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: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-821 A Elk City OK EKCYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-821 0 Elk City OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-821 1 Elk City OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-821 2 Elk City OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-821 3 Elk City OK EKCYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-821 4 Elk City OK OKCYOKMTG01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 536      
580-821 5 Elk City OK EKCYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-821 6 Elk City OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-821 7 Elk City OK   5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-821 8 Elk City OK EKCYOKMARS1  9533 SOUTHWESTERN BELL 536      
580-821 9 Elk City OK OKCYOKCEXMZ  145J TERRA NOVA TELECOM INC. 536      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.