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: 415 [Rate centres in NPA 415] [Dial plan for NPA 415]

NXX: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-438 A San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 0 San Francisco: Central DA CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
415-438 1 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 2 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 3 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 4 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 5 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 6 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 7 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 8 San Francisco: Central DA CA SNFCCA01DS2  9740 PACIFIC BELL 722      
415-438 9 San Francisco: Central DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.