N600SZ is reserved. Fee-paid reservation held by Donald Barbour — if it isn't renewed, the FAA releases it on Sep 15, 2026 (in about 2 months).
Reserved by an individual or company; a renewal notice has been sent.
Reservations lapse more often than you'd think. Check back around Sep 15, 2026 — if the holder doesn't renew, it becomes available. See everything scheduled to free up in September 2026.
Tails one nudge away from N600SZ that aren't assigned or reserved: