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: SCRMCA01PSD

Remotes:

Switch Switch name Switch type
ALGHCA11RPA    RP 
CMPVCA11RPA    RP 
DWNVCA11RPA    RP 
FLSMCA13RPA    RP 
FTUNCA11RPA    RP 
GRDLCA11RPA    RP 
GRVYCA12RPA    RP 
NSJNCA11RPA    RP 
NVCYCA11RPA    RP 
RILNCA12RPA    RP 
SCRMCA01RPA    RP 
SCRMCA13RPA    RP 
SRCYCA11RPA    RP 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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