You're going to have to have ALL of your devices upgraded or reprogrammed to use all ten digits too. This includes alarms, remote modem devices, and other telephony systems.
https://www.news9.com/story/41141788/405-exhausted-okc-metro-to-get-new-area-code
This new area code will be Oklahoma's fifth area code. The first was 405 way back in 1947. Just a few years after that Tulsa got its own area code 918 in 1953. Then, more than 40 years later, as the population in the cities grew the rest of the state split off to become 580 in 1997. Finally, in 2011, 918 got Oklahoma's first overlay code 539.
The code that will overlay here in the metro has already been chosen but Sprague said she can't say what it is; the information is proprietary. The order to allow the overlay also has to be made by the Oklahoma Corporation Commission, officials expect that to happen sometime early 2020.
https://www.news9.com/story/41141788/405-exhausted-okc-metro-to-get-new-area-code
This new area code will be Oklahoma's fifth area code. The first was 405 way back in 1947. Just a few years after that Tulsa got its own area code 918 in 1953. Then, more than 40 years later, as the population in the cities grew the rest of the state split off to become 580 in 1997. Finally, in 2011, 918 got Oklahoma's first overlay code 539.
The code that will overlay here in the metro has already been chosen but Sprague said she can't say what it is; the information is proprietary. The order to allow the overlay also has to be made by the Oklahoma Corporation Commission, officials expect that to happen sometime early 2020.