Earlier this month, T-Mobile confirmed that it had added low-band LTE to hundreds of cell sitesacross the U.S. Now T-Mo says that it’s rolled out even more low-band LTE, this time focusing specifically on Puerto Rico.
T-Mobile CTO Neville Ray has announced that T-Mo has added low-band LTE to several cities in Puerto Rico in the last few weeks. This low-band LTE expansion includes both 600MHz and 700MHz coverage.
Some of the cities included in this expansion include Camuy, Yauco, Utuado, and San Juan
Source: https://www.tmonews.com/2018/09/t-mobile-adds-low-band-lte-cities-puerto-rico/