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: TULSOKTBDS0

Remotes:

Switch Switch name Switch type
COVLOKMARS1  COLLINSVILLE  RSC 
OLGHOKMARS1  OOLOGAH  RSC 
PAWNOKMARS1  PAWNEE  RSC 
PRYROKMARS1  PRYOR  RSC 
RLTNOKMARS1  RALSTON  RSC 
RPLYOKMARS1  RIPLEY  RSC 
SKTKOKMARS1  SKIATOOK  RSC 
YALEOKMARS1  YALE  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
918-551 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-551 0 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-576 A Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-576 0 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-576 2 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-576 5 Tulsa OK 9533 SOUTHWESTERN BELL 538      
918-596 A Tulsa OK 9533 SOUTHWESTERN BELL 538      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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