Apparatus

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sensors Mode-S transponder

040239

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-BAP · BOEING 737 MAX 8

Hex
040239
Octal
01001071
Decimal
262,713
Country
ET
Tail
ET-BAP
Type
B38M
No current signal · last broadcast 2d ago
Flights observed
50
Distinct callsigns
7
Country
ET
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 040239.

Country allocation

The ICAO 24-bit address 040239 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 7 distinct

Callsign Airline Flights Last seen
ETH622 Ethiopian Airlines 24 2026-05-27
ETH623 Ethiopian Airlines 16 2026-05-15
ETH407 Ethiopian Airlines 3 2026-05-06
ETH406 Ethiopian Airlines 3 2026-05-06
ETH686 Ethiopian Airlines 2 2026-04-13
ETH689 - 1 2026-04-13
ETH614 Ethiopian Airlines 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 ETH622 ADD → SHJ May 27, 22:50 UTCMay 27, 23:20 UTC30m
2026-05-26 ETH622 ADD → SHJ May 26, 22:59 UTCMay 26, 23:39 UTC40m
2026-05-25 ETH622 ADD → SHJ May 25, 22:44 UTCMay 25, 23:19 UTC35m
2026-05-19 ETH622 ADD → SHJ May 19, 23:00 UTCMay 19, 23:30 UTC30m
2026-05-15 ETH623 SHJ → ADD May 15, 01:20 UTCMay 15, 01:40 UTC20m
2026-05-14 ETH622 ADD → SHJ May 14, 23:10 UTCMay 14, 23:40 UTC30m
2026-05-10 ETH622 ADD → SHJ May 10, 22:55 UTCMay 10, 23:25 UTC30m
2026-05-09 ETH623 SHJ → ADD May 9, 01:00 UTCMay 9, 01:20 UTC20m
2026-05-07 ETH623 SHJ → ADD May 7, 00:50 UTCMay 7, 01:20 UTC30m
2026-05-06 ETH407 BEY → ADD May 6, 12:30 UTCMay 6, 13:35 UTC1h 5m
2026-05-06 ETH406 ADD → BEY May 6, 10:10 UTCMay 6, 10:55 UTC45m
2026-05-05 ETH622 ADD → SHJ May 5, 22:55 UTCMay 5, 23:25 UTC30m
2026-05-02 ETH623 SHJ → ADD May 2, 00:45 UTCMay 2, 01:10 UTC25m
2026-05-01 ETH407 BEY → ADD May 1, 13:05 UTCMay 1, 23:25 UTC10h 20m
2026-05-01 ETH406 ADD → BEY May 1, 01:00 UTCMay 1, 11:35 UTC10h 35m
2026-04-30 ETH622 ADD → SHJ Apr 30, 22:45 UTCApr 30, 23:25 UTC40m
2026-04-30 ETH623 SHJ → ADD Apr 30, 00:40 UTCApr 30, 23:25 UTC22h 45m
2026-04-29 ETH407 BEY → ADD Apr 29, 13:10 UTCApr 29, 23:10 UTC9h 59m
2026-04-29 ETH406 ADD → BEY Apr 29, 00:59 UTCApr 29, 11:25 UTC10h 25m
2026-04-28 ETH622 ADD → SHJ Apr 28, 09:15 UTCApr 28, 23:20 UTC14h 5m
2026-04-26 ETH623 SHJ → ADD Apr 26, 00:55 UTCApr 26, 01:15 UTC20m
2026-04-25 ETH622 ADD → SHJ Apr 25, 22:55 UTCApr 25, 23:25 UTC30m
2026-04-25 ETH622 ADD → SHJ Apr 25, 01:00 UTCApr 25, 23:25 UTC22h 25m
2026-04-24 ETH614 ADD → AUH Apr 24, 22:45 UTCApr 24, 23:05 UTC20m
2026-04-24 ETH623 SHJ → ADD Apr 24, 00:45 UTCApr 24, 23:05 UTC22h 20m
2026-04-23 ETH622 ADD → SHJ Apr 23, 09:20 UTCApr 23, 23:25 UTC14h 5m
2026-04-23 ETH623 SHJ → ADD Apr 23, 00:45 UTCApr 23, 23:25 UTC22h 40m
2026-04-22 ETH622 ADD → SHJ Apr 22, 22:50 UTCApr 22, 23:20 UTC30m
2026-04-22 ETH623 SHJ → ADD Apr 22, 01:00 UTCApr 22, 23:20 UTC22h 20m
2026-04-21 ETH622 ADD → SHJ Apr 21, 22:45 UTCApr 21, 23:20 UTC35m
2026-04-21 ETH623 SHJ → ADD Apr 21, 00:50 UTCApr 21, 23:20 UTC22h 30m
2026-04-20 ETH622 ADD → SHJ Apr 20, 09:05 UTCApr 20, 23:25 UTC14h 20m
2026-04-20 ETH623 SHJ → ADD Apr 20, 01:00 UTCApr 20, 23:25 UTC22h 25m
2026-04-19 ETH622 ADD → SHJ Apr 19, 08:55 UTCApr 19, 23:30 UTC14h 35m
2026-04-19 ETH622 ADD → SHJ Apr 19, 00:55 UTCApr 19, 23:30 UTC22h 35m
2026-04-18 ETH622 ADD → SHJ Apr 18, 22:55 UTCApr 18, 23:25 UTC30m
2026-04-18 ETH623 SHJ → ADD Apr 18, 00:50 UTCApr 18, 23:25 UTC22h 35m
2026-04-17 ETH622 ADD → SHJ Apr 17, 22:45 UTCApr 17, 23:20 UTC35m
2026-04-17 ETH623 SHJ → ADD Apr 17, 01:20 UTCApr 17, 01:35 UTC15m
2026-04-17 ETH623 SHJ → ADD Apr 17, 01:10 UTCApr 17, 01:15 UTC5m
2026-04-16 ETH622 ADD → SHJ Apr 16, 23:20 UTCApr 16, 23:30 UTC10m
2026-04-16 ETH622 ADD → SHJ Apr 16, 22:50 UTCApr 16, 23:10 UTC20m
2026-04-15 ETH623 SHJ → ADD Apr 15, 00:55 UTCApr 15, 01:05 UTC10m
2026-04-15 ETH623 SHJ → ADD Apr 15, 00:40 UTCApr 15, 00:50 UTC10m
2026-04-14 ETH622 ADD → SHJ Apr 14, 22:55 UTCApr 14, 23:10 UTC15m
2026-04-14 ETH622 ADD → SHJ Apr 14, 22:35 UTCApr 14, 22:50 UTC15m
2026-04-13 ETH622 ADD → SHJ Apr 13, 22:45 UTCApr 13, 23:20 UTC35m
2026-04-13 ETH689 - Apr 13, 04:25 UTCApr 13, 05:00 UTC35m
2026-04-13 ETH686 ADD → DEL Apr 13, 01:50 UTCApr 13, 02:30 UTC40m
2026-04-13 ETH686 ADD → DEL Apr 13, 00:15 UTCApr 13, 02:30 UTC2h 15m

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-BAP page for operator, model, and routing details .

Mode-S 040239 frequently asked

What is Mode-S code 040239?
040239 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-BAP.
Where is Mode-S 040239 registered?
Mode-S code 040239 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040239 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040239, octal 01001071, decimal 262,713.
What flights does 040239 operate?
Mode-S 040239 has broadcast 7 distinct callsigns, including ETH622, ETH623, ETH407, ETH406, ETH686.