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 8h ago
Flights observed
173
Distinct callsigns
20
Country
ET
Last broadcast
8h 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
ETH609 - 19 2026-07-13
ETH608 - 14 2026-07-13
ETH645 Ethiopian Airlines 13 2026-05-14
ETH680 - 11 2026-07-05
ETH644 Ethiopian Airlines 11 2026-05-14
ETH681 - 10 2026-07-05
ETH715 - 9 2026-06-26
ETH714 - 9 2026-06-26
ETH686 Ethiopian Airlines 9 2026-06-09
ETH687 Ethiopian Airlines 8 2026-06-29
ETH629 - 8 2026-07-11
ETH628 - 6 2026-07-11
ETH689 Ethiopian Airlines 5 2026-06-10
ETH673 - 5 2026-06-22
ETH909 - 4 2026-07-08
ETH740 Ethiopian Airlines 4 2026-05-28
ETH688 Ethiopian Airlines 4 2026-06-03
ETH672 - 4 2026-06-22
ETH741 Ethiopian Airlines 3 2026-05-28
ETH639 Ethiopian Airlines 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ETH609 - Jul 13, 22:00 UTCJul 13, 22:20 UTC20m
2026-07-13 ETH609 - Jul 13, 19:25 UTCJul 13, 19:35 UTC10m
2026-07-13 ETH609 - Jul 13, 17:20 UTCJul 13, 17:40 UTC20m
2026-07-13 ETH609 - Jul 13, 16:15 UTCJul 13, 16:25 UTC10m
2026-07-13 ETH608 - Jul 13, 06:40 UTCJul 13, 07:01 UTC20m
2026-07-12 ETH608 - Jul 12, 14:25 UTCJul 13, 05:05 UTC14h 40m
2026-07-11 ETH629 - Jul 11, 21:40 UTCJul 12, 17:30 UTC19h 50m
2026-07-11 ETH629 - Jul 11, 19:35 UTCJul 12, 17:30 UTC21h 55m
2026-07-11 ETH629 - Jul 11, 19:10 UTCJul 12, 17:30 UTC22h 20m
2026-07-11 ETH629 - Jul 11, 16:20 UTCJul 11, 16:45 UTC25m
2026-07-11 ETH629 - Jul 11, 13:45 UTCJul 11, 15:15 UTC1h 30m
2026-07-11 ETH628 - Jul 11, 08:45 UTCJul 11, 10:35 UTC1h 50m
2026-07-11 ETH628 - Jul 11, 07:35 UTCJul 11, 07:45 UTC10m
2026-07-11 ETH628 - Jul 11, 02:35 UTCJul 11, 06:10 UTC3h 35m
2026-07-09 ETH906 - Jul 9, 18:50 UTCJul 9, 19:25 UTC35m
2026-07-08 ETH909 - Jul 8, 21:45 UTCJul 9, 16:45 UTC19h 0m
2026-07-08 ETH609 - Jul 8, 19:15 UTCJul 8, 19:35 UTC20m
2026-07-08 ETH609 - Jul 8, 17:00 UTCJul 8, 17:30 UTC30m
2026-07-08 ETH609 - Jul 8, 16:05 UTCJul 8, 16:15 UTC10m
2026-07-08 ETH608 - Jul 8, 06:40 UTCJul 8, 07:10 UTC30m
2026-07-07 ETH608 - Jul 7, 12:05 UTCJul 8, 05:05 UTC17h 0m
2026-07-06 ETH609 - Jul 6, 19:15 UTCJul 7, 10:50 UTC15h 35m
2026-07-06 ETH609 - Jul 6, 17:05 UTCJul 6, 17:35 UTC30m
2026-07-06 ETH609 - Jul 6, 16:15 UTCJul 6, 16:25 UTC10m
2026-07-06 ETH608 - Jul 6, 06:40 UTCJul 6, 08:05 UTC1h 25m
2026-07-05 ETH608 - Jul 5, 09:35 UTCJul 6, 05:10 UTC19h 35m
2026-07-05 ETH681 DAC → BKK Jul 5, 08:45 UTCJul 6, 05:10 UTC20h 25m
2026-07-05 ETH680 - Jul 5, 00:45 UTCJul 5, 03:50 UTC3h 5m
2026-07-04 ETH844 - Jul 4, 12:00 UTCJul 4, 12:20 UTC20m
2026-07-03 ETH845 - Jul 3, 22:00 UTCJul 4, 10:55 UTC12h 55m
2026-07-03 ETH609 - Jul 3, 19:15 UTCJul 3, 19:45 UTC30m
2026-07-03 ETH609 - Jul 3, 16:05 UTCJul 3, 17:30 UTC1h 25m
2026-07-03 ETH608 - Jul 3, 06:45 UTCJul 3, 08:35 UTC1h 50m
2026-07-02 ETH608 - Jul 2, 13:55 UTCJul 3, 05:20 UTC15h 25m
2026-07-01 ETH609 - Jul 1, 21:55 UTCJul 1, 22:20 UTC25m
2026-07-01 ETH609 - Jul 1, 19:25 UTCJul 1, 19:35 UTC10m
2026-07-01 ETH609 - Jul 1, 17:15 UTCJul 1, 17:25 UTC10m
2026-07-01 ETH609 - Jul 1, 16:00 UTCJul 1, 16:25 UTC25m
2026-07-01 ETH608 - Jul 1, 08:10 UTCJul 1, 08:55 UTC45m
2026-07-01 ETH608 - Jul 1, 07:00 UTCJul 1, 07:35 UTC35m
2026-07-01 ETH608 - Jul 1, 01:00 UTCJul 1, 05:30 UTC4h 30m
2026-06-29 ETH687 DEL → ADD Jun 29, 21:39 UTCJun 30, 00:04 UTC2h 25m
2026-06-29 ETH717 FCO → DEL Jun 29, 05:15 UTCJun 29, 20:00 UTC14h 45m
2026-06-28 ETH681 DAC → FCO Jun 28, 08:50 UTCJun 29, 03:10 UTC18h 20m
2026-06-27 ETH680 - Jun 27, 14:00 UTCJun 28, 03:59 UTC14h 0m
2026-06-26 ETH715 - Jun 26, 21:35 UTCJun 27, 17:09 UTC19h 35m
2026-06-26 ETH715 - Jun 26, 20:24 UTCJun 27, 17:09 UTC20h 45m
2026-06-26 ETH715 OSL → ARN Jun 26, 17:59 UTCJun 26, 18:39 UTC40m
2026-06-26 ETH714 ARN → OSL Jun 26, 05:50 UTCJun 26, 06:39 UTC50m
2026-06-26 ETH714 - Jun 26, 00:20 UTCJun 26, 04:14 UTC3h 55m

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 8h 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 ETH609, ETH608, ETH645, ETH680, ETH644.