Looks like cabinet 86? Phase 9b so looks about right - but the only public data is dated December 2011.
What you have just posted is the best public guide to the state of things now, as it seems all lines at your postcode are on that cabinet. Don't be surprised if in the last week of December it changes to 31 March 2013.
Postcode checks are the worst option. If the checker won't accept your phone number, always use the full address, in case not all lines are on the same cabinet. (That's advice for anyone else in your position, and even for you as there may be errors in the December 11 data).
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