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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
Broadcasting now · callsign REU971 · 36,000 ft
Flights observed
118
Distinct callsigns
9
Country
FR
Last broadcast
37m ago

Current position

3A2E23 is currently broadcasting. Map zoomed to live position.

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 - 35 2026-07-13
REU974 - 32 2026-07-13
REU887 - 15 2026-07-08
REU971 - 11 2026-07-11
REU972 - 9 2026-07-11
REU888 - 8 2026-07-09
REU969 Air Austral 3 2026-06-07
REU885 - 3 2026-06-23
REU9975 - 2 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 REU974 - Jul 13, 17:20 UTCJul 14, 14:45 UTC21h 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
2026-06-28 REU975 - Jun 28, 00:25 UTCJun 28, 03:25 UTC3h 0m
2026-06-26 REU974 CDG → RUN Jun 26, 17:35 UTCJun 26, 21:15 UTC3h 40m
2026-06-26 REU975 - Jun 26, 00:20 UTCJun 26, 03:20 UTC3h 0m
2026-06-25 REU888 - Jun 25, 02:14 UTCJun 26, 00:45 UTC22h 30m
2026-06-24 REU887 - Jun 24, 22:45 UTCJun 24, 23:24 UTC40m
2026-06-24 REU887 - Jun 24, 02:49 UTCJun 24, 23:24 UTC20h 35m
2026-06-24 REU887 - Jun 24, 02:30 UTCJun 24, 23:24 UTC20h 55m
2026-06-23 REU885 - Jun 23, 22:55 UTCJun 23, 23:39 UTC45m
2026-06-22 REU974 CDG → RUN Jun 22, 17:29 UTCJun 22, 20:19 UTC2h 50m
2026-06-22 REU975 - Jun 22, 00:24 UTCJun 22, 03:24 UTC3h 0m
2026-06-20 REU974 CDG → RUN Jun 20, 17:34 UTCJun 20, 20:25 UTC2h 50m
2026-06-19 REU975 - Jun 19, 23:19 UTCJun 20, 03:29 UTC4h 10m
2026-06-18 REU974 CDG → RUN Jun 18, 17:21 UTCJun 18, 20:05 UTC2h 44m
2026-06-15 REU975 - Jun 15, 23:54 UTCJun 16, 03:25 UTC3h 30m
2026-06-14 REU974 CDG → RUN Jun 14, 17:15 UTCJun 14, 20:05 UTC2h 50m
2026-06-14 REU975 - Jun 14, 00:15 UTCJun 14, 03:30 UTC3h 15m
2026-06-12 REU974 CDG → RUN Jun 12, 17:30 UTCJun 12, 20:40 UTC3h 10m
2026-06-12 REU975 RUN → CDG Jun 12, 01:15 UTCJun 12, 04:25 UTC3h 10m
2026-06-11 REU975 RUN → CDG Jun 11, 02:50 UTCJun 12, 02:45 UTC23h 55m
2026-06-11 REU888 BKK → RUN Jun 11, 02:30 UTCJun 11, 03:00 UTC30m
2026-06-10 REU887 RUN → BKK Jun 10, 22:35 UTCJun 10, 23:15 UTC40m
2026-06-09 REU974 CDG → RUN Jun 9, 17:25 UTCJun 9, 20:05 UTC2h 40m
2026-06-09 REU975 RUN → CDG Jun 9, 00:30 UTCJun 9, 03:30 UTC3h 0m
2026-06-07 REU974 CDG → RUN Jun 7, 17:20 UTCJun 7, 21:00 UTC3h 40m
2026-06-07 REU969 RUN → CDG Jun 7, 02:30 UTCJun 7, 06:25 UTC3h 55m
2026-06-05 REU974 CDG → RUN Jun 5, 17:50 UTCJun 5, 20:35 UTC2h 45m

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?
Yes. Mode-S 3A2E23 is currently airborne.
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, REU887, REU971, REU972.