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: TULSOKRIDS0

Remotes:

Switch Switch name Switch type
KIFROKMARS1  KIEFER  RSC 
SPLPOKMARSC  SAPULPA  RSC 
TULSOKJERSC  TULSA JENKS  RSC 

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-745 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-746 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-747 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 1 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 2 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 3 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 4 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 5 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 6 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 7 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-748 8 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-749 A Tulsa OK 9533 SOUTHWESTERN BELL 538      

<< 1 2

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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