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: 220 [Rate centres in NPA 220] [Dial plan for NPA 220]

NXX: 599

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
220-599 A Laurelville OH CLMDOH44JMD  965H FRACTEL, LLC 324      
220-599 0 Laurelville OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2023-09-30   
220-599 1 Laurelville OH CLMBOH1143Z  624H ONVOY SPECTRUM, LLC 324   2024-08-01   
220-599 5 Laurelville OH   145J TERRA NOVA TELECOM INC. 324   2025-07-24   
220-599 9 Laurelville OH CLMDOH44JMD  965H FRACTEL, LLC 324   2021-08-12   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.