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
831-533 A Boulder Creek CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-533 0 Boulder Creek CA   515J IP HORIZON LLC 722      
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      
831-533 3 Boulder Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-533 4 Boulder Creek CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-533 5 Boulder Creek CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-533 9 Boulder Creek CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-534 A Felton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-534 0 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
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      
831-534 3 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-534 4 Felton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-534 5 Felton CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-534 7 Felton CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-534 8 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-534 9 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
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      
831-535 3 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-535 4 Santa Cruz CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-535 5 Santa Cruz CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-535 6 Santa Cruz CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-535 7 Santa Cruz CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
831-535 8 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-535 9 Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
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      
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      
831-536 3 Watsonville CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
831-536 4 Watsonville CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
831-536 5 Watsonville CA SNFCCA01XGX  516C AT&T CORP. 722      
831-536 6 Watsonville CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
831-536 7 Watsonville CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-536 8 Watsonville CA   624H ONVOY SPECTRUM, LLC 722      
831-536 9 Watsonville CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
831-537 A Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-537 0 Hollister CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-537 1 Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-537 2 Hollister CA   649C ONVOY, LLC - CA 736      
831-537 3 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-537 4 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-537 5 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-537 6 Hollister CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-537 7 Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-537 8 Hollister CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-537 9 Hollister CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-539 A Watsonville CA   6529 T-MOBILE USA, INC. 722      
831-539 0 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-539 1 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 2 Watsonville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-539 3 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 4 Watsonville CA   649C ONVOY, LLC - CA 722      
831-539 5 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 6 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 7 Watsonville CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
831-539 8 Watsonville CA   5562 METROPCS, INC. 722      
831-539 9 Watsonville CA   5562 METROPCS, INC. 722      
831-540 A Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-540 0 Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-540 1 Salinas CA   515J IP HORIZON LLC 736      
831-540 2 Salinas CA SLNSCA01XKY  506J TWILIO INTERNATIONAL, INC. 736      
831-540 3 Salinas CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-540 4 Salinas CA   515J IP HORIZON LLC 736      
831-540 5 Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-540 6 Salinas CA SLNSCA01XQX  5562 METROPCS, INC. 736      
831-540 7 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-540 8 Salinas CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-540 9 Salinas CA SLNSCA01XQX  6529 T-MOBILE USA, INC. 736      
831-566 A Santa Cruz CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
831-572 A Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 0 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 1 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 2 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 3 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 4 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 5 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 6 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 7 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 8 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-572 9 Aptos CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-574 A Carmel CA SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736      
831-574 0 Carmel CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-574 1 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-574 2 Carmel CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-574 3 Carmel CA SLNSCA01X5Y  516C AT&T CORP. 736      
831-574 4 Carmel CA SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736      
831-574 5 Carmel CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-574 6 Carmel CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736      
831-574 7 Carmel CA SLNSCA01X7Y  508J CENTURYLINK COMMUNICATIONS, LLC 736      
831-574 8 Carmel CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736      
831-574 9 Carmel CA SLNSCA01XEY  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 736      
831-575 A Santa Cruz CA SNTCCA0102T  9740 PACIFIC BELL 722      
831-576 A Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-01-21   
831-576 0 Santa Cruz CA SNFCCAMKX1Y  996H AIRESPRING, INC. 722      
831-576 1 Santa Cruz CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, 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: ISP Telecom

Like this site? We accept donations via PayPal.