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: TROYOHXADS0

Remotes:

Switch Switch name Switch type
ENWDOHXARS0  ENGLEWOOD  EXM 
GRTSOHXARS0  GRATIS  5ER 
LAUROHXARS0  LAURA  ORM 
LBRTOHXARS0  LIBERTY  5ER 
LWBGOHXARS0  LEWISBURG  5ER 
PHBGOHXARS0  PHILLIPSBURG  5BR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-332 A Troy OH 0615 FRONTIER NORTH, INC. - OH 328      
937-335 A Troy OH 0615 FRONTIER NORTH, INC. - OH 328      
937-339 A Troy OH 0615 FRONTIER NORTH, INC. - OH 328      
937-440 A Troy OH 0615 FRONTIER NORTH, INC. - OH 328      
937-552 8 Troy OH 0615 FRONTIER NORTH, INC. - OH 328   2007-09-20   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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