Apparatus

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sensors Mode-S transponder

3A2E23

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-OLRD · BOEING 777-300ER

Hex
3A2E23
Octal
16427043
Decimal
3,812,899
Country
FR
Tail
F-OLRD
Type
B77W
No current signal · last broadcast Jul 26, 00:05 UTC
Flights observed
144
Distinct callsigns
9
Country
FR
Last broadcast
Jul 26, 00:05 UTC

Last known position

Most recent position reported by Mode-S 3A2E23.

Country allocation

The ICAO 24-bit address 3A2E23 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 9 distinct

Callsign Airline Flights Last seen
REU975 Air Austral 39 2026-07-24
REU974 Air Austral 35 2026-07-24
REU971 Air Austral 19 2026-07-25
REU887 Air Austral 18 2026-07-22
REU972 Air Austral 15 2026-07-25
REU888 Air Austral 10 2026-07-23
REU969 Air Austral 3 2026-06-07
REU885 - 3 2026-06-23
REU9975 - 2 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 REU972 CDG → RUN Jul 25, 21:30 UTCJul 26, 00:05 UTC2h 35m
2026-07-25 REU971 RUN → CDG Jul 25, 14:40 UTCJul 25, 17:55 UTC3h 15m
2026-07-24 REU971 RUN → CDG Jul 24, 18:50 UTCJul 25, 17:55 UTC23h 5m
2026-07-24 REU974 CDG → RUN Jul 24, 17:15 UTCJul 25, 16:45 UTC23h 30m
2026-07-24 REU975 RUN → CDG Jul 24, 03:45 UTCJul 24, 07:00 UTC3h 15m
2026-07-23 REU888 BKK → RUN Jul 23, 02:40 UTCJul 23, 03:20 UTC40m
2026-07-22 REU887 RUN → BKK Jul 22, 22:40 UTCJul 22, 23:30 UTC50m
2026-07-22 REU887 RUN → BKK Jul 22, 00:50 UTCJul 22, 23:30 UTC22h 40m
2026-07-21 REU972 CDG → RUN Jul 21, 22:50 UTCJul 22, 22:45 UTC23h 55m
2026-07-21 REU972 CDG → RUN Jul 21, 22:10 UTCJul 22, 01:00 UTC2h 50m
2026-07-21 REU971 - Jul 21, 14:20 UTCJul 21, 17:50 UTC3h 30m
2026-07-20 REU971 - Jul 20, 18:50 UTCJul 21, 17:50 UTC22h 59m
2026-07-20 REU974 - Jul 20, 17:10 UTCJul 21, 16:45 UTC23h 34m
2026-07-20 REU975 RUN → CDG Jul 20, 00:10 UTCJul 20, 03:30 UTC3h 20m
2026-07-18 REU972 - Jul 18, 21:00 UTCJul 18, 23:45 UTC2h 45m
2026-07-18 REU971 - Jul 18, 14:45 UTCJul 18, 18:00 UTC3h 15m
2026-07-17 REU971 - Jul 17, 18:50 UTCJul 18, 18:00 UTC23h 11m
2026-07-17 REU974 - Jul 17, 17:35 UTCJul 17, 20:25 UTC2h 50m
2026-07-17 REU975 - Jul 17, 00:10 UTCJul 17, 03:25 UTC3h 15m
2026-07-16 REU975 - Jul 16, 02:50 UTCJul 17, 02:45 UTC23h 55m
2026-07-16 REU888 - Jul 16, 02:25 UTCJul 17, 00:45 UTC22h 20m
2026-07-15 REU887 - Jul 15, 22:30 UTCJul 15, 23:15 UTC45m
2026-07-14 REU972 - Jul 14, 22:50 UTCJul 15, 22:45 UTC23h 55m
2026-07-14 REU972 - Jul 14, 21:05 UTCJul 15, 00:25 UTC3h 19m
2026-07-14 REU971 - Jul 14, 14:05 UTCJul 14, 17:55 UTC3h 50m
2026-07-13 REU971 - Jul 13, 18:50 UTCJul 14, 17:55 UTC23h 5m
2026-07-13 REU974 - Jul 13, 17:20 UTCJul 14, 16:45 UTC23h 25m
2026-07-13 REU975 - Jul 13, 01:15 UTCJul 13, 05:05 UTC3h 50m
2026-07-11 REU972 - Jul 11, 20:25 UTCJul 12, 00:15 UTC3h 50m
2026-07-11 REU971 - Jul 11, 14:05 UTCJul 11, 17:25 UTC3h 20m
2026-07-10 REU971 - Jul 10, 18:50 UTCJul 11, 17:25 UTC22h 35m
2026-07-10 REU974 - Jul 10, 17:25 UTCJul 11, 16:45 UTC23h 20m
2026-07-10 REU975 - Jul 10, 03:55 UTCJul 10, 07:05 UTC3h 10m
2026-07-09 REU888 - Jul 9, 02:30 UTCJul 9, 03:05 UTC35m
2026-07-08 REU887 - Jul 8, 22:45 UTCJul 8, 23:30 UTC45m
2026-07-07 REU972 - Jul 7, 22:50 UTCJul 8, 22:45 UTC23h 55m
2026-07-07 REU972 - Jul 7, 21:10 UTCJul 7, 23:55 UTC2h 45m
2026-07-07 REU971 - Jul 7, 14:10 UTCJul 7, 18:00 UTC3h 50m
2026-07-06 REU971 - Jul 6, 18:50 UTCJul 7, 18:00 UTC23h 10m
2026-07-06 REU974 CDG → RUN Jul 6, 17:30 UTCJul 6, 20:10 UTC2h 40m
2026-07-06 REU975 - Jul 6, 02:30 UTCJul 6, 05:50 UTC3h 20m
2026-07-04 REU972 - Jul 4, 21:15 UTCJul 4, 23:55 UTC2h 40m
2026-07-04 REU971 - Jul 4, 14:05 UTCJul 4, 17:55 UTC3h 50m
2026-07-03 REU971 - Jul 3, 21:00 UTCJul 4, 17:55 UTC20h 55m
2026-07-03 REU971 - Jul 3, 18:50 UTCJul 4, 17:55 UTC23h 5m
2026-07-03 REU974 CDG → RUN Jul 3, 17:20 UTCJul 4, 16:45 UTC23h 25m
2026-07-03 REU975 - Jul 3, 00:45 UTCJul 3, 03:55 UTC3h 10m
2026-06-30 REU974 CDG → RUN Jun 30, 21:20 UTCJul 1, 01:15 UTC3h 55m
2026-06-29 REU975 - Jun 29, 23:39 UTCJun 30, 03:40 UTC4h 1m
2026-06-28 REU974 CDG → RUN Jun 28, 17:30 UTCJun 28, 21:20 UTC3h 50m

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-OLRD page for operator, model, and routing details .

Mode-S 3A2E23 frequently asked

What is Mode-S code 3A2E23?
3A2E23 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-OLRD.
Where is Mode-S 3A2E23 registered?
Mode-S code 3A2E23 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3A2E23 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 00:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3A2E23, octal 16427043, decimal 3,812,899.
What flights does 3A2E23 operate?
Mode-S 3A2E23 has broadcast 9 distinct callsigns, including REU975, REU974, REU971, REU887, REU972.