Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 443

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-443 A Eastport NY NYCMNY83DSZ  4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132      
631-443 0 Eastport NY   384C ONVOY, LLC- NY 132   2023-09-30   
631-443 2 Eastport NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2010-08-02   
631-443 3 Eastport NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2005-12-16   
631-443 4 Eastport NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2004-01-13   
631-443 5 Eastport NY   624H ONVOY SPECTRUM, LLC 132   2021-11-21   
631-443 6 Eastport NY   515J IP HORIZON LLC 132   2024-09-15   
631-443 7 Eastport NY   508J CENTURYLINK COMMUNICATIONS, LLC 132   2014-05-02   
631-443 8 Eastport NY   534J UCOMTEL INC. 132   2021-03-08   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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