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: SNMTCA11DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
650-212 A San Mateo CA 9740 PACIFIC BELL 722      
650-212 0 San Mateo CA 9740 PACIFIC BELL 722      
650-212 1 San Mateo CA 9740 PACIFIC BELL 722      
650-212 2 San Mateo CA 9740 PACIFIC BELL 722      
650-212 3 San Mateo CA 9740 PACIFIC BELL 722      
650-212 4 San Mateo CA 9740 PACIFIC BELL 722      
650-212 7 San Mateo CA 9740 PACIFIC BELL 722      
650-212 8 San Mateo CA 9740 PACIFIC BELL 722      
650-212 9 San Mateo CA 9740 PACIFIC BELL 722      
650-286 A San Mateo CA 9740 PACIFIC BELL 722      
650-287 A San Mateo CA 9740 PACIFIC BELL 722      
650-287 0 San Mateo CA 9740 PACIFIC BELL 722      
650-287 1 San Mateo CA 9740 PACIFIC BELL 722      
650-287 2 San Mateo CA 9740 PACIFIC BELL 722      
650-287 3 San Mateo CA 9740 PACIFIC BELL 722      
650-287 4 San Mateo CA 9740 PACIFIC BELL 722      
650-287 6 San Mateo CA 9740 PACIFIC BELL 722      
650-287 7 San Mateo CA 9740 PACIFIC BELL 722      
650-287 8 San Mateo CA 9740 PACIFIC BELL 722      
650-287 9 San Mateo CA 9740 PACIFIC BELL 722      
650-293 A San Mateo CA 9740 PACIFIC BELL 722      
650-293 5 San Mateo CA 9740 PACIFIC BELL 722      
650-293 6 San Mateo CA 9740 PACIFIC BELL 722      
650-294 A San Mateo CA 9740 PACIFIC BELL 722      
650-294 1 San Mateo CA 9740 PACIFIC BELL 722      
650-294 2 San Mateo CA 9740 PACIFIC BELL 722      
650-294 5 San Mateo CA 9740 PACIFIC BELL 722      
650-294 6 San Mateo CA 9740 PACIFIC BELL 722      
650-294 7 San Mateo CA 9740 PACIFIC BELL 722      
650-295 A San Mateo CA 9740 PACIFIC BELL 722      
650-295 2 San Mateo CA 9740 PACIFIC BELL 722      
650-295 3 San Mateo CA 9740 PACIFIC BELL 722      
650-295 4 San Mateo CA 9740 PACIFIC BELL 722      
650-295 5 San Mateo CA 9740 PACIFIC BELL 722      
650-295 6 San Mateo CA 9740 PACIFIC BELL 722      
650-295 7 San Mateo CA 9740 PACIFIC BELL 722      
650-295 8 San Mateo CA 9740 PACIFIC BELL 722      
650-312 A San Mateo CA 9740 PACIFIC BELL 722      
650-350 A San Mateo CA 9740 PACIFIC BELL 722      
650-350 1 San Mateo CA 9740 PACIFIC BELL 722      
650-350 3 San Mateo CA 9740 PACIFIC BELL 722      
650-350 5 San Mateo CA 9740 PACIFIC BELL 722      
650-350 6 San Mateo CA 9740 PACIFIC BELL 722      
650-350 7 San Mateo CA 9740 PACIFIC BELL 722      
650-432 A San Mateo CA 9740 PACIFIC BELL 722      
650-513 A San Mateo CA 9740 PACIFIC BELL 722      
650-513 3 San Mateo CA 9740 PACIFIC BELL 722      
650-513 4 San Mateo CA 9740 PACIFIC BELL 722      
650-513 5 San Mateo CA 9740 PACIFIC BELL 722      
650-513 7 San Mateo CA 9740 PACIFIC BELL 722      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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