Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 363

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-363 A Westport CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-22   
475-363 0 Westport CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-22   
475-363 2 Westport CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2024-11-01   
475-363 3 Westport CT HRFRCT03XMX  145J TERRA NOVA TELECOM INC. 920   2024-04-23   
475-363 9 Westport CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2024-09-21   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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