sensors Mode-S transponder

04008D

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-ARK · BOEING 777-200LR

Hex
04008D
Octal
01000215
Decimal
262,285
Country
ET
Tail
ET-ARK
Type
B77L
No current signal · last broadcast 13h ago
Flights observed
206
Distinct callsigns
20
Country
ET
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 04008D.

Country allocation

The ICAO 24-bit address 04008D 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
ETH3739 Ethiopian Airlines 13 2026-06-03
ETH3714 Ethiopian Airlines 10 2026-06-11
ETH3640 - 9 2026-07-06
ETH3785 - 8 2026-06-19
ETH3712 - 8 2026-06-17
ETH3750 Ethiopian Airlines 7 2026-06-08
ETH3685 - 7 2026-07-06
ETH3751 Ethiopian Airlines 6 2026-06-09
ETH3738 Ethiopian Airlines 6 2026-06-02
ETH3604 Ethiopian Airlines 6 2026-07-04
ETH3784 - 5 2026-06-21
ETH3720 Ethiopian Airlines 5 2026-06-08
ETH3718 Ethiopian Airlines 5 2026-05-05
ETH3704 Ethiopian Airlines 5 2026-06-05
ETH3702 - 5 2026-07-03
ETH3656 - 5 2026-06-22
ETH3618 - 5 2026-07-06
ETH3707 Ethiopian Airlines 4 2026-06-27
ETH3229 Ethiopian Airlines 4 2026-05-06
ETH3856 - 3 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 ETH3490 - Jul 16, 20:19 UTCJul 17, 14:35 UTC18h 15m
2026-07-16 ETH3490 - Jul 16, 09:20 UTCJul 17, 00:10 UTC14h 50m
2026-07-15 ETH3857 - Jul 15, 14:50 UTCJul 16, 06:10 UTC15h 20m
2026-07-15 ETH3856 - Jul 15, 03:25 UTCJul 15, 07:05 UTC3h 40m
2026-07-12 ETH3788 - Jul 12, 15:45 UTCJul 13, 07:45 UTC16h 0m
2026-07-07 ETH3603 - Jul 7, 17:00 UTCJul 7, 17:25 UTC25m
2026-07-06 ETH3685 - Jul 6, 11:30 UTCJul 6, 15:00 UTC3h 30m
2026-07-06 ETH3685 - Jul 6, 10:00 UTCJul 6, 10:15 UTC15m
2026-07-06 ETH3618 - Jul 6, 04:45 UTCJul 6, 07:40 UTC2h 55m
2026-07-06 ETH3640 - Jul 6, 02:10 UTCJul 6, 02:30 UTC20m
2026-07-05 ETH3640 - Jul 5, 17:30 UTCJul 5, 20:30 UTC3h 0m
2026-07-05 ETH3640 - Jul 5, 13:25 UTCJul 5, 15:00 UTC1h 35m
2026-07-04 ETH3604 LGG → LGG Jul 4, 13:20 UTCJul 5, 10:55 UTC21h 35m
2026-07-04 ETH3604 LGG → LGG Jul 4, 12:50 UTCJul 5, 10:55 UTC22h 5m
2026-07-03 ETH3702 - Jul 3, 15:20 UTCJul 4, 10:25 UTC19h 5m
2026-07-03 ETH3702 - Jul 3, 13:30 UTCJul 4, 10:25 UTC20h 55m
2026-07-03 ETH3702 - Jul 3, 12:40 UTCJul 4, 10:25 UTC21h 45m
2026-07-02 ETH3856 - Jul 2, 12:25 UTCJul 3, 06:00 UTC17h 35m
2026-07-02 ETH3685 - Jul 2, 09:20 UTCJul 3, 06:00 UTC20h 40m
2026-07-02 ETH3685 - Jul 2, 08:45 UTCJul 3, 06:00 UTC21h 15m
2026-07-02 ETH3685 - Jul 2, 07:25 UTCJul 2, 07:40 UTC15m
2026-07-02 ETH3673 - Jul 2, 04:30 UTCJul 2, 04:55 UTC25m
2026-07-02 ETH3673 - Jul 2, 01:50 UTCJul 2, 04:00 UTC2h 10m
2026-07-01 ETH3672 - Jul 1, 22:40 UTCJul 1, 23:05 UTC25m
2026-07-01 ETH3672 - Jul 1, 14:15 UTCJul 1, 18:55 UTC4h 40m
2026-07-01 ETH3672 GKE → OSL Jul 1, 10:25 UTCJul 1, 11:50 UTC1h 25m
2026-06-30 ETH3400 - Jun 30, 16:05 UTCJul 1, 08:40 UTC16h 35m
2026-06-30 ETH3622 ADD → DXB Jun 30, 07:30 UTCJun 30, 13:15 UTC5h 45m
2026-06-28 ETH3619 - Jun 28, 12:15 UTCJun 28, 15:14 UTC3h 0m
2026-06-28 ETH3619 - Jun 28, 07:40 UTCJun 28, 08:50 UTC1h 10m
2026-06-27 ETH3792 LGG → LGG Jun 27, 19:15 UTCJun 28, 05:24 UTC10h 10m
2026-06-27 ETH3707 LGG → HKG Jun 27, 15:14 UTCJun 27, 17:20 UTC2h 5m
2026-06-27 ETH3793 - Jun 27, 07:30 UTCJun 27, 13:15 UTC5h 45m
2026-06-27 ETH3793 - Jun 27, 02:14 UTCJun 27, 02:29 UTC15m
2026-06-26 ETH3218 - Jun 26, 21:55 UTCJun 26, 22:19 UTC25m
2026-06-26 ETH3218 - Jun 26, 05:55 UTCJun 26, 21:10 UTC15h 15m
2026-06-26 ETH3610 - Jun 26, 02:05 UTCJun 26, 03:05 UTC1h 0m
2026-06-24 ETH3638 ADD → KUL Jun 24, 10:30 UTCJun 24, 17:34 UTC7h 5m
2026-06-23 ETH3605 - Jun 23, 14:35 UTCJun 24, 07:44 UTC17h 10m
2026-06-23 ETH3605 - Jun 23, 11:19 UTCJun 24, 07:44 UTC20h 25m
2026-06-23 ETH3604 LGG → LGG Jun 23, 09:20 UTCJun 24, 07:44 UTC22h 25m
2026-06-23 ETH3604 LGG → LGG Jun 23, 09:09 UTCJun 24, 07:15 UTC22h 5m
2026-06-22 ETH3702 - Jun 22, 11:19 UTCJun 23, 06:24 UTC19h 5m
2026-06-22 ETH3702 - Jun 22, 09:45 UTCJun 23, 06:24 UTC20h 40m
2026-06-22 ETH3656 - Jun 22, 01:29 UTCJun 22, 04:30 UTC3h 0m
2026-06-21 ETH3656 - Jun 21, 07:45 UTCJun 22, 04:30 UTC20h 45m
2026-06-21 ETH3219 HKG → ADD Jun 21, 07:00 UTCJun 21, 07:14 UTC15m
2026-06-21 ETH3784 - Jun 21, 03:49 UTCJun 21, 04:20 UTC30m
2026-06-20 ETH3784 - Jun 20, 15:54 UTCJun 20, 19:34 UTC3h 40m
2026-06-19 ETH3785 - Jun 19, 19:49 UTCJun 20, 10:39 UTC14h 50m

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

Mode-S 04008D frequently asked

What is Mode-S code 04008D?
04008D is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ARK.
Where is Mode-S 04008D registered?
Mode-S code 04008D is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 04008D broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 04008D, octal 01000215, decimal 262,285.
What flights does 04008D operate?
Mode-S 04008D has broadcast 20 distinct callsigns, including ETH3739, ETH3714, ETH3640, ETH3785, ETH3712.