The PRL is built and provided by your carrier, and used when your phone is trying to connect to the nearest cell tower.
It indicates which radio bands, sub-bands, and service provider IDs will be searched for, then allows the phone to connect to the correct tower.
Maybe someone who has had the same problem can help....moved to an area that does not have Verizon cell phone coverage.
On the map it does show coverage beginning approximately 100 ft to the west of me, to the east it is a mile or so, north and south are both a 1/2 mile.
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