Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-995 1 Oakland: Alameda DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-995 2 Oakland: Alameda DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-995 3 Oakland: Alameda DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-995 4 Oakland: Alameda DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-995 5 Oakland: Alameda DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-995 9 Oakland: Alameda DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
628-234 A San Rafael CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
628-234 6 San Rafael CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-05-10   
628-234 7 San Rafael CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-05-10   
628-234 8 San Rafael CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2015-05-10   
628-235 6 San Francisco: Central DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2016-01-28   
628-236 2 Novato CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2016-05-16   
628-241 3 San Francisco: Juniper DA CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2016-08-28   
650-206 A Woodside CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-206 6 Woodside CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2004-04-09   
650-209 A Los Altos CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-209 1 Los Altos CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-209 3 Los Altos CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-209 9 Los Altos CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-223 A Palo Alto CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-223 0 Palo Alto CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-223 2 Palo Alto CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-223 6 Palo Alto CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-223 7 Palo Alto CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-223 8 Palo Alto CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-235 7 San Mateo CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2009-11-21   
650-241 6 Redwood City CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-11-16   
650-241 7 Redwood City CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-12-27   
650-243 A South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-243 2 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-243 3 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-243 4 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-243 5 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-243 6 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-243 9 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-267 7 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2004-02-02   
650-314 7 Mountain View CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-11-16   
650-393 6 San Mateo CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2004-02-02   
650-393 8 San Mateo CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-09-04   
650-409 A Millbrae CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-409 0 Millbrae CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-409 4 Millbrae CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-416 A South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-416 2 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-416 3 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-416 5 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-416 7 South San Francisco CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-417 A Mountain View CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-417 0 Mountain View CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-417 2 Mountain View CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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