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: TULSOKWODS0

Remotes:

Switch Switch name Switch type
TULSOKTBRS0  TULSA  ORM 
TULSOKTERSE  TULSA  DRL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-237 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-477 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-481 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-488 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-491 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-492 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-493 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-494 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-495 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-496 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-497 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-499 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-502 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-523 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-524 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-730 A Tulsa OK 9533 SOUTHWESTERN BELL 538      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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