sensors Mode-S transponder

AE1FE3

ICAO 24-bit transponder address

Currently assigned to 11-72212 · Airbus Helicopters UH-72A Lakota

Hex
AE1FE3
Octal
53417743
Decimal
11,411,427
Tail
11-72212
Type
EC45
No current signal · last broadcast Jul 23, 16:00 UTC
Flights observed
34
Distinct callsigns
5
Country
-
Last broadcast
Jul 23, 16:00 UTC

Last known position

Most recent position reported by Mode-S AE1FE3.

Callsign history 5 distinct

Callsign Airline Flights Last seen
SENTRY2 - 14 2026-07-23
SENTRY7 - 9 2026-07-15
SENTRY6 - 8 2026-07-21
SENTRY1 - 2 2026-07-08
SENTRY5 - 1 2026-07-21

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-07-23 SENTRY2 - Jul 23, 14:35 UTCJul 23, 16:00 UTC1h 25m
2026-07-23 SENTRY2 - Jul 23, 13:10 UTCJul 23, 13:35 UTC25m
2026-07-21 SENTRY6 - Jul 21, 17:20 UTCJul 21, 17:40 UTC20m
2026-07-21 SENTRY6 - Jul 21, 16:00 UTCJul 21, 16:20 UTC20m
2026-07-21 SENTRY5 - Jul 21, 00:25 UTCJul 21, 02:20 UTC1h 55m
2026-07-20 SENTRY2 - Jul 20, 15:25 UTCJul 20, 17:05 UTC1h 40m
2026-07-15 SENTRY7 DAA → DAA Jul 15, 22:20 UTCJul 15, 23:10 UTC50m
2026-07-15 SENTRY2 - Jul 15, 19:30 UTCJul 15, 20:55 UTC1h 25m
2026-07-15 SENTRY2 DAA → DAA Jul 15, 17:30 UTCJul 15, 18:35 UTC1h 5m
2026-07-15 SENTRY2 DAA → DAA Jul 15, 01:45 UTCJul 15, 02:50 UTC1h 5m
2026-07-15 SENTRY2 - Jul 15, 00:25 UTCJul 15, 01:30 UTC1h 5m
2026-07-13 SENTRY2 - Jul 13, 18:40 UTCJul 13, 19:00 UTC20m
2026-07-13 SENTRY2 - Jul 13, 17:40 UTCJul 13, 18:10 UTC30m
2026-07-08 SENTRY1 DAA → DAA Jul 8, 18:35 UTCJul 8, 20:10 UTC1h 35m
2026-07-08 SENTRY7 DAA → DAA Jul 8, 01:10 UTCJul 8, 02:30 UTC1h 20m
2026-07-07 SENTRY6 DAA → DAA Jul 7, 18:20 UTCJul 7, 19:40 UTC1h 20m
2026-07-07 SENTRY6 - Jul 7, 15:55 UTCJul 7, 16:05 UTC10m
2026-07-06 SENTRY1 - Jul 6, 16:00 UTCJul 6, 17:40 UTC1h 40m
2026-07-03 SENTRY7 - Jul 3, 03:30 UTCJul 3, 03:40 UTC10m
2026-07-03 SENTRY7 DAA → MNZ Jul 3, 02:10 UTCJul 3, 03:00 UTC50m
2026-07-03 SENTRY7 - Jul 3, 00:50 UTCJul 3, 02:00 UTC1h 10m
2026-07-03 SENTRY7 - Jul 3, 00:00 UTCJul 3, 00:10 UTC10m
2026-07-02 SENTRY7 - Jul 2, 22:45 UTCJul 2, 23:25 UTC40m
2026-07-02 SENTRY6 - Jul 2, 21:35 UTCJul 2, 21:50 UTC15m
2026-07-02 SENTRY6 DAA → MNZ Jul 2, 19:20 UTCJul 2, 20:40 UTC1h 20m
2026-07-02 SENTRY2 - Jul 2, 03:00 UTCJul 2, 03:45 UTC45m
2026-07-01 SENTRY2 - Jul 1, 23:20 UTCJul 2, 00:45 UTC1h 25m
2026-07-01 SENTRY7 - Jul 1, 00:00 UTCJul 1, 02:20 UTC2h 20m
2026-06-30 SENTRY2 - Jun 30, 01:09 UTCJun 30, 04:00 UTC2h 51m
2026-06-29 SENTRY2 - Jun 29, 18:25 UTCJun 29, 20:09 UTC1h 45m
2026-06-24 SENTRY6 - Jun 24, 17:50 UTCJun 24, 19:44 UTC1h 55m
2026-06-24 SENTRY6 - Jun 24, 15:44 UTCJun 24, 16:14 UTC30m
2026-06-23 SENTRY2 - Jun 23, 22:44 UTCJun 24, 00:05 UTC1h 20m
2026-06-20 SENTRY7 - Jun 20, 13:49 UTCJun 20, 13:59 UTC10m

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 11-72212 page for operator, model, and routing details .

Mode-S AE1FE3 frequently asked

What is Mode-S code AE1FE3?
AE1FE3 is an ICAO 24-bit transponder address. Assigned to 11-72212.
Is AE1FE3 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 16:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE1FE3, octal 53417743, decimal 11,411,427.
What flights does AE1FE3 operate?
Mode-S AE1FE3 has broadcast 5 distinct callsigns, including SENTRY2, SENTRY7, SENTRY6, SENTRY1, SENTRY5.