Apparatus

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sensors Mode-S transponder

040239

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-BAP · BOEING 737 MAX 8

Hex
040239
Octal
01001071
Decimal
262,713
Country
ET
Tail
ET-BAP
Type
B38M
No current signal · last broadcast Jul 26, 04:50 UTC
Flights observed
108
Distinct callsigns
20
Country
ET
Last broadcast
Jul 26, 04:50 UTC

Last known position

Most recent position reported by Mode-S 040239.

Country allocation

The ICAO 24-bit address 040239 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
ETH622 - 30 2026-07-18
ETH623 - 19 2026-07-16
ETH614 - 8 2026-07-20
ETH612 Ethiopian Airlines 6 2026-07-26
ETH406 - 5 2026-06-28
ETH615 Ethiopian Airlines 4 2026-07-21
ETH613 Ethiopian Airlines 4 2026-07-26
ETH407 - 4 2026-06-29
ETH963 Ethiopian Airlines 2 2026-06-05
ETH962 Ethiopian Airlines 2 2026-06-06
ETH686 Ethiopian Airlines 2 2026-04-13
ETH858 Ethiopian Airlines 1 2026-06-12
ETH849 Ethiopian Airlines 1 2026-06-12
ETH765 Ethiopian Airlines 1 2026-07-22
ETH764 Ethiopian Airlines 1 2026-07-22
ETH723 Ethiopian Airlines 1 2026-06-09
ETH720 Ethiopian Airlines 1 2026-06-09
ETH697 Ethiopian Airlines 1 2026-06-07
ETH696 Ethiopian Airlines 1 2026-06-07
ETH693 Ethiopian Airlines 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH613 DXB → ADD Jul 26, 04:20 UTCJul 26, 04:50 UTC30m
2026-07-26 ETH612 ADD → DXB Jul 26, 01:45 UTCJul 26, 02:15 UTC30m
2026-07-24 ETH613 DXB → ADD Jul 24, 02:40 UTCJul 24, 03:15 UTC35m
2026-07-24 ETH612 ADD → DXB Jul 24, 00:25 UTCJul 24, 01:00 UTC35m
2026-07-22 ETH765 ATH → ADD Jul 22, 13:05 UTCJul 22, 14:45 UTC1h 40m
2026-07-22 ETH764 ADD → ATH Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-21 ETH615 AUH → ADD Jul 21, 02:25 UTCJul 21, 02:55 UTC30m
2026-07-20 ETH614 - Jul 20, 22:55 UTCJul 20, 23:20 UTC25m
2026-07-18 ETH622 - Jul 18, 22:55 UTCJul 18, 23:35 UTC40m
2026-07-17 ETH615 - Jul 17, 00:55 UTCJul 17, 01:25 UTC30m
2026-07-16 ETH614 - Jul 16, 22:59 UTCJul 16, 23:20 UTC20m
2026-07-16 ETH623 - Jul 16, 01:15 UTCJul 16, 01:50 UTC35m
2026-07-15 ETH622 - Jul 15, 23:05 UTCJul 15, 23:45 UTC40m
2026-07-15 ETH622 - Jul 15, 01:15 UTCJul 15, 23:45 UTC22h 30m
2026-07-14 ETH614 - Jul 14, 22:50 UTCJul 14, 23:15 UTC25m
2026-07-14 ETH614 - Jul 14, 02:20 UTCJul 14, 23:15 UTC20h 54m
2026-07-14 ETH613 - Jul 14, 02:05 UTCJul 14, 23:15 UTC21h 9m
2026-07-13 ETH612 - Jul 13, 23:45 UTCJul 14, 00:15 UTC30m
2026-07-12 ETH429 - Jul 12, 00:45 UTCJul 12, 01:00 UTC15m
2026-07-11 ETH428 - Jul 11, 23:05 UTCJul 11, 23:25 UTC20m
2026-07-09 ETH613 - Jul 9, 02:05 UTCJul 9, 02:35 UTC30m
2026-07-08 ETH612 - Jul 8, 14:35 UTCJul 9, 00:10 UTC9h 35m
2026-07-07 ETH431 - Jul 7, 13:05 UTCJul 7, 13:20 UTC15m
2026-07-07 ETH430 - Jul 7, 10:35 UTCJul 7, 10:55 UTC20m
2026-07-06 ETH614 - Jul 6, 22:50 UTCJul 6, 23:15 UTC25m
2026-07-06 ETH615 - Jul 6, 01:20 UTCJul 6, 01:30 UTC10m
2026-07-05 ETH419 - Jul 5, 13:10 UTCJul 5, 23:10 UTC10h 0m
2026-07-05 ETH418 - Jul 5, 02:00 UTCJul 5, 11:25 UTC9h 25m
2026-07-04 ETH612 - Jul 4, 23:40 UTCJul 5, 00:15 UTC35m
2026-07-04 ETH623 - Jul 4, 01:10 UTCJul 5, 00:15 UTC23h 5m
2026-07-03 ETH622 - Jul 3, 22:55 UTCJul 3, 23:35 UTC40m
2026-07-03 ETH622 - Jul 3, 01:50 UTCJul 3, 23:35 UTC21h 45m
2026-07-02 ETH614 - Jul 2, 23:10 UTCJul 2, 23:35 UTC25m
2026-06-30 ETH615 - Jun 30, 01:09 UTCJun 30, 01:45 UTC36m
2026-06-29 ETH614 - Jun 29, 22:59 UTCJun 29, 23:25 UTC25m
2026-06-29 ETH407 - Jun 29, 00:39 UTCJun 29, 23:25 UTC22h 45m
2026-06-28 ETH406 - Jun 28, 22:20 UTCJun 28, 23:29 UTC1h 10m
2026-06-28 ETH406 - Jun 28, 02:49 UTCJun 28, 23:29 UTC20h 40m
2026-06-27 ETH424 ADD → BAH Jun 27, 22:45 UTCJun 27, 23:19 UTC35m
2026-06-24 ETH682 - Jun 24, 18:20 UTCJun 24, 23:59 UTC5h 40m
2026-06-24 ETH423 - Jun 24, 00:20 UTCJun 24, 00:30 UTC10m
2026-06-20 ETH623 - Jun 20, 00:49 UTCJun 20, 01:09 UTC20m
2026-06-19 ETH622 - Jun 19, 22:55 UTCJun 19, 23:25 UTC30m
2026-06-19 ETH691 - Jun 19, 10:50 UTCJun 19, 10:59 UTC10m
2026-06-19 ETH690 - Jun 19, 02:04 UTCJun 19, 02:29 UTC25m
2026-06-13 ETH612 - Jun 13, 23:25 UTCJun 14, 00:00 UTC35m
2026-06-12 ETH858 JNB → ADD Jun 12, 21:10 UTCJun 12, 21:35 UTC25m
2026-06-12 ETH849 ADD → JNB Jun 12, 14:40 UTCJun 12, 18:40 UTC4h 0m
2026-06-11 ETH693 MAA → ADD Jun 11, 05:00 UTCJun 11, 05:25 UTC25m
2026-06-11 ETH692 ADD → MAA Jun 11, 02:00 UTCJun 11, 02:20 UTC20m

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

Mode-S 040239 frequently asked

What is Mode-S code 040239?
040239 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-BAP.
Where is Mode-S 040239 registered?
Mode-S code 040239 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040239 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 04:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040239, octal 01001071, decimal 262,713.
What flights does 040239 operate?
Mode-S 040239 has broadcast 20 distinct callsigns, including ETH622, ETH623, ETH614, ETH612, ETH406.