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.

Switch: LYBKNMXCRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
575-568 A Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 0 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 1 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 2 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 3 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 4 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 5 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 8 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      
575-568 9 Lybrook NM 1193 VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW 664      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.