I am in a position where my home in Canada has only Rogers cable Internet but the home across the small major street (1 lane each way without a divider) has fiber from the other duopoly provider Bell. I called Bell over the years and they just gave me the “we don’t have Internet in your area yet” even though their online lookup service via postal code said it did. Last year, I politely lost my temper and asked the customer service representative for an escalation since it had been 12 years that my family and I have been at this address so what is going on. I was put transferred twice while being put on hold each time and having to repeat my account each time. Eventually, I was transferred to someone in a department that actually had a reason, but it still required digging. Apparently, the builder of my family’s home here made a deal with Rogers to be the exclusive Internet provider.
I planned on calling the CRTC after (Canada’s FCC), but I got tired and I have been dealing with an unrelated medical issue.
[0] https://en.wikipedia.org/w/index.php?title=Canadian_Radio-te...
There are websites like https://broadbandnow.com/California/San-Francisco that might have city-level and/or postal code level information, but I want street-level information. As I said before in different comments related to Internet speeds, I would assume the migration to remote work would make having this information easily accessible when making a home-buying or renting decision.