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sensors Mode-S transponder

040172

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
040172
Octal
01000562
Decimal
262,514
Country
ET
Tail
ET-AWO
Type
A359
No current signal · last broadcast 14h ago
Flights observed
141
Distinct callsigns
20
Country
ET
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 040172.

Country allocation

The ICAO 24-bit address 040172 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
ETH751 - 12 2026-07-15
ETH727 Ethiopian Airlines 10 2026-06-29
ETH726 - 10 2026-06-29
ETH750 - 9 2026-07-15
ETH673 Ethiopian Airlines 9 2026-05-28
ETH672 Ethiopian Airlines 9 2026-05-28
ETH729 Ethiopian Airlines 8 2026-05-22
ETH728 Ethiopian Airlines 8 2026-05-22
ETH809 - 4 2026-07-08
ETH737 Ethiopian Airlines 4 2026-04-29
ETH736 Ethiopian Airlines 4 2026-04-29
ETH706 - 4 2026-07-12
ETH506 - 4 2026-07-16
ETH707 - 3 2026-07-13
ETH645 Ethiopian Airlines 3 2026-06-21
ETH644 - 3 2026-06-21
ETH955 Ethiopian Airlines 2 2026-06-06
ETH925 Ethiopian Airlines 2 2026-05-11
ETH808 Ethiopian Airlines 2 2026-06-15
ETH735 Ethiopian Airlines 2 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 ETH507 - Jul 17, 05:35 UTCJul 17, 12:40 UTC7h 5m
2026-07-17 ETH507 EZE → GRU Jul 17, 01:59 UTCJul 17, 04:10 UTC2h 10m
2026-07-16 ETH506 - Jul 16, 21:50 UTCJul 17, 00:10 UTC2h 20m
2026-07-16 ETH506 - Jul 16, 18:34 UTCJul 16, 20:05 UTC1h 30m
2026-07-16 ETH506 - Jul 16, 11:45 UTCJul 16, 12:00 UTC15m
2026-07-16 ETH506 - Jul 16, 10:04 UTCJul 16, 10:25 UTC20m
2026-07-15 ETH751 - Jul 15, 20:20 UTCJul 15, 23:40 UTC3h 20m
2026-07-15 ETH750 - Jul 15, 01:05 UTCJul 15, 05:10 UTC4h 5m
2026-07-14 ETH846 - Jul 14, 13:30 UTCJul 14, 13:45 UTC15m
2026-07-13 ETH707 FRA → CPT Jul 13, 20:25 UTCJul 14, 12:05 UTC15h 40m
2026-07-12 ETH706 - Jul 12, 08:35 UTCJul 13, 03:45 UTC19h 10m
2026-07-10 ETH751 - Jul 10, 22:35 UTCJul 11, 17:30 UTC18h 55m
2026-07-10 ETH751 - Jul 10, 20:35 UTCJul 11, 17:30 UTC20h 55m
2026-07-10 ETH751 BRU → DSS Jul 10, 20:20 UTCJul 11, 17:30 UTC21h 11m
2026-07-09 ETH750 - Jul 9, 13:00 UTCJul 10, 04:45 UTC15h 45m
2026-07-08 ETH809 - Jul 8, 17:40 UTCJul 9, 11:30 UTC17h 50m
2026-07-07 ETH751 BRU → ADD Jul 7, 22:35 UTCJul 8, 17:45 UTC19h 10m
2026-07-07 ETH751 BRU → ADD Jul 7, 20:35 UTCJul 8, 17:45 UTC21h 10m
2026-07-07 ETH751 BRU → ADD Jul 7, 20:05 UTCJul 8, 17:45 UTC21h 40m
2026-07-06 ETH750 - Jul 6, 15:00 UTCJul 7, 06:00 UTC15h 0m
2026-07-04 ETH751 BRU → ADD Jul 4, 20:00 UTCJul 4, 23:35 UTC3h 35m
2026-07-03 ETH750 - Jul 3, 14:35 UTCJul 4, 04:55 UTC14h 20m
2026-07-01 ETH751 BRU → ADD Jul 1, 20:30 UTCJul 2, 00:20 UTC3h 50m
2026-07-01 ETH750 - Jul 1, 00:40 UTCJul 1, 04:35 UTC3h 55m
2026-06-29 ETH727 FCO → ADD Jun 29, 21:50 UTCJun 30, 00:55 UTC3h 5m
2026-06-29 ETH727 FCO → ADD Jun 29, 17:49 UTCJun 29, 19:44 UTC1h 55m
2026-06-29 ETH726 - Jun 29, 05:30 UTCJun 29, 07:09 UTC1h 40m
2026-06-29 ETH726 - Jun 29, 01:10 UTCJun 29, 03:34 UTC2h 25m
2026-06-27 ETH727 FCO → ADD Jun 27, 21:59 UTCJun 28, 00:20 UTC2h 20m
2026-06-27 ETH727 FCO → ADD Jun 27, 18:04 UTCJun 27, 19:49 UTC1h 45m
2026-06-27 ETH726 MRS → MAN Jun 27, 06:19 UTCJun 27, 07:59 UTC1h 40m
2026-06-27 ETH726 - Jun 27, 00:39 UTCJun 27, 03:40 UTC3h 0m
2026-06-25 ETH735 CDG → ADD Jun 25, 20:09 UTCJun 26, 00:10 UTC4h 0m
2026-06-24 ETH734 - Jun 24, 13:20 UTCJun 25, 04:29 UTC15h 10m
2026-06-23 ETH639 KUL → SIN Jun 23, 18:29 UTCJun 24, 11:39 UTC17h 10m
2026-06-23 ETH639 KUL → SIN Jun 23, 15:34 UTCJun 23, 16:14 UTC40m
2026-06-23 ETH638 - Jun 23, 09:40 UTCJun 23, 10:15 UTC35m
2026-06-22 ETH638 - Jun 22, 13:05 UTCJun 23, 06:34 UTC17h 30m
2026-06-21 ETH645 HKG → ADD Jun 21, 19:00 UTCJun 22, 11:35 UTC16h 35m
2026-06-21 ETH645 HKG → ADD Jun 21, 17:15 UTCJun 21, 17:29 UTC15m
2026-06-21 ETH645 HKG → ADD Jun 21, 13:39 UTCJun 21, 15:25 UTC1h 45m
2026-06-21 ETH644 HKG → MNL Jun 21, 08:54 UTCJun 21, 10:44 UTC1h 50m
2026-06-21 ETH644 - Jun 21, 06:40 UTCJun 21, 07:14 UTC35m
2026-06-21 ETH644 - Jun 21, 01:14 UTCJun 21, 05:54 UTC4h 40m
2026-06-18 ETH707 FRA → ADD Jun 18, 20:40 UTCJun 18, 23:40 UTC3h 0m
2026-06-18 ETH706 - Jun 18, 03:40 UTCJun 18, 04:05 UTC25m
2026-06-18 ETH706 - Jun 18, 00:15 UTCJun 18, 03:35 UTC3h 20m
2026-06-15 ETH808 JNB → ADD Jun 15, 13:00 UTCJun 15, 16:24 UTC3h 25m
2026-06-15 ETH809 - Jun 15, 10:50 UTCJun 15, 11:30 UTC40m
2026-06-14 ETH809 - Jun 14, 12:50 UTCJun 15, 11:30 UTC22h 40m

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

Mode-S 040172 frequently asked

What is Mode-S code 040172?
040172 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AWO.
Where is Mode-S 040172 registered?
Mode-S code 040172 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040172 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 040172, octal 01000562, decimal 262,514.
What flights does 040172 operate?
Mode-S 040172 has broadcast 20 distinct callsigns, including ETH751, ETH727, ETH726, ETH750, ETH673.