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: SYLVNCXADS0

Remotes:

Switch Switch name Switch type
BRCYNCXARS1  BRYSON CITY  RSS 
CHRKNCXBRS1  CHEROKEE  RSC 
CLWHNCXARS1  CULLOWHEE  RSC 
CSHRNCXARS0  CASHIERS  RSC 
FNVLNCXARS1  FONTANA  RS 
HGLNNCXARS0  HIGHLANDS  RSC 
ROVLNCXARS0  ROBBINSVILLE  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
828-586 A Sylva NC 0509 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 420      
828-587 A Sylva NC 0509 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 420      
828-631 A Sylva NC 0509 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC 420      

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

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