FlyerTalk Forums - View Single Post - Merger Update: MileagePlus Account Number Update
Old Nov 17, 2011 | 8:26 am
  #6  
star_world
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Join Date: Jan 2001
Location: ORD / DUB / LHR
Programs: UA 1K MM; BA Silver; Marriott Plat
Posts: 8,240
MileagePlus number format

From United's Twitter feed just now:

We’re building a new technology system to integrate the MileagePlus & OnePass membership base. We’ll be changing MileagePlus numbers to 8 characters, so we encourage you, to link your MileagePlus & OnePass accounts if you have both, at http://united.com/linkmyaccounts. Current OnePass numbers will continue to work in the new system. Details are at www.mileageplusmergerupdates.com or www.onepassmergerupdates.com.
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