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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-407 A Wimberley TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-03-03   
737-407 8 Wimberley TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-03-03   
737-407 9 Wimberley TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2025-03-03   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.