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: CMBROHXBDS0

Remotes:

Switch Switch name Switch type
BRLWOHXARS0  BARLOW WATERTOWN  GTR 
BVRLOHXARS0  BEVERLY  GTR 
CLWLOHXARS0  CALDWELL  GTR 
DXCYOHXARS0  DEXTER CITY  GTR 
LWLLOHAN0MD    POI 
LWSLOHXARS0  LOWER SALEM  GTR 
NWCNOHXARS2  NEW CONCORD  GTR 
SRFDOHXARS0  SUMMERFIELD  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
740-432 A Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 A Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 0 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 1 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 2 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 3 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 4 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324   2004-07-30   
740-435 8 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-435 9 Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      
740-439 A Cambridge OH 0615 FRONTIER NORTH, INC. - OH 324      

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

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