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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
Broadcasting now · callsign ETH606 · 37,000 ft
Flights observed
139
Distinct callsigns
14
Country
ET
Last broadcast
Jul 26, 21:10 UTC

Current position

040106 is currently broadcasting. Map zoomed to live position.

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 14 distinct

Callsign Airline Flights Last seen
ETH607 Ethiopian Airlines 40 2026-07-24
ETH606 Ethiopian Airlines 31 2026-07-24
ETH637 Ethiopian Airlines 19 2026-07-20
ETH636 Ethiopian Airlines 13 2026-07-26
ETH318 - 9 2026-07-23
ETH640 - 5 2026-07-02
ETH611 - 5 2026-07-02
ETH610 - 5 2026-07-01
ETH601 - 3 2026-07-11
ETH600 - 3 2026-07-10
ETH847 Ethiopian Airlines 2 2026-05-01
ETH846 Ethiopian Airlines 1 2026-05-02
ETH603 - 1 2026-04-14
ETH602 Ethiopian Airlines 1 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETH636 ADD → TFU Jul 26, 02:00 UTCJul 26, 21:10 UTC19h 11m
2026-07-24 ETH607 CAN → ADD Jul 24, 18:45 UTCJul 24, 22:20 UTC3h 35m
2026-07-24 ETH607 CAN → ADD Jul 24, 17:05 UTCJul 24, 17:15 UTC10m
2026-07-24 ETH606 ADD → CAN Jul 24, 01:40 UTCJul 24, 05:15 UTC3h 35m
2026-07-23 ETH318 - Jul 23, 09:25 UTCJul 23, 09:40 UTC15m
2026-07-22 ETH607 - Jul 22, 18:25 UTCJul 22, 21:25 UTC3h 0m
2026-07-22 ETH606 ADD → CAN Jul 22, 01:10 UTCJul 22, 04:45 UTC3h 35m
2026-07-20 ETH637 TFU → ADD Jul 20, 04:00 UTCJul 20, 23:00 UTC19h 0m
2026-07-20 ETH636 ADD → TFU Jul 20, 02:10 UTCJul 20, 23:00 UTC20h 50m
2026-07-19 ETH636 ADD → TFU Jul 19, 10:55 UTCJul 20, 05:45 UTC18h 50m
2026-07-18 ETH607 - Jul 18, 18:45 UTCJul 19, 10:55 UTC16h 10m
2026-07-18 ETH607 - Jul 18, 17:05 UTCJul 18, 17:15 UTC10m
2026-07-17 ETH606 - Jul 17, 15:20 UTCJul 18, 05:50 UTC14h 31m
2026-07-16 ETH607 - Jul 16, 18:19 UTCJul 17, 13:15 UTC18h 55m
2026-07-15 ETH606 - Jul 15, 14:10 UTCJul 16, 04:55 UTC14h 45m
2026-07-14 ETH607 - Jul 14, 18:20 UTCJul 15, 11:50 UTC17h 29m
2026-07-14 ETH607 - Jul 14, 16:40 UTCJul 14, 16:55 UTC15m
2026-07-14 ETH606 - Jul 14, 00:55 UTCJul 14, 04:35 UTC3h 40m
2026-07-12 ETH607 - Jul 12, 18:35 UTCJul 12, 22:10 UTC3h 35m
2026-07-12 ETH606 - Jul 12, 01:10 UTCJul 12, 05:01 UTC3h 50m
2026-07-11 ETH601 - Jul 11, 01:30 UTCJul 11, 02:00 UTC30m
2026-07-10 ETH600 - Jul 10, 23:00 UTCJul 10, 23:30 UTC30m
2026-07-10 ETH601 - Jul 10, 00:50 UTCJul 10, 01:10 UTC20m
2026-07-09 ETH600 - Jul 9, 22:25 UTCJul 9, 22:50 UTC25m
2026-07-09 ETH318 - Jul 9, 09:35 UTCJul 9, 09:50 UTC15m
2026-07-08 ETH607 - Jul 8, 18:35 UTCJul 8, 22:05 UTC3h 30m
2026-07-08 ETH606 - Jul 8, 00:55 UTCJul 8, 04:35 UTC3h 40m
2026-07-06 ETH607 CAN → ADD Jul 6, 18:25 UTCJul 6, 21:35 UTC3h 10m
2026-07-06 ETH606 - Jul 6, 01:15 UTCJul 6, 04:30 UTC3h 15m
2026-07-04 ETH607 CAN → ADD Jul 4, 17:40 UTCJul 4, 22:40 UTC5h 0m
2026-07-04 ETH606 - Jul 4, 00:55 UTCJul 4, 04:30 UTC3h 35m
2026-07-02 ETH611 - Jul 2, 22:50 UTCJul 2, 23:20 UTC30m
2026-07-02 ETH640 - Jul 2, 06:15 UTCJul 2, 20:35 UTC14h 20m
2026-07-01 ETH610 - Jul 1, 14:25 UTCJul 2, 03:00 UTC12h 35m
2026-06-30 ETH611 - Jun 30, 23:05 UTCJul 1, 11:35 UTC12h 30m
2026-06-30 ETH640 - Jun 30, 06:00 UTCJun 30, 20:40 UTC14h 40m
2026-06-30 ETH610 - Jun 30, 01:55 UTCJun 30, 02:50 UTC55m
2026-06-29 ETH318 - Jun 29, 09:34 UTCJun 29, 09:44 UTC10m
2026-06-28 ETH607 CAN → ADD Jun 28, 18:44 UTCJun 28, 22:24 UTC3h 40m
2026-06-28 ETH606 - Jun 28, 00:59 UTCJun 28, 03:59 UTC3h 0m
2026-06-27 ETH318 - Jun 27, 09:24 UTCJun 27, 09:34 UTC10m
2026-06-26 ETH607 CAN → ADD Jun 26, 17:40 UTCJun 26, 22:55 UTC5h 15m
2026-06-26 ETH606 - Jun 26, 00:59 UTCJun 26, 04:04 UTC3h 5m
2026-06-24 ETH607 CAN → ADD Jun 24, 03:35 UTCJun 24, 21:34 UTC18h 0m
2026-06-24 ETH606 - Jun 24, 01:34 UTCJun 24, 21:34 UTC20h 0m
2026-06-24 ETH606 - Jun 24, 00:59 UTCJun 24, 21:34 UTC20h 35m
2026-06-23 ETH601 - Jun 23, 01:04 UTCJun 23, 01:25 UTC20m
2026-06-22 ETH600 - Jun 22, 22:24 UTCJun 22, 22:59 UTC35m
2026-06-21 ETH637 - Jun 21, 22:24 UTCJun 21, 23:00 UTC35m
2026-06-21 ETH636 - Jun 21, 01:55 UTCJun 21, 21:19 UTC19h 25m

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?
Yes. Mode-S 040106 is currently airborne.
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 14 distinct callsigns, including ETH607, ETH606, ETH637, ETH636, ETH318.