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: CHOKMNXCDS1

Remotes:

Switch Switch name Switch type
BBCYMNXBRS2  MILAN  RS 
BLHMMNXBRS2  BELLINGHAM  RS 
CRGRMNXCRS2  CERRO GORDO  RS 
CRRLMNXARS2  APPLETON  RS 
DNVSMNXDRS2  DANVERS  RS 
HLWYMNXARS2  HOLLOWAY  RS 
HNCCMNXHRS2  HANCOCK  RS 
MILNMNXMRS2  MILAN  RS 
MRTTMNXMRS2  MARIETTA  RS 
ODSSMNXORS2  ODESSA  RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
320-324 A Chokio MN 1390 FEDERATED TEL. COOP. 626      

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

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