I'm online with a DL260, and if I enter V20000 or above in a Data View, it displays four question marks as the status (and in the edits column as well).
If I enter V17770, it accepts that, then if I continuously hit Ctrl-Enter, it adds registers to the Data View up to V17777, then stops adding.
260's have registers contiguously from V10000 all the way to V37777 (and the application does work, which relies on registers up to about V34040 or so).