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: FRSNCA01PSA

Remotes:

Switch Switch name Switch type
DINBCA01RPA    RP 
DLRYCA11RPA    RP 
FRSNCA15RPA    RP 
LEMRCA11RPA    RP 
LEMRCA12RPA    RP 
ORCVCA11RPA    RP 
ORSICA11RPA    RP 
PRLRCA11RPA    RP 
SRFRCA11RPA    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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