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: GRTWOHXADS0

Remotes:

Switch Switch name Switch type
DCTROHXBRS0  DECATUR  GTR 
FLCYOHXARS0  FELICITY  GTR 
HGPTOHXBRL0  HIGGINSPORT  GTR 
HSVLOHXARS0  HAMERSVILLE  GTR 
MTOROHXARS0  MOUNT ORAB  GTR 
MWTWOHXBRS1  MOWRYSTOWN  GTR 
RLVLOHXBRS0  RUSSELLVILLE  GTR 
SRDNOHXARS0  SARDINIA  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-378 A Georgetown OH 0615 FRONTIER NORTH, INC. - OH 328      

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

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