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: Fri, 17 May 2013 01:26:12 UTC

How to use this page

OCN: 516C SBC INTERNET SERVICES, INC. [Rate centres for OCN 516C]

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NPA-NXX-X Rate Centre Region Switch LATA Eff date Disc date Map
203-208-5 Branford CT 920 2006-07-07
203-292-7 Fairfield CT 920 2006-07-07
203-304-8 Newtown CT 920 2007-09-07
203-344-2 Old Greenwich CT 920 2007-03-01
203-350-5 Madison CT 920 2007-09-07
203-383-2 Bridgeport CT 920 2006-07-07
203-403-5 Ridgefield CT 920 2007-09-07
203-408-5 Redding CT 920 2011-07-06
203-424-5 Darien CT 920 2007-09-07
203-428-6 Stamford CT 920 2006-07-07
203-448-5 Danbury CT 920 2011-09-22
203-457-7 Guilford CT 920 2007-09-07
203-463-0 Seymour CT 920 2010-03-23 map
203-505-6 Norwalk CT 920 2006-07-07
203-513-7 Huntington CT 920 2006-07-07
203-527-8 Waterbury CT 920 2006-07-07
203-544-5 Georgetown CT 920 2011-07-06
203-563-4 Wilton CT 920 2007-09-07
203-586-5 Woodbury CT 920 2011-07-06
203-594-2 New Canaan CT 920 2007-09-07
203-599-8 Meriden CT 920 2006-07-07
203-633-5 Wolcott CT 920 2011-04-26
203-679-2 Wallingford CT 920 2006-07-07
203-682-3 Westport CT 920 2006-07-07
203-713-6 Milford CT 920 2006-07-07
203-714-7 Naugatuck CT 920 2007-09-07
203-745 New Haven CT HRFRCT0376Z 920 map
203-745-1 New Haven CT 920
203-751-6 Ansonia-Derby CT 920 2007-03-01
203-826-5 Danbury CT 920 2006-07-07
203-842-7 Norwalk CT 920 2011-08-11
203-872-3 Cheshire CT 920 2006-06-30
203-873-6 Bridgeport CT 920 2010-01-25
203-880-4 Trumbull CT 920 2006-07-07
203-903-5 New Haven CT 920 2009-10-21
203-916-8 Bridgeport CT 920 2011-04-06
203-968-5 Stamford CT 920 2013-04-17
205-235 Dora AL 476 2010-02-04 map
205-235-7 Dora AL 476 2010-02-04
205-258-5 Clanton AL 476 2009-08-10
205-285-5 Gardendale AL 476 2009-08-10
205-286-4 West Blocton AL 476 2009-08-10
205-290-5 Birmingham AL 476 2011-07-07
205-291-5 Vincent AL 476 2011-09-28
205-295-5 Jasper AL 476 2009-08-10
205-319 Calera AL 476 2010-02-05 map
205-319-7 Calera AL 476 2010-02-05
205-340-0 Centreville AL 476 2011-09-28 map
205-346-2 Eutaw AL 476 2010-10-31
205-392-6 York AL 476 2011-09-28


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