BT Wholesale Availability Checker (address checker, as phone number not recognised) says "Your address has been successfully matched; however we cannot determine ADSL availability at this address."
Not sure why my home is uniquely not recognised / singled out for non-availability,
The addresses in the BTW checker are sourced from 2 places:
- BT's own internal database of premises they have provided service to. These addresses are known as "gold key"
- The PAF - Post Office Address File. These addresses are known as "silver key".
A "silver key" address can be used to order a service from BTW/Openreach, but it will be subject to a survey for them to check whether they can really provide the service. The address will only turn "gold key" when a service is activated.
Until a service is activated, they cannot provide a speed estimate (*)
There are plenty of addresses in the checker that return a result like this. If you put just the postcode into that address checker, it will return a dropdown list of all addresses in the postcode.
If you look at the order of the properties in the list, you can see that they *almost* follow a strict order (1, then 10, 11, ..., 19, 2, 20, 21, ... 29, 3, 30, 31, ... 39, etc). However, they list all the gold addresses first (following the order) then include all the silver addresses (restarting the order).
Your address will be in the bottom part of the list.
(*) - Not quite true. They do include a speed estimate for *some* silver addresses. I Haven't figured out why yet.