T-Mobile's 28GHz Plan and a little on Verizon's March 06, 2019 08:16
Several articles have come out since Mobile World Congress (MWC) where T-Mobile has discussed their 5G millimeter wave plans. Below is a map that shows the amount 28GHz (L1 channel) currently controlled by T-Mobile. This is one of the two 28GHz channels licensed for mobile use. County-level spectrum depth outputs for this map were taken from our Company Analysis Module which is part of the Millimeter Wave - Spectrum Ownership Analysis Tool.
It is important to note that the L1 maximum channel size is 425MHz and wherever T-Mobile owns 28GHz spectrum, the remainder of the L1 and L2 channels are owned by Verizon. The only exception to this is Ohio, where the spectrum not controlled by T-Mobile is leased to First Communications.
Another way to look at T-Mobile's 28GHz deployment plan is comparing their available spectrum depth in each of the Top 10 Cellular Market Areas (CMA). This is seen below from our CMA Market Analysis module, which is part of the Millimeter Wave - Spectrum Ownership Analysis Tool.
The New York CMA provides an interesting example where T-Mobile's spectrum ownership in the most populated New York counties has significantly decreased the available channel size for Verizon. This data is taken from our Spectrum Grid module, which is part of the Millimeter Wave - Spectrum Ownership Analysis Tool.
As you can see above, T-Mobile's spectrum ownership in the Bronx, King, New York, Putnam, Queens, Richmond, Rockland, and Westchester counties sits in the middle of the 425MHz channel reducing Verizon's maximum channel size to 260MHz.