Apparatus

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sensors Mode-S transponder

040238

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-BAO · BOEING 737 MAX 8

Hex
040238
Octal
01001070
Decimal
262,712
Country
ET
Tail
ET-BAO
Type
B38M
No current signal · last broadcast Jul 26, 14:15 UTC
Flights observed
88
Distinct callsigns
20
Country
ET
Last broadcast
Jul 26, 14:15 UTC

Last known position

Most recent position reported by Mode-S 040238.

Country allocation

The ICAO 24-bit address 040238 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
ETH404 - 6 2026-07-11
ETH765 - 4 2026-07-08
ETH764 - 4 2026-07-08
ETH723 Ethiopian Airlines 4 2026-05-07
ETH722 - 4 2026-07-18
ETH693 - 4 2026-07-07
ETH692 - 4 2026-07-07
ETH688 - 4 2026-07-02
ETH415 - 4 2026-07-11
ETH721 Ethiopian Airlines 3 2026-07-18
ETH720 Ethiopian Airlines 3 2026-05-06
ETH687 Ethiopian Airlines 3 2026-07-02
ETH682 - 3 2026-07-15
ETH308 Ethiopian Airlines 3 2026-05-25
ETH931 Ethiopian Airlines 2 2026-05-20
ETH433 Ethiopian Airlines 2 2026-06-10
ETH432 Ethiopian Airlines 2 2026-06-09
ETH431 Ethiopian Airlines 2 2026-06-16
ETH429 - 2 2026-07-05
ETH428 - 2 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH419 TLV → ADD Jul 26, 13:45 UTCJul 26, 14:15 UTC30m
2026-07-26 ETH623 SHJ → ADD Jul 26, 01:05 UTCJul 26, 11:40 UTC10h 36m
2026-07-25 ETH622 ADD → SHJ Jul 25, 23:00 UTCJul 25, 23:40 UTC40m
2026-07-24 ETH419 TLV → ADD Jul 24, 13:10 UTCJul 24, 13:50 UTC40m
2026-07-24 ETH418 ADD → TLV Jul 24, 11:05 UTCJul 24, 11:35 UTC30m
2026-07-18 ETH721 IST → ADD Jul 18, 21:35 UTCJul 18, 23:20 UTC1h 45m
2026-07-18 ETH722 - Jul 18, 16:50 UTCJul 18, 18:45 UTC1h 55m
2026-07-17 ETH722 - Jul 17, 22:25 UTCJul 18, 18:45 UTC20h 21m
2026-07-17 ETH414 - Jul 17, 20:15 UTCJul 17, 20:50 UTC35m
2026-07-15 ETH682 - Jul 15, 18:25 UTCJul 16, 09:45 UTC15h 20m
2026-07-15 ETH926 - Jul 15, 07:45 UTCJul 15, 22:50 UTC15h 5m
2026-07-11 ETH415 - Jul 11, 05:10 UTCJul 11, 05:35 UTC25m
2026-07-11 ETH404 - Jul 11, 02:10 UTCJul 11, 02:45 UTC35m
2026-07-10 ETH404 TLV → TLV Jul 10, 05:15 UTCJul 11, 02:45 UTC21h 30m
2026-07-10 ETH404 - Jul 10, 02:35 UTCJul 10, 03:05 UTC30m
2026-07-09 ETH404 - Jul 9, 07:45 UTCJul 10, 03:05 UTC19h 20m
2026-07-08 ETH765 - Jul 8, 13:05 UTCJul 9, 07:45 UTC18h 40m
2026-07-08 ETH764 - Jul 8, 10:25 UTCJul 8, 11:15 UTC50m
2026-07-07 ETH693 - Jul 7, 05:05 UTCJul 7, 05:30 UTC25m
2026-07-07 ETH692 - Jul 7, 02:20 UTCJul 7, 02:45 UTC25m
2026-07-06 ETH415 - Jul 6, 05:15 UTCJul 7, 02:45 UTC21h 30m
2026-07-06 ETH404 - Jul 6, 02:40 UTCJul 6, 03:05 UTC25m
2026-07-05 ETH429 - Jul 5, 00:30 UTCJul 5, 00:45 UTC15m
2026-07-04 ETH428 - Jul 4, 22:55 UTCJul 4, 23:15 UTC20m
2026-07-02 ETH687 DEL → ADD Jul 2, 22:15 UTCJul 3, 00:05 UTC1h 50m
2026-07-02 ETH688 - Jul 2, 18:00 UTCJul 2, 20:35 UTC2h 35m
2026-07-01 ETH429 AMM → ADD Jul 1, 00:50 UTCJul 1, 01:10 UTC20m
2026-06-30 ETH428 - Jun 30, 22:50 UTCJun 30, 23:15 UTC25m
2026-06-28 ETH613 - Jun 28, 02:39 UTCJun 28, 03:19 UTC40m
2026-06-28 ETH612 - Jun 28, 00:15 UTCJun 28, 00:55 UTC40m
2026-06-26 ETH415 - Jun 26, 05:19 UTCJun 26, 05:44 UTC25m
2026-06-25 ETH765 ATH → AMM Jun 25, 13:14 UTCJun 26, 03:05 UTC13h 50m
2026-06-25 ETH764 - Jun 25, 09:40 UTCJun 25, 10:55 UTC1h 15m
2026-06-22 ETH415 TLV → AMM Jun 22, 05:54 UTCJun 22, 06:25 UTC30m
2026-06-22 ETH404 ADD → TLV Jun 22, 02:19 UTCJun 22, 02:54 UTC35m
2026-06-17 ETH682 ADD → HYD Jun 17, 18:15 UTCJun 17, 22:40 UTC4h 25m
2026-06-16 ETH431 AMM → ADD Jun 16, 13:19 UTCJun 16, 13:34 UTC15m
2026-06-16 ETH407 BEY → ADD Jun 16, 00:35 UTCJun 16, 10:40 UTC10h 5m
2026-06-15 ETH406 ADD → BEY Jun 15, 22:10 UTCJun 15, 23:15 UTC1h 5m
2026-06-13 ETH962 DLA → ADD Jun 13, 00:45 UTCJun 13, 01:10 UTC25m
2026-06-12 ETH963 ADD → DLA Jun 12, 12:55 UTCJun 12, 23:15 UTC10h 20m
2026-06-11 ETH930 ENU → ADD Jun 11, 14:05 UTCJun 12, 13:00 UTC22h 56m
2026-06-11 ETH431 AMM → ADD Jun 11, 13:45 UTCJun 11, 14:05 UTC20m
2026-06-11 ETH430 ADD → AMM Jun 11, 10:30 UTCJun 11, 10:45 UTC15m
2026-06-10 ETH433 DOH → ADD Jun 10, 00:35 UTCJun 10, 00:55 UTC20m
2026-06-09 ETH432 ADD → DOH Jun 9, 22:10 UTCJun 9, 22:50 UTC40m
2026-06-08 ETH765 ATH → ADD Jun 8, 13:00 UTCJun 8, 14:35 UTC1h 35m
2026-06-08 ETH764 ADD → ATH Jun 8, 09:35 UTCJun 8, 10:50 UTC1h 15m
2026-06-06 ETH687 DEL → ADD Jun 6, 21:25 UTCJun 6, 23:19 UTC1h 55m
2026-06-06 ETH688 ADD → DEL Jun 6, 18:39 UTCJun 6, 19:30 UTC50m

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

Mode-S 040238 frequently asked

What is Mode-S code 040238?
040238 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-BAO.
Where is Mode-S 040238 registered?
Mode-S code 040238 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040238 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040238, octal 01001070, decimal 262,712.
What flights does 040238 operate?
Mode-S 040238 has broadcast 20 distinct callsigns, including ETH404, ETH765, ETH764, ETH723, ETH722.