Is there any way to find out whether Zen are currently offering GEA (I.e. a direct backhaul link from Openreach's kit to Zen's) as opposed to WBMC (Openreach to BT Wholesale to Zen) for a given exchange (in particular, mine - ESPER, Perth)?
It doesn't seem to be one of the 200 exchanges with a direct Zen presence, but there are another 270 exchanges for which Openreach terminates the traffic on one of those 200, and I haven't yet found a list of where the NGA handover site is for each exchange, nor a list of the 470 exchanges where Zen use GEA directly as opposed to using WBMC.
(I'm on a WBMC service right now, but was bitten by a backhaul fault last year: it took BT SIX Openreach engineer visits before they finally spotted it was a bad 10G fibre link or port on their Wholesale backbone link in Edinburgh. Being a bit less reliant on that stuff in future would feel nice!)