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: 567 [Rate centres in NPA 567] [Dial plan for NPA 567]

NXX: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
567-550 A Montpelier OH BWLGOHXAZMD  464C ONVOY, LLC - OH 326      
567-550 0 Montpelier OH   464C ONVOY, LLC - OH 326   2021-06-13   
567-550 1 Montpelier OH   464C ONVOY, LLC - OH 326   2021-06-14   
567-550 2 Montpelier OH   464C ONVOY, LLC - OH 326   2023-09-16   
567-550 3 Montpelier OH   624H ONVOY SPECTRUM, LLC 326   2024-10-28   
567-550 4 Montpelier OH   464C ONVOY, LLC - OH 326   2021-06-26   
567-550 5 Montpelier OH   464C ONVOY, LLC - OH 326   2021-06-26   
567-550 8 Montpelier OH   073H TELNYX LLC 326   2022-02-27   
567-550 9 Montpelier OH   284F PEERLESS NETWORK OF OHIO, LLC - OH 326   2021-07-24   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.