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: MILNOHXADS0

Remotes:

Switch Switch name Switch type
BLLVOHXARS0  BELLEVUE  EXM 
GNWCOHXARS0  GREENWICH  5BR 
HURNOHXARS0  HURON  5ER 
MOVLOHXARS0  MONROEVILLE  5BR 
OKHROHXBRS0  OAK HARBOR  5ER 
PLMOOHXBRS0  PLYMOUTH  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
419-499 A Milan OH 0615 FRONTIER NORTH, INC. - OH 326      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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