Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE203E

ICAO 24-bit transponder address

Currently assigned to 13-72303 · Airbus Helicopters UH-72A Lakota

Hex
AE203E
Octal
53420076
Decimal
11,411,518
Tail
13-72303
Type
EC45
No current signal · last broadcast Jul 26, 02:00 UTC
Flights observed
73
Distinct callsigns
6
Country
-
Last broadcast
Jul 26, 02:00 UTC

Last known position

Most recent position reported by Mode-S AE203E.

Callsign history 6 distinct

Callsign Airline Flights Last seen
SENTRY7 - 47 2026-07-18
SENTRY2 - 15 2026-06-18
SENTRY6 - 8 2026-04-28
SENTRY5 - 1 2026-06-30
SENTRY1 - 1 2026-04-29
72303 - 1 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 72303 - Jul 26, 01:50 UTCJul 26, 02:00 UTC10m
2026-07-18 SENTRY7 - Jul 18, 18:15 UTCJul 18, 18:35 UTC20m
2026-07-17 SENTRY7 - Jul 17, 17:30 UTCJul 17, 18:15 UTC45m
2026-07-17 SENTRY7 - Jul 17, 14:04 UTCJul 17, 14:50 UTC45m
2026-07-16 SENTRY7 - Jul 16, 01:15 UTCJul 16, 02:35 UTC1h 20m
2026-07-14 SENTRY7 - Jul 14, 13:50 UTCJul 14, 14:35 UTC45m
2026-06-30 SENTRY5 - Jun 30, 18:00 UTCJun 30, 18:20 UTC20m
2026-06-19 SENTRY7 - Jun 19, 02:04 UTCJun 19, 02:59 UTC55m
2026-06-19 SENTRY7 - Jun 19, 00:55 UTCJun 19, 01:45 UTC50m
2026-06-18 SENTRY2 - Jun 18, 18:15 UTCJun 18, 18:50 UTC35m
2026-06-18 SENTRY2 DAA → DAA Jun 18, 17:21 UTCJun 18, 18:05 UTC44m
2026-06-18 SENTRY2 - Jun 18, 01:40 UTCJun 18, 03:00 UTC1h 20m
2026-06-17 SENTRY2 - Jun 17, 21:45 UTCJun 17, 23:15 UTC1h 30m
2026-06-17 SENTRY7 - Jun 17, 00:45 UTCJun 17, 02:05 UTC1h 20m
2026-06-16 SENTRY2 - Jun 16, 18:55 UTCJun 16, 20:05 UTC1h 11m
2026-06-16 SENTRY7 - Jun 16, 01:55 UTCJun 16, 02:29 UTC35m
2026-06-16 SENTRY7 DAA → DAA Jun 16, 00:10 UTCJun 16, 01:15 UTC1h 5m
2026-06-15 SENTRY7 DAA → DAA Jun 15, 18:55 UTCJun 15, 20:30 UTC1h 35m
2026-06-15 SENTRY7 DAA → DAA Jun 15, 16:40 UTCJun 15, 17:04 UTC25m
2026-06-14 SENTRY7 - Jun 14, 22:40 UTCJun 14, 23:50 UTC1h 10m
2026-06-14 SENTRY7 - Jun 14, 21:20 UTCJun 14, 22:00 UTC40m
2026-06-14 SENTRY7 - Jun 14, 18:30 UTCJun 14, 19:50 UTC1h 20m
2026-06-14 SENTRY7 - Jun 14, 17:05 UTCJun 14, 17:35 UTC30m
2026-06-14 SENTRY7 - Jun 14, 15:50 UTCJun 14, 16:20 UTC30m
2026-06-13 SENTRY7 - Jun 13, 22:00 UTCJun 13, 22:10 UTC10m
2026-06-13 SENTRY7 - Jun 13, 20:25 UTCJun 13, 21:00 UTC35m
2026-06-13 SENTRY7 - Jun 13, 19:35 UTCJun 13, 19:55 UTC20m
2026-06-13 SENTRY7 - Jun 13, 18:20 UTCJun 13, 18:30 UTC10m
2026-06-13 SENTRY7 - Jun 13, 16:00 UTCJun 13, 16:25 UTC25m
2026-06-12 SENTRY7 - Jun 12, 19:40 UTCJun 12, 20:00 UTC20m
2026-06-06 SENTRY7 - Jun 6, 16:10 UTCJun 6, 16:34 UTC25m
2026-06-05 SENTRY7 - Jun 5, 21:30 UTCJun 5, 21:50 UTC20m
2026-06-05 SENTRY7 - Jun 5, 16:55 UTCJun 5, 17:25 UTC30m
2026-06-05 SENTRY7 - Jun 5, 15:45 UTCJun 5, 16:00 UTC15m
2026-06-04 SENTRY7 - Jun 4, 21:50 UTCJun 4, 22:05 UTC15m
2026-06-04 SENTRY7 - Jun 4, 20:05 UTCJun 4, 21:00 UTC55m
2026-06-04 SENTRY7 - Jun 4, 16:50 UTCJun 4, 18:10 UTC1h 20m
2026-06-03 SENTRY7 - Jun 3, 20:35 UTCJun 3, 20:55 UTC20m
2026-06-03 SENTRY7 - Jun 3, 18:45 UTCJun 3, 19:00 UTC15m
2026-06-03 SENTRY7 - Jun 3, 15:35 UTCJun 3, 16:15 UTC40m
2026-06-03 SENTRY7 - Jun 3, 01:40 UTCJun 3, 02:35 UTC55m
2026-06-03 SENTRY7 DAA → DAA Jun 3, 00:15 UTCJun 3, 01:25 UTC1h 10m
2026-06-02 SENTRY2 - Jun 2, 00:20 UTCJun 2, 02:05 UTC1h 45m
2026-06-01 SENTRY2 - Jun 1, 19:55 UTCJun 1, 21:40 UTC1h 45m
2026-05-29 SENTRY2 - May 29, 19:25 UTCMay 29, 20:30 UTC1h 5m
2026-05-29 SENTRY7 DAA → DAA May 29, 00:55 UTCMay 29, 02:45 UTC1h 50m
2026-05-28 SENTRY7 DAA → DAA May 28, 21:40 UTCMay 28, 23:30 UTC1h 50m
2026-05-27 SENTRY7 DAA → DAA May 27, 22:30 UTCMay 27, 23:40 UTC1h 10m
2026-05-27 SENTRY7 - May 27, 21:05 UTCMay 27, 22:10 UTC1h 5m
2026-05-27 SENTRY7 - May 27, 02:44 UTCMay 27, 02:54 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 13-72303 page for operator, model, and routing details .

Mode-S AE203E frequently asked

What is Mode-S code AE203E?
AE203E is an ICAO 24-bit transponder address. Assigned to 13-72303.
Is AE203E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 02:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE203E, octal 53420076, decimal 11,411,518.
What flights does AE203E operate?
Mode-S AE203E has broadcast 6 distinct callsigns, including SENTRY7, SENTRY2, SENTRY6, SENTRY5, SENTRY1.