https://checker.ofcom.org.uk/en-gb/broadband-coverage#
The Ofcom checker for one of our properties that recently got upgraded to both Community Fibre and Hyperoptic is reflected in the area...
Networks in your area - Hyperoptic, Openreach, Community Fibre
But the Openreach network availability is vague as it doesn't show what kind of service it is. The way you find out is if the Ultrafast is showing a number next to it and that's indicative of whether it is FTTP.
However, the checker is also wrong to show Virgin Media for another postcode that does not have Virgin Media available. I have just tested with another postcode and it gets that wrong as well. Then checking on Virgin Media website will show "Keep me posted"
The Ofcom checker is not reliable. It can be used as a rough guide. But then it is important to check the postcode for that ISP from the official website to verify if the service is really available.
Also it is possible that some small Altnet FTTP might be available but not shown in this Ofcom checker.
I once had an email from TalkTalk 3 years ago telling me Openreach FTTP is finally available and then I informed them on the forum that that's not true.
Until recently when Community Fibre was available, Uswitch would not show that it is available. Another postcode will show Hyperoptic not available through moneysupermarket but the same postcode will wrongly show Openreach FTTP being available on Uswitch. It will also show Superfast available when there is no FTTC.
These checkers are often getting it wrong. When a service is available, it will not detect that it's available and when a service is unavailable it will show as available!