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: HRFRCT0380Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-201 A New Haven CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-279 A Bridgeport CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-282 A Stamford CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-289 A Danbury CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-342 A Bridgeport CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-398 A Norwalk CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-477 A New Haven CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-593 A Norwalk CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-760 A Bridgeport CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
203-780 A New Haven CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
203-835 A Norwalk CT 6630 USA MOBILITY WIRELESS, INC. 920      
203-839 A Norwalk CT 6630 USA MOBILITY WIRELESS, INC. 920      
475-200 A Huntington CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-212 A Naugatuck CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-222 A Waterbury CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-239 A Trumbull CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-242 A Redding CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-243 A Ansonia-Derby CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-253 A Wallingford CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-263 A Waterbury CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-444 A Newtown CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-666 A Westport CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-701 A Naugatuck CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-739 A Wolcott CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-777 A Ansonia-Derby CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-888 A Fairfield CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-999 A Fairfield CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-330 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-332 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-360 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-363 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-366 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-369 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-390 A Lyme CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-400 A Ledyard CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-407 A Jewett City CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-473 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-504 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-587 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-708 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-744 A Clinton CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-800 A Norwich CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-820 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-825 A Hartford CT 6630 USA MOBILITY WIRELESS, INC. 920      
860-900 A Hartford CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-955 A Hartford CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-971 A Stafford Springs CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
860-999 A Hartford CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
959-210 A Willimantic CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
959-444 A Willimantic CT 539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.