Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Thu, 18 Dec 2014 10:58:19 UTC

How to use this page

NPA: 860 [Rate centres in NPA 860] [Dial plan for NPA 860]

NXX: 975

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
860-975 A Middletown CT HRFRCTASDS0 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC [link] 920 map
860-975 0 Middletown CT 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC [link] 920
860-975 1 Middletown CT 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC [link] 920
860-975 2 Middletown CT 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC [link] 920 2013-04-04
860-975 3 Middletown CT 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC [link] 920 2008-08-12
860-975 9 Middletown CT 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC [link] 920



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