sensors Mode-S transponder

AC25C4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N882FD · BOEING 777-200LR · operated by FEDERAL EXPRESS CORP

Hex
AC25C4
Octal
53022704
Decimal
11,281,860
Country
US
Tail
N882FD
Type
B77L
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
264
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S AC25C4.

Country allocation

The ICAO 24-bit address AC25C4 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
FDX6030 FedEx Express 15 2026-07-25
FDX5217 FedEx Express 13 2026-07-17
FDX77 - 8 2026-07-11
FDX6092 FedEx Express 8 2026-07-23
FDX6083 - 7 2026-07-13
FDX1423 - 6 2026-07-09
FDX1413 - 6 2026-07-18
FDX948 FedEx Express 5 2026-06-12
FDX6014 - 5 2026-07-03
FDX5342 FedEx Express 5 2026-07-24
FDX5045 FedEx Express 5 2026-05-29
FDX10 - 5 2026-07-04
FDX97 FedEx Express 4 2026-05-27
FDX92 FedEx Express 4 2026-05-27
FDX7 FedEx Express 4 2026-07-06
FDX6013 - 4 2026-06-18
FDX5388 - 4 2026-07-16
FDX5024 FedEx Express 4 2026-07-23
FDX30 FedEx Express 4 2026-05-15
FDX1234 - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FDX5419 - Jul 26, 18:20 UTCJul 26, 21:00 UTC2h 40m
2026-07-26 FDX5190 CRK → CRK Jul 26, 13:20 UTCJul 26, 13:50 UTC30m
2026-07-26 FDX5196 - Jul 26, 10:20 UTCJul 26, 11:55 UTC1h 35m
2026-07-26 FDX297 KIX → TPE Jul 26, 05:25 UTCJul 26, 07:40 UTC2h 16m
2026-07-25 FDX19 MEM → KIX Jul 25, 18:50 UTCJul 26, 02:30 UTC7h 40m
2026-07-25 FDX6030 ANC → EWR Jul 25, 02:25 UTCJul 25, 08:55 UTC6h 30m
2026-07-24 FDX5342 CDG → CAN Jul 24, 05:05 UTCJul 25, 00:10 UTC19h 5m
2026-07-24 FDX5342 CDG → CAN Jul 24, 03:15 UTCJul 25, 00:10 UTC20h 55m
2026-07-23 FDX5135 CGN → CDG Jul 23, 21:45 UTCJul 23, 22:35 UTC50m
2026-07-23 FDX5024 CDG → CDG Jul 23, 19:15 UTCJul 23, 20:00 UTC45m
2026-07-23 FDX6092 DWC → BLR Jul 23, 16:00 UTCJul 23, 16:45 UTC45m
2026-07-23 FDX6092 DWC → BLR Jul 23, 09:40 UTCJul 23, 13:55 UTC4h 15m
2026-07-23 FDX6092 DWC → BLR Jul 23, 04:20 UTCJul 23, 04:30 UTC10m
2026-07-22 FDX6092 DWC → BLR Jul 22, 21:05 UTCJul 23, 01:50 UTC4h 45m
2026-07-22 FDX6031 ANC → CAN Jul 22, 13:45 UTCJul 22, 15:40 UTC1h 55m
2026-07-21 FDX9162 MEM → ANC Jul 21, 21:05 UTCJul 22, 03:25 UTC6h 20m
2026-07-21 FDX21 CDG → MEM Jul 21, 07:10 UTCJul 21, 16:15 UTC9h 5m
2026-07-21 FDX21 CDG → MEM Jul 21, 07:06 UTCJul 21, 16:19 UTC9h 13m
2026-07-20 FDX5184 OAK → LGG Jul 20, 00:55 UTCJul 20, 11:00 UTC10h 5m
2026-07-19 FDX3815 - Jul 19, 06:15 UTCJul 19, 10:45 UTC4h 30m
2026-07-18 FDX1413 - Jul 18, 16:50 UTCJul 18, 17:15 UTC25m
2026-07-18 FDX1413 - Jul 18, 09:10 UTCJul 18, 12:30 UTC3h 20m
2026-07-18 FDX1413 MEM → HNL Jul 18, 09:05 UTCJul 18, 17:09 UTC8h 4m
2026-07-17 FDX5217 CDG → MEM Jul 17, 19:35 UTCJul 18, 04:30 UTC8h 56m
2026-07-17 FDX5217 CDG → MEM Jul 17, 16:29 UTCJul 17, 17:15 UTC45m
2026-07-17 FDX5217 CDG → MEM Jul 17, 11:25 UTCJul 17, 14:10 UTC2h 45m
2026-07-17 FDX5217 CDG → MEM Jul 17, 09:35 UTCJul 17, 10:05 UTC30m
2026-07-17 FDX5217 CDG → MEM Jul 17, 07:40 UTCJul 17, 08:59 UTC1h 20m
2026-07-16 FDX5217 - Jul 16, 22:40 UTCJul 16, 22:55 UTC15m
2026-07-16 FDX5217 KIX → HKG Jul 16, 16:25 UTCJul 16, 19:30 UTC3h 5m
2026-07-16 FDX5388 ANC → KIX Jul 16, 07:15 UTCJul 16, 14:20 UTC7h 5m
2026-07-15 FDX5388 OAK → ANC Jul 15, 21:40 UTCJul 16, 01:45 UTC4h 5m
2026-07-15 FDX3806 EWR → OAK Jul 15, 12:18 UTCJul 15, 17:11 UTC4h 53m
2026-07-15 FDX3806 - Jul 15, 12:20 UTCJul 15, 17:15 UTC4h 55m
2026-07-15 FDX1700 - Jul 15, 07:45 UTCJul 15, 09:10 UTC1h 25m
2026-07-15 FDX1621 EWR → IND Jul 15, 03:35 UTCJul 15, 05:05 UTC1h 30m
2026-07-14 FDX721 - Jul 14, 20:50 UTCJul 14, 23:00 UTC2h 9m
2026-07-14 FDX613 - Jul 14, 14:00 UTCJul 14, 15:45 UTC1h 45m
2026-07-14 FDX1499 - Jul 14, 10:20 UTCJul 14, 12:00 UTC1h 40m
2026-07-14 FDX1499 MEM → ELP Jul 14, 10:19 UTCJul 14, 12:16 UTC1h 57m
2026-07-13 FDX6174 - Jul 13, 19:10 UTCJul 14, 04:10 UTC9h 0m
2026-07-13 FDX6083 - Jul 13, 08:55 UTCJul 13, 12:00 UTC3h 5m
2026-07-13 FDX6083 - Jul 13, 05:50 UTCJul 13, 06:15 UTC25m
2026-07-13 FDX6083 - Jul 13, 03:55 UTCJul 13, 05:15 UTC1h 20m
2026-07-11 FDX77 - Jul 11, 17:05 UTCJul 11, 17:30 UTC25m
2026-07-11 FDX77 - Jul 11, 08:25 UTCJul 11, 15:55 UTC7h 30m
2026-07-10 FDX77 OAK → SYD Jul 10, 15:45 UTCJul 11, 06:20 UTC14h 36m
2026-07-10 FDX5044 - Jul 10, 10:00 UTCJul 10, 13:40 UTC3h 40m
2026-07-10 FDX1234 - Jul 10, 02:20 UTCJul 10, 05:35 UTC3h 15m
2026-07-10 FDX1234 LAX → MEM Jul 10, 02:16 UTCJul 10, 05:35 UTC3h 19m

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 N882FD page for operator, model, and routing details .

Mode-S AC25C4 frequently asked

What is Mode-S code AC25C4?
AC25C4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N882FD.
Where is Mode-S AC25C4 registered?
Mode-S code AC25C4 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 AC25C4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC25C4, octal 53022704, decimal 11,281,860.
What flights does AC25C4 operate?
Mode-S AC25C4 has broadcast 20 distinct callsigns, including FDX6030, FDX5217, FDX77, FDX6092, FDX6083.