535
| 0 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-535
| 1 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-535
| 2 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2005-09-04 |
|
| 831-535
| 3 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2005-09-04 |
|
| 831-535
| 4 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-17 |
|
| 831-535
| 5 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2005-06-17 |
|
| 831-535
| 6 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2007-03-02 |
|
| 831-535
| 7 |
Santa Cruz |
CA |
SNRTCAHFDS0 |
433E SONIC TELECOM, LLC - CA |
722 |
|
2012-12-16 |
|
| 831-535
| 8 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2005-09-04 |
|
| 831-535
| 9 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2005-09-04 |
|
| 831-536
| A |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-536
| 0 |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2004-09-15 |
|
| 831-536
| 1 |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
|
|
| 831-536
| 2 |
Watsonville |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2004-09-24 |
|
| 831-536
| 3 |
Watsonville |
CA |
SNRTCAHFDS0 |
433E SONIC TELECOM, LLC - CA |
722 |
|
2012-12-22 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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