Apparatus

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sensors Mode-S transponder

A8AAF4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N658FE · AIRBUS A-300-600 · operated by FEDERAL EXPRESS CORP

Hex
A8AAF4
Octal
52125364
Decimal
11,053,812
Country
US
Tail
N658FE
Type
A306
No current signal · last broadcast 4h ago
Flights observed
131
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A8AAF4.

Country allocation

The ICAO 24-bit address A8AAF4 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
FDX1486 FedEx Express 5 2026-05-28
FDX1564 - 4 2026-06-30
FDX1536 - 4 2026-07-03
FDX1237 FedEx Express 4 2026-05-29
FDX1162 FedEx Express 4 2026-06-17
FDX1105 - 4 2026-06-17
FDX1583 FedEx Express 3 2026-05-27
FDX1528 - 3 2026-07-01
FDX1517 - 3 2026-06-16
FDX1500 FedEx Express 3 2026-05-23
FDX1418 FedEx Express 3 2026-06-13
FDX1366 - 3 2026-06-20
FDX1334 FedEx Express 3 2026-05-28
FDX1328 - 3 2026-07-02
FDX1309 - 3 2026-07-03
FDX1303 - 3 2026-07-01
FDX1218 - 3 2026-06-16
FDX880 FedEx Express 2 2026-06-28
FDX533 FedEx Express 2 2026-05-11
FDX3608 FedEx Express 2 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FDX1730 IND → BWI Jul 14, 09:20 UTCJul 14, 10:35 UTC1h 15m
2026-07-14 FDX1630 BWI → IND Jul 14, 03:00 UTCJul 14, 04:15 UTC1h 15m
2026-07-11 FDX1482 - Jul 11, 08:55 UTCJul 11, 10:40 UTC1h 45m
2026-07-11 FDX1231 - Jul 11, 02:55 UTCJul 11, 04:45 UTC1h 50m
2026-07-10 FDX1544 - Jul 10, 09:40 UTCJul 10, 11:35 UTC1h 55m
2026-07-10 FDX1257 - Jul 10, 03:30 UTCJul 10, 04:15 UTC45m
2026-07-10 FDX1257 SHV → MEM Jul 10, 03:27 UTCJul 10, 04:15 UTC48m
2026-07-09 FDX1479 - Jul 9, 10:25 UTCJul 9, 11:05 UTC40m
2026-07-08 FDX2209 - Jul 8, 02:05 UTCJul 8, 03:35 UTC1h 30m
2026-07-08 FDX2209 MCO → MEM Jul 8, 02:00 UTCJul 8, 03:32 UTC1h 32m
2026-07-07 FDX358 MEM → MCO Jul 7, 21:55 UTCJul 7, 23:35 UTC1h 40m
2026-07-04 FDX470 - Jul 4, 11:35 UTCJul 4, 12:55 UTC1h 20m
2026-07-03 FDX1536 - Jul 3, 08:25 UTCJul 3, 09:50 UTC1h 25m
2026-07-03 FDX1309 - Jul 3, 03:45 UTCJul 3, 04:40 UTC55m
2026-07-02 FDX1523 - Jul 2, 10:05 UTCJul 2, 10:45 UTC40m
2026-07-02 FDX1328 - Jul 2, 01:40 UTCJul 2, 03:25 UTC1h 45m
2026-07-01 FDX1528 - Jul 1, 09:15 UTCJul 1, 11:00 UTC1h 45m
2026-07-01 FDX1303 - Jul 1, 02:05 UTCJul 1, 03:45 UTC1h 40m
2026-06-30 FDX1564 - Jun 30, 12:20 UTCJun 30, 12:55 UTC35m
2026-06-30 FDX1564 - Jun 30, 09:15 UTCJun 30, 11:15 UTC2h 0m
2026-06-28 FDX880 DFW → MEM Jun 28, 13:40 UTCJun 28, 16:05 UTC2h 25m
2026-06-28 FDX880 DFW → MEM Jun 28, 11:19 UTCJun 28, 12:39 UTC1h 20m
2026-06-21 FDX980 - Jun 21, 22:24 UTCJun 22, 02:19 UTC3h 55m
2026-06-20 FDX1366 - Jun 20, 05:49 UTCJun 20, 06:24 UTC35m
2026-06-20 FDX1366 - Jun 20, 02:09 UTCJun 20, 04:54 UTC2h 45m
2026-06-19 FDX1366 PDX → SNA Jun 19, 22:19 UTCJun 20, 00:29 UTC2h 10m
2026-06-19 FDX1709 - Jun 19, 08:40 UTCJun 19, 12:39 UTC4h 0m
2026-06-19 FDX1709 IND → PDX Jun 19, 08:35 UTCJun 19, 12:39 UTC4h 4m
2026-06-19 FDX1661 SLC → IND Jun 19, 02:19 UTCJun 19, 04:44 UTC2h 25m
2026-06-19 FDX1661 SLC → IND Jun 19, 02:19 UTCJun 19, 04:50 UTC2h 30m
2026-06-18 FDX1770 - Jun 18, 08:45 UTCJun 18, 12:00 UTC3h 15m
2026-06-17 FDX3608 DEN → IND Jun 17, 13:20 UTCJun 17, 15:15 UTC1h 55m
2026-06-17 FDX1162 AFW → DEN Jun 17, 08:30 UTCJun 17, 09:55 UTC1h 25m
2026-06-17 FDX1162 AFW → DEN Jun 17, 08:30 UTCJun 17, 10:03 UTC1h 33m
2026-06-17 FDX1105 - Jun 17, 03:40 UTCJun 17, 04:25 UTC45m
2026-06-17 FDX1105 - Jun 17, 01:15 UTCJun 17, 02:05 UTC50m
2026-06-16 FDX1517 - Jun 16, 09:50 UTCJun 16, 11:35 UTC1h 45m
2026-06-16 FDX1218 - Jun 16, 02:45 UTCJun 16, 04:15 UTC1h 30m
2026-06-13 FDX1418 MEM → DTW Jun 13, 09:10 UTCJun 13, 10:30 UTC1h 20m
2026-06-13 FDX1418 MEM → DTW Jun 13, 09:07 UTCJun 13, 10:26 UTC1h 19m
2026-06-13 FDX2338 ORF → MEM Jun 13, 01:40 UTCJun 13, 03:25 UTC1h 45m
2026-06-12 FDX1433 MEM → RDU Jun 12, 09:40 UTCJun 12, 11:20 UTC1h 40m
2026-06-11 FDX1322 GRR → MEM Jun 11, 03:00 UTCJun 11, 04:25 UTC1h 25m
2026-06-10 FDX1536 MEM → GRR Jun 10, 08:30 UTCJun 10, 09:45 UTC1h 15m
2026-06-10 FDX1350 BFM → MEM Jun 10, 02:15 UTCJun 10, 03:10 UTC55m
2026-06-09 FDX1526 MEM → BFM Jun 9, 09:15 UTCJun 9, 10:00 UTC45m
2026-06-09 FDX1285 RIC → MEM Jun 9, 03:05 UTCJun 9, 04:00 UTC55m
2026-06-05 FDX1746 IND → TYS Jun 5, 08:35 UTCJun 5, 09:20 UTC45m
2026-06-05 FDX1746 IND → TYS Jun 5, 08:30 UTCJun 5, 09:16 UTC46m
2026-06-05 FDX153 YOW → IND Jun 5, 02:10 UTCJun 5, 04:00 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 N658FE page for operator, model, and routing details .

Mode-S A8AAF4 frequently asked

What is Mode-S code A8AAF4?
A8AAF4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N658FE.
Where is Mode-S A8AAF4 registered?
Mode-S code A8AAF4 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 A8AAF4 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8AAF4, octal 52125364, decimal 11,053,812.
What flights does A8AAF4 operate?
Mode-S A8AAF4 has broadcast 20 distinct callsigns, including FDX1486, FDX1564, FDX1536, FDX1237, FDX1162.