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: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-540 A Mattituck NY NYCMNYBXDSL  384C ONVOY, LLC- NY 132      
631-540 0 Mattituck NY   384C ONVOY, LLC- NY 132   2021-01-29   
631-540 1 Mattituck NY   384C ONVOY, LLC- NY 132   2020-07-12   
631-540 2 Mattituck NY   384C ONVOY, LLC- NY 132   2020-07-12   
631-540 3 Mattituck NY   624H ONVOY SPECTRUM, LLC 132   2020-08-05   
631-540 4 Mattituck NY   624H ONVOY SPECTRUM, LLC 132   2020-08-05   
631-540 5 Mattituck NY   624H ONVOY SPECTRUM, LLC 132   2020-08-05   
631-540 6 Mattituck NY   624H ONVOY SPECTRUM, LLC 132   2020-08-05   
631-540 8 Mattituck NY   384C ONVOY, LLC- NY 132   2021-01-29   
631-540 9 Mattituck NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2021-01-10   

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

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