Apparatus

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sensors Mode-S transponder

A690DE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N522FE · MCDONNELL-DOUGLAS MD-11 · operated by FEDERAL EXPRESS CORP

Hex
A690DE
Octal
51510336
Decimal
10,916,062
Country
US
Tail
N522FE
Type
MD11
No current signal · last broadcast 2h ago
Flights observed
108
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A690DE.

Country allocation

The ICAO 24-bit address A690DE 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
FDX148 - 10 2026-07-12
FDX104 - 9 2026-07-11
FDX147 - 8 2026-07-14
FDX105 - 8 2026-07-02
FDX1514 - 6 2026-06-23
FDX1202 - 6 2026-07-09
FDX910 - 5 2026-07-01
FDX208 - 5 2026-07-10
FDX207 - 5 2026-07-08
FDX604 FedEx Express 4 2026-06-20
FDX447 - 4 2026-07-10
FDX1604 - 4 2026-07-10
FDX9046 - 3 2026-06-03
FDX637 FedEx Express 3 2026-06-23
FDX619 - 3 2026-06-25
FDX743 - 2 2026-07-08
FDX721 FedEx Express 2 2026-06-11
FDX466 - 2 2026-07-12
FDX1704 - 2 2026-07-10
FDX1380 - 2 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX147 - Jul 14, 01:55 UTCJul 14, 03:35 UTC1h 40m
2026-07-12 FDX148 - Jul 12, 22:20 UTCJul 13, 00:01 UTC1h 40m
2026-07-12 FDX466 - Jul 12, 12:20 UTCJul 12, 14:10 UTC1h 50m
2026-07-11 FDX104 - Jul 11, 09:25 UTCJul 11, 11:05 UTC1h 40m
2026-07-11 FDX104 MEM → MIA Jul 11, 09:20 UTCJul 11, 11:05 UTC1h 45m
2026-07-11 FDX147 - Jul 11, 02:00 UTCJul 11, 03:50 UTC1h 50m
2026-07-10 FDX208 - Jul 10, 21:00 UTCJul 10, 22:35 UTC1h 35m
2026-07-10 FDX447 - Jul 10, 12:35 UTCJul 10, 14:35 UTC2h 0m
2026-07-10 FDX447 PHL → PHL Jul 10, 12:05 UTCJul 10, 12:10 UTC5m
2026-07-10 FDX1704 - Jul 10, 09:05 UTCJul 10, 10:20 UTC1h 15m
2026-07-10 FDX1604 - Jul 10, 02:35 UTCJul 10, 03:55 UTC1h 20m
2026-07-10 FDX1604 PHL → PHL Jul 10, 01:50 UTCJul 10, 01:55 UTC5m
2026-07-10 FDX1604 PHL → PHL Jul 10, 01:40 UTCJul 10, 01:45 UTC5m
2026-07-09 FDX787 OLV → PHL Jul 9, 22:05 UTCJul 10, 00:00 UTC1h 55m
2026-07-09 FDX147 - Jul 9, 13:30 UTCJul 9, 15:15 UTC1h 45m
2026-07-09 FDX148 - Jul 9, 08:55 UTCJul 9, 10:40 UTC1h 45m
2026-07-09 FDX148 MEM → YYZ Jul 9, 08:50 UTCJul 9, 10:41 UTC1h 51m
2026-07-09 FDX1202 - Jul 9, 02:20 UTCJul 9, 04:35 UTC2h 15m
2026-07-08 FDX743 - Jul 8, 21:55 UTCJul 9, 00:00 UTC2h 5m
2026-07-08 FDX207 - Jul 8, 13:40 UTCJul 8, 15:25 UTC1h 45m
2026-07-08 FDX148 - Jul 8, 08:55 UTCJul 8, 10:40 UTC1h 45m
2026-07-08 FDX1202 - Jul 8, 02:15 UTCJul 8, 04:20 UTC2h 5m
2026-07-07 FDX743 - Jul 7, 22:05 UTCJul 8, 00:35 UTC2h 30m
2026-07-07 FDX207 - Jul 7, 13:40 UTCJul 7, 15:30 UTC1h 50m
2026-07-07 FDX207 YYZ → MEM Jul 7, 13:40 UTCJul 7, 15:43 UTC2h 3m
2026-07-07 FDX148 - Jul 7, 09:45 UTCJul 7, 11:20 UTC1h 35m
2026-07-07 FDX147 - Jul 7, 01:55 UTCJul 7, 03:40 UTC1h 45m
2026-07-05 FDX148 - Jul 5, 22:05 UTCJul 5, 23:40 UTC1h 35m
2026-07-05 FDX466 - Jul 5, 12:05 UTCJul 5, 13:50 UTC1h 45m
2026-07-04 FDX104 - Jul 4, 08:40 UTCJul 4, 10:25 UTC1h 45m
2026-07-04 FDX147 - Jul 4, 02:00 UTCJul 4, 03:45 UTC1h 45m
2026-07-03 FDX208 - Jul 3, 21:15 UTCJul 3, 23:00 UTC1h 45m
2026-07-03 FDX207 - Jul 3, 13:45 UTCJul 3, 15:25 UTC1h 40m
2026-07-03 FDX148 - Jul 3, 09:20 UTCJul 3, 11:05 UTC1h 45m
2026-07-03 FDX1299 - Jul 3, 03:35 UTCJul 3, 04:50 UTC1h 15m
2026-07-03 FDX1299 IAH → MEM Jul 3, 03:31 UTCJul 3, 04:50 UTC1h 19m
2026-07-02 FDX1411 - Jul 2, 09:20 UTCJul 2, 10:25 UTC1h 5m
2026-07-02 FDX105 - Jul 2, 03:30 UTCJul 2, 05:25 UTC1h 55m
2026-07-01 FDX910 - Jul 1, 21:20 UTCJul 1, 23:20 UTC2h 0m
2026-07-01 FDX207 - Jul 1, 13:15 UTCJul 1, 14:55 UTC1h 40m
2026-07-01 FDX148 - Jul 1, 08:50 UTCJul 1, 10:30 UTC1h 40m
2026-07-01 FDX147 - Jul 1, 02:00 UTCJul 1, 03:45 UTC1h 45m
2026-06-30 FDX208 - Jun 30, 21:05 UTCJun 30, 22:55 UTC1h 50m
2026-06-30 FDX447 - Jun 30, 13:10 UTCJun 30, 14:55 UTC1h 45m
2026-06-30 FDX447 PHL → MEM Jun 30, 13:08 UTCJun 30, 14:55 UTC1h 47m
2026-06-30 FDX1704 - Jun 30, 09:25 UTCJun 30, 10:40 UTC1h 15m
2026-06-30 FDX1604 - Jun 30, 02:40 UTCJun 30, 04:00 UTC1h 20m
2026-06-27 FDX1439 - Jun 27, 21:10 UTCJun 27, 23:00 UTC1h 50m
2026-06-27 FDX105 - Jun 27, 03:30 UTCJun 27, 05:25 UTC1h 55m
2026-06-26 FDX104 - Jun 26, 09:14 UTCJun 26, 11:05 UTC1h 50m

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 N522FE page for operator, model, and routing details .

Mode-S A690DE frequently asked

What is Mode-S code A690DE?
A690DE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N522FE.
Where is Mode-S A690DE registered?
Mode-S code A690DE 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 A690DE broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A690DE, octal 51510336, decimal 10,916,062.
What flights does A690DE operate?
Mode-S A690DE has broadcast 20 distinct callsigns, including FDX148, FDX104, FDX147, FDX105, FDX1514.