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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 Jul 26, 22:10 UTC
Flights observed
187
Distinct callsigns
20
Country
ET
Last broadcast
Jul 26, 22:10 UTC

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 Ethiopian Airlines 23 2026-07-23
ETH740 Ethiopian Airlines 19 2026-07-23
ETH628 - 9 2026-07-05
ETH608 - 9 2026-06-22
ETH629 Ethiopian Airlines 8 2026-07-05
ETH609 - 8 2026-06-22
ETH736 - 7 2026-07-15
ETH715 - 7 2026-06-18
ETH645 Ethiopian Airlines 7 2026-05-05
ETH714 - 6 2026-06-18
ETH644 Ethiopian Airlines 6 2026-05-05
ETH737 - 5 2026-07-15
ETH730 Ethiopian Airlines 5 2026-07-26
ETH727 - 5 2026-07-11
ETH716 - 5 2026-07-18
ETH847 Ethiopian Airlines 4 2026-07-25
ETH731 Ethiopian Airlines 4 2026-07-26
ETH726 - 4 2026-07-11
ETH638 Ethiopian Airlines 4 2026-05-10
ETH552 - 4 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH731 DUB → ADD Jul 26, 20:15 UTCJul 26, 22:10 UTC1h 55m
2026-07-26 ETH731 DUB → ADD Jul 26, 17:50 UTCJul 26, 18:45 UTC55m
2026-07-26 ETH730 VIE → BRU Jul 26, 05:30 UTCJul 26, 06:25 UTC55m
2026-07-26 ETH730 VIE → BRU Jul 26, 01:55 UTCJul 26, 04:15 UTC2h 20m
2026-07-25 ETH846 CPT → ADD Jul 25, 14:00 UTCJul 25, 14:20 UTC20m
2026-07-25 ETH847 ADD → CPT Jul 25, 12:00 UTCJul 25, 12:35 UTC35m
2026-07-24 ETH847 ADD → CPT Jul 24, 14:20 UTCJul 25, 12:35 UTC22h 15m
2026-07-24 ETH603 DXB → ADD Jul 24, 13:55 UTCJul 25, 12:15 UTC22h 20m
2026-07-23 ETH741 MAD → ADD Jul 23, 21:40 UTCJul 24, 12:00 UTC14h 20m
2026-07-23 ETH741 MAD → ADD Jul 23, 19:05 UTCJul 23, 19:55 UTC50m
2026-07-23 ETH740 ADD → MAD Jul 23, 05:45 UTCJul 23, 06:35 UTC50m
2026-07-23 ETH740 ADD → MAD Jul 23, 00:00 UTCJul 23, 04:20 UTC4h 20m
2026-07-22 ETH741 - Jul 22, 00:20 UTCJul 23, 00:10 UTC23h 50m
2026-07-22 ETH741 - Jul 22, 00:10 UTCJul 22, 00:40 UTC30m
2026-07-21 ETH741 - Jul 21, 21:45 UTCJul 22, 00:05 UTC2h 20m
2026-07-21 ETH741 - Jul 21, 18:55 UTCJul 21, 19:45 UTC50m
2026-07-21 ETH740 ADD → MAD Jul 21, 05:20 UTCJul 21, 06:10 UTC50m
2026-07-20 ETH740 ADD → MAD Jul 20, 08:25 UTCJul 21, 03:45 UTC19h 19m
2026-07-19 ETH907 BKO → DSS Jul 19, 15:05 UTCJul 20, 06:20 UTC15h 15m
2026-07-18 ETH713 - Jul 18, 22:20 UTCJul 19, 17:10 UTC18h 50m
2026-07-18 ETH713 - Jul 18, 22:00 UTCJul 19, 17:10 UTC19h 10m
2026-07-18 ETH716 - Jul 18, 18:00 UTCJul 18, 19:55 UTC1h 55m
2026-07-17 ETH716 - Jul 17, 22:20 UTCJul 18, 19:55 UTC21h 36m
2026-07-17 ETH725 VIE → FCO Jul 17, 20:50 UTCJul 18, 19:55 UTC23h 6m
2026-07-17 ETH725 CPH → VIE Jul 17, 17:50 UTCJul 17, 19:09 UTC1h 20m
2026-07-17 ETH724 VIE → BRU Jul 17, 05:15 UTCJul 17, 06:29 UTC1h 15m
2026-07-17 ETH724 VIE → BRU Jul 17, 01:35 UTCJul 17, 03:59 UTC2h 25m
2026-07-15 ETH737 - Jul 15, 22:20 UTCJul 16, 01:25 UTC3h 5m
2026-07-15 ETH737 ZRH → MXP Jul 15, 19:50 UTCJul 15, 20:25 UTC35m
2026-07-15 ETH736 MXP → ZRH Jul 15, 05:15 UTCJul 15, 05:50 UTC35m
2026-07-14 ETH736 - Jul 14, 13:35 UTCJul 15, 03:50 UTC14h 14m
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

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 Jul 26, 22:10 UTC.
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.