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: 405 [Rate centres in NPA 405] [Dial plan for NPA 405]

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-377 A Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 0 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 1 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 2 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 3 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 4 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 5 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 6 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 7 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 8 Stillwater OK STWROKMADS0  9533 SOUTHWESTERN BELL 536      
405-377 9 Stillwater OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.