Apparatus

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sensors Mode-S transponder

040128

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
040128
Octal
01000450
Decimal
262,440
Country
ET
Tail
ET-ATL
Type
B788
No current signal · last broadcast 10d ago
Flights observed
147
Distinct callsigns
20
Country
ET
Last broadcast
10d ago

Last known position

Most recent position reported by Mode-S 040128.

Country allocation

The ICAO 24-bit address 040128 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
ETH715 Ethiopian Airlines 16 2026-07-21
ETH714 Ethiopian Airlines 14 2026-07-21
ETH737 Ethiopian Airlines 8 2026-07-23
ETH736 Ethiopian Airlines 8 2026-07-23
ETH730 - 7 2026-07-12
ETH719 - 7 2026-07-20
ETH731 - 6 2026-07-12
ETH718 Ethiopian Airlines 6 2026-07-19
ETH859 Ethiopian Airlines 5 2026-07-17
ETH729 Ethiopian Airlines 4 2026-06-07
ETH728 Ethiopian Airlines 4 2026-06-07
ETH727 Ethiopian Airlines 4 2026-06-13
ETH726 - 4 2026-06-13
ETH725 Ethiopian Airlines 4 2026-07-25
ETH724 Ethiopian Airlines 4 2026-07-25
ETH687 - 4 2026-07-18
ETH609 - 4 2026-06-19
ETH517 - 4 2026-07-05
ETH681 - 3 2026-05-27
ETH942 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ETH725 VIE → ADD Jul 25, 20:25 UTCJul 25, 23:10 UTC2h 45m
2026-07-25 ETH725 VIE → ADD Jul 25, 17:55 UTCJul 25, 19:05 UTC1h 10m
2026-07-25 ETH724 VIE → BRU Jul 25, 06:15 UTCJul 25, 07:35 UTC1h 20m
2026-07-25 ETH724 VIE → BRU Jul 25, 02:15 UTCJul 25, 04:35 UTC2h 20m
2026-07-23 ETH737 MXP → ADD Jul 23, 21:55 UTCJul 24, 00:05 UTC2h 10m
2026-07-23 ETH737 MXP → ADD Jul 23, 19:20 UTCJul 23, 20:00 UTC40m
2026-07-23 ETH736 MXP → ZRH Jul 23, 05:20 UTCJul 23, 05:55 UTC35m
2026-07-23 ETH736 MXP → ZRH Jul 23, 00:55 UTCJul 23, 04:15 UTC3h 20m
2026-07-21 ETH715 ARN → ADD Jul 21, 20:00 UTCJul 22, 00:05 UTC4h 5m
2026-07-21 ETH715 ARN → ADD Jul 21, 17:55 UTCJul 21, 18:35 UTC40m
2026-07-21 ETH714 ADD → ARN Jul 21, 05:45 UTCJul 21, 06:30 UTC45m
2026-07-20 ETH714 ADD → ARN Jul 20, 10:05 UTCJul 21, 04:05 UTC18h 0m
2026-07-20 ETH719 LGW → ARN Jul 20, 09:45 UTCJul 21, 04:05 UTC18h 19m
2026-07-19 ETH718 ADD → LGW Jul 19, 13:50 UTCJul 20, 05:10 UTC15h 20m
2026-07-18 ETH687 - Jul 18, 21:30 UTCJul 19, 13:50 UTC16h 20m
2026-07-18 ETH717 FCO → ADD Jul 18, 05:50 UTCJul 18, 20:00 UTC14h 10m
2026-07-17 ETH712 ADD → FCO Jul 17, 14:30 UTCJul 18, 03:55 UTC13h 26m
2026-07-17 ETH712 ADD → FCO Jul 17, 06:40 UTCJul 18, 03:55 UTC21h 16m
2026-07-17 ETH859 ADD → JNB Jul 17, 01:39 UTCJul 17, 02:10 UTC30m
2026-07-15 ETH715 - Jul 15, 20:05 UTCJul 15, 23:50 UTC3h 45m
2026-07-15 ETH715 OSL → ARN Jul 15, 17:55 UTCJul 15, 18:40 UTC45m
2026-07-15 ETH714 ARN → OSL Jul 15, 06:00 UTCJul 15, 06:45 UTC45m
2026-07-15 ETH714 - Jul 15, 00:50 UTCJul 15, 04:20 UTC3h 30m
2026-07-14 ETH942 - Jul 14, 14:25 UTCJul 15, 00:45 UTC10h 19m
2026-07-12 ETH731 - Jul 12, 20:30 UTCJul 12, 22:50 UTC2h 20m
2026-07-12 ETH731 - Jul 12, 17:50 UTCJul 12, 18:45 UTC55m
2026-07-12 ETH730 VIE → WAW Jul 12, 05:15 UTCJul 12, 06:15 UTC1h 0m
2026-07-11 ETH730 - Jul 11, 08:15 UTCJul 12, 03:55 UTC19h 40m
2026-07-10 ETH715 - Jul 10, 20:15 UTCJul 11, 08:15 UTC12h 0m
2026-07-10 ETH715 OSL → ARN Jul 10, 18:05 UTCJul 10, 18:50 UTC45m
2026-07-10 ETH714 ARN → OSL Jul 10, 05:45 UTCJul 10, 06:25 UTC40m
2026-07-09 ETH714 - Jul 9, 13:45 UTCJul 10, 04:10 UTC14h 25m
2026-07-07 ETH713 FCO → ADD Jul 7, 21:35 UTCJul 7, 23:05 UTC1h 30m
2026-07-07 ETH716 - Jul 7, 06:25 UTCJul 7, 19:45 UTC13h 20m
2026-07-07 ETH859 ADD → JNB Jul 7, 01:00 UTCJul 7, 01:35 UTC35m
2026-07-06 ETH844 - Jul 6, 12:10 UTCJul 6, 12:20 UTC10m
2026-07-05 ETH845 - Jul 5, 19:35 UTCJul 6, 10:55 UTC15h 20m
2026-07-05 ETH517 - Jul 5, 14:05 UTCJul 6, 10:55 UTC20h 50m
2026-07-05 ETH517 - Jul 5, 13:55 UTCJul 6, 10:55 UTC21h 0m
2026-07-05 ETH517 - Jul 5, 08:05 UTCJul 5, 20:05 UTC12h 0m
2026-07-05 ETH517 - Jul 5, 07:20 UTCJul 5, 08:00 UTC40m
2026-07-05 ETH516 JFK → IAD Jul 5, 04:45 UTCJul 5, 05:30 UTC45m
2026-07-04 ETH516 - Jul 4, 16:40 UTCJul 5, 00:35 UTC7h 55m
2026-07-03 ETH725 - Jul 3, 20:30 UTCJul 4, 16:55 UTC20h 25m
2026-07-03 ETH725 - Jul 3, 17:40 UTCJul 3, 18:55 UTC1h 15m
2026-07-03 ETH724 VIE → CPH Jul 3, 05:15 UTCJul 3, 06:35 UTC1h 20m
2026-07-02 ETH724 - Jul 2, 14:55 UTCJul 3, 03:50 UTC12h 55m
2026-07-02 ETH846 - Jul 2, 13:40 UTCJul 2, 13:55 UTC15m
2026-07-01 ETH737 MXP → ADD Jul 1, 22:10 UTCJul 2, 12:20 UTC14h 10m
2026-07-01 ETH737 MXP → ADD Jul 1, 19:10 UTCJul 1, 19:45 UTC35m

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

Mode-S 040128 frequently asked

What is Mode-S code 040128?
040128 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ATL.
Where is Mode-S 040128 registered?
Mode-S code 040128 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040128 broadcasting right now?
No active broadcast right now. Last signal was 10d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040128, octal 01000450, decimal 262,440.
What flights does 040128 operate?
Mode-S 040128 has broadcast 20 distinct callsigns, including ETH715, ETH714, ETH737, ETH736, ETH730.