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: 674

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-674 A Midland NY GRCYNYDYDS0  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-674 0 Midland NY   7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      
631-674 1 Midland NY   473G TELENGY L.L.C. - NY 132   2012-02-27   
631-674 2 Midland NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2013-04-21   
631-674 3 Midland NY   515J IP HORIZON LLC 132   2015-03-25   
631-674 4 Midland NY   384C ONVOY, LLC- NY 132   2021-01-29   
631-674 5 Midland NY   321J HD CARRIER LLC 132   2014-08-01   
631-674 6 Midland NY   384C ONVOY, LLC- NY 132   2026-02-08   
631-674 7 Midland NY   624H ONVOY SPECTRUM, LLC 132   2022-02-28   
631-674 8 Midland NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2013-04-21   
631-674 9 Midland NY   7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 132      

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

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