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: 619 [Rate centres in NPA 619] [Dial plan for NPA 619]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
619-638 A Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732      
619-638 0 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-07-24   
619-638 1 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-06-17   
619-638 2 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-05-19   
619-638 3 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-05-01   
619-638 4 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-04-07   
619-638 5 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-03-31   
619-638 6 Chula Vista CA   5562 METROPCS, INC. 732   2006-02-27   
619-638 7 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-02-28   
619-638 8 Chula Vista CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2006-08-16   
619-638 9 Chula Vista CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2006-08-23   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.