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: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-497 A Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-497 0 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-24   
346-497 1 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-24   
346-497 2 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-24   
346-497 3 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-24   
346-497 4 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-24   
346-497 5 Spring TX HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-24   
346-497 6 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-12-12   
346-497 7 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-10-18   
346-497 8 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-10-18   
346-497 9 Spring TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-10-18   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.