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: SXCTIAXODS0

Remotes:

Switch Switch name Switch type
AKRNIAAERS5  AKRON  DRL 
BYDNIAACRS7  BOYDEN  DRL 
DOONIAAARS7  DOON  DRL 
HULLIAACRS4  HULL  DRL 
HWRDIAAERS5  HAWARDEN  DRL 
IRTNIAAARS2  IRETON  DRL 
RCVYIAACRS4  ROCK VALLEY  DRL 
SBLYIAACRS7  SIBLEY  DRL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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