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: 217 [Rate centres in NPA 217] [Dial plan for NPA 217]

NXX: 660

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-660 A Rochester IL SPFDILESXVX  318J COMCAST IP PHONE LLC 374   2021-01-20   
217-660 4 Rochester IL   224C ONVOY, LLC 374   2022-04-01   
217-660 6 Rochester IL   145J TERRA NOVA TELECOM INC. 374   2021-01-21   
217-660 8 Rochester IL   318J COMCAST IP PHONE LLC 374   2007-09-23   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.