Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 607 [Rate centres in NPA 607] [Dial plan for NPA 607]

NXX: 645

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-645 A Ithaca NY ITHCNYIHDS0  9104 VERIZON NEW YORK, INC. 136      
607-645 0 Ithaca NY   9104 VERIZON NEW YORK, INC. 136      
607-645 1 Ithaca NY   197D VONAGE AMERICA LLC 136   2018-12-08   
607-645 2 Ithaca NY   4006 LEVEL 3 COMMUNICATIONS, LLC - NY 136   2022-09-10   
607-645 3 Ithaca NY   7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 136   2017-08-04   
607-645 4 Ithaca NY   384C ONVOY, LLC- NY 136   2021-01-11   
607-645 5 Ithaca NY   384C ONVOY, LLC- NY 136   2021-01-11   
607-645 6 Ithaca NY   384C ONVOY, LLC- NY 136   2021-01-11   
607-645 7 Ithaca NY   384C ONVOY, LLC- NY 136   2021-01-11   
607-645 8 Ithaca NY   197D VONAGE AMERICA LLC 136   2018-12-08   
607-645 9 Ithaca NY   197D VONAGE AMERICA LLC 136   2018-12-08   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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