Apparatus

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sensors Mode-S transponder

040173

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-AWP · AIRBUS A-350-900

Hex
040173
Octal
01000563
Decimal
262,515
Country
ET
Tail
ET-AWP
Type
A359
No current signal · last broadcast 18h ago
Flights observed
78
Distinct callsigns
18
Country
ET
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 040173.

Country allocation

The ICAO 24-bit address 040173 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 18 distinct

Callsign Airline Flights Last seen
ETH552 Ethiopian Airlines 13 2026-05-04
ETH506 Ethiopian Airlines 12 2026-05-25
ETH507 Ethiopian Airlines 9 2026-05-26
ETH553 Ethiopian Airlines 8 2026-05-04
ETH673 Ethiopian Airlines 7 2026-04-30
ETH672 Ethiopian Airlines 5 2026-04-30
ETH735 Ethiopian Airlines 4 2026-05-17
ETH734 Ethiopian Airlines 4 2026-05-16
ETH707 Ethiopian Airlines 3 2026-05-27
ETH751 Ethiopian Airlines 2 2026-05-29
ETH685 Ethiopian Airlines 2 2026-05-24
ETH684 Ethiopian Airlines 2 2026-05-24
ETH955 Ethiopian Airlines 1 2026-05-28
ETH934 Ethiopian Airlines 1 2026-05-13
ETH750 Ethiopian Airlines 1 2026-05-28
ETH706 Ethiopian Airlines 1 2026-05-26
ETH604 Ethiopian Airlines 1 2026-05-02
ETH452 Ethiopian Airlines 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ETH751 BRU → ADD May 29, 19:55 UTCMay 29, 22:45 UTC2h 50m
2026-05-28 ETH750 ADD → BRU May 28, 14:50 UTCMay 29, 05:00 UTC14h 10m
2026-05-28 ETH955 ADD → NSI May 28, 12:05 UTCMay 28, 12:30 UTC25m
2026-05-27 ETH707 FRA → ADD May 27, 20:30 UTCMay 28, 10:40 UTC14h 10m
2026-05-26 ETH706 ADD → FRA May 26, 12:24 UTCMay 27, 03:54 UTC15h 30m
2026-05-26 ETH507 GRU → ADD May 26, 05:54 UTCMay 26, 13:00 UTC7h 5m
2026-05-26 ETH507 GRU → ADD May 26, 02:04 UTCMay 26, 04:20 UTC2h 15m
2026-05-25 ETH506 ADD → GRU May 25, 21:54 UTCMay 26, 00:29 UTC2h 35m
2026-05-25 ETH506 ADD → GRU May 25, 11:35 UTCMay 25, 19:54 UTC8h 19m
2026-05-25 ETH506 ADD → GRU May 25, 10:00 UTCMay 25, 10:15 UTC15m
2026-05-24 ETH685 PVG → ADD May 24, 20:40 UTCMay 24, 23:46 UTC3h 6m
2026-05-24 ETH685 PVG → ADD May 24, 03:15 UTCMay 24, 23:46 UTC20h 31m
2026-05-24 ETH684 ADD → PVG May 24, 01:05 UTCMay 24, 23:46 UTC22h 41m
2026-05-23 ETH684 ADD → PVG May 23, 09:20 UTCMay 24, 04:20 UTC19h 1m
2026-05-22 ETH452 ADD → CAI May 22, 22:45 UTCMay 22, 22:55 UTC10m
2026-05-22 ETH507 GRU → ADD May 22, 06:25 UTCMay 22, 07:25 UTC1h 0m
2026-05-22 ETH507 GRU → ADD May 22, 02:45 UTCMay 22, 04:50 UTC2h 5m
2026-05-21 ETH506 ADD → GRU May 21, 22:35 UTCMay 22, 01:05 UTC2h 30m
2026-05-21 ETH506 ADD → GRU May 21, 19:15 UTCMay 21, 21:05 UTC1h 50m
2026-05-20 ETH506 ADD → GRU May 20, 22:50 UTCMay 21, 21:05 UTC22h 15m
2026-05-20 ETH707 FRA → ADD May 20, 20:50 UTCMay 21, 20:45 UTC23h 55m
2026-05-20 ETH707 FRA → ADD May 20, 20:35 UTCMay 20, 23:00 UTC2h 25m
2026-05-19 ETH507 GRU → ADD May 19, 06:35 UTCMay 19, 07:35 UTC1h 0m
2026-05-19 ETH507 GRU → ADD May 19, 02:45 UTCMay 19, 04:45 UTC2h 0m
2026-05-18 ETH506 ADD → GRU May 18, 22:15 UTCMay 19, 00:45 UTC2h 30m
2026-05-18 ETH506 ADD → GRU May 18, 12:40 UTCMay 18, 20:35 UTC7h 54m
2026-05-17 ETH506 ADD → GRU May 17, 22:50 UTCMay 18, 20:35 UTC21h 44m
2026-05-17 ETH735 CDG → ADD May 17, 20:50 UTCMay 18, 20:35 UTC23h 44m
2026-05-17 ETH735 CDG → ADD May 17, 20:01 UTCMay 18, 12:50 UTC16h 50m
2026-05-16 ETH734 ADD → CDG May 16, 14:25 UTCMay 17, 04:45 UTC14h 20m
2026-05-13 ETH934 ABJ → ADD May 13, 15:05 UTCMay 13, 15:35 UTC30m
2026-05-04 ETH553 YYZ → ADD May 4, 15:15 UTCMay 5, 00:20 UTC9h 6m
2026-05-04 ETH552 ADD → DUB May 4, 04:44 UTCMay 4, 13:05 UTC8h 20m
2026-05-04 ETH552 ADD → DUB May 4, 01:15 UTCMay 4, 03:09 UTC1h 55m
2026-05-02 ETH604 ADD → PEK May 2, 07:45 UTCMay 2, 08:05 UTC20m
2026-05-02 - - May 2, 01:30 UTCMay 2, 01:40 UTC10m
2026-04-30 ETH673 ICN → ADD Apr 30, 16:50 UTCMay 1, 00:35 UTC7h 45m
2026-04-30 ETH673 ICN → ADD Apr 30, 15:40 UTCApr 30, 15:50 UTC10m
2026-04-30 ETH673 ICN → ADD Apr 30, 12:05 UTCApr 30, 14:05 UTC2h 0m
2026-04-30 ETH673 ICN → ADD Apr 30, 08:40 UTCApr 30, 10:35 UTC1h 55m
2026-04-30 ETH672 ICN → NRT Apr 30, 06:30 UTCApr 30, 06:50 UTC20m
2026-04-30 ETH672 ICN → NRT Apr 30, 05:15 UTCApr 30, 05:40 UTC25m
2026-04-27 ETH673 ICN → ADD Apr 27, 16:10 UTCApr 28, 01:15 UTC9h 5m
2026-04-27 ETH673 ICN → ADD Apr 27, 13:30 UTCApr 27, 14:15 UTC45m
2026-04-27 ETH673 ICN → ADD Apr 27, 12:05 UTCApr 27, 13:10 UTC1h 5m
2026-04-27 ETH672 ICN → NRT Apr 27, 08:40 UTCApr 27, 10:35 UTC1h 55m
2026-04-27 ETH672 ICN → NRT Apr 27, 06:20 UTCApr 27, 06:35 UTC15m
2026-04-26 ETH672 ICN → NRT Apr 26, 23:15 UTCApr 27, 05:40 UTC6h 25m
2026-04-24 ETH553 YYZ → ADD Apr 24, 15:20 UTCApr 25, 02:00 UTC10h 40m
2026-04-24 ETH552 ADD → DUB Apr 24, 10:45 UTCApr 24, 11:55 UTC1h 10m

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

Mode-S 040173 frequently asked

What is Mode-S code 040173?
040173 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AWP.
Where is Mode-S 040173 registered?
Mode-S code 040173 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040173 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040173, octal 01000563, decimal 262,515.
What flights does 040173 operate?
Mode-S 040173 has broadcast 18 distinct callsigns, including ETH552, ETH506, ETH507, ETH553, ETH673.