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: CLSMPAXCDS0

Remotes:

Switch Switch name Switch type
BRKLPAXBRS0  BROOKLYN  RSC 
DLTNPAXDRS1  DALTON  RSC 
FCTVPAXFRS0  FACTORYVILLE  RSC 
LCYVPAXLRS1  LACEYVILLE  RSC 
LKWNPAXLRS1  LAKE WINOLA  RSC 
LVCNPAXLRS0  LAWSVILLE  RSC 
MHPNPAXMRS1  MEHOOPANY  RSC 
NCSNPAXNRS1  NICHOLSON  RSC 
RUSHPAXRRS1  RUSH  RSC 
STJSPAXSRS0  SAINT JOSEPH  RSC 
SVLSPAXSRS0  SPRINGVILLE  RSC 
TNKHPAXTRS0  TUNKHANNOCK  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
570-319 3 Clarks Summit PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232   2006-08-18   
570-585 A Clarks Summit PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-586 A Clarks Summit PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-587 A Clarks Summit PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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