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: 480

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-480 A Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 0 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 1 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 2 Altus OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536   2011-09-02   
580-480 3 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 4 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 5 Altus OK OKCYOKMPAMD  5813 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 536      
580-480 6 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 7 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 8 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      
580-480 9 Altus OK ALTSOKMADS0  9533 SOUTHWESTERN BELL 536      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.