Apparatus

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sensors Mode-S transponder

A2F9B3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N291FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A2F9B3
Octal
50574663
Decimal
10,680,755
Country
US
Tail
N291FE
Type
B763
Broadcasting now · callsign FDX1545 · 34,025 ft
Flights observed
202
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Current position

A2F9B3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2F9B3 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
FDX52 - 6 2026-07-16
FDX251 - 6 2026-07-15
FDX1841 - 5 2026-07-15
FDX1440 FedEx Express 5 2026-05-19
FDX141 FedEx Express 5 2026-07-23
FDX1240 FedEx Express 5 2026-05-20
FDX1731 - 4 2026-06-24
FDX1638 FedEx Express 4 2026-05-29
FDX140 FedEx Express 4 2026-07-22
FDX2613 - 3 2026-07-02
FDX1603 - 3 2026-06-18
FDX1450 - 3 2026-07-01
FDX1449 FedEx Express 3 2026-05-28
FDX1447 FedEx Express 3 2026-07-23
FDX853 - 2 2026-06-25
FDX830 - 2 2026-07-18
FDX785 FedEx Express 2 2026-05-03
FDX693 FedEx Express 2 2026-06-18
FDX653 FedEx Express 2 2026-06-21
FDX529 FedEx Express 2 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FDX727 MEM → ATL Jul 26, 22:05 UTCJul 26, 22:45 UTC40m
2026-07-25 FDX451 LAX → MEM Jul 25, 12:55 UTCJul 25, 16:10 UTC3h 15m
2026-07-24 FDX1151 AFW → LAX Jul 24, 08:40 UTCJul 24, 11:10 UTC2h 30m
2026-07-24 FDX1107 ORD → AFW Jul 24, 04:20 UTCJul 24, 06:05 UTC1h 45m
2026-07-23 FDX1447 MEM → ORD Jul 23, 08:00 UTCJul 23, 09:10 UTC1h 10m
2026-07-23 FDX141 YYC → MEM Jul 23, 01:50 UTCJul 23, 04:55 UTC3h 5m
2026-07-22 FDX140 MEM → YYC Jul 22, 10:20 UTCJul 22, 13:30 UTC3h 10m
2026-07-22 FDX1346 CLE → MEM Jul 22, 02:15 UTCJul 22, 03:50 UTC1h 35m
2026-07-21 FDX1552 - Jul 21, 09:05 UTCJul 21, 10:30 UTC1h 25m
2026-07-21 FDX1552 MEM → CLE Jul 21, 09:02 UTCJul 21, 10:25 UTC1h 23m
2026-07-21 FDX1268 OAK → MEM Jul 21, 02:00 UTCJul 21, 05:35 UTC3h 35m
2026-07-18 FDX311 MEM → OAK Jul 18, 22:00 UTCJul 19, 00:45 UTC2h 45m
2026-07-18 FDX311 MEM → OAK Jul 18, 21:57 UTCJul 19, 01:22 UTC3h 25m
2026-07-18 FDX830 - Jul 18, 11:55 UTCJul 18, 12:45 UTC50m
2026-07-18 FDX830 MCO → MEM Jul 18, 11:51 UTCJul 18, 13:25 UTC1h 34m
2026-07-17 FDX1771 - Jul 17, 08:20 UTCJul 17, 10:05 UTC1h 45m
2026-07-16 FDX3605 - Jul 16, 11:30 UTCJul 16, 13:45 UTC2h 15m
2026-07-16 FDX1444 - Jul 16, 07:45 UTCJul 16, 09:30 UTC1h 45m
2026-07-16 FDX52 - Jul 16, 03:05 UTCJul 16, 04:55 UTC1h 50m
2026-07-16 FDX52 - Jul 16, 01:20 UTCJul 16, 01:30 UTC10m
2026-07-15 FDX251 - Jul 15, 23:25 UTCJul 15, 23:45 UTC20m
2026-07-15 FDX251 - Jul 15, 20:05 UTCJul 15, 21:55 UTC1h 50m
2026-07-15 FDX400 - Jul 15, 14:10 UTCJul 15, 17:40 UTC3h 30m
2026-07-15 FDX1841 - Jul 15, 03:15 UTCJul 15, 06:10 UTC2h 55m
2026-07-15 FDX1841 AFW → OAK Jul 15, 03:11 UTCJul 15, 06:06 UTC2h 55m
2026-07-14 FDX1841 OAK → AFW Jul 14, 22:30 UTCJul 15, 01:25 UTC2h 54m
2026-07-14 FDX1807 PDX → OAK Jul 14, 04:05 UTCJul 14, 05:30 UTC1h 25m
2026-07-12 FDX382 - Jul 12, 21:55 UTCJul 13, 01:35 UTC3h 40m
2026-07-12 FDX382 MEM → PDX Jul 12, 21:53 UTCJul 13, 01:35 UTC3h 42m
2026-07-12 FDX5986 - Jul 12, 02:35 UTCJul 12, 08:25 UTC5h 50m
2026-07-11 FDX169 OAK → ANC Jul 11, 09:55 UTCJul 11, 13:55 UTC4h 0m
2026-07-09 FDX1840 - Jul 9, 02:45 UTCJul 9, 05:50 UTC3h 5m
2026-07-08 FDX1840 OAK → AFW Jul 8, 22:50 UTCJul 9, 01:35 UTC2h 45m
2026-07-08 FDX1841 - Jul 8, 04:30 UTCJul 8, 07:30 UTC3h 0m
2026-07-07 FDX1841 OAK → AFW Jul 7, 22:30 UTCJul 8, 01:10 UTC2h 40m
2026-07-07 FDX1586 - Jul 7, 12:25 UTCJul 7, 16:05 UTC3h 40m
2026-07-07 FDX1309 - Jul 7, 03:45 UTCJul 7, 04:30 UTC45m
2026-07-03 FDX1523 - Jul 3, 09:30 UTCJul 3, 10:05 UTC35m
2026-07-03 FDX1276 - Jul 3, 02:40 UTCJul 3, 04:55 UTC2h 15m
2026-07-02 FDX1712 IND → JFK Jul 2, 08:27 UTCJul 2, 09:55 UTC1h 28m
2026-07-02 FDX1712 IND → JFK Jul 2, 08:30 UTCJul 2, 10:00 UTC1h 30m
2026-07-02 FDX2613 - Jul 2, 03:20 UTCJul 2, 04:20 UTC1h 0m
2026-07-01 FDX1450 - Jul 1, 08:55 UTCJul 1, 09:50 UTC55m
2026-07-01 FDX1251 - Jul 1, 02:45 UTCJul 1, 04:00 UTC1h 15m
2026-06-30 FDX336 - Jun 30, 21:40 UTCJun 30, 22:55 UTC1h 15m
2026-06-30 FDX1276 - Jun 30, 02:40 UTCJun 30, 04:50 UTC2h 10m
2026-06-27 FDX1431 - Jun 27, 08:44 UTCJun 27, 10:40 UTC1h 55m
2026-06-27 FDX1247 - Jun 27, 04:49 UTCJun 27, 05:55 UTC1h 5m
2026-06-26 FDX1157 - Jun 26, 07:39 UTCJun 26, 09:24 UTC1h 45m
2026-06-26 FDX1121 SAT → AFW Jun 26, 03:34 UTCJun 26, 04:24 UTC50m

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 N291FE page for operator, model, and routing details .

Mode-S A2F9B3 frequently asked

What is Mode-S code A2F9B3?
A2F9B3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N291FE.
Where is Mode-S A2F9B3 registered?
Mode-S code A2F9B3 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 A2F9B3 broadcasting right now?
Yes. Mode-S A2F9B3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2F9B3, octal 50574663, decimal 10,680,755.
What flights does A2F9B3 operate?
Mode-S A2F9B3 has broadcast 20 distinct callsigns, including FDX52, FDX251, FDX1841, FDX1440, FDX141.