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: 351 [Rate centres in NPA 351] [Dial plan for NPA 351]

NXX: 361

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-361 A Ashby MA   624H ONVOY SPECTRUM, LLC 128   2021-05-17   
351-361 0 Ashby MA   073H TELNYX LLC 128   2021-05-18   
351-361 1 Ashby MA   892D ONVOY, LLC - MA 128   2021-05-18   
351-361 3 Ashby MA   624H ONVOY SPECTRUM, LLC 128   2021-05-17   
351-361 6 Ashby MA   566J RADIANTIQ LLC 128   2021-05-18   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.