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: ELTNTNXADS0

Remotes:

Switch Switch name Switch type
BTLRTNXARS0  BUTLER  RSC 
HMPNTNXARS0  HAMPTON  RSC 
MTCYTNXARS0  MOUNTAIN CITY  RSC 
RNMTTNXARS0  ROAN MOUNTAIN  RSC 
STCKTNXARS0  STONY CREEK  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-542 A Elizabethton TN 4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-543 A Elizabethton TN 4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-547 A Elizabethton TN 4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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