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: 417 [Rate centres in NPA 417] [Dial plan for NPA 417]

NXX: 227

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-227 A Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 0 Springfield MO SPFDMOTLX7X  6701 AERIAL COMMUNICATIONS, INC. 522   2006-10-14   
417-227 1 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 2 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 3 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 4 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 5 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 6 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 7 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      
417-227 8 Springfield MO SPFDMOTLX7X  6701 AERIAL COMMUNICATIONS, INC. 522   2004-12-15   
417-227 9 Springfield MO SPFDMOMCRS0  9533 SOUTHWESTERN BELL 522      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.