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.
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Switch: INOLOKXAPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-543 A Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 0 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 1 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 2 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 3 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 4 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 6 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 7 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      
918-543 8 Inola OK 1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 538      

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

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