Find any 572- phone number in Oklahoma

The 572 area code is one of Oklahoma's five area codes. It was established in 2021, as part of an overlay system with area code 918, which covers the northeastern part of the state. The overlay system allows one area to serve two distinct regions, both of which are surrounded by the same telephone number plan. This effectively increases the number of available telephone numbers by allowing each region to have its own area code, while still maintaining enough number combinations for all the phones in the region.

The North American Numbering Plan (NANP) assigns three-digit area codes to regions as part of a ten-digit telephone number. This plan is used in Canada, the United States and some Caribbean countries. The 572 area code is preceded by a 1, generally used for long-distance calls, and followed by the seven-digit subscriber number. Without the 1, all telephone calls within the 572 area code must dial the seven-digit number. All telephone calls outside the 572 area must dial the 1, followed by the area code and the seven-digit subscriber number. This system is in place to ensure customer dialing accuracy and reduce long-distance charges.