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.
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Switch: MDTWCA11RS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-987 A Middletown CA 9740 PACIFIC BELL 722      
707-987 0 Middletown CA 9740 PACIFIC BELL 722      
707-987 1 Middletown CA 9740 PACIFIC BELL 722      
707-987 2 Middletown CA 9740 PACIFIC BELL 722      
707-987 3 Middletown CA 9740 PACIFIC BELL 722      
707-987 4 Middletown CA 9740 PACIFIC BELL 722      
707-987 8 Middletown CA 9740 PACIFIC BELL 722      
707-987 9 Middletown CA 9740 PACIFIC BELL 722      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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