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: 413 [Rate centres in NPA 413] [Dial plan for NPA 413]

NXX: 319

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-319 A Holyoke MA SPFDMAWOXLY  892D ONVOY, LLC - MA 126      
413-319 0 Holyoke MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 126   2018-08-06   
413-319 1 Holyoke MA   892D ONVOY, LLC - MA 126   2018-04-07   
413-319 2 Holyoke MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 126   2020-07-23   
413-319 3 Holyoke MA   892D ONVOY, LLC - MA 126   2021-03-23   
413-319 4 Holyoke MA   990E BANDWIDTH.COM CLEC, LLC - MA 126   2024-09-16   
413-319 5 Holyoke MA   073H TELNYX LLC 126   2021-03-28   
413-319 6 Holyoke MA   892D ONVOY, LLC - MA 126   2022-11-24   
413-319 7 Holyoke MA   624H ONVOY SPECTRUM, LLC 126   2020-11-30   
413-319 8 Holyoke MA   892D ONVOY, LLC - MA 126   2021-03-23   
413-319 9 Holyoke MA   892D ONVOY, LLC - MA 126   2021-03-23   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.