Fullformexpand.com, 2026. "WTNPA." Accessed April 23, 2026. https://www.fullformexpand.com/wtnpa/wireless-telephone-number-portability-act.
"WTNPA." (n.d.). Fullformexpand.com. Retrieved April 23, 2026, from https://www.fullformexpand.com/wtnpa/wireless-telephone-number-portability-act.
WTNPA. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/wtnpa/wireless-telephone-number-portability-act (Accessed: 23 April 2026).