AT&T's Low Band LTE: 700 MHz B and C Block Ownership February 22, 2016 08:30

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Our most recent posts have looked at the low band spectrum that T-Mobile is accumulating, the 700 MHz A-Block.  To see the low band spectrum that AT&T has typically deployed for LTE, we need to look at the 700 MHz B-block and 700 MHz C-block.  With the B-block spectrum, it is clear that AT&T is visually the dominant spectrum holder.  When looking at the licensed population data, this is true as well.

AT&T dominates the licensed population (POPS) numbers as well, accounting for 274 million of the 312 million US States and Territories population.  These population numbers relate to the 2010 Census.  C Spire with 1.4 million licensed POPS and US Cellular (23 million) both have significant spectrum in their regional operations area with the 700 MHz B Block spectrum.

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With the C-block spectrum, AT&T dominates the west coast and southeast but gives way to USCellular and other regional operators in the midwest.

Looking at the licensed population numbers, AT&T has about 15 million more licensed POPS with their C block spectrum than their B block spectrum.  While USCellular has significantly less C block spectrum (6.8 million POPS compared to 22 million POPS).  It is also apparent that T-Mobile has very limited ownership of B-block spectrum (262,000 POPS) and C-block spectrum (119,000 POPS).  Clearly AT&T has the ability to combine their B and C block channels in many markets to create a 10x10 LTE channel.  We will include a map in a future blog detailing AT&T's total 700 MHz (A/B/C) spectrum holdings as well as USCellular's total 700 MHz (A/B/C) spectrum holdings.