sensors Mode-S transponder

A05BA2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N122FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A05BA2
Octal
50055642
Decimal
10,509,218
Country
US
Tail
N122FE
Type
B763
No current signal · last broadcast 5h ago
Flights observed
101
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A05BA2.

Country allocation

The ICAO 24-bit address A05BA2 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
FDX5607 FedEx Express 11 2026-05-23
FDX5158 - 6 2026-05-22
FDX6020 FedEx Express 5 2026-04-21
FDX6001 - 5 2026-05-27
FDX5775 - 5 2026-05-17
FDX5284 - 5 2026-04-24
FDX6124 - 4 2026-05-29
FDX6067 FedEx Express 4 2026-05-21
FDX6002 - 4 2026-05-28
FDX5262 FedEx Express 4 2026-04-24
FDX6179 - 3 2026-05-28
FDX6159 - 3 2026-05-25
FDX6091 - 3 2026-05-18
FDX6068 FedEx Express 3 2026-05-21
FDX6019 - 3 2026-04-20
FDX5311 - 3 2026-04-24
FDX5192 - 3 2026-04-25
FDX6127 - 2 2026-05-01
FDX6126 - 2 2026-05-01
FDX5926 - 2 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 FDX9126 - May 30, 07:35 UTCMay 30, 09:50 UTC2h 15m
2026-05-29 FDX9156 - May 29, 23:25 UTCMay 30, 00:45 UTC1h 20m
2026-05-29 FDX6124 - May 29, 17:00 UTCMay 29, 17:35 UTC35m
2026-05-29 FDX6124 - May 29, 14:10 UTCMay 29, 14:35 UTC25m
2026-05-29 FDX5146 - May 29, 06:10 UTCMay 29, 07:05 UTC55m
2026-05-28 FDX6179 - May 28, 21:55 UTCMay 29, 00:00 UTC2h 5m
2026-05-28 FDX6002 - May 28, 16:30 UTCMay 28, 16:50 UTC20m
2026-05-28 FDX6002 - May 28, 12:55 UTCMay 28, 14:20 UTC1h 25m
2026-05-27 FDX6001 - May 27, 23:45 UTCMay 28, 01:10 UTC1h 25m
2026-05-27 FDX6001 - May 27, 21:00 UTCMay 27, 21:55 UTC55m
2026-05-27 FDX6124 - May 27, 14:05 UTCMay 27, 17:25 UTC3h 20m
2026-05-27 FDX5146 - May 27, 06:44 UTCMay 27, 07:20 UTC36m
2026-05-26 FDX6179 - May 26, 21:20 UTCMay 26, 21:40 UTC20m
2026-05-26 FDX6002 - May 26, 13:15 UTCMay 26, 14:09 UTC55m
2026-05-25 FDX6001 - May 25, 21:04 UTCMay 26, 01:10 UTC4h 5m
2026-05-25 FDX6159 - May 25, 09:45 UTCMay 25, 10:15 UTC30m
2026-05-24 FDX6159 - May 24, 19:15 UTCMay 24, 21:25 UTC2h 10m
2026-05-23 FDX5607 CRK → CRK May 23, 18:40 UTCMay 23, 18:55 UTC15m
2026-05-23 FDX5607 CRK → CRK May 23, 17:20 UTCMay 23, 17:50 UTC30m
2026-05-22 FDX5158 - May 22, 20:45 UTCMay 22, 22:15 UTC1h 30m
2026-05-22 FDX6124 - May 22, 14:05 UTCMay 22, 17:25 UTC3h 20m
2026-05-21 FDX6179 - May 21, 21:30 UTCMay 22, 07:10 UTC9h 40m
2026-05-21 FDX6067 SGN → SIN May 21, 18:00 UTCMay 21, 18:20 UTC20m
2026-05-21 FDX6067 SGN → SIN May 21, 11:00 UTCMay 21, 11:25 UTC25m
2026-05-21 FDX6068 CGK → CGK May 21, 04:05 UTCMay 21, 05:25 UTC1h 20m
2026-05-19 FDX6071 NRT → CAN May 19, 10:20 UTCMay 19, 10:50 UTC30m
2026-05-19 FDX5148 PEN → SIN May 19, 04:00 UTCMay 19, 05:35 UTC1h 35m
2026-05-18 FDX6091 - May 18, 20:45 UTCMay 19, 01:55 UTC5h 10m
2026-05-18 FDX6065 - May 18, 16:00 UTCMay 18, 16:20 UTC20m
2026-05-17 FDX5775 - May 17, 18:20 UTCMay 17, 18:30 UTC10m
2026-05-16 FDX9081 MEM → ICN May 16, 13:21 UTCMay 16, 14:41 UTC1h 20m
2026-05-15 FDX5608 - May 15, 22:30 UTCMay 15, 23:55 UTC1h 25m
2026-05-15 FDX6091 - May 15, 14:30 UTCMay 15, 15:25 UTC54m
2026-05-14 FDX6159 - May 14, 21:40 UTCMay 14, 22:30 UTC50m
2026-05-13 FDX5607 CRK → CRK May 13, 16:10 UTCMay 13, 16:25 UTC15m
2026-05-13 FDX5607 CRK → CRK May 13, 14:45 UTCMay 13, 15:20 UTC35m
2026-05-12 FDX5158 - May 12, 20:40 UTCMay 12, 22:20 UTC1h 40m
2026-05-11 FDX5607 CRK → CRK May 11, 14:45 UTCMay 11, 16:20 UTC1h 35m
2026-05-10 FDX5158 - May 10, 19:19 UTCMay 10, 20:45 UTC1h 25m
2026-05-10 FDX5157 - May 10, 08:00 UTCMay 10, 09:24 UTC1h 25m
2026-05-09 FDX5775 - May 9, 14:20 UTCMay 10, 00:30 UTC10h 10m
2026-05-09 FDX6091 - May 9, 09:00 UTCMay 9, 09:55 UTC55m
2026-05-08 FDX5860 - May 8, 20:10 UTCMay 9, 01:40 UTC5h 30m
2026-05-07 FDX6067 SGN → SIN May 7, 19:25 UTCMay 7, 20:00 UTC35m
2026-05-07 FDX6067 SGN → SIN May 7, 11:10 UTCMay 7, 11:25 UTC15m
2026-05-07 FDX6068 CGK → CGK May 7, 04:15 UTCMay 7, 05:10 UTC55m
2026-05-07 FDX6068 CGK → CGK May 7, 01:45 UTCMay 7, 02:05 UTC20m
2026-05-06 FDX6002 - May 6, 13:05 UTCMay 6, 21:45 UTC8h 39m
2026-05-05 FDX6001 - May 5, 21:01 UTCMay 6, 01:10 UTC4h 10m
2026-05-04 FDX6013 SIN → SYD May 4, 17:10 UTCMay 4, 17:40 UTC30m

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 N122FE page for operator, model, and routing details .

Mode-S A05BA2 frequently asked

What is Mode-S code A05BA2?
A05BA2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N122FE.
Where is Mode-S A05BA2 registered?
Mode-S code A05BA2 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 A05BA2 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A05BA2, octal 50055642, decimal 10,509,218.
What flights does A05BA2 operate?
Mode-S A05BA2 has broadcast 20 distinct callsigns, including FDX5607, FDX5158, FDX6020, FDX6001, FDX5775.