Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
415-848 4 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 5 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 6 San Francisco: Central DA CA SNFCCAFJDS0  722   2000-10-06   
415-874 3 San Francisco: Central DA CA SNFCCAFJDS0  722   2001-01-29   
415-874 4 San Francisco: Central DA CA SNFCCAFJDS0  722   2001-01-29   
415-874 6 San Francisco: Central DA CA SNFCCAFJDS0  722   2005-04-01   
415-887 A Sausalito CA SNFCCAFJDS0  722      
415-887 3 Sausalito CA SNFCCAFJDS0  722      
415-887 4 Sausalito CA SNFCCAFJDS0  722      
415-888 6 Mill Valley CA SNFCCAFJDS0  722   2010-05-10   
415-889 A Belvedere CA SNFCCAFJDS0  722      
415-889 4 Belvedere CA SNFCCAFJDS0  722      
510-217 A Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 0 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 1 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 2 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 3 Oakland: Alameda DA CA OKLDCA03DS6  722      
510-217 4 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 5 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 6 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 7 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 9 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-244 5 Hayward CA OKLDCA03DS5  722   2011-09-27   
510-255 8 Richmond CA SNRSCA01KMD  722   2012-09-14   
510-257 A Fremont-Newark: Oliver DA CA SNJSCA02DS4  722      
510-257 0 Fremont-Newark: Oliver DA CA SNJSCA02DS4  722      
510-275 2 El Sobrante-Pinole CA SNRSCA01KMD  722   2002-10-27   
510-313 A Hercules-Rodeo CA SNRSCA01KMD  722      
510-313 9 Hercules-Rodeo CA SNRSCA01KMD  722      
510-319 5 Fremont-Newark: Oliver DA CA OKLDCA03DS5  722   2016-03-25   
510-343 8 Oakland: Trinidad DA CA SNRSCA01KMD  722   2001-09-26   
510-350 A Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      
510-350 0 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      
510-350 2 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      
510-350 4 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      
510-350 9 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      
510-361 3 Hayward CA OKLDCA03DS5  722   2015-06-01   
510-369 8 Richmond CA SNRSCA01KMD  722   2016-04-18   
510-389 A Oakland: Trinidad DA CA SNRSCA01KMD  722      
510-389 6 Oakland: Trinidad DA CA SNRSCA01KMD  722   2023-08-01   
510-394 A Oakland: Trinidad DA CA SNRSCA01KMD  722      
510-394 6 Oakland: Trinidad DA CA SNRSCA01KMD  722   2010-01-28   
510-394 9 Oakland: Trinidad DA CA SNRSCA01KMD  722      
510-395 A Oakland: Fruitvale DA CA SNRSCA01KMD  722      
510-395 9 Oakland: Fruitvale DA CA SNRSCA01KMD  722      
510-404 2 Fremont-Newark: Greenleaf DA CA OKLDCA03DS5  722   2014-02-14   
510-419 7 Oakland: Main-Piedmont DA CA SNRSCA01KMD  722   2020-07-13   
510-449 A Fremont-Newark: Main DA CA SNRSCA01KMD  722      
510-449 0 Fremont-Newark: Main DA CA SNRSCA01KMD  722      
510-457 A Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      

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

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