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.

Switch: SSLTCA11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-289 A Sausalito CA 9740 PACIFIC BELL 722      
415-289 0 Sausalito CA 9740 PACIFIC BELL 722      
415-289 1 Sausalito CA 9740 PACIFIC BELL 722      
415-289 2 Sausalito CA 9740 PACIFIC BELL 722      
415-289 3 Sausalito CA 9740 PACIFIC BELL 722      
415-289 4 Sausalito CA 9740 PACIFIC BELL 722      
415-289 6 Sausalito CA 9740 PACIFIC BELL 722      
415-289 7 Sausalito CA 9740 PACIFIC BELL 722      
415-289 8 Sausalito CA 9740 PACIFIC BELL 722      
415-331 A Sausalito CA 9740 PACIFIC BELL 722      
415-332 A Sausalito CA 9740 PACIFIC BELL 722      
415-339 A Sausalito CA 9740 PACIFIC BELL 722      
415-339 0 Sausalito CA 9740 PACIFIC BELL 722      
415-339 1 Sausalito CA 9740 PACIFIC BELL 722      
415-339 2 Sausalito CA 9740 PACIFIC BELL 722      
415-339 3 Sausalito CA 9740 PACIFIC BELL 722      
415-339 7 Sausalito CA 9740 PACIFIC BELL 722      
415-339 8 Sausalito CA 9740 PACIFIC BELL 722      
415-339 9 Sausalito CA 9740 PACIFIC BELL 722      

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

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