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: 208 [Rate centres in NPA 208] [Dial plan for NPA 208]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
208-403 A Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 0 Idaho Falls ID BOISIDMAX2X  7558 LEVEL 3 COMMUNICATIONS, LLC - ID 652   2008-05-15   
208-403 1 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 2 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 3 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 4 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 5 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 6 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 7 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 8 Idaho Falls ID PCTLID262MD  6529 T-MOBILE USA, INC. 652      
208-403 9 Idaho Falls ID BOISIDVP0MD  5562 METROPCS, INC. 652      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.