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.


NPA-NXX BLOCK Rate Centre Region Switch LATA Eff date Disc date Map
520-823 A Sasabe AZ SASBAZXCDS0  668     map
928-353 A Greenehaven AZ MRCNAZXEDS0  666     map
928-354 A Mormon Lake AZ MMLKAZXCRS0  666     map
928-355 A Marble Canyon AZ MRCNAZXCDS0  666     map
928-372 A Harquahala Valley AZ HRVYAZXCDS1  666     map
928-448 A Supai AZ SUPAAZXCDS0  666     map
928-454 A Hyder AZ DTLDAZ01DS0  666     map
928-467 A Roosevelt Lake AZ RSVTAZXCDS0  666     map
928-477 A Blue Ridge AZ BLRGAZXCDS0  666     map
928-479 A Roosevelt Lake AZ TNBSAZXCDC0  666     map

Last updated: Sat, 09 Jun 2018 13:21:19 UTC

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