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: DLWROHXADS0

Remotes:

Switch Switch name Switch type
ASHYOHXARS0  ASHLEY  GTR 
CHSDOHXARS0  CHESHIRE CENTER  GTR 
KLBROHXARL0  KILBOURNE  GTR 
OSTROHXBRS0  OSTRANDER  GTR 
RDNROHXARL0  RADNOR  GTR 
RTHBOHXARS0  RATHBONE  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
740-362 A Delaware OH 0615 FRONTIER NORTH, INC. - OH 324      
740-363 A Delaware OH 0615 FRONTIER NORTH, INC. - OH 324      
740-368 A Delaware OH 0615 FRONTIER NORTH, INC. - OH 324      
740-369 A Delaware OH 0615 FRONTIER NORTH, INC. - OH 324      
740-833 A Delaware OH 0615 FRONTIER NORTH, INC. - OH 324      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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