Apparatus

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sensors Mode-S transponder

3A3A20

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-OORA

Hex
3A3A20
Octal
16435040
Decimal
3,815,968
Country
FR
Tail
F-OORA
Type
AT72
No current signal · last broadcast 5h ago
Flights observed
478
Distinct callsigns
20
Country
FR
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 3A3A20.

Country allocation

The ICAO 24-bit address 3A3A20 falls within the block assigned to France (FR) by ICAO Annex 10, Volume III. Every aircraft registered in France receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
NTR964 - 77 2026-07-13
NTR914 - 38 2026-07-09
NTR957 - 34 2026-07-11
NTR940 TNT International Aviation 31 2026-06-30
NTR912 - 24 2026-07-14
NTR716 - 24 2026-07-01
NTR701 - 24 2026-07-11
NTR178 - 23 2026-07-12
NTR915 - 19 2026-07-10
NTR723 - 18 2026-06-22
NTR179 - 17 2026-07-11
NTR963 - 16 2026-07-12
NTR972 - 12 2026-06-27
NTR144 TNT International Aviation 11 2026-07-13
NTR921 - 7 2026-07-11
NTR918 - 7 2026-07-11
NTR722 - 6 2026-05-28
NTR145 TNT International Aviation 6 2026-07-13
NTR724 - 5 2026-07-13
NTR5712 - 5 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 NTR912 - Jul 14, 01:35 UTCJul 14, 02:00 UTC25m
2026-07-13 NTR912 - Jul 13, 23:10 UTCJul 14, 00:00 UTC50m
2026-07-13 NTR964 - Jul 13, 21:30 UTCJul 13, 21:45 UTC15m
2026-07-13 NTR964 - Jul 13, 19:30 UTCJul 13, 19:55 UTC25m
2026-07-13 NTR145 RFP → PPT Jul 13, 17:55 UTCJul 13, 18:15 UTC20m
2026-07-13 NTR144 PPT → RFP Jul 13, 16:45 UTCJul 13, 17:05 UTC20m
2026-07-13 NTR135 - Jul 13, 04:30 UTCJul 13, 04:55 UTC25m
2026-07-13 NTR134 - Jul 13, 03:30 UTCJul 13, 03:50 UTC20m
2026-07-13 NTR724 - Jul 13, 01:35 UTCJul 13, 02:30 UTC55m
2026-07-12 NTR724 - Jul 12, 22:50 UTCJul 12, 23:30 UTC40m
2026-07-12 NTR166 - Jul 12, 21:20 UTCJul 12, 21:40 UTC20m
2026-07-12 NTR963 - Jul 12, 20:01 UTCJul 12, 20:15 UTC15m
2026-07-12 NTR963 - Jul 12, 17:50 UTCJul 12, 18:20 UTC30m
2026-07-12 NTR178 - Jul 12, 06:15 UTCJul 12, 06:35 UTC20m
2026-07-12 NTR178 - Jul 12, 04:40 UTCJul 12, 04:50 UTC10m
2026-07-12 NTR233 - Jul 12, 02:50 UTCJul 12, 03:40 UTC50m
2026-07-12 NTR232 - Jul 12, 01:30 UTCJul 12, 02:15 UTC45m
2026-07-11 NTR921 - Jul 11, 23:55 UTCJul 12, 00:15 UTC20m
2026-07-11 NTR921 - Jul 11, 22:01 UTCJul 11, 22:25 UTC25m
2026-07-11 NTR701 - Jul 11, 20:25 UTCJul 11, 21:10 UTC45m
2026-07-11 NTR701 - Jul 11, 19:30 UTCJul 11, 19:45 UTC15m
2026-07-11 NTR701 - Jul 11, 17:50 UTCJul 11, 18:40 UTC50m
2026-07-11 NTR179 - Jul 11, 07:05 UTCJul 11, 07:30 UTC25m
2026-07-11 NTR178 - Jul 11, 05:31 UTCJul 11, 05:55 UTC25m
2026-07-11 NTR957 - Jul 11, 04:15 UTCJul 11, 04:40 UTC25m
2026-07-11 NTR957 - Jul 11, 02:05 UTCJul 11, 02:25 UTC20m
2026-07-11 NTR918 - Jul 11, 00:00 UTCJul 11, 00:20 UTC20m
2026-07-10 NTR918 - Jul 10, 22:05 UTCJul 10, 22:50 UTC45m
2026-07-10 NTR964 - Jul 10, 21:05 UTCJul 10, 21:25 UTC20m
2026-07-10 NTR964 - Jul 10, 19:05 UTCJul 10, 19:25 UTC20m
2026-07-10 NTR145 RFP → PPT Jul 10, 17:50 UTCJul 10, 18:10 UTC20m
2026-07-10 NTR144 PPT → RFP Jul 10, 16:25 UTCJul 10, 16:45 UTC20m
2026-07-10 NTR179 - Jul 10, 03:30 UTCJul 10, 03:45 UTC15m
2026-07-10 NTR178 - Jul 10, 01:55 UTCJul 10, 02:15 UTC20m
2026-07-10 NTR915 - Jul 10, 00:35 UTCJul 10, 01:05 UTC30m
2026-07-09 NTR915 - Jul 9, 21:55 UTCJul 9, 22:40 UTC45m
2026-07-09 NTR5940 - Jul 9, 18:25 UTCJul 9, 18:40 UTC15m
2026-07-09 NTR5940 - Jul 9, 16:35 UTCJul 9, 16:55 UTC20m
2026-07-09 NTR936 - Jul 9, 05:25 UTCJul 9, 05:45 UTC20m
2026-07-09 NTR936 - Jul 9, 03:10 UTCJul 9, 03:30 UTC20m
2026-07-09 NTR914 - Jul 9, 01:25 UTCJul 9, 01:45 UTC20m
2026-07-08 NTR914 - Jul 8, 23:10 UTCJul 8, 23:55 UTC45m
2026-07-08 NTR964 - Jul 8, 21:55 UTCJul 8, 22:10 UTC15m
2026-07-08 NTR964 - Jul 8, 19:50 UTCJul 8, 20:10 UTC20m
2026-07-08 NTR957 - Jul 8, 05:05 UTCJul 8, 05:30 UTC25m
2026-07-08 NTR957 - Jul 8, 03:15 UTCJul 8, 03:30 UTC15m
2026-07-08 NTR342 - Jul 8, 00:50 UTCJul 8, 02:00 UTC1h 10m
2026-07-07 NTR342 - Jul 7, 17:30 UTCJul 7, 18:20 UTC50m
2026-07-07 NTR179 - Jul 7, 05:45 UTCJul 7, 06:05 UTC20m
2026-07-07 NTR178 - Jul 7, 04:15 UTCJul 7, 04:30 UTC15m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the F-OORA page for operator, model, and routing details .

Mode-S 3A3A20 frequently asked

What is Mode-S code 3A3A20?
3A3A20 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-OORA.
Where is Mode-S 3A3A20 registered?
Mode-S code 3A3A20 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3A3A20 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3A3A20, octal 16435040, decimal 3,815,968.
What flights does 3A3A20 operate?
Mode-S 3A3A20 has broadcast 20 distinct callsigns, including NTR964, NTR914, NTR957, NTR940, NTR912.