sensors Mode-S transponder

040127

ICAO 24-bit transponder address · allocated to Ethiopia

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

Hex
040127
Octal
01000447
Decimal
262,439
Country
ET
Tail
ET-ATK
Type
B788
No current signal · last broadcast 3h ago
Flights observed
77
Distinct callsigns
20
Country
ET
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 040127.

Country allocation

The ICAO 24-bit address 040127 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ETH738 ADD → GVA May 30, 01:40 UTCMay 30, 04:30 UTC2h 50m
2026-05-27 ETH729 MAN → BRU May 27, 20:30 UTCMay 27, 22:55 UTC2h 25m
2026-05-27 ETH729 MAN → BRU May 27, 17:55 UTCMay 27, 19:20 UTC1h 25m
2026-05-27 ETH728 GVA → MAN May 27, 05:45 UTCMay 27, 07:20 UTC1h 36m
2026-05-27 ETH728 GVA → MAN May 27, 01:44 UTCMay 27, 04:19 UTC2h 35m
2026-05-26 ETH517 LFW → ADD May 26, 02:10 UTCMay 27, 01:44 UTC23h 35m
2026-05-25 ETH516 LFW → IAD May 25, 16:45 UTCMay 25, 23:45 UTC7h 0m
2026-05-24 ETH737 MXP → ADD May 24, 23:00 UTCMay 25, 17:15 UTC18h 15m
2026-05-24 ETH737 MXP → ADD May 24, 19:05 UTCMay 24, 19:35 UTC30m
2026-05-24 ETH736 MXP → ZRH May 24, 05:35 UTCMay 24, 06:15 UTC40m
2026-05-24 ETH736 MXP → ZRH May 24, 01:10 UTCMay 24, 04:15 UTC3h 5m
2026-05-22 ETH858 JNB → ADD May 22, 21:10 UTCMay 23, 00:40 UTC3h 30m
2026-05-22 ETH689 DEL → ADD May 22, 04:35 UTCMay 22, 18:10 UTC13h 35m
2026-05-21 ETH686 ADD → DEL May 21, 13:35 UTCMay 22, 02:15 UTC12h 40m
2026-05-21 ETH913 ADD → ADD May 21, 09:55 UTCMay 21, 10:05 UTC10m
2026-05-19 ETH737 MXP → ADD May 19, 22:00 UTCMay 20, 00:05 UTC2h 5m
2026-05-19 ETH737 MXP → ADD May 19, 19:05 UTCMay 19, 19:40 UTC35m
2026-05-19 ETH736 MXP → ZRH May 19, 05:45 UTCMay 19, 06:25 UTC40m
2026-05-19 ETH736 MXP → ZRH May 19, 00:55 UTCMay 19, 04:30 UTC3h 35m
2026-05-17 ETH681 - May 17, 08:30 UTCMay 17, 11:15 UTC2h 45m
2026-05-17 ETH680 - May 17, 00:40 UTCMay 17, 03:25 UTC2h 45m
2026-05-15 ETH601 DXB → ADD May 15, 00:50 UTCMay 15, 01:10 UTC20m
2026-05-14 ETH719 LGW → ADD May 14, 09:35 UTCMay 14, 12:35 UTC3h 0m
2026-05-14 ETH718 ADD → LGW May 14, 02:05 UTCMay 14, 05:45 UTC3h 40m
2026-05-12 ETH909 ADD → BKO May 12, 21:01 UTCMay 12, 21:35 UTC35m
2026-05-12 ETH909 ADD → BKO May 12, 18:05 UTCMay 12, 18:45 UTC40m
2026-05-11 ETH715 ARN → ADD May 11, 21:50 UTCMay 12, 18:45 UTC20h 55m
2026-05-11 ETH715 ARN → ADD May 11, 20:00 UTCMay 12, 18:45 UTC22h 45m
2026-05-11 ETH715 ARN → ADD May 11, 17:55 UTCMay 11, 18:40 UTC45m
2026-05-11 ETH714 ADD → ARN May 11, 05:45 UTCMay 11, 06:30 UTC45m
2026-05-10 ETH714 ADD → ARN May 10, 09:50 UTCMay 11, 04:10 UTC18h 20m
2026-05-10 ETH714 ADD → ARN May 10, 09:24 UTCMay 11, 04:10 UTC18h 45m
2026-05-09 ETH718 ADD → LGW May 9, 14:00 UTCMay 10, 05:14 UTC15h 15m
2026-05-08 ETH715 ARN → ADD May 8, 20:20 UTCMay 9, 10:45 UTC14h 25m
2026-05-08 ETH715 ARN → ADD May 8, 18:05 UTCMay 8, 18:50 UTC45m
2026-05-08 ETH714 ADD → ARN May 8, 06:20 UTCMay 8, 07:04 UTC45m
2026-05-08 ETH714 ADD → ARN May 8, 00:54 UTCMay 8, 04:44 UTC3h 50m
2026-05-07 ETH714 ADD → ARN May 7, 07:10 UTCMay 8, 04:44 UTC21h 35m
2026-05-06 ETH725 VIE → ADD May 6, 20:15 UTCMay 7, 07:15 UTC11h 0m
2026-05-06 ETH725 VIE → ADD May 6, 17:40 UTCMay 6, 18:55 UTC1h 15m
2026-05-06 ETH724 VIE → BRU May 6, 05:30 UTCMay 6, 06:45 UTC1h 15m
2026-05-06 ETH724 VIE → BRU May 6, 01:35 UTCMay 6, 04:10 UTC2h 35m
2026-05-04 ETH715 ARN → ADD May 4, 20:15 UTCMay 5, 10:30 UTC14h 15m
2026-05-04 ETH715 ARN → ADD May 4, 17:50 UTCMay 4, 18:30 UTC40m
2026-05-04 ETH714 ADD → ARN May 4, 06:55 UTCMay 4, 07:40 UTC45m
2026-05-04 ETH714 ADD → ARN May 4, 01:05 UTCMay 4, 05:25 UTC4h 20m
2026-05-02 ETH739 GVA → ADD May 2, 20:15 UTCMay 2, 22:35 UTC2h 20m
2026-05-02 ETH738 ADD → GVA May 2, 01:25 UTCMay 2, 04:10 UTC2h 45m
2026-04-30 ETH858 JNB → ADD Apr 30, 21:00 UTCApr 30, 21:20 UTC20m
2026-04-30 ETH849 ADD → JNB Apr 30, 06:40 UTCApr 30, 18:15 UTC11h 35m

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

Mode-S 040127 frequently asked

What is Mode-S code 040127?
040127 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ATK.
Where is Mode-S 040127 registered?
Mode-S code 040127 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040127 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040127, octal 01000447, decimal 262,439.
What flights does 040127 operate?
Mode-S 040127 has broadcast 20 distinct callsigns, including ETH714, ETH715, ETH858, ETH737, ETH736.