Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-421 A McAlester OK MCLSOKMADS0  9533 SOUTHWESTERN BELL 538      
918-421 0 McAlester OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-421 1 McAlester OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      
918-421 2 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 3 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 4 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 5 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 6 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 7 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 8 McAlester OK   9533 SOUTHWESTERN BELL 538      
918-421 9 McAlester OK   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 538      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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