Apparatus

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sensors Mode-S transponder

AD0799

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N939FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
AD0799
Octal
53203631
Decimal
11,339,673
Country
US
Tail
N939FD
Type
B752
Broadcasting now · callsign FDX1469 · 9,725 ft
Flights observed
163
Distinct callsigns
20
Country
US
Last broadcast
37m ago

Current position

AD0799 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD0799 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
FDX1002 FedEx Express 16 2026-05-05
FDX1001 FedEx Express 15 2026-05-05
FDX1004 FedEx Express 13 2026-05-06
FDX1003 FedEx Express 13 2026-05-05
FDX1989 - 7 2026-06-19
FDX1558 - 6 2026-07-08
FDX1005 FedEx Express 6 2026-05-04
FDX1926 - 5 2026-06-23
FDX1040 - 5 2026-07-09
FDX1757 FedEx Express 4 2026-06-02
FDX1079 - 4 2026-07-09
FDX1008 FedEx Express 4 2026-05-04
FDX1007 FedEx Express 4 2026-05-04
FDX1901 - 3 2026-07-03
FDX1498 - 3 2026-06-26
FDX1332 FedEx Express 3 2026-06-05
FDX1297 - 3 2026-07-10
FDX1006 FedEx Express 3 2026-05-04
FDX982 - 2 2026-06-28
FDX2392 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1469 - Jul 14, 09:35 UTCJul 14, 10:15 UTC40m
2026-07-10 FDX1297 - Jul 10, 02:50 UTCJul 10, 03:45 UTC55m
2026-07-09 FDX1079 - Jul 9, 08:25 UTCJul 9, 09:10 UTC45m
2026-07-09 FDX1040 - Jul 9, 02:55 UTCJul 9, 04:05 UTC1h 10m
2026-07-08 FDX1558 - Jul 8, 12:20 UTCJul 8, 13:40 UTC1h 20m
2026-07-08 FDX1558 - Jul 8, 09:35 UTCJul 8, 10:50 UTC1h 15m
2026-07-08 FDX1297 - Jul 8, 02:45 UTCJul 8, 03:35 UTC50m
2026-07-07 FDX1079 - Jul 7, 08:55 UTCJul 7, 09:40 UTC45m
2026-07-07 FDX1079 GSO → ATL Jul 7, 08:50 UTCJul 7, 09:41 UTC51m
2026-07-07 FDX1040 - Jul 7, 03:10 UTCJul 7, 04:15 UTC1h 5m
2026-07-03 FDX1901 IAD → EWR Jul 3, 03:12 UTCJul 3, 03:54 UTC42m
2026-07-03 FDX1901 IAD → EWR Jul 3, 03:15 UTCJul 3, 03:55 UTC40m
2026-07-02 FDX1540 - Jul 2, 09:00 UTCJul 2, 10:40 UTC1h 40m
2026-07-02 FDX1387 - Jul 2, 03:50 UTCJul 2, 06:00 UTC2h 10m
2026-07-02 FDX1387 - Jul 2, 01:40 UTCJul 2, 02:40 UTC1h 0m
2026-07-01 FDX1073 GSO → EWR Jul 1, 08:05 UTCJul 1, 09:10 UTC1h 5m
2026-07-01 FDX1040 - Jul 1, 02:50 UTCJul 1, 03:45 UTC55m
2026-06-30 FDX1590 - Jun 30, 10:05 UTCJun 30, 12:15 UTC2h 10m
2026-06-30 FDX2392 - Jun 30, 06:25 UTCJun 30, 07:30 UTC1h 5m
2026-06-30 FDX2392 PHX → AFW Jun 30, 02:00 UTCJun 30, 03:55 UTC1h 55m
2026-06-28 FDX982 - Jun 28, 23:14 UTCJun 29, 02:00 UTC2h 45m
2026-06-28 FDX982 MEM → PHX Jun 28, 23:11 UTCJun 29, 01:58 UTC2h 47m
2026-06-27 FDX2324 BNA → MEM Jun 27, 04:29 UTCJun 27, 05:04 UTC35m
2026-06-26 FDX1498 - Jun 26, 09:59 UTCJun 26, 10:39 UTC40m
2026-06-26 FDX1335 - Jun 26, 02:05 UTCJun 26, 03:34 UTC1h 30m
2026-06-25 FDX1579 - Jun 25, 07:39 UTCJun 25, 09:05 UTC1h 25m
2026-06-25 FDX1297 - Jun 25, 02:35 UTCJun 25, 03:20 UTC45m
2026-06-24 FDX1079 - Jun 24, 08:14 UTCJun 24, 09:00 UTC45m
2026-06-24 FDX1040 - Jun 24, 03:04 UTCJun 24, 04:10 UTC1h 5m
2026-06-24 FDX1040 EWR → GSO Jun 24, 03:00 UTCJun 24, 04:10 UTC1h 10m
2026-06-23 FDX1926 BOS → EWR Jun 23, 03:20 UTCJun 23, 04:09 UTC50m
2026-06-19 FDX1989 EWR → BOS Jun 19, 08:14 UTCJun 19, 08:54 UTC40m
2026-06-19 FDX1989 EWR → BOS Jun 19, 08:15 UTCJun 19, 09:01 UTC46m
2026-06-19 FDX1926 BOS → EWR Jun 19, 02:54 UTCJun 19, 03:44 UTC50m
2026-06-18 FDX1989 EWR → BOS Jun 18, 08:25 UTCJun 18, 09:00 UTC35m
2026-06-18 FDX1926 BOS → EWR Jun 18, 02:35 UTCJun 18, 03:20 UTC45m
2026-06-17 FDX1989 EWR → BOS Jun 17, 08:10 UTCJun 17, 08:50 UTC40m
2026-06-17 FDX1926 BOS → EWR Jun 17, 02:25 UTCJun 17, 03:10 UTC45m
2026-06-16 FDX1989 EWR → BOS Jun 16, 08:05 UTCJun 16, 08:39 UTC35m
2026-06-16 FDX1926 BOS → EWR Jun 16, 02:50 UTCJun 16, 03:39 UTC50m
2026-06-12 FDX1989 BOS → MDT Jun 12, 08:10 UTCJun 12, 08:45 UTC35m
2026-06-12 FDX1989 BOS → MDT Jun 12, 08:10 UTCJun 12, 08:42 UTC32m
2026-06-12 FDX1901 IAD → EWR Jun 12, 03:55 UTCJun 12, 04:40 UTC45m
2026-06-11 FDX1540 MEM → IAD Jun 11, 08:55 UTCJun 11, 10:25 UTC1h 30m
2026-06-10 FDX1558 MEM → CHS Jun 10, 12:20 UTCJun 10, 13:35 UTC1h 15m
2026-06-10 FDX1558 MEM → CHS Jun 10, 12:16 UTCJun 10, 13:36 UTC1h 20m
2026-06-10 FDX1558 MEM → CHS Jun 10, 09:50 UTCJun 10, 11:00 UTC1h 10m
2026-06-10 FDX1386 EWR → MEM Jun 10, 04:35 UTCJun 10, 07:00 UTC2h 25m
2026-06-10 FDX1386 EWR → MEM Jun 10, 02:30 UTCJun 10, 03:20 UTC50m
2026-06-09 FDX1586 MEM → EWR Jun 9, 10:15 UTCJun 9, 12:20 UTC2h 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 N939FD page for operator, model, and routing details .

Mode-S AD0799 frequently asked

What is Mode-S code AD0799?
AD0799 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N939FD.
Where is Mode-S AD0799 registered?
Mode-S code AD0799 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 AD0799 broadcasting right now?
Yes. Mode-S AD0799 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD0799, octal 53203631, decimal 11,339,673.
What flights does AD0799 operate?
Mode-S AD0799 has broadcast 20 distinct callsigns, including FDX1002, FDX1001, FDX1004, FDX1003, FDX1989.