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.

Merrill, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-938 A MRRLIACORS9  9631 QWEST CORPORATION 630      
712-938 0   073H TELNYX LLC 630   2020-05-29   
712-938 1   221F ONVOY, LLC - IA 630   2019-07-25   
712-938 2   9631 QWEST CORPORATION 630      
712-938 3   221F ONVOY, LLC - IA 630   2018-10-19   
712-938 4   221F ONVOY, LLC - IA 630   2019-07-25   
712-938 5   508J CENTURYLINK COMMUNICATIONS, LLC 630   2016-12-24   
712-938 6   904D PREMIER COMMUNICATIONS, INC. - IA 630   2011-10-03   
712-938 7   145J TERRA NOVA TELECOM INC. 630   2025-02-14   
712-938 8   515J IP HORIZON LLC 630   2025-10-03   
712-938 9   221F ONVOY, LLC - IA 630   2021-05-10   
712-955 A SXCYIADT9MD  221F ONVOY, LLC - IA 630      
712-955 0   221F ONVOY, LLC - IA 630   2023-05-10   
712-955 5   145J TERRA NOVA TELECOM INC. 630   2024-02-13   
712-955 7   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630   2023-01-08   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.