Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-638 0 Chula Vista CA   6529 T-MOBILE USA, INC. 732   2006-07-24   
619-638 1 Chula Vista CA   6529 T-MOBILE USA, INC. 732   2006-06-17   
619-638 2 Chula Vista CA   6529 T-MOBILE USA, INC. 732   2006-05-19   
619-638 3 Chula Vista CA   6529 T-MOBILE USA, INC. 732   2006-05-01   
619-638 4 Chula Vista CA   6529 T-MOBILE USA, INC. 732   2006-04-07   
619-638 5 Chula Vista CA   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   6529 T-MOBILE USA, INC. 732   2006-02-28   
619-638 8 Chula Vista CA   649C ONVOY, LLC - CA 732   2006-08-16   
619-638 9 Chula Vista CA   6529 T-MOBILE USA, INC. 732   2006-08-23   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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