Apparatus

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sensors Mode-S transponder

AABFF4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N792FD · BOEING 757-200 · operated by FEDERAL EXPRESS CORP

Hex
AABFF4
Octal
52537764
Decimal
11,190,260
Country
US
Tail
N792FD
Type
B752
No current signal · last broadcast 14d ago
Flights observed
86
Distinct callsigns
20
Country
US
Last broadcast
14d ago

Last known position

Most recent position reported by Mode-S AABFF4.

Country allocation

The ICAO 24-bit address AABFF4 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
FDX1502 - 7 2026-06-26
FDX1058 - 5 2026-06-23
FDX1736 FedEx Express 4 2026-04-28
FDX1302 - 4 2026-06-27
FDX1269 FedEx Express 4 2026-06-02
FDX1073 - 4 2026-06-23
FDX839 - 3 2026-06-28
FDX1636 FedEx Express 3 2026-05-05
FDX1409 FedEx Express 3 2026-05-22
FDX1777 FedEx Express 2 2026-06-11
FDX1727 FedEx Express 2 2026-06-05
FDX1714 FedEx Express 2 2026-05-21
FDX1582 - 2 2026-06-25
FDX1579 FedEx Express 2 2026-05-14
FDX1559 FedEx Express 2 2026-05-06
FDX1558 - 2 2026-06-24
FDX1491 FedEx Express 2 2026-05-15
FDX1469 FedEx Express 2 2026-06-02
FDX1387 - 2 2026-06-24
FDX1291 FedEx Express 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-29 FDX9041 - Jun 29, 13:54 UTCJun 29, 14:39 UTC45m
2026-06-28 FDX839 - Jun 28, 14:45 UTCJun 28, 16:25 UTC1h 40m
2026-06-28 FDX839 - Jun 28, 13:25 UTCJun 28, 14:04 UTC40m
2026-06-27 FDX1548 - Jun 27, 08:39 UTCJun 27, 11:14 UTC2h 35m
2026-06-27 FDX1302 - Jun 27, 04:15 UTCJun 27, 05:19 UTC1h 5m
2026-06-27 FDX1302 - Jun 27, 03:09 UTCJun 27, 03:20 UTC10m
2026-06-26 FDX1502 - Jun 26, 10:55 UTCJun 26, 11:09 UTC15m
2026-06-26 FDX1502 - Jun 26, 09:05 UTCJun 26, 10:05 UTC1h 0m
2026-06-26 FDX1353 - Jun 26, 02:34 UTCJun 26, 04:30 UTC1h 55m
2026-06-25 FDX1582 - Jun 25, 09:14 UTCJun 25, 10:20 UTC1h 5m
2026-06-25 FDX1582 MEM → ICT Jun 25, 09:13 UTCJun 25, 10:16 UTC1h 3m
2026-06-24 FDX1267 - Jun 24, 21:14 UTCJun 25, 04:54 UTC7h 40m
2026-06-24 FDX1558 - Jun 24, 11:50 UTCJun 24, 13:10 UTC1h 20m
2026-06-24 FDX1558 - Jun 24, 09:19 UTCJun 24, 10:30 UTC1h 10m
2026-06-24 FDX1387 - Jun 24, 03:19 UTCJun 24, 05:44 UTC2h 25m
2026-06-24 FDX1387 - Jun 24, 01:39 UTCJun 24, 02:15 UTC35m
2026-06-23 FDX1073 - Jun 23, 08:15 UTCJun 23, 09:14 UTC1h 0m
2026-06-23 FDX1073 GSO → EWR Jun 23, 08:09 UTCJun 23, 09:18 UTC1h 9m
2026-06-23 FDX1058 - Jun 23, 04:09 UTCJun 23, 05:59 UTC1h 50m
2026-06-23 FDX1058 DFW → GSO Jun 23, 04:07 UTCJun 23, 05:59 UTC1h 52m
2026-06-23 FDX1058 - Jun 23, 02:49 UTCJun 23, 03:04 UTC15m
2026-06-19 FDX1123 - Jun 19, 04:00 UTCJun 19, 06:59 UTC3h 0m
2026-06-18 FDX1073 - Jun 18, 07:50 UTCJun 18, 08:55 UTC1h 5m
2026-06-18 FDX1073 GSO → EWR Jun 18, 07:49 UTCJun 18, 08:58 UTC1h 9m
2026-06-18 FDX1058 - Jun 18, 03:50 UTCJun 18, 05:50 UTC2h 0m
2026-06-18 FDX1058 - Jun 18, 02:10 UTCJun 18, 02:25 UTC15m
2026-06-17 FDX1123 EWR → AFW Jun 17, 02:35 UTCJun 17, 05:55 UTC3h 20m
2026-06-16 FDX1901 IAD → EWR Jun 16, 03:10 UTCJun 16, 03:50 UTC40m
2026-06-12 FDX1540 MEM → IAD Jun 12, 09:15 UTCJun 12, 10:50 UTC1h 35m
2026-06-12 FDX1211 DSM → MEM Jun 12, 03:10 UTCJun 12, 04:30 UTC1h 20m
2026-06-12 FDX1211 DSM → MEM Jun 12, 02:00 UTCJun 12, 02:25 UTC25m
2026-06-11 FDX1777 IND → CID Jun 11, 10:25 UTCJun 11, 10:50 UTC25m
2026-06-11 FDX1777 IND → CID Jun 11, 08:30 UTCJun 11, 09:35 UTC1h 5m
2026-06-10 FDX1643 GRR → IND Jun 10, 03:20 UTCJun 10, 04:05 UTC45m
2026-06-09 FDX1702 IND → ATL Jun 9, 09:00 UTCJun 9, 09:40 UTC40m
2026-06-09 FDX1662 JAX → IND Jun 9, 02:10 UTCJun 9, 03:40 UTC1h 30m
2026-06-05 FDX1727 IND → ORD Jun 5, 08:12 UTCJun 5, 09:39 UTC1h 27m
2026-06-05 FDX1727 IND → ORD Jun 5, 08:15 UTCJun 5, 09:40 UTC1h 25m
2026-06-03 FDX1606 ORD → IND Jun 3, 02:25 UTCJun 3, 03:10 UTC45m
2026-06-02 FDX1469 MEM → FNT Jun 2, 09:30 UTCJun 2, 11:00 UTC1h 30m
2026-06-02 FDX1269 FNT → MEM Jun 2, 02:05 UTCJun 2, 03:45 UTC1h 40m
2026-06-02 FDX1269 FNT → MEM Jun 2, 02:01 UTCJun 2, 03:45 UTC1h 44m
2026-05-29 FDX1469 MEM → FNT May 29, 09:05 UTCMay 29, 10:25 UTC1h 20m
2026-05-29 FDX1302 SBN → MEM May 29, 04:25 UTCMay 29, 05:35 UTC1h 10m
2026-05-28 FDX1502 MEM → FWA May 28, 11:05 UTCMay 28, 11:15 UTC10m
2026-05-28 FDX1502 MEM → FWA May 28, 10:58 UTCMay 28, 11:16 UTC18m
2026-05-28 FDX1502 MEM → FWA May 28, 09:10 UTCMay 28, 10:05 UTC55m
2026-05-28 FDX1302 SBN → MEM May 28, 03:20 UTCMay 28, 04:30 UTC1h 10m
2026-05-27 FDX1502 MEM → FWA May 27, 11:15 UTCMay 27, 11:30 UTC15m
2026-05-27 FDX1502 MEM → FWA May 27, 09:15 UTCMay 27, 10:15 UTC1h 0m

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 N792FD page for operator, model, and routing details .

Mode-S AABFF4 frequently asked

What is Mode-S code AABFF4?
AABFF4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N792FD.
Where is Mode-S AABFF4 registered?
Mode-S code AABFF4 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 AABFF4 broadcasting right now?
No active broadcast right now. Last signal was 14d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AABFF4, octal 52537764, decimal 11,190,260.
What flights does AABFF4 operate?
Mode-S AABFF4 has broadcast 20 distinct callsigns, including FDX1502, FDX1058, FDX1736, FDX1302, FDX1269.