Long time, err'one.
I sent (well, my daughter) sent the IMEI, etc. to the unlock request site for AT&T. We received "order confirmations" on them, and have "approvals" to unlock 2 of 3 of them (one might be a friend's who gave it to us or something).
Unfortunately, I have no idea which order number is associated with which phones, since they don't indicate any information on the confirmation emails.
The phones are wiped and older (3G, 3GS) so we don't use them. The process seems simple enough, just plug them in and backup, and it will be unlocked (not sure if that's actually the process). But is there any way at all to verify (easily, hopefully) that any of them are unlocked?