You know, the one that was deleted for being inactive? Also Do you know the Jonas Brothers IDs? (they were deleted too)"

The usernames "MirandaCosgrove" and "JonasBrothers" have been in use by multiple users over the course of several years. I will assume that you're looking for the IDs of the former celebrity accounts.

MirandaCosgrove's ID was 12850915.

Unfortunately, we do not have access to the "JonasBrothers" ID (if we have the username incorrect, please notify us via the comments).

Update [07/01/2014]: The IDs of the individual Jonas Brothers celebrity accounts were as follows:

JoeJonas: 12267231
KevinJonas: 12263951
NickJonas: 6697274