The 405 area code is located in the state of Oklahoma, and according to Intelius data, covers roughly 948,563 phone numbers and 1,302,261 listings across 793 prefixes.
This is a General Purpose Code, in service since January 1, 1947.
Area code 405 is part of an overlay complex shared with:
Local calls within area code 405 require 10 digits dialing, while long-distance calls require 1 plus 10 digits dialing.
Have you received a call from a number with a 405 area code? Figure out who is calling you by performing a reverse phone lookup search. Intelius can provide you with a phone report that includes (when available) original line type and carrier, the number owner’s name, last known address and past addresses, age, possible relatives, and more.
| County Population (2025) | 303,973 |
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| County Population (2025) | 822,125 |
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| County Population (2025) | 46,794 |
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| County Population (2025) | 83,889 |
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