Apparatus

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sensors Mode-S transponder

040106

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-ASL · BOEING 777-300ER

Hex
040106
Octal
01000406
Decimal
262,406
Country
ET
Tail
ET-ASL
Type
B77W
No current signal · last broadcast 4h ago
Flights observed
68
Distinct callsigns
12
Country
ET
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 040106.

Country allocation

The ICAO 24-bit address 040106 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 12 distinct

Callsign Airline Flights Last seen
ETH607 Ethiopian Airlines 21 2026-05-25
ETH606 Ethiopian Airlines 15 2026-05-24
ETH637 Ethiopian Airlines 11 2026-05-29
ETH636 Ethiopian Airlines 6 2026-05-26
ETH318 Ethiopian Airlines 3 2026-05-30
ETH847 Ethiopian Airlines 2 2026-05-01
ETH640 Ethiopian Airlines 2 2026-05-23
ETH611 Ethiopian Airlines 2 2026-05-23
ETH610 Ethiopian Airlines 2 2026-05-22
ETH846 Ethiopian Airlines 1 2026-05-02
ETH603 - 1 2026-04-14
ETH602 Ethiopian Airlines 1 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ETH318 ADD → NBO May 30, 09:45 UTCMay 30, 09:55 UTC10m
2026-05-29 ETH637 TFU → ADD May 29, 04:00 UTCMay 29, 23:05 UTC19h 5m
2026-05-29 ETH637 TFU → ADD May 29, 01:45 UTCMay 29, 23:05 UTC21h 21m
2026-05-28 ETH318 ADD → NBO May 28, 09:20 UTCMay 28, 09:30 UTC10m
2026-05-27 ETH637 TFU → ADD May 27, 03:50 UTCMay 27, 23:15 UTC19h 25m
2026-05-27 ETH637 TFU → ADD May 27, 01:39 UTCMay 27, 23:15 UTC21h 35m
2026-05-26 ETH636 ADD → TFU May 26, 14:24 UTCMay 27, 04:24 UTC14h 0m
2026-05-26 ETH636 ADD → TFU May 26, 09:09 UTCMay 27, 04:24 UTC19h 15m
2026-05-25 ETH607 CAN → ADD May 25, 21:35 UTCMay 26, 14:30 UTC16h 55m
2026-05-25 ETH607 CAN → ADD May 25, 18:35 UTCMay 26, 14:30 UTC19h 54m
2026-05-25 ETH607 CAN → ADD May 25, 17:05 UTCMay 26, 14:30 UTC21h 24m
2026-05-24 ETH606 ADD → CAN May 24, 09:35 UTCMay 25, 04:20 UTC18h 45m
2026-05-23 ETH611 BOM → ADD May 23, 22:55 UTCMay 24, 15:40 UTC16h 45m
2026-05-23 ETH640 ADD → BOM May 23, 06:05 UTCMay 23, 20:10 UTC14h 6m
2026-05-22 ETH610 ADD → BOM May 22, 08:45 UTCMay 23, 02:40 UTC17h 54m
2026-05-21 ETH607 CAN → ADD May 21, 19:15 UTCMay 22, 08:50 UTC13h 35m
2026-05-21 ETH607 CAN → ADD May 21, 17:35 UTCMay 21, 17:50 UTC15m
2026-05-21 ETH606 ADD → CAN May 21, 00:45 UTCMay 21, 03:30 UTC2h 45m
2026-05-19 ETH607 CAN → ADD May 19, 18:35 UTCMay 19, 21:45 UTC3h 10m
2026-05-19 ETH607 CAN → ADD May 19, 16:55 UTCMay 19, 17:05 UTC10m
2026-05-19 ETH606 ADD → CAN May 19, 01:05 UTCMay 19, 03:45 UTC2h 40m
2026-05-17 ETH607 CAN → ADD May 17, 18:40 UTCMay 17, 21:55 UTC3h 15m
2026-05-17 ETH606 ADD → CAN May 17, 00:50 UTCMay 17, 03:30 UTC2h 40m
2026-05-15 ETH607 CAN → ADD May 15, 18:25 UTCMay 15, 21:45 UTC3h 20m
2026-05-15 ETH607 CAN → ADD May 15, 16:55 UTCMay 15, 17:10 UTC15m
2026-05-15 ETH606 ADD → CAN May 15, 02:35 UTCMay 15, 03:55 UTC1h 20m
2026-05-13 ETH637 TFU → ADD May 13, 03:50 UTCMay 13, 21:25 UTC17h 35m
2026-05-12 ETH636 ADD → TFU May 12, 08:30 UTCMay 13, 04:45 UTC20h 15m
2026-05-11 ETH637 TFU → ADD May 11, 19:55 UTCMay 12, 08:30 UTC12h 35m
2026-05-11 ETH637 TFU → ADD May 11, 03:30 UTCMay 11, 21:25 UTC17h 56m
2026-05-08 ETH607 CAN → ADD May 8, 18:30 UTCMay 8, 21:55 UTC3h 25m
2026-05-08 ETH607 CAN → ADD May 8, 17:00 UTCMay 8, 17:15 UTC15m
2026-05-08 ETH606 ADD → CAN May 8, 02:49 UTCMay 8, 04:04 UTC1h 15m
2026-05-05 ETH607 CAN → ADD May 5, 16:55 UTCMay 5, 21:55 UTC5h 0m
2026-05-05 ETH606 ADD → CAN May 5, 01:30 UTCMay 5, 04:30 UTC3h 0m
2026-05-04 - - May 4, 09:30 UTCMay 4, 09:45 UTC15m
2026-05-03 ETH637 TFU → ADD May 3, 03:35 UTCMay 3, 23:10 UTC19h 35m
2026-05-03 ETH636 ADD → TFU May 3, 01:50 UTCMay 3, 23:10 UTC21h 19m
2026-05-02 ETH846 CPT → ADD May 2, 13:45 UTCMay 2, 13:55 UTC10m
2026-05-01 ETH847 ADD → CPT May 1, 18:45 UTCMay 2, 12:15 UTC17h 30m
2026-05-01 ETH847 ADD → CPT May 1, 17:10 UTCMay 2, 12:15 UTC19h 6m
2026-05-01 ETH606 ADD → CAN May 1, 01:35 UTCMay 1, 04:40 UTC3h 5m
2026-04-29 ETH607 CAN → ADD Apr 29, 03:34 UTCApr 29, 22:05 UTC18h 31m
2026-04-29 ETH606 ADD → CAN Apr 29, 01:35 UTCApr 29, 22:05 UTC20h 31m
2026-04-29 ETH606 ADD → CAN Apr 29, 01:10 UTCApr 29, 22:05 UTC20h 56m
2026-04-27 ETH607 CAN → ADD Apr 27, 18:55 UTCApr 27, 22:20 UTC3h 25m
2026-04-27 ETH606 ADD → CAN Apr 27, 03:10 UTCApr 27, 04:35 UTC1h 25m
2026-04-25 ETH611 BOM → ADD Apr 25, 23:25 UTCApr 25, 23:55 UTC30m
2026-04-25 ETH640 ADD → BOM Apr 25, 06:10 UTCApr 25, 20:00 UTC13h 50m
2026-04-25 ETH610 ADD → BOM Apr 25, 02:00 UTCApr 25, 02:45 UTC45m

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

Mode-S 040106 frequently asked

What is Mode-S code 040106?
040106 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-ASL.
Where is Mode-S 040106 registered?
Mode-S code 040106 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040106 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040106, octal 01000406, decimal 262,406.
What flights does 040106 operate?
Mode-S 040106 has broadcast 12 distinct callsigns, including ETH607, ETH606, ETH637, ETH636, ETH318.