Are you ready? Prepare now for 10-digit dialing in the 405 area code
Now is the time for Oklahomans in the 405 area code to prepare for the change to 10-digit dialing for local calls.
Local calls within the 405 area code now can be made using 7 digits or 10 digits. That will end on April 24, when all local calls within the 405 code will require 10 digits (area code + local number).
The move to 10-digit dialing for local 405 area code calls is necessary to enable the addition of another area code for the area currently served by only 405. The new, additional area code (572) is needed to ensure there will be enough telephone numbers available for the area.
Here is the schedule for local-call 10-digit dialing within the 405 area code and the addition of the 572 area code:
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Currently – Local calls can be made using 7 digits or 10 digits. All devices and systems using telephone numbers should be set and begin using 10 digit dialing for local calls within the 405 area code.
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April 24, 2021 – Mandatory 10 digit dialing begins. All local calls within the 405 area code will require the area code + local number.
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May 24, 2021 – 572 area code added to the area that had been served only by 405.
The addition of the 572 area code will not change existing 405 telephone numbers. Also, there will be no change in the local call boundaries. Local calls within the area will remain local calls, regardless of whether the number called is a 405 or 572 area code.
The area currently served by the 405 area code is the second area in Oklahoma to institute 10 digit dialing. The first was the area served by the 918 area code, which is now served by both the 918 and 539 area codes. 539 was added in 2011.
See map below.
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