I've been following these exchanges...
I would expect the next batch to be announced soon after the New Year for March to June 2013 AND to include the first set of BDUK sites.
This is based on the fact that the existing Future exchanges contain a LOT of little exchanges in Yorkshire that is the first BDUK contract to start delivering.
That's true, but it's really only North
Yorkshire ones so far.
If you know the districts you can filter on them, otherwise start by "begins with" MY or NE, (NE includes some that should be in a different bid). I think it is 134 exchanges which must be most of those left in Yorkshire. 73 in 2013 and 61 in 2104.
Yup. North Yorkshire (incl York) have only had 18 exchanges in the commercial roll-out so far, and only 12 of these have gone live.
By my counts (done by checking the map, rather than the region prefix), there are another 120 exchanges within North Yorkshire that haven't been announced, but that do appear in the latest (public) Openreach lists - 10 'coming soon' in March 2013, 53 'future exchanges' in 2013 and 56 in 2014. Most of these have the MY prefix (note, this prefix is shared with other parts of Yorkshire), but some do have NE prefixes.
But that isn't the end of it. There are some exchanges outside the county that look like they probably serve customers within the county too. Some commercial ones already open (4), but there are 9 exchanges that also haven't been on previous announcements, so are quite likely to be also BDUK-funded: 5 in East Yorkshire, 2 in Darlington and 2 in Leeds (West Yorkshire) - even though those regions haven't started yet.
In fact having browsed the Openreach map it looks like there are only a few tiny exchanges not listed, these may be all EO lines so would be at the very end if at all.
Only 8 exchanges, with an average size of, I think, 275 lines.