Is that registration taken?

Type a Canadian mark and find out whether an aircraft is flying under it today. Straight from the Transport Canada register, current to July 27, 2026.

How much room is left

Three letters follow the block letter, so each block holds 26 × 26 × 26 = 17,576 possible marks. 33,599 are in use across all three and 19,129 have never been issued or have since come free.

13,447
C-F··· in use of 17,576
13,405
C-G··· in use of 17,576
6,747
C-I··· in use of 17,576
Common questions

Can I pick my own aircraft registration in Canada?

You can ask for a specific mark. Transport Canada decide whether you get it, and they can reserve marks in advance for a fee. A mark that no aircraft currently holds is worth asking about, but it is not automatically yours.

What do Canadian registration marks look like?

Canadian aircraft carry C- followed by four letters, in three blocks: C-F, C-G and C-I. C-I is used for ultralights. Older aircraft may still wear the pre-1974 CF- style, written as CF-ABC, which is the same mark as C-FABC.

How long does a cancelled registration stay unavailable?

Transport Canada hold a cancelled mark before it can be reissued, so a mark that has just come off the register is not immediately free. Confirm with Transport Canada rather than assuming; this tool reads the current register, not their reservation list.

Are any Canadian registration blocks running out?

Each of C-F, C-G and C-I holds 17,576 combinations, since three letters follow the block letter. The counts on this page show how many of each are in use today, and C-G is the most heavily used of the three.

Looking up an aircraft rather than a mark? The registration lookup gives the full record for any Canadian aircraft, and where aircraft are based shows what is flying from your field.

Canadian Civil Aircraft Register, current to July 27, 2026. Aircraft data reproduced and distributed with the permission of the Government of Canada. This page reads the current register only. It is not Transport Canada's reservation list, and MarketPlane.ca is not affiliated with Transport Canada.