In message , at
15:49:25 on Mon, 26 Aug 2013, John Rumm
remarked:
Most ISPs will have the full postal address for each of their customers
- after all they want some assurance of collecting payment. They will
normally be ale to relate either a static IP, or if the time of the
connection is known, a dynamic IP to the relevant customer.

However to get that information out of them should require a court
order

Ahem! RIPA has been in place over ten years now, and only requires a
senior enough manager's signature, in whatever public authority or
police force claims to require the data.
--
Roland Perry