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: GDISNENWDS1

Remotes:

Switch Switch name Switch type
CAIRNENWRS1  CAIRO  AXR 
CNCYNENWRS1  CENTRAL CITY  AXR 
HLDGNENWRS1  HOLDREGE  AXR 
LPCYNENWRS1  LOUP CITY  AXR 
MINDNENWRS1  MINDEN  AXR 
OXFRNENWRS1  OXFORD  AXR 
STLBNENWRS1  ST LIBORY  AXR 
STPLNENWRS1  ST PAUL  AXR 
WDRVNENWRS1  WOOD RIVER  AXR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.