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
831-307 0 Castroville CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-307 2 Castroville CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-308 A Carmel Valley CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-308 0 Carmel Valley CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-308 1 Carmel Valley CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-308 2 Carmel Valley CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-308 3 Carmel Valley CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-308 4 Carmel Valley CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-308 5 Carmel Valley CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-308 6 Carmel Valley CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-308 7 Carmel Valley CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-308 8 Carmel Valley CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-308 9 Carmel Valley CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736      
831-309 A Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 0 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 1 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 2 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 3 Carmel CA MTRYCAPM1MD  939H COMMIO, LLC 736      
831-309 4 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 7 Carmel CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736      
831-309 8 Carmel CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736      
831-309 9 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-312 A Monterey CA   388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 736   2024-05-26   
831-312 0 Monterey CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-312 1 Monterey CA   649C ONVOY, LLC - CA 736      
831-312 2 Monterey CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-312 3 Monterey CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-312 4 Monterey CA   649C ONVOY, LLC - CA 736      
831-312 5 Monterey CA   388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 736      
831-312 6 Monterey CA   6529 T-MOBILE USA, INC. 736      
831-312 7 Monterey CA   6529 T-MOBILE USA, INC. 736      
831-312 8 Monterey CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-312 9 Monterey CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-313 A Hollister CA SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736      
831-313 0 Hollister CA SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736      
831-313 1 Hollister CA SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736      
831-313 2 Hollister CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-313 3 Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-313 4 Hollister CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-313 5 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-313 6 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-313 7 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-313 8 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-313 9 Hollister CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-314 A Santa Cruz CA   0051 SHELCOMM 722   2024-11-03   
831-315 A Soledad CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-315 0 Soledad CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-315 1 Soledad CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-315 2 Soledad CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-315 3 Soledad CA SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736      
831-315 4 Soledad CA MTRYCAPM0MD  073H TELNYX LLC 736      
831-315 5 Soledad CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-315 6 Soledad CA SLNSCA01X1Y  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 736      
831-315 7 Soledad CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-315 8 Soledad CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-315 9 Soledad CA SLNSCABIXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 736      
831-316 A Santa Cruz CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-316 0 Santa Cruz CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-316 1 Santa Cruz CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-316 2 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-316 3 Santa Cruz CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-316 4 Santa Cruz CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-316 5 Santa Cruz CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-316 6 Santa Cruz CA OKLECAZVGT0  5562 METROPCS, INC. 722      
831-316 7 Santa Cruz CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
831-316 8 Santa Cruz CA OKLECAZVGT0  5562 METROPCS, INC. 722      
831-316 9 Santa Cruz CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-317 A Monterey CA   616J LEAP TELECOM, LLC 736   2024-11-22   
831-317 0 Monterey CA   616J LEAP TELECOM, LLC 736      
831-317 1 Monterey CA   624H ONVOY SPECTRUM, LLC 736      
831-317 7 Monterey CA   624H ONVOY SPECTRUM, LLC 736      
831-317 8 Monterey CA   624H ONVOY SPECTRUM, LLC 736      
831-317 9 Monterey CA   624H ONVOY SPECTRUM, LLC 736      
831-318 A Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 0 Aptos CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-318 1 Aptos CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
831-318 2 Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 3 Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 4 Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 5 Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 6 Aptos CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
831-318 7 Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 8 Aptos CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-318 9 Aptos CA   515J IP HORIZON LLC 722      
831-319 A Watsonville CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-319 0 Watsonville CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-319 1 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-319 2 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-319 3 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-319 4 Watsonville CA WTVLCADV0MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 722      
831-319 5 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-319 6 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-319 7 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-319 8 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-319 9 Watsonville CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
831-320 A Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-322 A Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-01-21   
831-322 0 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-322 1 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-322 2 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

<< 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: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.