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: Sat, 05 Apr 2014 10:55:46 UTC

How to use this page

NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-999 A New Haven CT WLFRCTXBCM0 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08 map
203-999 0 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 1 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 2 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 3 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 4 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 5 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 6 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 7 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 8 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08
203-999 9 New Haven CT 6664 SPRINT SPECTRUM L.P. [link] 920 2011-05-08



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