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: OKCYOKGADS0

Remotes:

Switch Switch name Switch type
OKCYOKCERS0  OKLAHOMA CITY  ORM 
OKCYOKGRRS1  OKLAHOMA CITY  5ER 
OKCYOKNIRS1  OKLAHOMA CITY  5ER 
OKCYOKPNRL0  OKLAHOMA CITY  RSL 
OKCYOKSPRS1  OKLAHOMA CITY  5ER 
OKCYOKVIRS1  OKLAHOMA CITY  ORM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
405-419 A Oklahoma City OK 9533 SOUTHWESTERN BELL 536      
405-424 A Oklahoma City OK 9533 SOUTHWESTERN BELL 536      
405-425 A Oklahoma City OK 9533 SOUTHWESTERN BELL 536      
405-426 A Oklahoma City OK 9533 SOUTHWESTERN BELL 536      
405-427 A Oklahoma City OK 9533 SOUTHWESTERN BELL 536      
405-974 A Oklahoma City OK 9533 SOUTHWESTERN BELL 536      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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