It's not just A&A either. I know I'm lucky as I live in an area that's had a relatively new CityFibre XGS-PON install, but I've got 2300Mbps symmetrical and 5000Mbps is coming Q1 this year.

Virgin Media also do Gigabit plus speeds and you can upgrade to symmetrical (they don't seem to advertise this though). That's definitely a household name.