The site and the lists are pretty accurate though with the BDUK work coming online the number of exchanges does increase so their could be a few errors.

Which exchange is it and is it part of the commercial rollout or a BDUK project?

Yep, think for sure it is just the fact that the local council here has signed up with BT for BDUK funding that my tiny 230 line exchange is now in the UE state. With 2 well placed cabinets this could turn most of these EO lines into very short VDSL lines ... but will they do it?

It's Hawkinge in Kent.
NGA email confirmed it is part of the BDUK rollout.

Seems to be well ahead of the BDUK planning in Kent though.
Work has been going on for a couple of months now.

Its quite common and has been seen across alot of the signed BDUK projects, the exchanges outside of the main urban areas are first for deployment as the network expands outwards into the semi rual/rural areas.

These areas are seen as easy wins, along with cabinet infill on already enabled exchanges to boost coverage numbers, before the main task of pushing further out into the counties.