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: 833

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-833 A Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      
918-833 0 Tulsa OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538   2005-09-29   
918-833 1 Tulsa OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538   2005-09-29   
918-833 2 Tulsa OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538   2005-09-29   
918-833 3 Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      
918-833 4 Tulsa OK TULUOKSP1MD  6272 UNITED STATES CELLULAR - OK 538   2007-09-30   
918-833 5 Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      
918-833 6 Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      
918-833 7 Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      
918-833 8 Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      
918-833 9 Tulsa OK TULSOKTERSC  9533 SOUTHWESTERN BELL 538      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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