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: DLLSPAXDDS1

Remotes:

Switch Switch name Switch type
BNTNPAXBRS0  BENTON  RSC 
CNYNPAXCRS0  CONYNGHAM  RSS 
CTMRPAXCRS1  CENTER MORELAND  RSC 
HDNGPAXHRS0  HARDING  RSC 
HNTMPAXHRS1  HUNTINGTON MILLS  RSC 
HVLKPAXHRS0  HARVEYS LAKE  RSC 
MHBGPAXMRS0  MUHLENBURG  RSC 
NNGLPAXNRS0  NUANGOLA  RSC 
NOXNPAXNRS0  NOXEN  RSC 
NRMBPAXNRS2  NUREMBERG  RSC 
ORVLPAXORS0  ORANGEVILLE  RSC 
RGTWPAXRRS2  RINGTOWN  RSC 
SHCKPAXSRS0  SHICKSHINNY  RSC 
SWVYPAXSRS1  SWEET VALLEY  RSC 
TKVLPAXTRS1  TRUCKSVILLE  RSC 
WPWLPAXWRS2  WAPWALLOPEN  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
570-255 A Dallas PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-631 A Dallas PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-674 A Dallas PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-675 A Dallas PA 0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.