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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 Jul 26, 13:50 UTC
Flights observed
166
Distinct callsigns
20
Country
ET
Last broadcast
Jul 26, 13:50 UTC

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

Callsign Airline Flights Last seen
ETH715 Ethiopian Airlines 22 2026-07-22
ETH714 Ethiopian Airlines 20 2026-07-21
ETH736 Ethiopian Airlines 13 2026-07-20
ETH737 - 11 2026-07-20
ETH718 Ethiopian Airlines 10 2026-07-26
ETH516 - 6 2026-07-06
ETH712 - 5 2026-07-09
ETH514 Ethiopian Airlines 5 2026-07-23
ETH858 Ethiopian Airlines 4 2026-05-22
ETH739 - 4 2026-06-20
ETH719 Ethiopian Airlines 4 2026-07-26
ETH713 - 4 2026-07-10
ETH680 - 4 2026-06-09
ETH517 - 4 2026-07-07
ETH515 Ethiopian Airlines 4 2026-07-24
ETH849 Ethiopian Airlines 3 2026-04-30
ETH741 Ethiopian Airlines 3 2026-07-04
ETH738 - 3 2026-06-20
ETH681 - 3 2026-06-10
ETH609 Ethiopian Airlines 3 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH719 LGW → ADD Jul 26, 09:55 UTCJul 26, 13:50 UTC3h 55m
2026-07-26 ETH718 ADD → LGW Jul 26, 02:00 UTCJul 26, 05:45 UTC3h 45m
2026-07-25 ETH718 ADD → LGW Jul 25, 08:45 UTCJul 26, 05:45 UTC21h 0m
2026-07-25 ETH907 BKO → DSS Jul 25, 05:25 UTCJul 25, 06:05 UTC40m
2026-07-24 ETH907 BKO → DSS Jul 24, 09:50 UTCJul 25, 06:05 UTC20h 15m
2026-07-24 ETH515 LFW → ADD Jul 24, 08:50 UTCJul 25, 06:05 UTC21h 15m
2026-07-24 ETH515 LFW → ADD Jul 24, 02:20 UTCJul 24, 09:50 UTC7h 30m
2026-07-23 ETH514 LFW → JFK Jul 23, 15:00 UTCJul 23, 23:10 UTC8h 10m
2026-07-22 ETH514 LFW → JFK Jul 22, 23:50 UTCJul 23, 23:10 UTC23h 20m
2026-07-22 ETH715 ARN → ADD Jul 22, 21:50 UTCJul 23, 15:50 UTC18h 0m
2026-07-22 ETH715 ARN → ADD Jul 22, 20:00 UTCJul 23, 15:50 UTC19h 50m
2026-07-22 ETH715 ARN → ADD Jul 22, 18:00 UTCJul 22, 18:40 UTC40m
2026-07-21 ETH714 ADD → ARN Jul 21, 13:25 UTCJul 22, 04:15 UTC14h 50m
2026-07-20 ETH737 - Jul 20, 21:40 UTCJul 21, 13:30 UTC15h 49m
2026-07-20 ETH737 ZRH → MXP Jul 20, 19:15 UTCJul 20, 19:55 UTC40m
2026-07-20 ETH736 MXP → ZRH Jul 20, 05:45 UTCJul 20, 06:20 UTC35m
2026-07-19 ETH736 MXP → ZRH Jul 19, 14:40 UTCJul 20, 04:25 UTC13h 45m
2026-07-17 ETH715 - Jul 17, 20:10 UTCJul 18, 00:15 UTC4h 5m
2026-07-17 ETH715 OSL → ARN Jul 17, 18:05 UTCJul 17, 18:44 UTC40m
2026-07-17 ETH714 ADD → ARN Jul 17, 06:00 UTCJul 17, 06:40 UTC40m
2026-07-16 ETH714 ADD → ARN Jul 16, 09:50 UTCJul 17, 04:25 UTC18h 35m
2026-07-15 ETH718 - Jul 15, 11:50 UTCJul 16, 05:50 UTC18h 0m
2026-07-15 ETH718 - Jul 15, 11:15 UTCJul 16, 05:50 UTC18h 35m
2026-07-15 ETH515 - Jul 15, 04:50 UTCJul 16, 03:45 UTC22h 55m
2026-07-14 ETH514 - Jul 14, 15:05 UTCJul 14, 23:25 UTC8h 19m
2026-07-13 ETH514 - Jul 13, 23:50 UTCJul 14, 23:25 UTC23h 34m
2026-07-13 ETH737 - Jul 13, 21:55 UTCJul 14, 16:00 UTC18h 5m
2026-07-13 ETH737 ZRH → MXP Jul 13, 19:20 UTCJul 13, 20:00 UTC40m
2026-07-13 ETH736 MXP → ZRH Jul 13, 05:15 UTCJul 13, 05:50 UTC35m
2026-07-13 ETH736 - Jul 13, 01:15 UTCJul 13, 03:40 UTC2h 25m
2026-07-13 ETH736 - Jul 13, 00:40 UTCJul 13, 01:10 UTC30m
2026-07-10 ETH713 - Jul 10, 22:30 UTCJul 11, 00:10 UTC1h 40m
2026-07-10 ETH716 - Jul 10, 05:20 UTCJul 10, 20:40 UTC15h 20m
2026-07-09 ETH712 - Jul 9, 09:00 UTCJul 10, 03:15 UTC18h 15m
2026-07-08 ETH737 - Jul 8, 21:45 UTCJul 9, 09:00 UTC11h 15m
2026-07-08 ETH737 ZRH → MXP Jul 8, 19:15 UTCJul 8, 19:50 UTC35m
2026-07-08 ETH736 MXP → ZRH Jul 8, 05:15 UTCJul 8, 05:50 UTC35m
2026-07-07 ETH736 - Jul 7, 10:20 UTCJul 8, 03:50 UTC17h 30m
2026-07-07 ETH736 - Jul 7, 03:50 UTCJul 8, 03:45 UTC23h 55m
2026-07-07 ETH517 - Jul 7, 03:40 UTCJul 8, 01:45 UTC22h 5m
2026-07-06 ETH516 - Jul 6, 14:55 UTCJul 6, 23:45 UTC8h 50m
2026-07-05 ETH516 - Jul 5, 21:10 UTCJul 6, 15:50 UTC18h 40m
2026-07-04 ETH741 MAD → ADD Jul 4, 23:50 UTCJul 5, 18:55 UTC19h 5m
2026-07-04 ETH741 MAD → ADD Jul 4, 21:55 UTCJul 5, 18:55 UTC21h 0m
2026-07-04 ETH741 MAD → ADD Jul 4, 19:10 UTCJul 4, 20:05 UTC55m
2026-07-04 ETH740 - Jul 4, 05:15 UTCJul 4, 06:00 UTC45m
2026-07-04 ETH740 - Jul 4, 00:15 UTCJul 4, 03:30 UTC3h 15m
2026-06-25 ETH848 - Jun 25, 06:40 UTCJun 25, 17:25 UTC10h 45m
2026-06-25 ETH859 ADD → JNB Jun 25, 01:30 UTCJun 25, 01:59 UTC30m
2026-06-23 ETH719 - Jun 23, 10:49 UTCJun 23, 14:49 UTC4h 0m

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 Jul 26, 13:50 UTC.
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 ETH715, ETH714, ETH736, ETH737, ETH718.