in Germany Vodafone deployed DOCSIS 3.1 partially and while still not symmetric i get 100Mbit/s down and 50Mbit/s up more or less consistently with DOCSIS 3.0 where i live unless something goes wrong (it does sometimes interfere with LTE here). DOCSIS 3.1 is also available with lots of [0]channels using the newer 1024QAM. they offer up to 1Gbit downstream and 50Mbit upstream for about 70€ a month. i also made a [1]screenshot of the channel usage and stats page of the modems web interface.

[0] https://helpdesk.vodafonekabelforum.de/sendb/belegung-11.htm...

[1] https://gist.github.com/mercora/ef66f5bcd95b060ac25269b17cc6...