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 |
| 831-427
| 1 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 2 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 3 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 4 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 5 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 6 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 7 |
Santa Cruz |
CA |
HYWRCA115MD |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
722 |
|
2009-09-28 |
|
| 831-427
| 8 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-427
| 9 |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-428
| A |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
|
|
| 831-428
| 0 |
Santa Cruz |
CA |
OKLDCAEB0MD |
073H TELNYX LLC |
722 |
|
2022-12-22 |
|
| 831-428
| 1 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2007-09-18 |
|
| 831-428
| 2 |
Santa Cruz |
CA |
SNTDCAUJCM9 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
722 |
|
2005-07-11 |
|
| 831-428
| 3 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2007-09-18 |
|
| 831-428
| 4 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2012-07-27 |
|
| 831-428
| 5 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
|
|
| 831-428
| 6 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2012-07-27 |
|
| 831-428
| 7 |
Santa Cruz |
CA |
SNVACAHZ0MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
722 |
|
2014-04-09 |
|
| 831-428
| 8 |
Santa Cruz |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2013-03-29 |
|
| 831-428
| 9 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
|
|
| 831-429
| A |
Santa Cruz |
CA |
SNCZCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| A |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 0 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 1 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 2 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 3 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 4 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 5 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-430
| 6 |
Santa Cruz |
CA |
SNTDCAUJCM9 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
722 |
|
2005-09-06 |
|
| 831-430
| 7 |
Santa Cruz |
CA |
SNRSCA01KMD |
7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
722 |
|
2019-08-17 |
|
| 831-430
| 8 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2007-01-21 |
|
| 831-430
| 9 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-431
| A |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-431
| 0 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2005-06-10 |
|
| 831-431
| 1 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-431
| 2 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-431
| 3 |
Santa Cruz |
CA |
HYWRCAMCDMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
722 |
|
2005-06-10 |
|
| 831-431
| 4 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-431
| 5 |
Santa Cruz |
CA |
SCVYCA01DS0 |
9740 PACIFIC BELL |
722 |
|
|
|
| 831-431
| 6 |
Santa Cruz |
CA |
OKLDCA03XOY |
318J COMCAST IP PHONE, LLC |
722 |
|
2010-08-18 |
|
| 831-431
| 7 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2006-04-03 |
|
| 831-431
| 8 |
Santa Cruz |
CA |
SNFCCASY5MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
722 |
|
2009-06-23 |
|
| 831-431
| 9 |
Santa Cruz |
CA |
OKLECAZV1MD |
5562 METROPCS, INC. |
722 |
|
2010-09-14 |
|
| 831-432
| A |
Boulder Creek |
CA |
SNJUCACL7MD |
965H FRACTEL, LLC |
722 |
|
|
|
| 831-432
| 0 |
Boulder Creek |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2021-07-30 |
|
| 831-432
| 1 |
Boulder Creek |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2021-07-30 |
|
| 831-432
| 2 |
Boulder Creek |
CA |
SNFCCA21XPZ |
553J WHITESKY COMMUNICATIONS, LLC |
722 |
|
2021-09-16 |
|
| 831-432
| 3 |
Boulder Creek |
CA |
SNFCCAMKDS3 |
649C ONVOY, LLC - CA |
722 |
|
2022-02-05 |
|
| 831-432
| 4 |
Boulder Creek |
CA |
SNFCCA21XNZ |
624H ONVOY SPECTRUM, LLC |
722 |
|
2021-07-23 |
|
| 831-432
| 5 |
Boulder Creek |
CA |
SNFCCA21XNZ |
624H ONVOY SPECTRUM, LLC |
722 |
|
2021-11-07 |
|
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Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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