sensors Mode-S transponder

AC5C1F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N896FD · BOEING 777-200LR · operated by FEDERAL EXPRESS CORP

Hex
AC5C1F
Octal
53056037
Decimal
11,295,775
Country
US
Tail
N896FD
Type
B77L
No current signal · last broadcast 6d ago
Flights observed
222
Distinct callsigns
20
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S AC5C1F.

Country allocation

The ICAO 24-bit address AC5C1F 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
FDX21 FedEx Express 9 2026-06-13
FDX6030 - 8 2026-06-25
FDX5924 - 8 2026-07-06
FDX7 FedEx Express 6 2026-05-21
FDX60 - 6 2026-06-26
FDX5991 FedEx Express 6 2026-05-30
FDX31 FedEx Express 6 2026-04-17
FDX5161 FedEx Express 5 2026-05-19
FDX38 - 5 2026-07-07
FDX15 FedEx Express 5 2026-06-23
FDX9162 - 4 2026-06-24
FDX90 - 4 2026-06-29
FDX6031 FedEx Express 4 2026-06-25
FDX5432 - 4 2026-06-20
FDX5384 FedEx Express 4 2026-06-03
FDX5279 - 4 2026-07-04
FDX5154 FedEx Express 4 2026-05-29
FDX34 FedEx Express 4 2026-05-20
FDX1413 FedEx Express 4 2026-04-16
FDX6093 - 3 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-08 FDX6093 - Jul 8, 06:00 UTCJul 8, 10:00 UTC4h 0m
2026-07-07 FDX38 - Jul 7, 09:05 UTCJul 7, 12:10 UTC3h 5m
2026-07-07 FDX38 MEM → CDG Jul 7, 09:00 UTCJul 7, 17:11 UTC8h 11m
2026-07-06 FDX84 - Jul 6, 23:40 UTCJul 7, 05:35 UTC5h 55m
2026-07-06 FDX5924 ICN → ANC Jul 6, 13:10 UTCJul 6, 21:00 UTC7h 50m
2026-07-06 FDX5924 - Jul 6, 10:30 UTCJul 6, 10:50 UTC20m
2026-07-06 FDX5835 - Jul 6, 05:50 UTCJul 6, 06:10 UTC20m
2026-07-05 FDX6093 - Jul 5, 05:55 UTCJul 5, 23:20 UTC17h 25m
2026-07-04 FDX5279 - Jul 4, 04:50 UTCJul 4, 15:20 UTC10h 30m
2026-07-03 FDX5279 - Jul 3, 21:45 UTCJul 4, 02:35 UTC4h 50m
2026-07-03 FDX6095 - Jul 3, 04:35 UTCJul 3, 08:35 UTC4h 0m
2026-07-02 FDX5135 CGN → CDG Jul 2, 21:45 UTCJul 2, 22:30 UTC45m
2026-07-02 FDX5024 - Jul 2, 19:10 UTCJul 2, 19:55 UTC45m
2026-07-02 FDX5030 - Jul 2, 11:20 UTCJul 2, 14:10 UTC2h 50m
2026-07-02 FDX5030 - Jul 2, 08:00 UTCJul 2, 08:30 UTC30m
2026-07-02 FDX5030 - Jul 2, 06:15 UTCJul 2, 07:25 UTC1h 10m
2026-07-01 FDX6013 - Jul 1, 19:10 UTCJul 1, 19:35 UTC25m
2026-07-01 FDX6013 - Jul 1, 09:50 UTCJul 1, 18:15 UTC8h 25m
2026-06-30 FDX6087 OAK → SYD Jun 30, 15:45 UTCJul 1, 06:20 UTC14h 35m
2026-06-30 FDX5044 - Jun 30, 09:40 UTCJun 30, 13:15 UTC3h 35m
2026-06-29 FDX90 - Jun 29, 16:29 UTCJun 30, 04:45 UTC12h 16m
2026-06-28 FDX157 - Jun 28, 13:34 UTCJun 28, 15:14 UTC1h 40m
2026-06-27 FDX157 - Jun 27, 22:09 UTCJun 28, 05:20 UTC7h 10m
2026-06-27 FDX5391 - Jun 27, 13:35 UTCJun 27, 20:04 UTC6h 30m
2026-06-27 FDX5391 KIX → NRT Jun 27, 01:09 UTCJun 27, 02:20 UTC1h 10m
2026-06-26 FDX5090 - Jun 26, 16:24 UTCJun 26, 21:55 UTC5h 30m
2026-06-26 FDX60 - Jun 26, 13:34 UTCJun 26, 14:35 UTC1h 0m
2026-06-25 FDX6030 - Jun 25, 22:49 UTCJun 26, 00:30 UTC1h 40m
2026-06-25 FDX6031 ANC → CAN Jun 25, 07:19 UTCJun 25, 09:05 UTC1h 45m
2026-06-25 FDX6031 ANC → CAN Jun 25, 07:20 UTCJun 25, 17:49 UTC10h 29m
2026-06-24 FDX9162 - Jun 24, 20:35 UTCJun 24, 23:45 UTC3h 10m
2026-06-24 FDX9162 MEM → ANC Jun 24, 20:30 UTCJun 25, 02:45 UTC6h 15m
2026-06-24 FDX421 - Jun 24, 12:30 UTCJun 24, 14:34 UTC2h 5m
2026-06-24 FDX1402 - Jun 24, 08:14 UTCJun 24, 09:59 UTC1h 45m
2026-06-24 FDX90 - Jun 24, 00:44 UTCJun 24, 04:34 UTC3h 50m
2026-06-23 FDX90 - Jun 23, 16:14 UTCJun 24, 04:34 UTC12h 20m
2026-06-23 FDX15 ANC → NRT Jun 23, 08:00 UTCJun 23, 17:44 UTC9h 45m
2026-06-22 FDX15 ANC → NRT Jun 22, 15:00 UTCJun 22, 21:49 UTC6h 49m
2026-06-22 FDX15 ANC → NRT Jun 22, 15:05 UTCJun 22, 21:40 UTC6h 35m
2026-06-21 FDX9162 - Jun 21, 22:00 UTCJun 22, 04:49 UTC6h 50m
2026-06-21 FDX9162 MEM → ANC Jun 21, 21:54 UTCJun 22, 04:45 UTC6h 51m
2026-06-21 FDX5012 ANC → MEM Jun 21, 01:14 UTCJun 21, 07:09 UTC5h 55m
2026-06-20 FDX5012 ANC → MEM Jun 20, 12:59 UTCJun 20, 22:39 UTC9h 40m
2026-06-20 FDX5432 - Jun 20, 07:24 UTCJun 20, 10:20 UTC2h 55m
2026-06-19 FDX5432 - Jun 19, 20:37 UTCJun 20, 04:39 UTC8h 2m
2026-06-19 FDX5432 ANC → ICN Jun 19, 20:40 UTCJun 20, 04:44 UTC8h 5m
2026-06-19 FDX5432 - Jun 19, 09:55 UTCJun 19, 16:14 UTC6h 20m
2026-06-19 FDX1268 - Jun 19, 02:19 UTCJun 19, 05:54 UTC3h 35m
2026-06-18 FDX5183 - Jun 18, 06:40 UTCJun 18, 17:25 UTC10h 45m
2026-06-17 FDX6248 IND → LGG Jun 17, 20:15 UTCJun 18, 04:25 UTC8h 10m

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 N896FD page for operator, model, and routing details .

Mode-S AC5C1F frequently asked

What is Mode-S code AC5C1F?
AC5C1F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N896FD.
Where is Mode-S AC5C1F registered?
Mode-S code AC5C1F 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 AC5C1F broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5C1F, octal 53056037, decimal 11,295,775.
What flights does AC5C1F operate?
Mode-S AC5C1F has broadcast 20 distinct callsigns, including FDX21, FDX6030, FDX5924, FDX7, FDX60.