Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 607 [Rate centres in NPA 607] [Dial plan for NPA 607]

NXX: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-478 A Andover NY ANDVNYXARS0  0096 CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 138      
607-478 0 Andover NY   384C ONVOY, LLC- NY 138   2018-12-21   
607-478 1 Andover NY   384C ONVOY, LLC- NY 138   2018-12-21   
607-478 2 Andover NY   073H TELNYX LLC 138   2023-05-14   
607-478 3 Andover NY   818H PEERING HUB, INC. - NY 138   2023-05-05   
607-478 4 Andover NY   624H ONVOY SPECTRUM, LLC 138   2021-04-26   
607-478 5 Andover NY   0096 CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 138      
607-478 6 Andover NY   384C ONVOY, LLC- NY 138   2021-03-23   
607-478 7 Andover NY   145J TERRA NOVA TELECOM INC. 138   2025-07-20   
607-478 8 Andover NY   0096 CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 138      
607-478 9 Andover NY   0096 CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 138      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.