Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-337 8 Boulder Creek CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-337 9 Boulder Creek CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-338 A Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 0 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 1 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 2 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 3 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 4 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 6 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 7 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 8 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-338 9 Boulder Creek CA BLCKCA11RS3  9740 PACIFIC BELL 722      
831-345 A Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-346 A Santa Cruz CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-346 0 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-346 1 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-346 2 Santa Cruz CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-346 3 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-346 4 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-346 5 Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-346 6 Santa Cruz CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
831-346 7 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-346 8 Santa Cruz CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-346 9 Santa Cruz CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-348 A Watsonville CA SNJUCACL7MD  965H FRACTEL, LLC 722      
831-348 0 Watsonville CA WTVLCADV0MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 722      
831-348 1 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-348 2 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-348 4 Watsonville CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-348 5 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-348 6 Watsonville CA SNJUCACL7MD  965H FRACTEL, LLC 722      
831-348 7 Watsonville CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-348 8 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-348 9 Watsonville CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-350 A Tres Pinos CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-350 0 Tres Pinos CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-350 1 Tres Pinos CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-350 3 Tres Pinos CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-350 4 Tres Pinos CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-350 5 Tres Pinos CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-350 6 Tres Pinos CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-353 A Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-01-21   
831-353 0 Watsonville CA   515J IP HORIZON LLC 722      
831-353 1 Watsonville CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-353 2 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-353 3 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-353 4 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-353 5 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-353 6 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-353 7 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-353 8 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-353 9 Watsonville CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
831-356 A Salinas CA MTRYCAPM6MD  965H FRACTEL, LLC 736      
831-356 0 Salinas CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736      
831-356 1 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-356 2 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-356 3 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-356 4 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-356 5 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-356 6 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-356 7 Salinas CA MTRYCAPM6MD  965H FRACTEL, LLC 736      
831-356 8 Salinas CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-356 9 Salinas CA MTRYCAPM6MD  965H FRACTEL, LLC 736      
831-359 A Santa Cruz CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-359 0 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 1 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 2 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 3 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 4 Santa Cruz CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-359 5 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 6 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 7 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 8 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-359 9 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-366 A Boulder Creek CA SNJUCACL9MD  516J TON80 COMMUNICATIONS, LLC 722      
831-366 0 Boulder Creek CA   624H ONVOY SPECTRUM, LLC 722      
831-366 3 Boulder Creek CA   145J TERRA NOVA TELECOM INC. 722      
831-366 6 Boulder Creek CA SNJUCACL9MD  516J TON80 COMMUNICATIONS, LLC 722      
831-372 A Monterey CA MTRYCA01DS0  9740 PACIFIC BELL 736      
831-373 A Monterey CA MTRYCA01DS0  9740 PACIFIC BELL 736      
831-375 A Monterey CA MTRYCA01DS0  9740 PACIFIC BELL 736      
831-382 A San Lucas CA SNLCCA11RS1  9740 PACIFIC BELL 736      
831-382 0 San Lucas CA SNLCCA11RS1  9740 PACIFIC BELL 736      
831-382 1 San Lucas CA SNLCCA11RS1  9740 PACIFIC BELL 736      
831-382 2 San Lucas CA SLNSCA01XGX  9262 UTILITY TELECOM GROUP, LLC - CA 736      
831-382 3 San Lucas CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-382 4 San Lucas CA   145J TERRA NOVA TELECOM INC. 736      
831-382 6 San Lucas CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-382 7 San Lucas CA SLNSCA01X7Y  508J CENTURYLINK COMMUNICATIONS, LLC 736      
831-382 9 San Lucas CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-383 A Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 0 Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 1 Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 2 Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 3 Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 4 Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 5 Monterey CA SLNSCA01XGX  9262 UTILITY TELECOM GROUP, LLC - CA 736      
831-383 6 Monterey CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-383 7 Monterey CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-383 8 Monterey CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      

<< 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 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.