Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   6701 AERIAL COMMUNICATIONS, INC. 522   2006-10-14   
417-227 1 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 2 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 3 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 4 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 5 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 6 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 7 Springfield MO   9533 SOUTHWESTERN BELL 522      
417-227 8 Springfield MO   6701 AERIAL COMMUNICATIONS, INC. 522   2004-12-15   
417-227 9 Springfield MO   9533 SOUTHWESTERN BELL 522      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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