Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 415 [Rate centres in NPA 415] [Dial plan for NPA 415]

NXX: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-644 A San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 0 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 1 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 2 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 3 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 4 San Francisco: Central DA CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2008-05-04   
415-644 5 San Francisco: Central DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-03-10   
415-644 6 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 7 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      
415-644 8 San Francisco: Central DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-11-09   
415-644 9 San Francisco: Central DA CA SNFCCA21DS1  9740 PACIFIC BELL 722      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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