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: 580 [Rate centres in NPA 580] [Dial plan for NPA 580]

NXX: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-497 A Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 0 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 1 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 2 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 3 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 4 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 5 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 6 Cheyenne OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-497 7 Cheyenne OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-497 8 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      
580-497 9 Cheyenne OK CHYNOKXADS0  1988 DOBSON TEL. CO. 536      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.