Apparatus

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sensors Mode-S transponder

AC4D43

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N892FD · BOEING 777-200LR · operated by FEDERAL EXPRESS CORP

Hex
AC4D43
Octal
53046503
Decimal
11,291,971
Country
US
Tail
N892FD
Type
B77L
No current signal · last broadcast Jul 26, 14:30 UTC
Flights observed
293
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 14:30 UTC

Last known position

Most recent position reported by Mode-S AC4D43.

Country allocation

The ICAO 24-bit address AC4D43 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
FDX5161 - 17 2026-07-16
FDX5432 - 11 2026-07-13
FDX5030 - 10 2026-06-24
FDX60 FedEx Express 9 2026-07-22
FDX5991 - 9 2026-06-29
FDX5023 FedEx Express 9 2026-05-13
FDX1413 - 8 2026-07-17
FDX75 FedEx Express 7 2026-07-20
FDX5924 FedEx Express 7 2026-05-29
FDX5162 - 7 2026-07-15
FDX948 FedEx Express 6 2026-05-02
FDX5601 FedEx Express 6 2026-06-03
FDX5025 - 6 2026-07-02
FDX5119 FedEx Express 5 2026-05-04
FDX5080 - 5 2026-04-26
FDX9747 FedEx Express 4 2026-05-18
FDX79 FedEx Express 4 2026-07-26
FDX73 FedEx Express 4 2026-06-07
FDX6092 FedEx Express 4 2026-06-20
FDX5809 - 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FDX79 ANC → NRT Jul 26, 10:25 UTCJul 26, 14:20 UTC3h 55m
2026-07-25 FDX337 MEM → OAK Jul 25, 20:25 UTCJul 25, 23:50 UTC3h 25m
2026-07-25 FDX25 LGG → MEM Jul 25, 07:05 UTCJul 25, 16:05 UTC9h 0m
2026-07-25 FDX25 LGG → MEM Jul 25, 07:03 UTCJul 25, 16:05 UTC9h 2m
2026-07-24 FDX5217 CDG → MEM Jul 24, 11:35 UTCJul 24, 14:15 UTC2h 40m
2026-07-24 FDX5217 CDG → MEM Jul 24, 06:50 UTCJul 24, 09:30 UTC2h 40m
2026-07-23 FDX5217 CDG → MEM Jul 23, 22:25 UTCJul 23, 22:40 UTC15m
2026-07-23 FDX5217 CDG → MEM Jul 23, 16:30 UTCJul 23, 19:50 UTC3h 20m
2026-07-23 FDX5388 MEM → ANC Jul 23, 05:10 UTCJul 23, 13:05 UTC7h 55m
2026-07-22 FDX5388 MEM → ANC Jul 22, 21:30 UTCJul 23, 01:40 UTC4h 10m
2026-07-22 FDX5388 MEM → ANC Jul 22, 21:30 UTCJul 23, 01:31 UTC4h 1m
2026-07-22 FDX60 ANC → MEM Jul 22, 11:10 UTCJul 22, 15:15 UTC4h 5m
2026-07-22 FDX60 ANC → MEM Jul 22, 00:35 UTCJul 22, 01:45 UTC1h 10m
2026-07-21 FDX5928 ICN → ANC Jul 21, 20:50 UTCJul 21, 22:05 UTC1h 15m
2026-07-21 FDX5928 ICN → ANC Jul 21, 10:15 UTCJul 21, 10:40 UTC25m
2026-07-21 FDX5928 ICN → ANC Jul 21, 09:15 UTCJul 21, 09:25 UTC10m
2026-07-21 FDX5819 - Jul 21, 03:55 UTCJul 21, 05:20 UTC1h 25m
2026-07-20 FDX6028 - Jul 20, 22:10 UTCJul 20, 23:10 UTC1h 0m
2026-07-20 FDX75 LAX → HNL Jul 20, 17:00 UTCJul 20, 17:30 UTC30m
2026-07-20 FDX75 LAX → HNL Jul 20, 08:10 UTCJul 20, 16:10 UTC8h 0m
2026-07-20 FDX75 LAX → HNL Jul 20, 00:55 UTCJul 20, 03:50 UTC2h 55m
2026-07-18 FDX75 OAK → AKL Jul 18, 16:20 UTCJul 19, 04:34 UTC12h 14m
2026-07-18 FDX75 - Jul 18, 16:20 UTCJul 19, 04:40 UTC12h 20m
2026-07-18 FDX3815 - Jul 18, 06:00 UTCJul 18, 10:30 UTC4h 30m
2026-07-17 FDX1413 - Jul 17, 16:59 UTCJul 17, 17:20 UTC20m
2026-07-17 FDX1413 - Jul 17, 09:25 UTCJul 17, 12:45 UTC3h 20m
2026-07-17 FDX1268 OAK → MEM Jul 17, 02:05 UTCJul 17, 05:39 UTC3h 35m
2026-07-16 FDX5044 - Jul 16, 19:40 UTCJul 16, 23:15 UTC3h 35m
2026-07-16 FDX5044 MEM → OAK Jul 16, 19:34 UTCJul 16, 22:58 UTC3h 24m
2026-07-16 FDX5161 - Jul 16, 10:04 UTCJul 16, 14:45 UTC4h 40m
2026-07-16 FDX5161 ANC → MEM Jul 16, 10:04 UTCJul 16, 15:46 UTC5h 42m
2026-07-16 FDX5161 ANC → MEM Jul 16, 10:04 UTCJul 16, 15:50 UTC5h 46m
2026-07-16 FDX5161 ICN → ANC Jul 16, 00:00 UTCJul 16, 07:40 UTC7h 40m
2026-07-15 FDX5162 KIX → ICN Jul 15, 13:10 UTCJul 15, 21:25 UTC8h 15m
2026-07-15 FDX5015 - Jul 15, 09:20 UTCJul 15, 10:30 UTC1h 10m
2026-07-14 FDX60 KIX → NRT Jul 14, 16:20 UTCJul 14, 22:25 UTC6h 5m
2026-07-14 FDX9391 ICN → KIX Jul 14, 03:05 UTCJul 14, 04:35 UTC1h 30m
2026-07-13 FDX5432 - Jul 13, 15:48 UTCJul 14, 00:04 UTC8h 16m
2026-07-13 FDX5432 - Jul 13, 15:50 UTCJul 14, 00:05 UTC8h 15m
2026-07-13 FDX900D - Jul 13, 02:40 UTCJul 13, 08:25 UTC5h 45m
2026-07-12 FDX9004 ANC → DFW Jul 12, 18:35 UTCJul 13, 00:45 UTC6h 10m
2026-07-12 FDX9004 SIN → ANC Jul 12, 04:30 UTCJul 12, 16:52 UTC12h 22m
2026-07-11 FDX9004 - Jul 11, 11:00 UTCJul 11, 15:45 UTC4h 45m
2026-07-10 FDX85 - Jul 10, 19:43 UTCJul 11, 02:27 UTC6h 44m
2026-07-10 FDX85 ANC → NRT Jul 10, 19:45 UTCJul 11, 02:25 UTC6h 41m
2026-07-10 FDX85 - Jul 10, 08:15 UTCJul 10, 14:40 UTC6h 25m
2026-07-09 FDX5225 - Jul 9, 19:15 UTCJul 10, 05:15 UTC10h 0m
2026-07-09 FDX4 - Jul 9, 09:05 UTCJul 9, 17:25 UTC8h 20m
2026-07-08 FDX1355 - Jul 8, 02:45 UTCJul 8, 05:50 UTC3h 5m
2026-07-07 FDX917 - Jul 7, 21:35 UTCJul 8, 00:40 UTC3h 5m

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 N892FD page for operator, model, and routing details .

Mode-S AC4D43 frequently asked

What is Mode-S code AC4D43?
AC4D43 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N892FD.
Where is Mode-S AC4D43 registered?
Mode-S code AC4D43 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 AC4D43 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC4D43, octal 53046503, decimal 11,291,971.
What flights does AC4D43 operate?
Mode-S AC4D43 has broadcast 20 distinct callsigns, including FDX5161, FDX5432, FDX5030, FDX60, FDX5991.