Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE74B6

ICAO 24-bit transponder address

Currently assigned to 22-21234 · Sikorsky HH-60M Black Hawk

Hex
AE74B6
Octal
53472266
Decimal
11,433,142
Tail
22-21234
Type
H60
No current signal · last broadcast 12d ago
Flights observed
77
Distinct callsigns
10
Country
-
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S AE74B6.

Callsign history 10 distinct

Callsign Airline Flights Last seen
R21234 - 28 2026-06-10
BOREAL5 - 14 2026-07-01
LICHEN8 - 11 2026-06-29
LICHEN9 - 9 2026-06-26
21234 - 4 2026-07-01
LICHEN5 - 3 2026-06-30
BOREAL9 - 3 2026-06-22
LICHEN6 - 2 2026-04-14
LICHEN4 - 2 2026-05-06
BOREAL2 - 1 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-01 BOREAL5 FBK → FBK Jul 1, 19:20 UTCJul 1, 19:25 UTC5m
2026-07-01 BOREAL5 FBK → FBK Jul 1, 18:55 UTCJul 1, 19:10 UTC15m
2026-07-01 BOREAL5 - Jul 1, 18:40 UTCJul 1, 18:50 UTC10m
2026-07-01 BOREAL5 - Jul 1, 18:10 UTCJul 1, 18:30 UTC20m
2026-07-01 BOREAL5 - Jul 1, 15:55 UTCJul 1, 16:30 UTC35m
2026-07-01 21234 - Jul 1, 03:10 UTCJul 1, 03:45 UTC35m
2026-06-30 21234 - Jun 30, 22:10 UTCJun 30, 23:15 UTC1h 5m
2026-06-30 LICHEN5 FBK → FBK Jun 30, 00:39 UTCJun 30, 01:00 UTC20m
2026-06-29 LICHEN5 - Jun 29, 22:15 UTCJun 30, 00:35 UTC2h 20m
2026-06-29 LICHEN5 - Jun 29, 20:59 UTCJun 29, 21:39 UTC40m
2026-06-29 LICHEN8 FBK → FBK Jun 29, 19:00 UTCJun 29, 19:39 UTC40m
2026-06-29 LICHEN8 - Jun 29, 18:25 UTCJun 29, 18:49 UTC25m
2026-06-29 LICHEN8 FBK → FBK Jun 29, 18:10 UTCJun 29, 18:19 UTC10m
2026-06-26 LICHEN9 - Jun 26, 23:34 UTCJun 27, 00:55 UTC1h 20m
2026-06-26 LICHEN9 - Jun 26, 22:49 UTCJun 26, 23:00 UTC10m
2026-06-26 LICHEN9 FBK → TKJ Jun 26, 19:14 UTCJun 26, 20:40 UTC1h 25m
2026-06-25 LICHEN8 - Jun 25, 20:09 UTCJun 25, 21:40 UTC1h 30m
2026-06-25 LICHEN8 - Jun 25, 18:34 UTCJun 25, 19:15 UTC40m
2026-06-23 21234 FBK → FBK Jun 23, 00:24 UTCJun 23, 01:10 UTC45m
2026-06-22 21234 - Jun 22, 22:59 UTCJun 22, 23:55 UTC55m
2026-06-22 BOREAL9 FBK → FBK Jun 22, 18:40 UTCJun 22, 20:49 UTC2h 10m
2026-06-18 BOREAL2 - Jun 18, 20:30 UTCJun 18, 20:55 UTC25m
2026-06-10 BOREAL5 - Jun 10, 20:55 UTCJun 10, 21:15 UTC20m
2026-06-10 BOREAL5 - Jun 10, 18:30 UTCJun 10, 19:00 UTC30m
2026-06-10 LICHEN9 FBK → FBK Jun 10, 09:40 UTCJun 10, 09:45 UTC5m
2026-06-10 LICHEN9 - Jun 10, 08:45 UTCJun 10, 09:25 UTC40m
2026-06-10 LICHEN9 - Jun 10, 08:00 UTCJun 10, 08:30 UTC30m
2026-06-10 LICHEN9 FBK → FBK Jun 10, 05:55 UTCJun 10, 07:30 UTC1h 35m
2026-06-10 R21234 FBK → FBK Jun 10, 01:50 UTCJun 10, 03:05 UTC1h 15m
2026-06-09 R21234 FBK → FBK Jun 9, 23:50 UTCJun 10, 01:05 UTC1h 15m
2026-06-09 BOREAL9 - Jun 9, 21:00 UTCJun 9, 22:10 UTC1h 10m
2026-06-09 BOREAL9 - Jun 9, 20:05 UTCJun 9, 20:25 UTC20m
2026-06-08 R21234 FBK → FBK Jun 8, 22:05 UTCJun 8, 22:10 UTC5m
2026-06-08 R21234 - Jun 8, 21:00 UTCJun 8, 21:50 UTC50m
2026-06-08 R21234 - Jun 8, 20:30 UTCJun 8, 20:55 UTC25m
2026-06-08 R21234 - Jun 8, 20:10 UTCJun 8, 20:20 UTC10m
2026-06-08 R21234 - Jun 8, 19:55 UTCJun 8, 20:00 UTC5m
2026-06-08 R21234 - Jun 8, 19:35 UTCJun 8, 19:40 UTC5m
2026-06-05 R21234 FBK → FBK Jun 5, 11:00 UTCJun 5, 11:05 UTC5m
2026-06-05 R21234 - Jun 5, 09:45 UTCJun 5, 10:50 UTC1h 5m
2026-06-05 R21234 FBK → FBK Jun 5, 08:50 UTCJun 5, 09:35 UTC45m
2026-06-05 R21234 FBK → FBK Jun 5, 08:30 UTCJun 5, 08:45 UTC15m
2026-06-05 R21234 FBK → FBK Jun 5, 07:55 UTCJun 5, 08:20 UTC25m
2026-06-02 R21234 FBK → FBK Jun 2, 02:50 UTCJun 2, 03:55 UTC1h 5m
2026-06-02 R21234 FBK → FBK Jun 2, 02:15 UTCJun 2, 02:40 UTC25m
2026-06-02 R21234 FBK → FBK Jun 2, 00:55 UTCJun 2, 01:50 UTC55m
2026-06-02 R21234 FBK → FBK Jun 2, 00:00 UTCJun 2, 00:10 UTC10m
2026-05-29 BOREAL5 - May 29, 20:55 UTCMay 29, 21:25 UTC30m
2026-05-29 BOREAL5 - May 29, 20:05 UTCMay 29, 20:50 UTC45m
2026-05-29 BOREAL5 - May 29, 19:45 UTCMay 29, 20:00 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 22-21234 page for operator, model, and routing details .

Mode-S AE74B6 frequently asked

What is Mode-S code AE74B6?
AE74B6 is an ICAO 24-bit transponder address. Assigned to 22-21234.
Is AE74B6 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE74B6, octal 53472266, decimal 11,433,142.
What flights does AE74B6 operate?
Mode-S AE74B6 has broadcast 10 distinct callsigns, including R21234, BOREAL5, LICHEN8, LICHEN9, 21234.