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: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
580-558 A Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536      
580-558 0 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 1 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 2 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 3 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 4 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 5 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 6 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 7 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 8 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   
580-558 9 Lawton OK LWTNOKTBDS0  9533 SOUTHWESTERN BELL 536   2009-03-08   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.