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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: TULSOKHIRSC

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-445 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-446 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 0 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 2 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 3 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 4 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 5 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 6 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 7 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 8 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-447 9 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-460 A Tulsa OK 9533 SOUTHWESTERN BELL 538      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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