Wireless Number Portability (WNP)
Definition - What does Wireless Number Portability (WNP) mean?
Wireless number portability (WNP) is a service that enables a consumer to switch between wireless service providers while keeping an existing number. It is used to allow users to maintain the same mobile or wireless number within a specific region, city or country, regardless of the service provider.
Wireless number portability is also called mobile number portability (MNP).
Techopedia explains Wireless Number Portability (WNP)
Some service providers might also require electronic serial numbers (ESN) and mobile equipment identifiers (MEI). In most cases, the user/subscriber can also keep an existing wireless number and the mobile network code when subscribing with the new provider.