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: 210 [Rate centres in NPA 210] [Dial plan for NPA 210]

NXX: 594

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-594 A San Antonio TX   903C ONVOY, LLC - TX 566   2024-05-04   
210-594 0 San Antonio TX   903C ONVOY, LLC - TX 566   2024-05-04   
210-594 1 San Antonio TX   903C ONVOY, LLC - TX 566   2024-05-04   
210-594 2 San Antonio TX   903C ONVOY, LLC - TX 566   2024-05-04   
210-594 4 San Antonio TX   490J DISH WIRELESS, LLC 566   2024-05-05   
210-594 5 San Antonio TX   490J DISH WIRELESS, LLC 566   2024-06-13   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.