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: SNJSCARMDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
831-319 A Watsonville CA 7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-319 0 Watsonville CA 7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-337 A Boulder Creek CA 7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-337 1 Boulder Creek CA 7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-337 9 Boulder Creek CA 7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
831-704 4 Felton CA 7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2008-05-01   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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