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: 940 [Rate centres in NPA 940] [Dial plan for NPA 940]

NXX: 236

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-236 A St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552      
940-236 0 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2017-06-24   
940-236 2 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2020-08-21   
940-236 3 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2020-08-21   
940-236 5 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2021-07-24   
940-236 6 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2022-12-22   
940-236 7 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2021-09-06   
940-236 8 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2021-02-03   
940-236 9 St Jo TX DCTRTXXATMD  903C ONVOY, LLC - TX 552   2021-02-03   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.