Apparatus

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sensors Mode-S transponder

040131

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-ATY · AIRBUS A-350-900

Hex
040131
Octal
01000461
Decimal
262,449
Country
ET
Tail
ET-ATY
Type
A359
No current signal · last broadcast 5h ago
Flights observed
45
Distinct callsigns
10
Country
ET
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 040131.

Country allocation

The ICAO 24-bit address 040131 falls within the block assigned to Ethiopia (ET) by ICAO Annex 10, Volume III. Every aircraft registered in Ethiopia 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 10 distinct

Callsign Airline Flights Last seen
ETH685 Ethiopian Airlines 16 2026-05-22
ETH673 Ethiopian Airlines 6 2026-04-18
ETH925 Ethiopian Airlines 4 2026-05-29
ETH639 Ethiopian Airlines 4 2026-05-28
ETH638 Ethiopian Airlines 4 2026-05-28
ETH907 Ethiopian Airlines 3 2026-05-25
ETH684 Ethiopian Airlines 3 2026-04-27
ETH672 Ethiopian Airlines 3 2026-04-18
ETH934 - 1 2026-04-15
ETH604 Ethiopian Airlines 1 2026-05-30

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-05-30 ETH604 ADD → PEK May 30, 07:55 UTCMay 30, 08:15 UTC20m
2026-05-29 ETH925 NSI → ADD May 29, 14:15 UTCMay 29, 14:30 UTC15m
2026-05-29 ETH925 NSI → ADD May 29, 12:15 UTCMay 29, 12:50 UTC35m
2026-05-28 ETH639 KUL → SIN May 28, 18:25 UTCMay 29, 10:15 UTC15h 50m
2026-05-28 ETH639 KUL → SIN May 28, 15:35 UTCMay 28, 16:05 UTC30m
2026-05-28 ETH638 ADD → SIN May 28, 07:50 UTCMay 28, 08:30 UTC40m
2026-05-27 ETH638 ADD → SIN May 27, 13:00 UTCMay 28, 06:10 UTC17h 10m
2026-05-26 ETH639 KUL → SIN May 26, 18:40 UTCMay 27, 11:30 UTC16h 50m
2026-05-26 ETH639 KUL → SIN May 26, 15:35 UTCMay 26, 16:15 UTC40m
2026-05-26 ETH638 ADD → SIN May 26, 08:04 UTCMay 26, 08:54 UTC50m
2026-05-26 ETH638 ADD → SIN May 26, 01:55 UTCMay 26, 06:10 UTC4h 15m
2026-05-25 ETH907 BKO → DSS May 25, 08:05 UTCMay 25, 08:15 UTC10m
2026-05-25 ETH907 BKO → DSS May 25, 05:30 UTCMay 25, 06:10 UTC40m
2026-05-24 ETH907 BKO → DSS May 24, 08:45 UTCMay 25, 06:10 UTC21h 25m
2026-05-22 ETH685 PVG → ADD May 22, 22:55 UTCMay 23, 17:10 UTC18h 14m
2026-05-22 ETH685 PVG → ADD May 22, 20:20 UTCMay 23, 17:10 UTC20h 49m
2026-05-22 ETH685 PVG → ADD May 22, 03:35 UTCMay 22, 23:35 UTC20h 0m
2026-05-22 ETH685 PVG → ADD May 22, 01:25 UTCMay 22, 23:35 UTC22h 10m
2026-05-01 ETH925 NSI → ADD May 1, 14:35 UTCMay 1, 14:50 UTC15m
2026-05-01 ETH925 NSI → ADD May 1, 12:20 UTCMay 1, 12:55 UTC35m
2026-04-30 ETH685 PVG → ADD Apr 30, 20:25 UTCMay 1, 10:20 UTC13h 55m
2026-04-30 ETH685 PVG → ADD Apr 30, 02:50 UTCApr 30, 23:50 UTC21h 0m
2026-04-30 ETH685 PVG → ADD Apr 30, 01:05 UTCApr 30, 23:50 UTC22h 45m
2026-04-28 ETH685 PVG → ADD Apr 28, 20:40 UTCApr 28, 23:45 UTC3h 5m
2026-04-28 ETH685 PVG → ADD Apr 28, 02:35 UTCApr 28, 23:45 UTC21h 10m
2026-04-28 ETH685 PVG → ADD Apr 28, 01:00 UTCApr 28, 23:45 UTC22h 45m
2026-04-27 ETH684 ADD → PVG Apr 27, 14:05 UTCApr 28, 03:35 UTC13h 30m
2026-04-23 ETH685 PVG → ADD Apr 23, 20:30 UTCApr 24, 00:10 UTC3h 40m
2026-04-23 ETH685 PVG → ADD Apr 23, 02:20 UTCApr 24, 00:10 UTC21h 50m
2026-04-23 ETH685 PVG → ADD Apr 23, 00:45 UTCApr 24, 00:10 UTC23h 25m
2026-04-20 ETH685 PVG → ADD Apr 20, 02:35 UTCApr 20, 21:50 UTC19h 15m
2026-04-18 ETH673 ICN → ADD Apr 18, 16:50 UTCApr 19, 01:10 UTC8h 20m
2026-04-18 ETH673 ICN → ADD Apr 18, 15:40 UTCApr 18, 15:55 UTC15m
2026-04-18 ETH673 ICN → ADD Apr 18, 12:05 UTCApr 18, 13:50 UTC1h 45m
2026-04-18 ETH672 ICN → NRT Apr 18, 08:35 UTCApr 18, 10:25 UTC1h 50m
2026-04-18 ETH672 ICN → NRT Apr 18, 06:40 UTCApr 18, 06:55 UTC15m
2026-04-16 ETH685 PVG → ADD Apr 16, 21:14 UTCApr 16, 21:55 UTC40m
2026-04-16 ETH685 PVG → ADD Apr 16, 20:40 UTCApr 16, 21:10 UTC30m
2026-04-16 ETH684 ADD → PVG Apr 16, 03:09 UTCApr 16, 03:49 UTC40m
2026-04-16 ETH684 ADD → PVG Apr 16, 02:34 UTCApr 16, 03:04 UTC30m
2026-04-15 ETH934 - Apr 15, 14:01 UTCApr 15, 14:30 UTC30m
2026-04-13 ETH673 - Apr 13, 15:35 UTCApr 13, 15:50 UTC15m
2026-04-13 ETH673 - Apr 13, 12:20 UTCApr 13, 13:40 UTC1h 20m
2026-04-13 ETH673 - Apr 13, 11:45 UTCApr 13, 12:15 UTC30m
2026-04-13 ETH672 ICN → NRT Apr 13, 08:30 UTCApr 13, 10:10 UTC1h 40m

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 ET-ATY page for operator, model, and routing details .

Mode-S 040131 frequently asked

What is Mode-S code 040131?
040131 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ATY.
Where is Mode-S 040131 registered?
Mode-S code 040131 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040131 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 040131, octal 01000461, decimal 262,449.
What flights does 040131 operate?
Mode-S 040131 has broadcast 10 distinct callsigns, including ETH685, ETH673, ETH925, ETH639, ETH638.