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: 791

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-791 A Port Jefferson NY NYCMNY83DS5  8340 XO NEW YORK, INC. 132      
631-791 0 Port Jefferson NY   8340 XO NEW YORK, INC. 132      
631-791 1 Port Jefferson NY   8340 XO NEW YORK, INC. 132      
631-791 2 Port Jefferson NY   8340 XO NEW YORK, INC. 132      
631-791 3 Port Jefferson NY   7133 MCI WORLDCOM COMMUNICATIONS INC. - NY 132   2003-06-09   
631-791 4 Port Jefferson NY   7140 TC SYSTEMS,INC. - NY 132   2002-12-01   
631-791 5 Port Jefferson NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2003-01-13   
631-791 6 Port Jefferson NY   384C ONVOY, LLC NY 132   2016-03-04   
631-791 7 Port Jefferson NY   3864 CTC COMMUNICATIONS CORP. - NY 132   2006-08-02   
631-791 8 Port Jefferson NY   473G TELENGY L.L.C. - NY 132   2012-02-27   
631-791 9 Port Jefferson NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2004-12-03   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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