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.

NPA: 959 [Rate centres in NPA 959] [Dial plan for NPA 959]

NXX: 250

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
959-250 A Manchester CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
959-250 0 Manchester CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2026-05-08   
959-250 1 Manchester CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2026-01-29   
959-250 2 Manchester CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-09-04   
959-250 3 Manchester CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-09-04   
959-250 4 Manchester CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-09-04   
959-250 5 Manchester CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2025-05-30   
959-250 7 Manchester CT   639C ONVOY, LLC - CT 920   2026-05-21   
959-250 8 Manchester CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2025-07-25   
959-250 9 Manchester CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2023-09-08   

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.