Apparatus

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sensors Mode-S transponder

040126

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-ATJ · BOEING 787-8 Dreamliner

Hex
040126
Octal
01000446
Decimal
262,438
Country
ET
Tail
ET-ATJ
Type
B788
No current signal · last broadcast 7h ago
Flights observed
81
Distinct callsigns
20
Country
ET
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 040126.

Country allocation

The ICAO 24-bit address 040126 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 20 distinct

Callsign Airline Flights Last seen
ETH645 Ethiopian Airlines 13 2026-05-14
ETH644 Ethiopian Airlines 11 2026-05-14
ETH686 Ethiopian Airlines 7 2026-05-26
ETH687 Ethiopian Airlines 6 2026-05-29
ETH680 - 5 2026-05-21
ETH740 Ethiopian Airlines 4 2026-05-28
ETH689 Ethiopian Airlines 4 2026-05-25
ETH909 Ethiopian Airlines 3 2026-05-10
ETH741 Ethiopian Airlines 3 2026-05-28
ETH688 Ethiopian Airlines 3 2026-04-28
ETH681 - 3 2026-05-22
ETH629 Ethiopian Airlines 3 2026-05-23
ETH628 Ethiopian Airlines 3 2026-05-23
ETH715 Ethiopian Airlines 2 2026-05-16
ETH714 Ethiopian Airlines 2 2026-05-16
ETH639 Ethiopian Airlines 2 2026-05-09
ETH638 Ethiopian Airlines 2 2026-05-09
ETH942 Ethiopian Airlines 1 2026-04-30
ETH907 Ethiopian Airlines 1 2026-05-18
ETH859 Ethiopian Airlines 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ETH687 DEL → ADD May 29, 21:35 UTCMay 29, 22:10 UTC35m
2026-05-28 ETH741 MAD → ADD May 28, 23:35 UTCMay 29, 19:30 UTC19h 55m
2026-05-28 ETH741 MAD → ADD May 28, 21:45 UTCMay 29, 19:30 UTC21h 45m
2026-05-28 ETH741 MAD → ADD May 28, 19:00 UTCMay 28, 19:55 UTC55m
2026-05-28 ETH740 ADD → MAD May 28, 05:05 UTCMay 28, 05:55 UTC50m
2026-05-28 ETH740 ADD → MAD May 28, 00:10 UTCMay 28, 03:25 UTC3h 15m
2026-05-27 ETH740 ADD → MAD May 27, 05:35 UTCMay 28, 03:25 UTC21h 50m
2026-05-27 ETH740 ADD → MAD May 27, 04:14 UTCMay 28, 03:25 UTC23h 10m
2026-05-26 ETH686 ADD → DEL May 26, 23:45 UTCMay 27, 02:24 UTC2h 40m
2026-05-25 ETH687 DEL → ADD May 25, 21:24 UTCMay 26, 07:29 UTC10h 5m
2026-05-25 ETH689 DEL → ADD May 25, 04:35 UTCMay 25, 19:15 UTC14h 40m
2026-05-24 ETH686 ADD → DEL May 24, 13:40 UTCMay 25, 02:30 UTC12h 50m
2026-05-23 ETH629 BKK → ADD May 23, 21:35 UTCMay 24, 13:45 UTC16h 10m
2026-05-23 ETH629 BKK → ADD May 23, 19:00 UTCMay 23, 19:15 UTC15m
2026-05-23 ETH629 BKK → ADD May 23, 13:55 UTCMay 23, 16:55 UTC3h 0m
2026-05-23 ETH628 BKK → CGK May 23, 07:40 UTCMay 23, 10:40 UTC3h 0m
2026-05-23 ETH628 BKK → CGK May 23, 02:20 UTCMay 23, 06:00 UTC3h 39m
2026-05-22 ETH628 BKK → CGK May 22, 10:45 UTCMay 23, 06:00 UTC19h 14m
2026-05-22 ETH681 DAC → BKK May 22, 08:35 UTCMay 23, 06:00 UTC21h 24m
2026-05-21 ETH680 - May 21, 13:50 UTCMay 22, 03:25 UTC13h 35m
2026-05-19 ETH687 DEL → ADD May 19, 21:20 UTCMay 19, 23:15 UTC1h 55m
2026-05-19 ETH689 DEL → ADD May 19, 04:25 UTCMay 19, 18:55 UTC14h 30m
2026-05-18 ETH686 ADD → DEL May 18, 08:05 UTCMay 19, 02:05 UTC17h 59m
2026-05-18 ETH907 BKO → DSS May 18, 05:05 UTCMay 18, 05:55 UTC50m
2026-05-16 ETH715 ARN → ADD May 16, 20:05 UTCMay 17, 00:05 UTC4h 0m
2026-05-16 ETH715 ARN → ADD May 16, 17:55 UTCMay 16, 18:40 UTC45m
2026-05-16 ETH714 ADD → ARN May 16, 06:06 UTCMay 16, 06:50 UTC45m
2026-05-16 ETH714 ADD → ARN May 16, 00:45 UTCMay 16, 04:35 UTC3h 50m
2026-05-14 ETH645 HKG → ADD May 14, 18:25 UTCMay 14, 21:55 UTC3h 30m
2026-05-14 ETH645 HKG → ADD May 14, 16:40 UTCMay 14, 16:55 UTC15m
2026-05-14 ETH645 HKG → ADD May 14, 14:30 UTCMay 14, 14:50 UTC20m
2026-05-14 ETH645 HKG → ADD May 14, 13:05 UTCMay 14, 13:55 UTC50m
2026-05-14 ETH644 HKG → MNL May 14, 08:50 UTCMay 14, 10:31 UTC1h 40m
2026-05-14 ETH644 HKG → MNL May 14, 03:05 UTCMay 14, 07:00 UTC3h 55m
2026-05-13 ETH644 HKG → MNL May 13, 09:35 UTCMay 14, 07:00 UTC21h 25m
2026-05-13 ETH644 HKG → MNL May 13, 08:40 UTCMay 14, 07:00 UTC22h 20m
2026-05-13 ETH680 - May 13, 02:35 UTCMay 13, 03:35 UTC1h 0m
2026-05-10 ETH909 ADD → BKO May 10, 21:00 UTCMay 10, 21:30 UTC30m
2026-05-10 ETH909 ADD → BKO May 10, 18:55 UTCMay 10, 19:35 UTC40m
2026-05-09 ETH909 ADD → BKO May 9, 21:34 UTCMay 10, 19:35 UTC22h 0m
2026-05-09 ETH639 KUL → SIN May 9, 18:35 UTCMay 9, 22:05 UTC3h 30m
2026-05-09 ETH639 KUL → SIN May 9, 15:30 UTCMay 9, 15:50 UTC20m
2026-05-09 ETH638 ADD → SIN May 9, 08:25 UTCMay 9, 08:55 UTC30m
2026-05-09 ETH638 ADD → SIN May 9, 02:10 UTCMay 9, 05:55 UTC3h 45m
2026-05-05 ETH619 BKK → ADD May 5, 19:10 UTCMay 5, 22:25 UTC3h 15m
2026-05-05 ETH618 ADD → BKK May 5, 02:45 UTCMay 5, 06:10 UTC3h 25m
2026-05-04 ETH689 DEL → ADD May 4, 05:35 UTCMay 5, 03:10 UTC21h 36m
2026-05-04 ETH689 DEL → ADD May 4, 05:05 UTCMay 5, 03:10 UTC22h 6m
2026-05-04 ETH686 ADD → DEL May 4, 00:55 UTCMay 4, 03:15 UTC2h 20m
2026-05-02 ETH645 HKG → ADD May 2, 18:55 UTCMay 2, 22:20 UTC3h 25m

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

Mode-S 040126 frequently asked

What is Mode-S code 040126?
040126 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ATJ.
Where is Mode-S 040126 registered?
Mode-S code 040126 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040126 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040126, octal 01000446, decimal 262,438.
What flights does 040126 operate?
Mode-S 040126 has broadcast 20 distinct callsigns, including ETH645, ETH644, ETH686, ETH687, ETH680.