Apparatus

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sensors Mode-S transponder

040229

ICAO 24-bit transponder address · allocated to Ethiopia

Currently assigned to ET-AZZ · BOEING 737-800

Hex
040229
Octal
01001051
Decimal
262,697
Country
ET
Tail
ET-AZZ
Type
B738
No current signal · last broadcast 1d ago
Flights observed
46
Distinct callsigns
20
Country
ET
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 040229.

Country allocation

The ICAO 24-bit address 040229 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
SKK034 - 6 2026-05-20
SKK070 Skylink Aviation 4 2026-05-28
SKK051 Skylink Aviation 4 2026-05-26
SKK074 Skylink Aviation 3 2026-05-27
SKK071 Skylink Aviation 3 2026-05-29
SKK069 Skylink Aviation 3 2026-05-27
SKK050 Skylink Aviation 3 2026-05-25
SKK077 - 2 2026-05-09
SKK064 - 2 2026-05-11
SKK055 Skylink Aviation 2 2026-05-11
SKK054 - 2 2026-05-10
SKK015 Skylink Aviation 2 2026-04-24
SKK014 Skylink Aviation 2 2026-04-30
SKK35 Skylink Aviation 1 2026-04-18
SKK076 - 1 2026-05-08
SKK075 Skylink Aviation 1 2026-05-28
SKK068 - 1 2026-04-14
SKK065 - 1 2026-04-25
SKK035 - 1 2026-04-14
SKK023 Skylink Aviation 1 2026-04-23

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-05-29 SKK071 FIH → LFW May 29, 03:40 UTCMay 29, 04:10 UTC30m
2026-05-28 SKK070 FIH → JNB May 28, 23:05 UTCMay 28, 23:35 UTC30m
2026-05-28 SKK075 LBV → LFW May 28, 03:30 UTCMay 28, 23:35 UTC20h 5m
2026-05-27 SKK074 LBV → JNB May 27, 20:30 UTCMay 27, 21:05 UTC35m
2026-05-27 SKK069 SSG → LFW May 27, 07:40 UTCMay 27, 08:00 UTC20m
2026-05-26 SKK051 DSS → COO May 26, 06:54 UTCMay 26, 07:29 UTC35m
2026-05-25 SKK050 LFW → DSS May 25, 03:40 UTCMay 25, 18:55 UTC15h 15m
2026-05-24 SKK074 LBV → JNB May 24, 21:05 UTCMay 24, 21:40 UTC35m
2026-05-24 SKK069 SSG → LFW May 24, 07:40 UTCMay 24, 08:05 UTC25m
2026-05-20 SKK034 - May 20, 16:00 UTCMay 20, 16:30 UTC30m
2026-05-20 SKK071 FIH → LFW May 20, 03:55 UTCMay 20, 04:30 UTC35m
2026-05-19 SKK070 FIH → JNB May 19, 10:30 UTCMay 19, 22:05 UTC11h 35m
2026-05-16 SKK051 DSS → COO May 16, 09:25 UTCMay 16, 10:01 UTC35m
2026-05-15 SKK050 LFW → DSS May 15, 16:30 UTCMay 15, 17:10 UTC40m
2026-05-13 SKK034 - May 13, 16:35 UTCMay 14, 08:25 UTC15h 50m
2026-05-11 SKK064 - May 11, 16:30 UTCMay 11, 16:45 UTC15m
2026-05-11 SKK055 RAI → DSS May 11, 08:25 UTCMay 11, 15:25 UTC7h 0m
2026-05-11 SKK055 RAI → DSS May 11, 06:20 UTCMay 11, 07:20 UTC1h 0m
2026-05-10 SKK054 - May 10, 17:55 UTCMay 10, 19:00 UTC1h 5m
2026-05-10 SKK054 - May 10, 16:10 UTCMay 10, 16:44 UTC35m
2026-05-09 SKK077 - May 9, 08:15 UTCMay 9, 08:40 UTC25m
2026-05-09 SKK077 - May 9, 06:25 UTCMay 9, 06:50 UTC25m
2026-05-08 SKK076 - May 8, 17:35 UTCMay 8, 18:10 UTC35m
2026-05-08 SKK071 FIH → LFW May 8, 03:35 UTCMay 8, 16:20 UTC12h 45m
2026-05-07 SKK070 FIH → JNB May 7, 03:45 UTCMay 7, 21:25 UTC17h 40m
2026-05-06 SKK074 LBV → JNB May 6, 05:40 UTCMay 6, 23:35 UTC17h 54m
2026-05-05 SKK070 FIH → JNB May 5, 09:50 UTCMay 6, 02:05 UTC16h 15m
2026-05-03 SKK051 DSS → COO May 3, 06:40 UTCMay 3, 07:15 UTC35m
2026-05-02 SKK050 LFW → DSS May 2, 17:35 UTCMay 2, 18:15 UTC40m
2026-04-30 SKK014 CKY → NKC Apr 30, 17:00 UTCMay 1, 08:15 UTC15h 15m
2026-04-29 SKK034 - Apr 29, 16:50 UTCApr 30, 08:45 UTC15h 54m
2026-04-26 SKK034 - Apr 26, 17:00 UTCApr 27, 08:30 UTC15h 30m
2026-04-25 SKK065 - Apr 25, 09:45 UTCApr 25, 10:10 UTC25m
2026-04-24 SKK064 NSI → NSI Apr 24, 16:25 UTCApr 25, 08:55 UTC16h 30m
2026-04-24 SKK015 NKC → CKY Apr 24, 07:15 UTCApr 24, 15:40 UTC8h 25m
2026-04-23 SKK015 NKC → CKY Apr 23, 18:20 UTCApr 24, 15:40 UTC21h 20m
2026-04-23 SKK014 CKY → NKC Apr 23, 18:05 UTCApr 24, 15:40 UTC21h 35m
2026-04-23 SKK023 BJL → FNA Apr 23, 06:30 UTCApr 23, 06:40 UTC10m
2026-04-22 SKK022 FNA → BJL Apr 22, 17:55 UTCApr 22, 18:20 UTC25m
2026-04-18 SKK35 DLA → LFW Apr 18, 08:30 UTCApr 18, 08:40 UTC10m
2026-04-17 SKK034 - Apr 17, 16:35 UTCApr 17, 17:00 UTC25m
2026-04-15 SKK069 SSG → LFW Apr 15, 07:35 UTCApr 15, 07:55 UTC20m
2026-04-14 SKK068 - Apr 14, 16:50 UTCApr 14, 17:20 UTC30m
2026-04-14 SKK035 - Apr 14, 08:15 UTCApr 14, 08:40 UTC25m
2026-04-13 SKK034 - Apr 13, 16:50 UTCApr 13, 17:10 UTC20m
2026-04-13 SKK051 DSS → COO Apr 13, 09:30 UTCApr 13, 10:05 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-AZZ page for operator, model, and routing details .

Mode-S 040229 frequently asked

What is Mode-S code 040229?
040229 is an ICAO 24-bit transponder address. Allocated to Ethiopia. Assigned to ET-AZZ.
Where is Mode-S 040229 registered?
Mode-S code 040229 is allocated to Ethiopia (ET). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 040229 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 040229, octal 01001051, decimal 262,697.
What flights does 040229 operate?
Mode-S 040229 has broadcast 20 distinct callsigns, including SKK034, SKK070, SKK051, SKK074, SKK071.