When I left a previous state, I paid to port the local area code number away from (major cell carrier) over to Google Voice (I've had this number some 20 years

When I left a previous state, I paid to port the local area code number away from (major cell carrier) over to Google Voice (I've had this number some 20 years now). Many of the folks I work with (tech sector) have cell numbers from different states, having moved into this state only for work and some day plan to leave/return to their original home.