In reply to a post by craski:

Understandable but a shame as it shuts down one of the few ways for small communities to glean "accurate" data for their own area.

Agreed, I was mostly using it to check the status of my exchange to I see how poorly BTOR have rolled out fibre on our exchange that should of been 92% fibre back in 2011 - 2012 sadly only about 42% has been done so far.

Paul

Similar reasons to my own.
I used mine to check 2.5k addresses on my exchange which identified that whilst local council was claiming a large percentage of "properties passed" for the exchange, their figures were grossly exaggerated. The reality was that several of the large Huawei cabinets they had installed were only able to provide a fibre based service to less than 50% of the lines connected to them, the rest of the lines were too long for VDSL and were stuck on exchange provided ADSL.

IP block looks like it was a 1 week temporary ban as it is now working again
I wont be running the script again though ...