Apparatus

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sensors Mode-S transponder

AC4D44

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N892FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
AC4D44
Octal
53046504
Decimal
11,291,972
Country
US
Tail
N892FE
Type
C208
No current signal · last broadcast 9d ago
Flights observed
109
Distinct callsigns
20
Country
US
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S AC4D44.

Country allocation

The ICAO 24-bit address AC4D44 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
PCM7685 - 17 2026-05-02
PCM7654 - 16 2026-06-17
PCM8685 - 13 2026-05-01
PCM8654 - 12 2026-06-16
PCM8696 - 11 2026-07-07
PCM7696 - 10 2026-07-07
PCM8684 - 6 2026-05-02
PCM8980 - 3 2026-06-19
PCM8660 - 3 2026-06-15
PCM8981 - 2 2026-05-12
PCM8713 - 2 2026-06-27
PCM7971 - 2 2026-06-19
PCM8979 - 1 2026-06-17
PCM8974 - 1 2026-06-18
PCM8972 - 1 2026-05-22
PCM8711 - 1 2026-07-16
PCM8671 - 1 2026-05-19
PCM8662 - 1 2026-06-20
PCM7709 - 1 2026-06-27
PCM7704 - 1 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 PCM8711 OAK → VIS Jul 16, 13:49 UTCJul 16, 14:55 UTC1h 5m
2026-07-15 PCM7704 - Jul 15, 23:20 UTCJul 16, 00:20 UTC1h 0m
2026-07-07 PCM8696 - Jul 7, 18:40 UTCJul 7, 19:25 UTC45m
2026-07-07 PCM8696 - Jul 7, 12:40 UTCJul 7, 13:25 UTC45m
2026-07-07 PCM7696 SBA → ONT Jul 7, 00:25 UTCJul 7, 01:10 UTC45m
2026-07-06 PCM7696 ONT → SBA Jul 6, 21:45 UTCJul 6, 22:35 UTC50m
2026-07-03 PCM8696 SBA → ONT Jul 3, 15:00 UTCJul 3, 15:45 UTC45m
2026-07-03 PCM8696 - Jul 3, 13:30 UTCJul 3, 14:15 UTC45m
2026-07-03 PCM7696 SBA → ONT Jul 3, 00:25 UTCJul 3, 01:15 UTC50m
2026-07-02 PCM8696 - Jul 2, 13:00 UTCJul 2, 13:55 UTC55m
2026-07-02 PCM7696 SBA → ONT Jul 2, 00:15 UTCJul 2, 01:05 UTC50m
2026-07-01 PCM8696 - Jul 1, 12:50 UTCJul 1, 13:45 UTC55m
2026-07-01 PCM7696 - Jul 1, 00:25 UTCJul 1, 01:15 UTC50m
2026-06-30 PCM8696 ONT → SBA Jun 30, 12:35 UTCJun 30, 13:20 UTC45m
2026-06-30 PCM7696 SBA → ONT Jun 30, 00:25 UTCJun 30, 01:09 UTC45m
2026-06-29 PCM7696 - Jun 29, 21:34 UTCJun 29, 22:19 UTC45m
2026-06-27 PCM8713 SBA → ONT Jun 27, 16:55 UTCJun 27, 17:44 UTC50m
2026-06-27 PCM8713 - Jun 27, 15:39 UTCJun 27, 16:30 UTC50m
2026-06-27 PCM7709 SBA → ONT Jun 27, 00:14 UTCJun 27, 01:04 UTC50m
2026-06-26 PCM8696 - Jun 26, 12:44 UTCJun 26, 13:45 UTC1h 0m
2026-06-26 PCM7696 SBA → ONT Jun 26, 00:20 UTCJun 26, 01:10 UTC50m
2026-06-25 PCM8696 ONT → SBA Jun 25, 12:40 UTCJun 25, 13:40 UTC1h 0m
2026-06-25 PCM7696 SBA → ONT Jun 25, 00:24 UTCJun 25, 01:19 UTC55m
2026-06-24 PCM8696 - Jun 24, 13:14 UTCJun 24, 14:09 UTC55m
2026-06-24 PCM7696 - Jun 24, 00:15 UTCJun 24, 01:09 UTC55m
2026-06-23 PCM8696 ONT → SBA Jun 23, 13:00 UTCJun 23, 13:55 UTC55m
2026-06-23 PCM7653 - Jun 23, 00:00 UTCJun 23, 00:54 UTC55m
2026-06-20 PCM8662 ONT → BFL Jun 20, 14:35 UTCJun 20, 15:24 UTC50m
2026-06-19 PCM8980 - Jun 19, 16:09 UTCJun 19, 17:04 UTC55m
2026-06-19 PCM8980 - Jun 19, 14:39 UTCJun 19, 15:34 UTC55m
2026-06-19 PCM7971 - Jun 19, 00:24 UTCJun 19, 01:15 UTC50m
2026-06-18 PCM8974 ONT → SBA Jun 18, 14:45 UTCJun 18, 15:40 UTC55m
2026-06-18 PCM7971 SBA → ONT Jun 18, 00:20 UTCJun 18, 01:10 UTC50m
2026-06-17 PCM8979 ONT → SBA Jun 17, 14:30 UTCJun 17, 15:30 UTC1h 0m
2026-06-17 PCM7654 - Jun 17, 00:10 UTCJun 17, 01:05 UTC55m
2026-06-16 PCM8654 - Jun 16, 13:44 UTCJun 16, 14:35 UTC50m
2026-06-16 PCM7654 IYK → ONT Jun 16, 00:10 UTCJun 16, 01:10 UTC1h 0m
2026-06-15 PCM8660 - Jun 15, 13:25 UTCJun 15, 14:20 UTC55m
2026-06-13 PCM7654 - Jun 13, 00:20 UTCJun 13, 01:15 UTC55m
2026-06-12 PCM8654 - Jun 12, 14:25 UTCJun 12, 15:15 UTC50m
2026-06-12 PCM7654 - Jun 12, 00:10 UTCJun 12, 01:10 UTC1h 1m
2026-06-11 PCM7654 - Jun 11, 23:20 UTCJun 11, 23:30 UTC10m
2026-06-11 PCM8654 - Jun 11, 14:10 UTCJun 11, 15:00 UTC50m
2026-06-11 PCM7654 - Jun 11, 00:00 UTCJun 11, 00:50 UTC50m
2026-06-10 PCM8654 - Jun 10, 14:30 UTCJun 10, 15:25 UTC55m
2026-06-10 PCM7654 - Jun 10, 00:05 UTCJun 10, 00:55 UTC50m
2026-06-09 PCM8654 - Jun 9, 14:25 UTCJun 9, 15:20 UTC55m
2026-06-09 PCM7654 - Jun 9, 00:10 UTCJun 9, 00:55 UTC45m
2026-06-08 PCM8660 - Jun 8, 12:45 UTCJun 8, 13:40 UTC55m
2026-06-06 PCM7654 - Jun 6, 00:00 UTCJun 6, 00:55 UTC55m

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 N892FE page for operator, model, and routing details .

Mode-S AC4D44 frequently asked

What is Mode-S code AC4D44?
AC4D44 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N892FE.
Where is Mode-S AC4D44 registered?
Mode-S code AC4D44 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AC4D44 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC4D44, octal 53046504, decimal 11,291,972.
What flights does AC4D44 operate?
Mode-S AC4D44 has broadcast 20 distinct callsigns, including PCM7685, PCM7654, PCM8685, PCM8654, PCM8696.