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: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
208-940 A Salmon ID BOISIDMAAMD  6010 NEW CINGULAR WIRELESS PCS, LLC 652      
208-940 0 Salmon ID   6010 NEW CINGULAR WIRELESS PCS, LLC 652      
208-940 1 Salmon ID   6010 NEW CINGULAR WIRELESS PCS, LLC 652      
208-940 2 Salmon ID   6010 NEW CINGULAR WIRELESS PCS, LLC 652      
208-940 9 Salmon ID   145J TERRA NOVA TELECOM INC. 652   2026-01-04   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.