Apparatus

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sensors Mode-S transponder

040159

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
040159
Octal
01000531
Decimal
262,489
Country
ET
Tail
ET-AVQ
Type
B77L
No current signal · last broadcast 1d ago
Flights observed
229
Distinct callsigns
20
Country
ET
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 040159.

Country allocation

The ICAO 24-bit address 040159 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
ETH3651 Ethiopian Airlines 19 2026-05-31
ETH3640 - 13 2026-06-29
ETH3739 - 12 2026-07-05
ETH3618 - 10 2026-06-30
ETH3652 Ethiopian Airlines 9 2026-05-31
ETH3516 Ethiopian Airlines 9 2026-05-17
ETH3518 Ethiopian Airlines 8 2026-05-17
ETH3605 - 7 2026-06-18
ETH3502 Ethiopian Airlines 7 2026-05-16
ETH3400 Ethiopian Airlines 7 2026-04-17
ETH3712 - 6 2026-07-11
ETH3690 - 6 2026-05-29
ETH3720 - 5 2026-07-03
ETH3707 Ethiopian Airlines 5 2026-07-02
ETH3685 - 5 2026-06-30
ETH3290 Ethiopian Airlines 5 2026-06-01
ETH3785 - 4 2026-06-14
ETH3751 - 4 2026-07-10
ETH3738 - 4 2026-07-03
ETH3715 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ETH3872 - Jul 13, 05:45 UTCJul 13, 06:10 UTC25m
2026-07-12 ETH3715 - Jul 12, 16:25 UTCJul 13, 02:25 UTC10h 0m
2026-07-11 ETH3712 - Jul 11, 21:45 UTCJul 12, 13:10 UTC15h 25m
2026-07-11 ETH3219 - Jul 11, 18:35 UTCJul 11, 20:35 UTC2h 0m
2026-07-11 ETH3219 - Jul 11, 16:45 UTCJul 11, 17:00 UTC15m
2026-07-10 ETH3600 - Jul 10, 18:20 UTCJul 11, 14:15 UTC19h 56m
2026-07-10 ETH3600 - Jul 10, 16:20 UTCJul 11, 14:15 UTC21h 55m
2026-07-10 ETH3751 - Jul 10, 15:10 UTCJul 11, 14:15 UTC23h 6m
2026-07-10 ETH3656 - Jul 10, 04:55 UTCJul 10, 08:50 UTC3h 55m
2026-07-08 ETH3723 - Jul 8, 11:05 UTCJul 8, 11:35 UTC30m
2026-07-08 ETH3421 - Jul 8, 07:25 UTCJul 8, 08:45 UTC1h 20m
2026-07-07 ETH3421 - Jul 7, 10:20 UTCJul 8, 08:45 UTC22h 25m
2026-07-07 ETH3751 - Jul 7, 08:20 UTCJul 8, 08:15 UTC23h 55m
2026-07-06 ETH3751 - Jul 6, 20:05 UTCJul 7, 10:20 UTC14h 15m
2026-07-06 ETH3656 - Jul 6, 09:25 UTCJul 7, 08:15 UTC22h 50m
2026-07-05 ETH3711 - Jul 5, 20:55 UTCJul 6, 07:10 UTC10h 15m
2026-07-05 ETH3739 - Jul 5, 03:25 UTCJul 5, 18:35 UTC15h 10m
2026-07-04 ETH3739 - Jul 4, 20:20 UTCJul 5, 18:35 UTC22h 15m
2026-07-04 ETH3739 - Jul 4, 18:45 UTCJul 5, 18:15 UTC23h 30m
2026-07-04 ETH3739 - Jul 4, 07:05 UTCJul 4, 16:45 UTC9h 40m
2026-07-03 ETH3739 - Jul 3, 21:55 UTCJul 4, 16:45 UTC18h 50m
2026-07-03 ETH3739 - Jul 3, 18:40 UTCJul 4, 16:45 UTC22h 5m
2026-07-03 ETH3738 - Jul 3, 14:20 UTCJul 4, 13:35 UTC23h 15m
2026-07-03 ETH3738 - Jul 3, 13:25 UTCJul 4, 10:40 UTC21h 15m
2026-07-03 ETH3720 - Jul 3, 08:05 UTCJul 3, 11:10 UTC3h 5m
2026-07-02 ETH3638 - Jul 2, 12:10 UTCJul 2, 19:15 UTC7h 5m
2026-07-02 ETH3707 LGG → HKG Jul 2, 08:20 UTCJul 2, 09:50 UTC1h 30m
2026-07-01 ETH3707 LGG → HKG Jul 1, 23:20 UTCJul 2, 05:30 UTC6h 10m
2026-07-01 ETH3707 LGG → HKG Jul 1, 18:30 UTCJul 1, 18:45 UTC15m
2026-07-01 ETH3446 - Jul 1, 15:30 UTCJul 1, 15:55 UTC25m
2026-07-01 ETH3446 - Jul 1, 10:00 UTCJul 1, 14:45 UTC4h 45m
2026-06-30 ETH3685 - Jun 30, 11:30 UTCJul 1, 10:15 UTC22h 45m
2026-06-30 ETH3685 - Jun 30, 06:55 UTCJun 30, 11:50 UTC4h 55m
2026-06-30 ETH3618 - Jun 30, 04:25 UTCJun 30, 04:50 UTC25m
2026-06-30 ETH3618 - Jun 30, 01:45 UTCJun 30, 03:55 UTC2h 10m
2026-06-29 ETH3640 - Jun 29, 23:05 UTCJun 29, 23:34 UTC30m
2026-06-29 ETH3640 - Jun 29, 14:44 UTCJun 29, 19:24 UTC4h 40m
2026-06-29 ETH3640 BUD → OSL Jun 29, 10:55 UTCJun 29, 12:55 UTC2h 0m
2026-06-28 ETH3793 - Jun 28, 03:00 UTCJun 28, 08:39 UTC5h 40m
2026-06-27 ETH3793Z - Jun 27, 21:50 UTCJun 27, 22:04 UTC15m
2026-06-27 ETH3365 BUD → HKG Jun 27, 08:49 UTCJun 27, 18:54 UTC10h 5m
2026-06-26 ETH3707 LGG → HKG Jun 26, 23:04 UTCJun 27, 04:44 UTC5h 40m
2026-06-26 ETH3707 LGG → HKG Jun 26, 17:50 UTCJun 26, 18:04 UTC15m
2026-06-26 ETH3708 - Jun 26, 04:04 UTCJun 26, 14:55 UTC10h 50m
2026-06-25 ETH3714 - Jun 25, 21:25 UTCJun 26, 01:15 UTC3h 50m
2026-06-24 ETH3857 - Jun 24, 10:19 UTCJun 24, 15:29 UTC5h 10m
2026-06-24 ETH3856 LGG → ADD Jun 24, 01:44 UTCJun 24, 05:09 UTC3h 25m
2026-06-23 ETH3559 - Jun 23, 15:50 UTCJun 23, 22:55 UTC7h 5m
2026-06-22 ETH3773 - Jun 22, 19:24 UTCJun 23, 11:40 UTC16h 15m
2026-06-22 ETH3482 - Jun 22, 01:15 UTCJun 22, 16:10 UTC14h 55m

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

Mode-S 040159 frequently asked

What is Mode-S code 040159?
040159 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AVQ.
Where is Mode-S 040159 registered?
Mode-S code 040159 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040159 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040159, octal 01000531, decimal 262,489.
What flights does 040159 operate?
Mode-S 040159 has broadcast 20 distinct callsigns, including ETH3651, ETH3640, ETH3739, ETH3618, ETH3652.