sensors Mode-S transponder

AE56B1

ICAO 24-bit transponder address

Currently assigned to 13-20585 · SIKORSKY UH-60 Black Hawk

Hex
AE56B1
Octal
53453261
Decimal
11,425,457
Tail
13-20585
Type
H60
No current signal · last broadcast 9h ago
Flights observed
38
Distinct callsigns
3
Country
-
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S AE56B1.

Callsign history 3 distinct

Callsign Airline Flights Last seen
R20585 - 36 2026-07-17
20585 - 1 2026-06-24
1320585 - 1 2026-07-10

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-17 R20585 - Jul 17, 23:45 UTCJul 18, 00:10 UTC25m
2026-07-16 R20585 - Jul 16, 14:25 UTCJul 16, 14:35 UTC10m
2026-07-15 R20585 - Jul 15, 21:45 UTCJul 15, 22:00 UTC15m
2026-07-15 R20585 - Jul 15, 20:20 UTCJul 15, 20:35 UTC15m
2026-07-14 R20585 - Jul 14, 19:05 UTCJul 14, 19:15 UTC10m
2026-07-14 R20585 - Jul 14, 15:10 UTCJul 14, 15:25 UTC15m
2026-07-10 1320585 - Jul 10, 18:30 UTCJul 10, 18:45 UTC15m
2026-06-24 20585 - Jun 24, 07:20 UTCJun 24, 08:30 UTC1h 10m
2026-06-18 R20585 - Jun 18, 06:50 UTCJun 18, 08:40 UTC1h 50m
2026-06-18 R20585 - Jun 18, 04:00 UTCJun 18, 06:05 UTC2h 5m
2026-06-17 R20585 - Jun 17, 21:05 UTCJun 17, 21:35 UTC30m
2026-06-17 R20585 - Jun 17, 17:40 UTCJun 17, 18:35 UTC55m
2026-06-17 R20585 - Jun 17, 05:40 UTCJun 17, 07:30 UTC1h 50m
2026-06-12 R20585 - Jun 12, 06:00 UTCJun 12, 07:10 UTC1h 10m
2026-06-12 R20585 - Jun 12, 01:55 UTCJun 12, 02:30 UTC35m
2026-06-11 R20585 - Jun 11, 08:15 UTCJun 11, 08:45 UTC30m
2026-06-10 R20585 - Jun 10, 02:35 UTCJun 10, 02:45 UTC10m
2026-06-10 R20585 - Jun 10, 01:50 UTCJun 10, 02:00 UTC10m
2026-06-05 R20585 - Jun 5, 06:05 UTCJun 5, 06:45 UTC40m
2026-06-04 R20585 - Jun 4, 05:05 UTCJun 4, 05:45 UTC40m
2026-06-04 R20585 - Jun 4, 02:30 UTCJun 4, 03:40 UTC1h 10m
2026-06-03 R20585 - Jun 3, 06:45 UTCJun 3, 06:55 UTC10m
2026-06-03 R20585 - Jun 3, 05:45 UTCJun 3, 06:05 UTC20m
2026-06-02 R20585 - Jun 2, 23:15 UTCJun 2, 23:40 UTC25m
2026-06-02 R20585 - Jun 2, 15:40 UTCJun 2, 15:50 UTC10m
2026-06-02 R20585 - Jun 2, 06:15 UTCJun 2, 07:15 UTC1h 0m
2026-05-29 R20585 - May 29, 20:00 UTCMay 29, 21:20 UTC1h 20m
2026-05-22 R20585 - May 22, 06:45 UTCMay 22, 06:55 UTC10m
2026-05-22 R20585 - May 22, 02:50 UTCMay 22, 03:45 UTC55m
2026-05-19 R20585 - May 19, 22:05 UTCMay 19, 22:20 UTC15m
2026-05-12 R20585 - May 12, 21:55 UTCMay 12, 22:15 UTC20m
2026-05-12 R20585 - May 12, 17:45 UTCMay 12, 18:00 UTC15m
2026-05-07 R20585 - May 7, 19:30 UTCMay 7, 20:50 UTC1h 20m
2026-05-06 R20585 GRF → GRF May 6, 22:55 UTCMay 6, 23:15 UTC20m
2026-05-06 R20585 - May 6, 19:30 UTCMay 6, 19:50 UTC20m
2026-05-05 R20585 - May 5, 21:30 UTCMay 5, 22:40 UTC1h 10m
2026-05-04 R20585 - May 4, 21:20 UTCMay 4, 22:10 UTC50m
2026-05-04 R20585 - May 4, 18:55 UTCMay 4, 19:15 UTC20m

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 13-20585 page for operator, model, and routing details .

Mode-S AE56B1 frequently asked

What is Mode-S code AE56B1?
AE56B1 is an ICAO 24-bit transponder address. Assigned to 13-20585.
Is AE56B1 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE56B1, octal 53453261, decimal 11,425,457.
What flights does AE56B1 operate?
Mode-S AE56B1 has broadcast 3 distinct callsigns, including R20585, 20585, 1320585.