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sensors Mode-S transponder

AE6C66

ICAO 24-bit transponder address

Currently assigned to 20-21175 · Sikorsky UH-60M Black Hawk

Hex
AE6C66
Octal
53466146
Decimal
11,431,014
Tail
20-21175
Type
H60
No current signal · last broadcast Jul 24, 18:15 UTC
Flights observed
56
Distinct callsigns
7
Country
-
Last broadcast
Jul 24, 18:15 UTC

Last known position

Most recent position reported by Mode-S AE6C66.

Callsign history 7 distinct

Callsign Airline Flights Last seen
G21175 - 15 2026-07-20
SKED04 - 12 2026-07-24
SKED02 - 9 2026-07-21
SKED96 - 8 2026-07-23
SKED75 - 8 2026-07-24
SKED99 - 2 2026-06-30
CRIME69 - 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 SKED75 - Jul 24, 18:00 UTCJul 24, 18:10 UTC10m
2026-07-24 SKED75 - Jul 24, 16:50 UTCJul 24, 16:55 UTC5m
2026-07-24 SKED75 - Jul 24, 15:30 UTCJul 24, 15:40 UTC10m
2026-07-24 SKED75 - Jul 24, 14:05 UTCJul 24, 14:20 UTC15m
2026-07-24 SKED04 - Jul 24, 02:00 UTCJul 24, 02:40 UTC40m
2026-07-24 SKED04 - Jul 24, 01:40 UTCJul 24, 01:50 UTC10m
2026-07-24 SKED04 - Jul 24, 00:40 UTCJul 24, 00:50 UTC10m
2026-07-23 SKED96 - Jul 23, 22:10 UTCJul 23, 22:20 UTC10m
2026-07-23 SKED96 - Jul 23, 20:30 UTCJul 23, 20:40 UTC10m
2026-07-23 SKED75 - Jul 23, 18:35 UTCJul 23, 18:45 UTC10m
2026-07-23 SKED75 - Jul 23, 16:55 UTCJul 23, 17:05 UTC10m
2026-07-23 SKED75 - Jul 23, 15:00 UTCJul 23, 15:10 UTC10m
2026-07-23 SKED75 - Jul 23, 13:15 UTCJul 23, 13:30 UTC15m
2026-07-21 SKED96 - Jul 21, 23:55 UTCJul 22, 01:35 UTC1h 40m
2026-07-21 SKED96 BGR → BGR Jul 21, 19:45 UTCJul 21, 21:20 UTC1h 35m
2026-07-21 SKED02 BGR → BGR Jul 21, 15:50 UTCJul 21, 16:15 UTC25m
2026-07-21 SKED02 BGR → BGR Jul 21, 15:20 UTCJul 21, 15:45 UTC25m
2026-07-21 SKED02 BGR → BGR Jul 21, 14:50 UTCJul 21, 15:15 UTC25m
2026-07-20 G21175 - Jul 20, 15:10 UTCJul 20, 16:10 UTC1h 0m
2026-07-20 G21175 - Jul 20, 14:45 UTCJul 20, 15:05 UTC20m
2026-07-20 G21175 BGR → BGR Jul 20, 14:35 UTCJul 20, 14:40 UTC5m
2026-07-15 SKED04 BGR → BGR Jul 15, 16:15 UTCJul 15, 18:15 UTC2h 0m
2026-07-15 SKED04 - Jul 15, 14:25 UTCJul 15, 14:35 UTC10m
2026-07-15 SKED04 - Jul 15, 13:20 UTCJul 15, 13:55 UTC35m
2026-07-12 G21175 - Jul 12, 15:25 UTCJul 12, 15:35 UTC10m
2026-07-12 G21175 - Jul 12, 13:35 UTCJul 12, 13:45 UTC10m
2026-07-11 SKED04 - Jul 11, 17:55 UTCJul 11, 18:05 UTC10m
2026-07-11 SKED04 - Jul 11, 16:55 UTCJul 11, 17:00 UTC5m
2026-07-11 SKED04 - Jul 11, 14:10 UTCJul 11, 15:20 UTC1h 10m
2026-07-10 G21175 - Jul 10, 19:50 UTCJul 10, 20:25 UTC35m
2026-07-10 G21175 - Jul 10, 18:00 UTCJul 10, 18:40 UTC40m
2026-07-10 G21175 - Jul 10, 14:55 UTCJul 10, 15:05 UTC10m
2026-07-09 SKED04 BGR → BGR Jul 9, 19:20 UTCJul 9, 19:25 UTC5m
2026-07-09 SKED04 - Jul 9, 16:25 UTCJul 9, 16:40 UTC15m
2026-07-09 SKED04 BGR → BGR Jul 9, 13:35 UTCJul 9, 15:05 UTC1h 30m
2026-07-02 SKED02 BGR → BGR Jul 2, 16:30 UTCJul 2, 18:10 UTC1h 40m
2026-07-02 SKED02 - Jul 2, 14:30 UTCJul 2, 15:15 UTC45m
2026-07-02 SKED02 - Jul 2, 13:10 UTCJul 2, 13:30 UTC20m
2026-07-01 SKED02 - Jul 1, 18:35 UTCJul 1, 19:15 UTC40m
2026-07-01 SKED02 - Jul 1, 17:10 UTCJul 1, 17:30 UTC20m
2026-07-01 SKED02 BGR → BGR Jul 1, 16:55 UTCJul 1, 17:00 UTC5m
2026-06-30 SKED99 BGR → BGR Jun 30, 18:00 UTCJun 30, 18:50 UTC50m
2026-06-30 SKED99 BGR → BGR Jun 30, 15:10 UTCJun 30, 16:45 UTC1h 35m
2026-06-13 SKED96 BGR → OLD Jun 13, 17:30 UTCJun 13, 17:40 UTC10m
2026-06-09 G21175 - Jun 9, 12:35 UTCJun 9, 12:50 UTC15m
2026-06-04 G21175 - Jun 4, 18:15 UTCJun 4, 18:35 UTC20m
2026-06-04 G21175 - Jun 4, 17:15 UTCJun 4, 17:25 UTC10m
2026-06-02 G21175 - Jun 2, 18:50 UTCJun 2, 19:05 UTC15m
2026-06-02 G21175 - Jun 2, 17:00 UTCJun 2, 17:15 UTC15m
2026-06-02 G21175 - Jun 2, 15:25 UTCJun 2, 15:40 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 20-21175 page for operator, model, and routing details .

Mode-S AE6C66 frequently asked

What is Mode-S code AE6C66?
AE6C66 is an ICAO 24-bit transponder address. Assigned to 20-21175.
Is AE6C66 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 18:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE6C66, octal 53466146, decimal 11,431,014.
What flights does AE6C66 operate?
Mode-S AE6C66 has broadcast 7 distinct callsigns, including G21175, SKED04, SKED02, SKED96, SKED75.