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: SNLNCA11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-258 A Hayward CA 9740 PACIFIC BELL 722      
510-258 0 Hayward CA 9740 PACIFIC BELL 722      
510-276 A Hayward CA 9740 PACIFIC BELL 722      
510-278 A Hayward CA 9740 PACIFIC BELL 722      
510-294 1 Hayward CA 9740 PACIFIC BELL 722      
510-294 2 Hayward CA 9740 PACIFIC BELL 722      
510-294 3 Hayward CA 9740 PACIFIC BELL 722      
510-294 4 Hayward CA 9740 PACIFIC BELL 722      
510-294 5 Hayward CA 9740 PACIFIC BELL 722      
510-294 6 Hayward CA 9740 PACIFIC BELL 722      
510-294 7 Hayward CA 9740 PACIFIC BELL 722      
510-297 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-317 A Hayward CA 9740 PACIFIC BELL 722      
510-346 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 1 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 3 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 4 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 7 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-346 8 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 1 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 3 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 4 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 5 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-347 6 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-351 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-352 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-357 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 1 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 3 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 4 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 5 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 6 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-454 7 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-481 A Hayward CA 9740 PACIFIC BELL 722      
510-483 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-614 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 1 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 3 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 4 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 5 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 6 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 7 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-618 8 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 1 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 3 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 4 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 5 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 6 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 7 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 8 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-667 9 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-678 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-895 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      

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

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