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sensors Mode-S transponder

04004A

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-AOT · BOEING 787-8 Dreamliner

Hex
04004A
Octal
01000112
Decimal
262,218
Country
ET
Tail
ET-AOT
Type
B788
No current signal · last broadcast 5h ago
Flights observed
160
Distinct callsigns
20
Country
ET
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 04004A.

Country allocation

The ICAO 24-bit address 04004A 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
ETH574 - 22 2026-07-08
ETH575 - 19 2026-07-08
ETH518 - 14 2026-07-17
ETH519 - 10 2026-07-17
ETH553 - 8 2026-07-12
ETH512 - 8 2026-07-01
ETH617 Ethiopian Airlines 7 2026-04-19
ETH552 - 6 2026-07-12
ETH515 Ethiopian Airlines 6 2026-06-05
ETH718 - 5 2026-06-29
ETH514 Ethiopian Airlines 5 2026-06-04
ETH513 - 5 2026-07-02
ETH725 Ethiopian Airlines 3 2026-05-20
ETH719 - 3 2026-06-29
ETH714 - 3 2026-06-20
ETH672 - 3 2026-06-26
ETH616 Ethiopian Airlines 3 2026-04-17
ETH909 - 2 2026-06-16
ETH858 - 2 2026-07-13
ETH741 Ethiopian Airlines 2 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 ETH519 - Jul 17, 21:30 UTCJul 18, 01:39 UTC4h 10m
2026-07-17 ETH519 - Jul 17, 14:55 UTCJul 17, 16:29 UTC1h 35m
2026-07-17 ETH518 - Jul 17, 02:54 UTCJul 17, 12:35 UTC9h 40m
2026-07-16 ETH518 - Jul 16, 22:45 UTCJul 17, 01:15 UTC2h 30m
2026-07-16 ETH519 - Jul 16, 00:35 UTCJul 17, 00:30 UTC23h 55m
2026-07-15 ETH519 - Jul 15, 15:05 UTCJul 16, 02:15 UTC11h 10m
2026-07-15 ETH518 FCO → ATL Jul 15, 02:50 UTCJul 15, 12:40 UTC9h 50m
2026-07-14 ETH518 - Jul 14, 15:40 UTCJul 15, 01:05 UTC9h 24m
2026-07-13 ETH858 - Jul 13, 21:00 UTCJul 14, 15:40 UTC18h 40m
2026-07-13 ETH849 - Jul 13, 00:35 UTCJul 13, 19:00 UTC18h 25m
2026-07-12 ETH553 - Jul 12, 22:35 UTCJul 13, 19:00 UTC20h 25m
2026-07-12 ETH553 - Jul 12, 20:50 UTCJul 13, 19:00 UTC22h 10m
2026-07-12 ETH553 - Jul 12, 15:15 UTCJul 13, 01:05 UTC9h 50m
2026-07-12 ETH552 - Jul 12, 04:01 UTCJul 12, 12:25 UTC8h 25m
2026-07-11 ETH552 - Jul 11, 15:00 UTCJul 12, 02:25 UTC11h 25m
2026-07-10 ETH519 - Jul 10, 15:05 UTCJul 11, 02:05 UTC11h 0m
2026-07-10 ETH518 - Jul 10, 02:55 UTCJul 10, 12:50 UTC9h 55m
2026-07-09 ETH518 - Jul 9, 22:30 UTCJul 10, 01:05 UTC2h 35m
2026-07-09 ETH518 - Jul 9, 00:35 UTCJul 10, 00:30 UTC23h 55m
2026-07-08 ETH575 - Jul 8, 22:35 UTCJul 9, 22:30 UTC23h 55m
2026-07-08 ETH575 - Jul 8, 15:30 UTCJul 9, 01:40 UTC10h 10m
2026-07-08 ETH574 - Jul 8, 03:20 UTCJul 8, 12:40 UTC9h 20m
2026-07-07 ETH574 - Jul 7, 13:35 UTCJul 8, 01:40 UTC12h 5m
2026-07-05 ETH519 - Jul 5, 14:50 UTCJul 6, 00:50 UTC10h 0m
2026-07-05 ETH518 - Jul 5, 02:50 UTCJul 5, 12:30 UTC9h 40m
2026-07-04 ETH518 - Jul 4, 23:15 UTCJul 5, 01:15 UTC2h 0m
2026-07-04 ETH518 - Jul 4, 00:35 UTCJul 5, 00:30 UTC23h 55m
2026-07-03 ETH553 YYZ → ADD Jul 3, 16:05 UTCJul 4, 01:45 UTC9h 40m
2026-07-03 ETH552 - Jul 3, 04:50 UTCJul 3, 13:35 UTC8h 45m
2026-07-02 ETH552 - Jul 2, 09:10 UTCJul 3, 03:00 UTC17h 50m
2026-07-02 ETH513 - Jul 2, 02:45 UTCJul 2, 15:25 UTC12h 40m
2026-07-01 ETH512 - Jul 1, 15:50 UTCJul 1, 23:50 UTC8h 0m
2026-07-01 ETH512 - Jul 1, 00:35 UTCJul 1, 23:50 UTC23h 15m
2026-06-30 ETH575 ORD → ADD Jun 30, 22:35 UTCJul 1, 16:45 UTC18h 10m
2026-06-30 ETH575 ORD → ADD Jun 30, 21:25 UTCJul 1, 16:45 UTC19h 20m
2026-06-30 ETH575 ORD → ADD Jun 30, 16:35 UTCJul 1, 16:30 UTC23h 55m
2026-06-30 ETH575 ORD → ADD Jun 30, 15:50 UTCJul 1, 02:00 UTC10h 10m
2026-06-30 ETH574 - Jun 30, 03:30 UTCJun 30, 12:50 UTC9h 20m
2026-06-29 ETH719 - Jun 29, 09:50 UTCJun 30, 01:50 UTC16h 0m
2026-06-29 ETH718 - Jun 29, 01:29 UTCJun 29, 04:50 UTC3h 20m
2026-06-28 ETH718 - Jun 28, 09:10 UTCJun 29, 04:50 UTC19h 40m
2026-06-28 ETH513 - Jun 28, 02:54 UTCJun 29, 02:30 UTC23h 35m
2026-06-27 ETH512 - Jun 27, 15:24 UTCJun 27, 23:39 UTC8h 15m
2026-06-26 ETH512 - Jun 26, 22:25 UTCJun 27, 16:20 UTC17h 55m
2026-06-26 ETH512 - Jun 26, 16:49 UTCJun 27, 16:20 UTC23h 30m
2026-06-26 ETH673 - Jun 26, 15:39 UTCJun 27, 00:14 UTC8h 35m
2026-06-26 ETH673 - Jun 26, 12:14 UTCJun 26, 14:15 UTC2h 0m
2026-06-26 ETH672 ICN → NRT Jun 26, 08:45 UTCJun 26, 10:39 UTC1h 55m
2026-06-26 ETH672 - Jun 26, 06:45 UTCJun 26, 07:05 UTC20m
2026-06-26 ETH672 - Jun 26, 01:10 UTCJun 26, 05:55 UTC4h 45m

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

Mode-S 04004A frequently asked

What is Mode-S code 04004A?
04004A is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AOT.
Where is Mode-S 04004A registered?
Mode-S code 04004A is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 04004A broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 04004A, octal 01000112, decimal 262,218.
What flights does 04004A operate?
Mode-S 04004A has broadcast 20 distinct callsigns, including ETH574, ETH575, ETH518, ETH519, ETH553.