In this Heise News article I found that Vodafone will start using the 700 MHz block that was freed when DVB-T analog was shut down.
The tech data on the FP3 list these LTE bands: 1, 2, 3, 4, 5, 7, 8, 13, 20, 26. Band 13 is in the 700 Mhz range (746–756 and 777–787). The other band in the 700 MHz range are 12, 14, 17, 28, 29, 44, 67 and 68. I did not find out which bands Vodafone will be using.
Since I live out in the country, this is quite interesting. Does anybody have more precise information about the band(s) Vodafone Germany will be using, and what this means for the FP3?
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Update: I found some information about the band Vodafone will be using in DE. Seems to be band 28 in LTE and n70 in 5G.