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

NXX:

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

Last updated: Thu, 31 Jan 2019 11:20:40 UTC

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