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.

Danbury, CT

<< 1 2 3 4 5 6 7 8 9 10 11

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
475-750 2 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-12-30   
475-750 3 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-12-30   
475-750 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-12-30   
475-750 5 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-12-30   
475-750 6   639C ONVOY, LLC - CT 920   2024-02-04   
475-750 7 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-11   
475-750 8 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-11   
475-750 9 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-11   
475-867 A HRFRCTBC0MD  939H COMMIO, LLC 920      
475-867 0 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2023-11-03   
475-867 1 HRFRCTBC0MD  939H COMMIO, LLC 920   2023-12-23   
475-867 2 HRFRCTBC0MD  939H COMMIO, LLC 920   2023-12-23   
475-867 3 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-20   
475-867 4 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2023-12-20   
475-867 5 HRFRCTBC0MD  939H COMMIO, LLC 920   2022-11-13   
475-867 6   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2024-02-22   
475-867 7   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2024-02-22   
475-867 8 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2023-09-08   
475-867 9 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2023-03-24   

<< 1 2 3 4 5 6 7 8 9 10 11

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.