All months

N-numbers freeing up in May 2031

300 reserved N-numbers have FAA purge dates in May 2031. If the holder doesn't renew before the purge date, the FAA releases the tail back to the public — and anyone can reserve it for $10 a year.

A purge date is a scheduled release, not a guarantee: holders can renew right up to the date. Check any tail on its purge day to see if it actually freed up. From FAA data dated Jul 1, 2026.

May 1, 20312 tails

May 2, 203141 tails

May 3, 20318 tails

May 4, 20316 tails

May 5, 20318 tails

May 6, 20314 tails

May 7, 20313 tails

May 8, 20316 tails

May 9, 203132 tails

May 10, 20311 tail

May 11, 20316 tails

May 12, 20312 tails

May 13, 203110 tails

May 14, 20312 tails

May 15, 203111 tails

May 16, 203121 tails

May 18, 203113 tails

May 19, 20319 tails

May 20, 20317 tails

May 21, 203111 tails

May 22, 20315 tails

May 23, 203129 tails

May 24, 20311 tail

May 25, 20314 tails

May 26, 20318 tails

May 27, 203110 tails

May 28, 203112 tails

May 29, 203113 tails

May 30, 203114 tails

May 31, 20311 tail

Want a specific tail instead?

Check any N-number against the FAA registry and reserved list — instantly see if it's available, taken, or reserved and when it frees up.