Apparatus

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sensors Mode-S transponder

AC498C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N891FD · BOEING 777-200LR · operated by FEDERAL EXPRESS CORP

Hex
AC498C
Octal
53044614
Decimal
11,291,020
Country
US
Tail
N891FD
Type
B77L
No current signal · last broadcast 3h ago
Flights observed
44
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AC498C.

Country allocation

The ICAO 24-bit address AC498C 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
FDX60 FedEx Express 3 2026-05-14
FDX5991 FedEx Express 3 2026-05-15
FDX5924 FedEx Express 3 2026-04-27
FDX5313 FedEx Express 3 2026-04-30
FDX5044 FedEx Express 3 2026-05-02
FDX73 FedEx Express 2 2026-05-03
FDX6814 FedEx Express 2 2026-05-10
FDX6030 FedEx Express 2 2026-05-07
FDX5601 FedEx Express 2 2026-05-01
FDX19 FedEx Express 2 2026-04-28
FDX169 FedEx Express 2 2026-05-13
FDX1413 FedEx Express 2 2026-05-12
FDX9074 - 1 2026-05-04
FDX90 FedEx Express 1 2026-05-16
FDX6028 - 1 2026-05-05
FDX5986 FedEx Express 1 2026-05-09
FDX5926 - 1 2026-04-26
FDX5835 - 1 2026-04-27
FDX5324 - 1 2026-05-14
FDX5154 FedEx Express 1 2026-05-15

Recent flights last 44

DateFlightRouteTakeoffLandingDuration
2026-05-16 FDX90 KIX → MEM May 16, 10:16 UTCMay 16, 18:10 UTC7h 55m
2026-05-15 FDX5991 KIX → OAK May 15, 12:10 UTCMay 15, 15:15 UTC3h 4m
2026-05-15 FDX5991 KIX → OAK May 15, 09:05 UTCMay 15, 09:25 UTC20m
2026-05-15 FDX5991 KIX → OAK May 15, 06:15 UTCMay 15, 08:25 UTC2h 10m
2026-05-15 FDX5154 NRT → ICN May 15, 00:55 UTCMay 15, 02:35 UTC1h 40m
2026-05-14 FDX5324 - May 14, 20:15 UTCMay 14, 21:20 UTC1h 5m
2026-05-14 FDX60 ANC → MEM May 14, 13:35 UTCMay 14, 14:30 UTC55m
2026-05-14 FDX60 ANC → MEM May 14, 11:43 UTCMay 14, 15:41 UTC3h 58m
2026-05-13 FDX169 ANC → NRT May 13, 11:00 UTCMay 13, 21:40 UTC10h 40m
2026-05-13 FDX1800 HNL → OAK May 13, 02:50 UTCMay 13, 07:30 UTC4h 40m
2026-05-12 FDX1413 MEM → HNL May 12, 10:00 UTCMay 12, 18:00 UTC8h 0m
2026-05-12 FDX1413 MEM → HNL May 12, 10:00 UTCMay 12, 18:00 UTC8h 0m
2026-05-12 FDX1223 SEA → MEM May 12, 02:45 UTCMay 12, 05:40 UTC2h 55m
2026-05-10 FDX301 MEM → SEA May 10, 21:54 UTCMay 11, 01:55 UTC4h 0m
2026-05-10 FDX6814 ANC → MEM May 10, 11:00 UTCMay 10, 16:40 UTC5h 40m
2026-05-10 FDX6814 ANC → MEM May 10, 11:00 UTCMay 10, 16:41 UTC5h 41m
2026-05-09 FDX5986 ANC → MEM May 9, 22:05 UTCMay 10, 09:40 UTC11h 35m
2026-05-09 FDX169D ANC → SIN May 9, 06:00 UTCMay 9, 18:25 UTC12h 25m
2026-05-08 FDX169 ANC → NRT May 8, 21:15 UTCMay 9, 03:50 UTC6h 35m
2026-05-07 FDX6030 ANC → EWR May 7, 19:30 UTCMay 7, 22:00 UTC2h 30m
2026-05-07 FDX6030 ANC → EWR May 7, 10:40 UTCMay 7, 16:55 UTC6h 15m
2026-05-07 FDX60 ANC → MEM May 7, 00:35 UTCMay 7, 07:15 UTC6h 40m
2026-05-05 FDX6028 - May 5, 22:15 UTCMay 5, 22:40 UTC25m
2026-05-04 FDX9074 - May 4, 15:10 UTCMay 4, 15:55 UTC45m
2026-05-03 FDX73 SYD → HKG May 3, 12:10 UTCMay 3, 12:55 UTC45m
2026-05-02 FDX73 SYD → HKG May 2, 17:10 UTCMay 3, 07:35 UTC14h 24m
2026-05-02 FDX5044 MEM → OAK May 2, 09:40 UTCMay 2, 13:17 UTC3h 37m
2026-05-02 FDX5044 MEM → OAK May 2, 09:45 UTCMay 2, 13:20 UTC3h 35m
2026-05-01 FDX5045 OAK → MEM May 1, 23:20 UTCMay 2, 02:35 UTC3h 16m
2026-05-01 FDX5044 MEM → OAK May 1, 09:55 UTCMay 1, 13:50 UTC3h 55m
2026-05-01 FDX5601 ANC → MEM May 1, 00:45 UTCMay 1, 06:25 UTC5h 40m
2026-04-30 FDX5601 ANC → MEM Apr 30, 14:30 UTCApr 30, 23:30 UTC9h 0m
2026-04-30 FDX5313 MEM → ANC Apr 30, 09:20 UTCApr 30, 09:40 UTC20m
2026-04-29 FDX5313 MEM → ANC Apr 29, 19:30 UTCApr 30, 07:30 UTC11h 59m
2026-04-29 FDX5313 MEM → ANC Apr 29, 11:05 UTCApr 29, 17:35 UTC6h 30m
2026-04-28 FDX108 ANC → MEM Apr 28, 23:40 UTCApr 29, 05:25 UTC5h 45m
2026-04-28 FDX19 MEM → KIX Apr 28, 11:05 UTCApr 28, 17:24 UTC6h 19m
2026-04-28 FDX19 MEM → KIX Apr 28, 11:10 UTCApr 28, 17:25 UTC6h 15m
2026-04-27 FDX18 KIX → IND Apr 27, 23:45 UTCApr 28, 05:40 UTC5h 55m
2026-04-27 FDX5924 ICN → ANC Apr 27, 13:25 UTCApr 27, 20:50 UTC7h 25m
2026-04-27 FDX5924 ICN → ANC Apr 27, 10:15 UTCApr 27, 10:35 UTC20m
2026-04-27 FDX5924 ICN → ANC Apr 27, 09:20 UTCApr 27, 09:35 UTC15m
2026-04-27 FDX5835 - Apr 27, 05:25 UTCApr 27, 05:55 UTC30m
2026-04-26 FDX5926 - Apr 26, 21:50 UTCApr 26, 22:25 UTC35m

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 N891FD page for operator, model, and routing details .

Mode-S AC498C frequently asked

What is Mode-S code AC498C?
AC498C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N891FD.
Where is Mode-S AC498C registered?
Mode-S code AC498C 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 AC498C broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC498C, octal 53044614, decimal 11,291,020.
What flights does AC498C operate?
Mode-S AC498C has broadcast 20 distinct callsigns, including FDX60, FDX5991, FDX5924, FDX5313, FDX5044.