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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NPA: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 440

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-440 A Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 0 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 1 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 2 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 3 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 4 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 5 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 6 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 7 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 8 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      
918-440 9 Bartlesville OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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