Apparatus

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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
Broadcasting now · callsign ETH728 · 19,900 ft
Flights observed
63
Distinct callsigns
20
Country
ET
Last broadcast
1h ago

Current position

04004A is currently broadcasting. Map zoomed to live position.

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
ETH617 Ethiopian Airlines 7 2026-04-19
ETH574 Ethiopian Airlines 7 2026-06-01
ETH575 Ethiopian Airlines 5 2026-06-01
ETH515 Ethiopian Airlines 5 2026-05-25
ETH553 Ethiopian Airlines 4 2026-05-17
ETH725 Ethiopian Airlines 3 2026-05-20
ETH616 Ethiopian Airlines 3 2026-04-17
ETH514 Ethiopian Airlines 3 2026-05-24
ETH741 Ethiopian Airlines 2 2026-05-12
ETH739 Ethiopian Airlines 2 2026-05-23
ETH738 Ethiopian Airlines 2 2026-05-23
ETH727 Ethiopian Airlines 2 2026-05-26
ETH726 Ethiopian Airlines 2 2026-05-26
ETH724 Ethiopian Airlines 2 2026-05-20
ETH552 Ethiopian Airlines 2 2026-05-17
ETH909 Ethiopian Airlines 1 2026-04-17
ETH858 Ethiopian Airlines 1 2026-04-20
ETH740 Ethiopian Airlines 1 2026-05-12
ETH728 Ethiopian Airlines 1 2026-06-03
ETH719 Ethiopian Airlines 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 ETH728 GVA → MAN Jun 3, 01:20 UTCJun 3, 02:30 UTC1h 10m
2026-06-01 ETH575 ORD → ADD Jun 1, 15:35 UTCJun 2, 01:40 UTC10h 5m
2026-06-01 ETH574 DUB → ORD Jun 1, 03:20 UTCJun 1, 12:30 UTC9h 10m
2026-05-31 ETH574 DUB → ORD May 31, 13:45 UTCJun 1, 01:55 UTC12h 10m
2026-05-29 ETH519 ATL → ADD May 29, 15:15 UTCMay 30, 01:25 UTC10h 11m
2026-05-29 ETH518 ADD → DUB May 29, 02:50 UTCMay 29, 12:35 UTC9h 45m
2026-05-28 ETH719 LGW → ADD May 28, 10:00 UTCMay 29, 01:25 UTC15h 25m
2026-05-28 ETH718 ADD → LGW May 28, 01:20 UTCMay 28, 05:05 UTC3h 45m
2026-05-26 ETH727 FCO → ADD May 26, 21:20 UTCMay 27, 00:00 UTC2h 40m
2026-05-26 ETH727 FCO → ADD May 26, 18:05 UTCMay 26, 19:55 UTC1h 50m
2026-05-26 ETH726 MRS → MAN May 26, 05:34 UTCMay 26, 07:15 UTC1h 40m
2026-05-25 ETH726 MRS → MAN May 25, 10:00 UTCMay 26, 04:04 UTC18h 4m
2026-05-25 ETH515 LFW → ADD May 25, 03:55 UTCMay 26, 02:29 UTC22h 34m
2026-05-24 ETH514 LFW → JFK May 24, 17:00 UTCMay 24, 23:46 UTC6h 46m
2026-05-23 ETH739 GVA → ADD May 23, 22:35 UTCMay 24, 17:45 UTC19h 10m
2026-05-23 ETH739 GVA → ADD May 23, 20:35 UTCMay 24, 17:45 UTC21h 10m
2026-05-23 ETH738 ADD → GVA May 23, 00:50 UTCMay 23, 04:35 UTC3h 44m
2026-05-22 ETH738 ADD → GVA May 22, 09:20 UTCMay 23, 04:35 UTC19h 14m
2026-05-22 ETH515 LFW → ADD May 22, 02:50 UTCMay 23, 02:30 UTC23h 39m
2026-05-21 ETH514 LFW → JFK May 21, 15:10 UTCMay 21, 23:40 UTC8h 30m
2026-05-20 ETH725 VIE → ADD May 20, 20:35 UTCMay 21, 16:05 UTC19h 30m
2026-05-20 ETH725 VIE → ADD May 20, 20:20 UTCMay 21, 16:05 UTC19h 45m
2026-05-20 ETH725 VIE → ADD May 20, 17:45 UTCMay 20, 19:00 UTC1h 15m
2026-05-20 ETH724 VIE → BRU May 20, 05:40 UTCMay 20, 06:55 UTC1h 15m
2026-05-19 ETH724 VIE → BRU May 19, 09:30 UTCMay 20, 04:10 UTC18h 40m
2026-05-19 ETH513 JFK → ABJ May 19, 03:25 UTCMay 20, 02:30 UTC23h 5m
2026-05-18 ETH512 LFW → JFK May 18, 15:40 UTCMay 19, 00:10 UTC8h 29m
2026-05-17 ETH553 YYZ → ADD May 17, 22:35 UTCMay 18, 22:25 UTC23h 49m
2026-05-17 ETH553 YYZ → ADD May 17, 20:40 UTCMay 18, 16:35 UTC19h 55m
2026-05-17 ETH553 YYZ → ADD May 17, 16:35 UTCMay 18, 16:30 UTC23h 55m
2026-05-17 ETH553 YYZ → ADD May 17, 15:31 UTCMay 18, 00:20 UTC8h 50m
2026-05-17 ETH552 ADD → DUB May 17, 04:50 UTCMay 17, 13:25 UTC8h 35m
2026-05-16 ETH552 ADD → DUB May 16, 09:10 UTCMay 17, 03:15 UTC18h 5m
2026-05-16 ETH515 LFW → ADD May 16, 02:45 UTCMay 17, 02:30 UTC23h 45m
2026-05-15 ETH514 LFW → JFK May 15, 15:15 UTCMay 15, 23:55 UTC8h 40m
2026-05-14 ETH517 LFW → ADD May 14, 03:15 UTCMay 14, 15:55 UTC12h 40m
2026-05-13 ETH516 LFW → IAD May 13, 14:55 UTCMay 14, 00:05 UTC9h 10m
2026-05-12 ETH741 MAD → ADD May 12, 22:45 UTCMay 13, 22:30 UTC23h 45m
2026-05-12 ETH741 MAD → ADD May 12, 21:20 UTCMay 13, 15:55 UTC18h 35m
2026-05-12 ETH740 ADD → MAD May 12, 02:50 UTCMay 12, 04:25 UTC1h 35m
2026-04-20 ETH858 JNB → ADD Apr 20, 21:05 UTCApr 21, 00:25 UTC3h 20m
2026-04-19 ETH617 CAN → ADD Apr 19, 23:10 UTCApr 20, 17:50 UTC18h 40m
2026-04-19 ETH617 CAN → ADD Apr 19, 21:40 UTCApr 20, 17:50 UTC20h 10m
2026-04-18 ETH617 CAN → ADD Apr 18, 23:05 UTCApr 19, 16:15 UTC17h 10m
2026-04-18 ETH617 CAN → ADD Apr 18, 14:35 UTCApr 19, 02:45 UTC12h 10m
2026-04-17 ETH616 ADD → CAN Apr 17, 19:15 UTCApr 18, 15:40 UTC20h 25m
2026-04-17 ETH909 ADD → BKO Apr 17, 16:45 UTCApr 17, 17:15 UTC30m
2026-04-17 ETH575 ORD → ADD Apr 17, 01:20 UTCApr 17, 01:40 UTC20m
2026-04-16 ETH575 ORD → ADD Apr 16, 23:20 UTCApr 17, 01:15 UTC1h 55m
2026-04-16 ETH575 ORD → ADD Apr 16, 21:45 UTCApr 16, 23:10 UTC1h 25m

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?
Yes. Mode-S 04004A is currently airborne.
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 ETH617, ETH574, ETH575, ETH515, ETH553.