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.

Colfax: Colfax DA, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
530-323 A SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-346 A CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-346 0 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-346 1 CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-346 2 CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-346 3 SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-346 4 SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-346 5 SCRMCA0121Z  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 726      
530-346 6 CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-346 7 CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-346 8 CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-346 9 CLFXCAXF34E  4420 FRONTIER CALIFORNIA INC. 726      
530-349 A SCRLCAXXDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 726      
530-349 0 SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-349 1 SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-349 3 WSCRCABYDS1  7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 726      
530-349 4 WSCRCAHW3MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 726      
530-349 5 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-349 6 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-349 7 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-349 8 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-349 9 SCRLCAXXDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 726      
530-512 A SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-512 0 SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-512 1   515J IP HORIZON LLC 726      
530-512 2   515J IP HORIZON LLC 726      
530-512 3 SCRMCA01X7Z  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 726      
530-512 4   515J IP HORIZON LLC 726      
530-512 5 WSCRCACMDS0  485E ASTOUND BROADBAND, LLC - CA 726      
530-512 6 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-512 7 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-512 8 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-512 9 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-819 A SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-819 0 SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-819 6   624H ONVOY SPECTRUM, LLC 726      
530-819 7   624H ONVOY SPECTRUM, LLC 726      
530-819 8   624H ONVOY SPECTRUM, LLC 726      
530-866 A SCRMCA0104Z  965H FRACTEL, LLC 726      
530-866 0 SCRMCA01X7Z  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 726      
530-866 1 SCRMCA01XYZ  073H TELNYX LLC 726      
530-866 2 SCRMCA0108Z  516J TON80 COMMUNICATIONS, LLC 726      
530-866 3 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-866 4 SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-866 6 SCRMCA0104Z  965H FRACTEL, LLC 726      
530-866 7 SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726      
530-866 8   145J TERRA NOVA TELECOM INC. 726      
530-866 9 SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.