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: MDTWCTNIBMD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
475-439 5 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-01-16   
475-439 6 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-01-16   
475-439 7 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-10-28   
475-439 8 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-10-28   
475-439 9 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-09-19   
475-441 1 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-11-04   
475-441 2 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-11-04   
475-444 2 Newtown CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2014-03-29   
475-459 5 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2018-07-30   
475-467 9 Trumbull CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2022-06-23   
475-470 6 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-09-17   
475-470 9 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-06-05   
475-529 1 Danbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-11-15   
475-529 7 Danbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2012-11-10   
475-529 8 Danbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-11-15   
475-529 9 Danbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-11-15   
475-544 0 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2022-05-18   
475-544 4 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-11-17   
475-550 2 Stamford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2022-10-24   
475-550 4 Stamford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-02-12   
475-619 4 Stamford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-08-12   
475-619 7 Stamford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-06-30   
475-655 6 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-06-30   
475-666 7 Westport CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-10-04   
475-666 8 Westport CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-09-28   
475-666 9 Westport CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-08-26   
475-688 2 Meriden CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-09-30   
475-689 1 Waterbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-10-31   
475-689 5 Waterbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-08-12   
475-689 6 Waterbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-08-12   
475-755 2 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-09-30   
475-766 0 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-11-30   
475-766 9 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-08-20   
475-775 6 Meriden CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-10-16   
475-777 4 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-08-12   
475-777 9 Ansonia-Derby CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-06-17   
475-837 1 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-02-20   
475-837 2 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-02-20   
475-837 3 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-03-21   
475-837 8 New Haven CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-03-21   
475-850 8 Norwalk CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2024-02-09   
475-867 0 Danbury CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-11-03   
475-882 0 Huntington CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2012-09-05   
475-882 9 Huntington CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2013-10-12   
475-988 8 Bridgeport CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2016-01-19   
860-202 A Hartford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-205 A Hartford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-208 A Willimantic CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-212 A Hartford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
860-216 7 Hartford CT 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-02-15   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.