Apparatus

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sensors Mode-S transponder

040141

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-AUP · BOEING 787-9 Dreamliner

Hex
040141
Octal
01000501
Decimal
262,465
Country
ET
Tail
ET-AUP
Type
B789
No current signal · last broadcast 2h ago
Flights observed
156
Distinct callsigns
20
Country
ET
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 040141.

Country allocation

The ICAO 24-bit address 040141 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
ETH741 - 17 2026-07-13
ETH740 - 15 2026-07-13
ETH628 - 9 2026-07-05
ETH608 - 9 2026-06-22
ETH629 Ethiopian Airlines 8 2026-07-05
ETH609 - 8 2026-06-22
ETH715 - 7 2026-06-18
ETH645 Ethiopian Airlines 7 2026-05-05
ETH714 - 6 2026-06-18
ETH644 Ethiopian Airlines 6 2026-05-05
ETH736 Ethiopian Airlines 5 2026-05-26
ETH727 - 5 2026-07-11
ETH726 - 4 2026-07-11
ETH638 Ethiopian Airlines 4 2026-05-10
ETH552 - 4 2026-07-07
ETH913 Ethiopian Airlines 3 2026-04-21
ETH750 - 3 2026-06-30
ETH737 Ethiopian Airlines 3 2026-05-14
ETH730 - 3 2026-06-16
ETH716 - 3 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ETH741 - Jul 13, 22:05 UTCJul 14, 10:15 UTC12h 10m
2026-07-13 ETH741 - Jul 13, 18:55 UTCJul 13, 19:55 UTC1h 0m
2026-07-13 ETH740 - Jul 13, 05:20 UTCJul 13, 06:15 UTC55m
2026-07-12 ETH740 - Jul 12, 23:35 UTCJul 13, 03:55 UTC4h 20m
2026-07-11 ETH727 - Jul 11, 22:10 UTCJul 12, 01:25 UTC3h 15m
2026-07-11 ETH727 - Jul 11, 18:05 UTCJul 11, 20:25 UTC2h 20m
2026-07-11 ETH727 MAN → MAN Jul 11, 17:45 UTCJul 11, 17:50 UTC5m
2026-07-11 ETH726 - Jul 11, 06:01 UTCJul 11, 07:40 UTC1h 40m
2026-07-10 ETH726 - Jul 10, 15:15 UTCJul 11, 04:35 UTC13h 21m
2026-07-09 ETH741 - Jul 9, 22:35 UTCJul 10, 12:50 UTC14h 15m
2026-07-09 ETH741 - Jul 9, 19:35 UTCJul 9, 20:35 UTC1h 0m
2026-07-09 ETH740 MAD → OPO Jul 9, 05:15 UTCJul 9, 06:05 UTC50m
2026-07-09 ETH740 - Jul 9, 00:25 UTCJul 9, 03:35 UTC3h 10m
2026-07-07 ETH553 YYZ → ADD Jul 7, 20:50 UTCJul 8, 00:45 UTC3h 55m
2026-07-07 ETH553 YYZ → ADD Jul 7, 15:15 UTCJul 7, 16:50 UTC1h 35m
2026-07-07 ETH552 - Jul 7, 04:20 UTCJul 7, 12:40 UTC8h 20m
2026-07-07 ETH552 - Jul 7, 00:25 UTCJul 7, 02:35 UTC2h 10m
2026-07-05 ETH629 BKK → ADD Jul 5, 19:10 UTCJul 5, 22:05 UTC2h 55m
2026-07-05 ETH629 BKK → ADD Jul 5, 13:55 UTCJul 5, 16:55 UTC3h 0m
2026-07-05 ETH628 - Jul 5, 07:05 UTCJul 5, 10:00 UTC2h 55m
2026-07-05 ETH628 - Jul 5, 01:20 UTCJul 5, 05:40 UTC4h 20m
2026-07-03 ETH611 - Jul 3, 23:05 UTCJul 3, 23:40 UTC35m
2026-07-03 ETH640 - Jul 3, 20:30 UTCJul 3, 21:20 UTC50m
2026-07-03 ETH640 - Jul 3, 00:20 UTCJul 3, 21:20 UTC21h 0m
2026-07-02 ETH741 MAD → ADD Jul 2, 22:20 UTCJul 3, 21:20 UTC23h 0m
2026-07-02 ETH741 MAD → ADD Jul 2, 22:00 UTCJul 3, 00:50 UTC2h 50m
2026-07-02 ETH741 MAD → ADD Jul 2, 19:15 UTCJul 2, 20:20 UTC1h 5m
2026-07-02 ETH740 - Jul 2, 05:30 UTCJul 2, 06:15 UTC45m
2026-07-01 ETH740 - Jul 1, 12:15 UTCJul 2, 04:10 UTC15h 55m
2026-07-01 ETH845 - Jul 1, 10:45 UTCJul 1, 10:50 UTC5m
2026-06-30 ETH751 BRU → ADD Jun 30, 20:00 UTCJun 30, 23:40 UTC3h 40m
2026-06-30 ETH750 - Jun 30, 00:55 UTCJun 30, 04:25 UTC3h 31m
2026-06-28 ETH846 - Jun 28, 14:09 UTCJun 28, 15:44 UTC1h 35m
2026-06-27 ETH629 BKK → ADD Jun 27, 19:00 UTCJun 27, 21:59 UTC3h 0m
2026-06-27 ETH629 BKK → ADD Jun 27, 13:55 UTCJun 27, 16:55 UTC3h 0m
2026-06-27 ETH628 - Jun 27, 09:50 UTCJun 27, 10:05 UTC15m
2026-06-27 ETH628 - Jun 27, 07:10 UTCJun 27, 09:15 UTC2h 5m
2026-06-27 ETH628 - Jun 27, 02:20 UTCJun 27, 05:44 UTC3h 25m
2026-06-25 ETH727 FCO → ADD Jun 25, 21:44 UTCJun 26, 00:05 UTC2h 20m
2026-06-25 ETH727 FCO → ADD Jun 25, 17:54 UTCJun 25, 19:44 UTC1h 50m
2026-06-25 ETH726 - Jun 25, 05:20 UTCJun 25, 07:00 UTC1h 40m
2026-06-25 ETH726 - Jun 25, 01:09 UTCJun 25, 03:59 UTC2h 50m
2026-06-23 ETH713 FCO → ADD Jun 23, 21:20 UTCJun 23, 23:00 UTC1h 40m
2026-06-23 ETH716 - Jun 23, 07:05 UTCJun 23, 19:04 UTC12h 0m
2026-06-22 ETH716 - Jun 22, 21:40 UTCJun 23, 19:04 UTC21h 25m
2026-06-22 ETH716 - Jun 22, 19:09 UTCJun 23, 18:14 UTC23h 5m
2026-06-22 ETH609 - Jun 22, 16:05 UTCJun 22, 17:29 UTC1h 25m
2026-06-22 ETH608 - Jun 22, 07:54 UTCJun 22, 08:29 UTC35m
2026-06-22 ETH608 - Jun 22, 06:49 UTCJun 22, 07:14 UTC25m
2026-06-21 ETH608 - Jun 21, 14:24 UTCJun 22, 05:20 UTC14h 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-AUP page for operator, model, and routing details .

Mode-S 040141 frequently asked

What is Mode-S code 040141?
040141 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AUP.
Where is Mode-S 040141 registered?
Mode-S code 040141 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040141 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040141, octal 01000501, decimal 262,465.
What flights does 040141 operate?
Mode-S 040141 has broadcast 20 distinct callsigns, including ETH741, ETH740, ETH628, ETH608, ETH629.