Apparatus

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sensors Mode-S transponder

04004B

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
04004B
Octal
01000113
Decimal
262,219
Country
ET
Tail
ET-AOU
Type
B788
Broadcasting now · callsign ETH714 · 20,250 ft
Flights observed
75
Distinct callsigns
20
Country
ET
Last broadcast
1h ago

Current position

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

Country allocation

The ICAO 24-bit address 04004B 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
ETH644 Ethiopian Airlines 10 2026-04-23
ETH645 Ethiopian Airlines 9 2026-04-23
ETH512 Ethiopian Airlines 7 2026-05-04
ETH514 Ethiopian Airlines 5 2026-05-26
ETH513 Ethiopian Airlines 5 2026-05-05
ETH730 Ethiopian Airlines 4 2026-05-28
ETH574 Ethiopian Airlines 4 2026-05-02
ETH553 Ethiopian Airlines 3 2026-05-21
ETH516 - 3 2026-04-13
ETH515 Ethiopian Airlines 3 2026-05-27
ETH909 Ethiopian Airlines 2 2026-04-24
ETH731 Ethiopian Airlines 2 2026-05-28
ETH725 Ethiopian Airlines 2 2026-04-27
ETH724 Ethiopian Airlines 2 2026-04-27
ETH718 Ethiopian Airlines 2 2026-04-20
ETH600 Ethiopian Airlines 2 2026-05-03
ETH575 Ethiopian Airlines 2 2026-05-02
ETH552 Ethiopian Airlines 2 2026-05-21
ETH849 Ethiopian Airlines 1 2026-05-25
ETH719 Ethiopian Airlines 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ETH714 ADD → ARN May 29, 07:40 UTCMay 30, 04:45 UTC21h 5m
2026-05-28 ETH731 DUB → ADD May 28, 20:30 UTCMay 29, 07:40 UTC11h 10m
2026-05-28 ETH731 DUB → ADD May 28, 17:50 UTCMay 28, 18:40 UTC50m
2026-05-28 ETH730 VIE → BRU May 28, 05:10 UTCMay 28, 06:05 UTC55m
2026-05-27 ETH730 VIE → BRU May 27, 08:50 UTCMay 28, 04:00 UTC19h 10m
2026-05-27 ETH730 VIE → BRU May 27, 08:15 UTCMay 28, 04:00 UTC19h 45m
2026-05-27 ETH730 VIE → BRU May 27, 02:49 UTCMay 28, 02:45 UTC23h 55m
2026-05-27 ETH515 LFW → ADD May 27, 02:14 UTCMay 27, 09:10 UTC6h 55m
2026-05-26 ETH514 LFW → JFK May 26, 16:50 UTCMay 26, 23:54 UTC7h 5m
2026-05-26 ETH514 LFW → JFK May 26, 00:09 UTCMay 26, 22:44 UTC22h 35m
2026-05-25 ETH514 LFW → JFK May 25, 20:59 UTCMay 26, 17:30 UTC20h 30m
2026-05-25 ETH849 ADD → JNB May 25, 14:35 UTCMay 25, 18:15 UTC3h 40m
2026-05-23 ETH515 LFW → ADD May 23, 02:50 UTCMay 23, 09:55 UTC7h 5m
2026-05-22 ETH514 LFW → JFK May 22, 15:35 UTCMay 23, 00:10 UTC8h 35m
2026-05-21 ETH553 YYZ → ADD May 21, 20:50 UTCMay 22, 16:30 UTC19h 40m
2026-05-21 ETH553 YYZ → ADD May 21, 20:00 UTCMay 22, 16:30 UTC20h 30m
2026-05-21 ETH553 YYZ → ADD May 21, 15:10 UTCMay 21, 23:50 UTC8h 40m
2026-05-21 ETH552 ADD → DUB May 21, 04:05 UTCMay 21, 12:45 UTC8h 40m
2026-05-21 ETH552 ADD → DUB May 21, 00:35 UTCMay 21, 02:35 UTC2h 0m
2026-05-14 ETH689 DEL → ADD May 14, 04:35 UTCMay 14, 05:05 UTC30m
2026-05-14 ETH686 ADD → DEL May 14, 01:40 UTCMay 14, 02:25 UTC45m
2026-05-05 ETH513 JFK → ABJ May 5, 02:35 UTCMay 5, 09:45 UTC7h 10m
2026-05-04 ETH512 LFW → JFK May 4, 16:25 UTCMay 5, 00:15 UTC7h 51m
2026-05-04 ETH512 LFW → JFK May 4, 01:05 UTCMay 5, 00:15 UTC23h 11m
2026-05-03 ETH600 ADD → DXB May 3, 22:54 UTCMay 3, 23:25 UTC30m
2026-05-03 ETH600 ADD → DXB May 3, 00:55 UTCMay 3, 23:25 UTC22h 29m
2026-05-02 ETH575 ORD → ADD May 2, 15:30 UTCMay 3, 02:00 UTC10h 30m
2026-05-02 ETH574 DUB → ORD May 2, 03:25 UTCMay 2, 12:40 UTC9h 15m
2026-05-01 ETH574 DUB → ORD May 1, 23:25 UTCMay 2, 01:55 UTC2h 30m
2026-04-29 ETH575 ORD → ADD Apr 29, 16:15 UTCApr 30, 02:55 UTC10h 39m
2026-04-29 ETH574 DUB → ORD Apr 29, 03:55 UTCApr 29, 13:20 UTC9h 26m
2026-04-28 ETH574 DUB → ORD Apr 28, 14:00 UTCApr 29, 02:09 UTC12h 10m
2026-04-27 ETH725 VIE → ADD Apr 27, 20:35 UTCApr 28, 14:25 UTC17h 50m
2026-04-27 ETH725 VIE → ADD Apr 27, 18:00 UTCApr 27, 19:10 UTC1h 10m
2026-04-27 ETH724 VIE → BRU Apr 27, 05:35 UTCApr 27, 06:55 UTC1h 20m
2026-04-26 ETH724 VIE → BRU Apr 26, 09:25 UTCApr 27, 04:15 UTC18h 50m
2026-04-26 ETH513 JFK → ABJ Apr 26, 03:40 UTCApr 27, 02:45 UTC23h 5m
2026-04-25 ETH512 LFW → JFK Apr 25, 16:10 UTCApr 26, 00:55 UTC8h 45m
2026-04-24 ETH512 LFW → JFK Apr 24, 19:05 UTCApr 25, 16:50 UTC21h 45m
2026-04-24 ETH909 ADD → BKO Apr 24, 16:30 UTCApr 24, 17:10 UTC40m
2026-04-23 ETH909 ADD → BKO Apr 23, 21:50 UTCApr 24, 17:10 UTC19h 20m
2026-04-23 ETH645 HKG → ADD Apr 23, 18:50 UTCApr 24, 17:10 UTC22h 20m
2026-04-23 ETH645 HKG → ADD Apr 23, 17:05 UTCApr 23, 17:15 UTC10m
2026-04-23 ETH645 HKG → ADD Apr 23, 14:55 UTCApr 23, 15:10 UTC15m
2026-04-23 ETH645 HKG → ADD Apr 23, 13:30 UTCApr 23, 14:05 UTC35m
2026-04-23 ETH644 HKG → MNL Apr 23, 08:05 UTCApr 23, 09:45 UTC1h 40m
2026-04-23 ETH644 HKG → MNL Apr 23, 05:50 UTCApr 23, 06:20 UTC30m
2026-04-22 ETH644 HKG → MNL Apr 22, 08:50 UTCApr 23, 04:00 UTC19h 10m
2026-04-22 ETH644 HKG → MNL Apr 22, 08:15 UTCApr 23, 04:00 UTC19h 45m
2026-04-22 ETH515 LFW → ADD Apr 22, 02:00 UTCApr 22, 09:05 UTC7h 5m

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

Mode-S 04004B frequently asked

What is Mode-S code 04004B?
04004B is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AOU.
Where is Mode-S 04004B registered?
Mode-S code 04004B is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 04004B broadcasting right now?
Yes. Mode-S 04004B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 04004B, octal 01000113, decimal 262,219.
What flights does 04004B operate?
Mode-S 04004B has broadcast 20 distinct callsigns, including ETH644, ETH645, ETH512, ETH514, ETH513.