Bluegrass Wireless coverage now shows as native Verizon 4G on Verizons coverage map; should allow Visible users access. Visible coverage map is not updated to show this yet. : r/Visible
FCC Puts Out Its First Mobile Coverage Maps: Why They Differ From Carrier Maps | PCMag
T-Mobile | Internet Service | BroadbandNow
Sprint Coverage Map Updated 3/21/17 : r/Sprint
4G map LTE World Coverage Map - LTE WiMAX HSPA 3G GSM Country List