Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

040171

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
040171
Octal
01000561
Decimal
262,513
Country
ET
Tail
ET-AWN
Type
A359
No current signal · last broadcast 14h ago
Flights observed
76
Distinct callsigns
20
Country
ET
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 040171.

Country allocation

The ICAO 24-bit address 040171 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
ETH506 Ethiopian Airlines 15 2026-05-29
ETH507 Ethiopian Airlines 9 2026-05-30
ETH735 Ethiopian Airlines 5 2026-05-10
ETH734 Ethiopian Airlines 4 2026-05-10
ETH729 Ethiopian Airlines 4 2026-04-17
ETH736 Ethiopian Airlines 3 2026-04-21
ETH728 Ethiopian Airlines 3 2026-04-17
ETH727 Ethiopian Airlines 3 2026-05-14
ETH909 Ethiopian Airlines 2 2026-05-25
ETH908 Ethiopian Airlines 2 2026-05-26
ETH751 Ethiopian Airlines 2 2026-04-30
ETH750 Ethiopian Airlines 2 2026-04-30
ETH739 Ethiopian Airlines 2 2026-05-19
ETH738 Ethiopian Airlines 2 2026-05-19
ETH737 Ethiopian Airlines 2 2026-04-21
ETH726 Ethiopian Airlines 2 2026-05-14
ETH707 Ethiopian Airlines 2 2026-05-22
ETH706 Ethiopian Airlines 2 2026-05-22
ETH605 Ethiopian Airlines 2 2026-05-03
ETH604 Ethiopian Airlines 2 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ETH507 GRU → ADD May 30, 05:35 UTCMay 30, 06:35 UTC1h 0m
2026-05-30 ETH507 GRU → ADD May 30, 01:45 UTCMay 30, 03:55 UTC2h 10m
2026-05-29 ETH506 ADD → GRU May 29, 21:50 UTCMay 30, 00:20 UTC2h 30m
2026-05-29 ETH506 ADD → GRU May 29, 11:45 UTCMay 29, 20:20 UTC8h 35m
2026-05-29 ETH506 ADD → GRU May 29, 10:10 UTCMay 29, 10:25 UTC15m
2026-05-26 ETH908 BKO → ADD May 26, 08:39 UTCMay 26, 09:09 UTC30m
2026-05-25 ETH909 ADD → BKO May 25, 17:00 UTCMay 25, 17:40 UTC40m
2026-05-22 ETH707 FRA → ADD May 22, 20:35 UTCMay 22, 23:55 UTC3h 20m
2026-05-22 ETH706 ADD → FRA May 22, 01:10 UTCMay 22, 04:20 UTC3h 10m
2026-05-19 ETH739 GVA → ADD May 19, 19:20 UTCMay 19, 21:35 UTC2h 15m
2026-05-19 ETH739 GVA → ADD May 19, 17:15 UTCMay 19, 18:10 UTC55m
2026-05-19 ETH738 ADD → GVA May 19, 05:50 UTCMay 19, 06:55 UTC1h 5m
2026-05-19 ETH738 ADD → GVA May 19, 01:35 UTCMay 19, 04:25 UTC2h 50m
2026-05-17 ETH713 FCO → ADD May 17, 21:15 UTCMay 17, 22:50 UTC1h 35m
2026-05-16 ETH712 ADD → FCO May 16, 08:51 UTCMay 17, 03:45 UTC18h 55m
2026-05-14 ETH727 FCO → ADD May 14, 22:20 UTCMay 15, 17:25 UTC19h 4m
2026-05-14 ETH727 FCO → ADD May 14, 21:25 UTCMay 15, 17:25 UTC19h 59m
2026-05-14 ETH727 FCO → ADD May 14, 18:25 UTCMay 14, 20:05 UTC1h 40m
2026-05-14 ETH726 MRS → MAN May 14, 06:05 UTCMay 14, 07:50 UTC1h 45m
2026-05-13 ETH726 MRS → MAN May 13, 13:10 UTCMay 14, 04:55 UTC15h 45m
2026-05-13 ETH809 ADD → JNB May 13, 08:00 UTCMay 13, 11:30 UTC3h 30m
2026-05-10 ETH735 CDG → ADD May 10, 20:09 UTCMay 10, 23:29 UTC3h 20m
2026-05-10 ETH734 ADD → CDG May 10, 00:45 UTCMay 10, 04:45 UTC4h 0m
2026-05-08 ETH707 FRA → ADD May 8, 20:30 UTCMay 8, 23:50 UTC3h 20m
2026-05-08 ETH706 ADD → FRA May 8, 01:29 UTCMay 8, 04:34 UTC3h 5m
2026-05-06 ETH604 ADD → PEK May 6, 08:01 UTCMay 6, 08:20 UTC20m
2026-05-05 ETH908 BKO → ADD May 5, 08:25 UTCMay 5, 09:00 UTC35m
2026-05-03 ETH909 ADD → BKO May 3, 23:45 UTCMay 4, 17:25 UTC17h 40m
2026-05-03 ETH605 PEK → ADD May 3, 16:30 UTCMay 3, 23:45 UTC7h 15m
2026-05-03 ETH604 ADD → PEK May 3, 07:55 UTCMay 3, 08:15 UTC20m
2026-05-02 ETH507 GRU → ADD May 2, 06:20 UTCMay 3, 01:50 UTC19h 30m
2026-05-02 ETH507 GRU → ADD May 2, 05:55 UTCMay 3, 01:50 UTC19h 55m
2026-05-02 ETH507 GRU → ADD May 2, 02:10 UTCMay 2, 04:20 UTC2h 10m
2026-05-01 ETH506 ADD → GRU May 1, 22:20 UTCMay 2, 00:50 UTC2h 30m
2026-05-01 ETH506 ADD → GRU May 1, 13:05 UTCMay 1, 20:50 UTC7h 45m
2026-04-30 ETH506 ADD → GRU Apr 30, 22:20 UTCMay 1, 20:50 UTC22h 30m
2026-04-30 ETH751 BRU → ADD Apr 30, 20:20 UTCMay 1, 20:15 UTC23h 55m
2026-04-30 ETH751 BRU → ADD Apr 30, 19:55 UTCMay 1, 13:15 UTC17h 20m
2026-04-30 ETH750 ADD → BRU Apr 30, 02:10 UTCApr 30, 05:20 UTC3h 10m
2026-04-29 ETH750 ADD → BRU Apr 29, 06:45 UTCApr 30, 05:20 UTC22h 35m
2026-04-29 ETH507 GRU → ADD Apr 29, 02:55 UTCApr 29, 05:00 UTC2h 5m
2026-04-28 ETH506 ADD → GRU Apr 28, 23:00 UTCApr 29, 01:30 UTC2h 30m
2026-04-28 ETH506 ADD → GRU Apr 28, 19:55 UTCApr 28, 21:35 UTC1h 40m
2026-04-27 ETH506 ADD → GRU Apr 27, 22:20 UTCApr 28, 21:35 UTC23h 15m
2026-04-27 ETH735 CDG → ADD Apr 27, 20:20 UTCApr 28, 20:15 UTC23h 55m
2026-04-27 ETH735 CDG → ADD Apr 27, 19:50 UTCApr 27, 22:50 UTC3h 0m
2026-04-27 ETH734 ADD → CDG Apr 27, 01:30 UTCApr 27, 05:05 UTC3h 35m
2026-04-25 ETH605 PEK → ADD Apr 25, 16:35 UTCApr 26, 00:05 UTC7h 30m
2026-04-23 ETH553 YYZ → ADD Apr 23, 15:00 UTCApr 24, 00:20 UTC9h 20m
2026-04-23 ETH552 ADD → DUB Apr 23, 04:05 UTCApr 23, 12:20 UTC8h 15m

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

Mode-S 040171 frequently asked

What is Mode-S code 040171?
040171 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AWN.
Where is Mode-S 040171 registered?
Mode-S code 040171 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040171 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040171, octal 01000561, decimal 262,513.
What flights does 040171 operate?
Mode-S 040171 has broadcast 20 distinct callsigns, including ETH506, ETH507, ETH735, ETH734, ETH729.