Local Calling Guide

Area code/prefix search

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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 573

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-573 A Sayville NY   612K CSC VOICE, LLC 132      
631-573 0 Sayville NY NYCMNYZRDBS  155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2013-04-22   
631-573 1 Sayville NY NYCMNYBX3MD  473G TELENGY L.L.C. - NY 132   2012-02-27   
631-573 2 Sayville NY NYCMNYZRYMD  508J CENTURYLINK COMMUNICATIONS, LLC 132   2014-05-01   
631-573 3 Sayville NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2012-03-29   
631-573 4 Sayville NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2016-03-07   
631-573 5 Sayville NY NYCMNY37UMD  321J HD CARRIER LLC 132   2014-08-01   
631-573 6 Sayville NY   612K CSC VOICE, LLC 132   2013-09-05   
631-573 7 Sayville NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132   2012-04-08   
631-573 8 Sayville NY   612K CSC VOICE, LLC 132   2011-12-08   
631-573 9 Sayville NY NYCMNYZRDBS  155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2013-04-22   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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