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sensors Mode-S transponder

AA4978

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N762FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORP

Hex
AA4978
Octal
52444570
Decimal
11,159,928
Country
US
Tail
N762FE
Type
C208
No current signal · last broadcast 9h ago
Flights observed
112
Distinct callsigns
16
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S AA4978.

Country allocation

The ICAO 24-bit address AA4978 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 16 distinct

Callsign Airline Flights Last seen
PCM7654 - 21 2026-07-17
PCM7688 - 13 2026-06-19
PCM8694 - 12 2026-06-19
PCM8654 - 12 2026-07-17
PCM8688 - 11 2026-05-22
PCM7694 - 9 2026-06-18
PCM8671 - 8 2026-06-25
PCM7652 - 8 2026-06-03
N762FE - 6 2026-07-07
PCM7653 - 3 2026-07-08
PCM8981 - 2 2026-06-24
PCM8660 - 2 2026-07-13
PCM8656 - 2 2026-05-29
PCM8709 - 1 2026-05-28
PCM8662 - 1 2026-07-08
PCM7703 - 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 PCM7654 - Jul 17, 23:55 UTCJul 18, 00:45 UTC50m
2026-07-17 PCM7654 - Jul 17, 23:05 UTCJul 17, 23:14 UTC10m
2026-07-17 PCM8654 - Jul 17, 13:45 UTCJul 17, 14:35 UTC50m
2026-07-17 PCM7654 - Jul 17, 00:20 UTCJul 17, 01:20 UTC1h 0m
2026-07-16 PCM8654 - Jul 16, 13:49 UTCJul 16, 14:40 UTC50m
2026-07-16 PCM7654 - Jul 16, 00:10 UTCJul 16, 01:05 UTC55m
2026-07-15 PCM8654 - Jul 15, 13:40 UTCJul 15, 14:35 UTC55m
2026-07-15 PCM7654 - Jul 15, 00:00 UTCJul 15, 00:50 UTC50m
2026-07-14 PCM8654 - Jul 14, 14:10 UTCJul 14, 15:05 UTC55m
2026-07-14 PCM7654 - Jul 14, 00:10 UTCJul 14, 01:05 UTC55m
2026-07-13 PCM7654 - Jul 13, 23:10 UTCJul 13, 23:20 UTC10m
2026-07-13 PCM8660 - Jul 13, 12:50 UTCJul 13, 13:40 UTC50m
2026-07-11 PCM7654 - Jul 11, 00:25 UTCJul 11, 01:15 UTC50m
2026-07-10 PCM8654 - Jul 10, 14:15 UTCJul 10, 15:10 UTC55m
2026-07-10 PCM7654 - Jul 10, 00:20 UTCJul 10, 01:15 UTC55m
2026-07-09 PCM8654 - Jul 9, 14:15 UTCJul 9, 15:05 UTC50m
2026-07-08 PCM7653 BFL → ONT Jul 8, 23:55 UTCJul 9, 00:50 UTC55m
2026-07-08 PCM8662 - Jul 8, 13:55 UTCJul 8, 14:45 UTC50m
2026-07-08 PCM7653 MIT → ONT Jul 8, 00:05 UTCJul 8, 01:00 UTC55m
2026-07-07 N762FE - Jul 7, 17:25 UTCJul 7, 17:45 UTC20m
2026-06-25 N762FE - Jun 25, 14:39 UTCJun 25, 15:04 UTC25m
2026-06-25 PCM8671 - Jun 25, 13:20 UTCJun 25, 14:14 UTC55m
2026-06-24 PCM8981 - Jun 24, 17:29 UTCJun 24, 18:25 UTC55m
2026-06-24 PCM8981 - Jun 24, 14:39 UTCJun 24, 15:35 UTC55m
2026-06-19 PCM7688 - Jun 19, 23:44 UTCJun 20, 00:49 UTC1h 5m
2026-06-19 PCM8694 - Jun 19, 13:44 UTCJun 19, 14:54 UTC1h 10m
2026-06-18 PCM7694 - Jun 18, 23:30 UTCJun 19, 00:40 UTC1h 9m
2026-06-18 PCM8694 - Jun 18, 13:50 UTCJun 18, 14:55 UTC1h 5m
2026-06-17 PCM7694 - Jun 17, 23:30 UTCJun 18, 00:40 UTC1h 10m
2026-06-17 PCM8694 - Jun 17, 13:50 UTCJun 17, 15:05 UTC1h 15m
2026-06-16 PCM7694 SBP → ONT Jun 16, 23:20 UTCJun 17, 00:35 UTC1h 15m
2026-06-16 PCM8694 - Jun 16, 13:34 UTCJun 16, 14:55 UTC1h 20m
2026-06-15 PCM7694 - Jun 15, 23:35 UTCJun 16, 00:40 UTC1h 5m
2026-06-12 PCM8694 - Jun 12, 14:20 UTCJun 12, 15:40 UTC1h 20m
2026-06-11 PCM7694 - Jun 11, 23:30 UTCJun 12, 00:40 UTC1h 10m
2026-06-11 PCM8694 - Jun 11, 14:00 UTCJun 11, 15:05 UTC1h 5m
2026-06-10 PCM7694 - Jun 10, 23:30 UTCJun 11, 00:35 UTC1h 5m
2026-06-10 PCM8694 - Jun 10, 14:05 UTCJun 10, 15:15 UTC1h 10m
2026-06-09 PCM7694 SBP → ONT Jun 9, 23:25 UTCJun 10, 00:35 UTC1h 10m
2026-06-09 PCM8694 ONT → SBP Jun 9, 14:05 UTCJun 9, 15:20 UTC1h 15m
2026-06-08 PCM7694 - Jun 8, 23:30 UTCJun 9, 00:30 UTC1h 0m
2026-06-06 PCM8694 - Jun 6, 13:54 UTCJun 6, 15:15 UTC1h 20m
2026-06-05 PCM7688 SBP → ONT Jun 5, 23:55 UTCJun 6, 01:20 UTC1h 25m
2026-06-05 PCM8694 - Jun 5, 13:35 UTCJun 5, 14:55 UTC1h 20m
2026-06-04 PCM7694 - Jun 4, 23:50 UTCJun 5, 01:00 UTC1h 10m
2026-06-04 PCM8694 - Jun 4, 13:50 UTCJun 4, 15:10 UTC1h 20m
2026-06-04 PCM7653 BFL → ONT Jun 4, 00:05 UTCJun 4, 01:05 UTC1h 0m
2026-06-03 PCM8671 - Jun 3, 13:25 UTCJun 3, 14:20 UTC55m
2026-06-03 PCM7652 BFL → ONT Jun 3, 00:30 UTCJun 3, 01:30 UTC1h 0m
2026-06-02 PCM8671 - Jun 2, 14:00 UTCJun 2, 14:50 UTC50m

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 N762FE page for operator, model, and routing details .

Mode-S AA4978 frequently asked

What is Mode-S code AA4978?
AA4978 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N762FE.
Where is Mode-S AA4978 registered?
Mode-S code AA4978 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 AA4978 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 AA4978, octal 52444570, decimal 11,159,928.
What flights does AA4978 operate?
Mode-S AA4978 has broadcast 16 distinct callsigns, including PCM7654, PCM7688, PCM8694, PCM8654, PCM8688.