Apparatus

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sensors Mode-S transponder

0A0039

ICAO 24-bit transponder address · allocated to Algeria

Currently assigned to 7T-VUI · ATR-72-500

Hex
0A0039
Octal
02400071
Decimal
655,417
Country
DZ
Tail
7T-VUI
Type
AT75
No current signal · last broadcast 4h ago
Flights observed
161
Distinct callsigns
20
Country
DZ
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 0A0039.

Country allocation

The ICAO 24-bit address 0A0039 falls within the block assigned to Algeria (DZ) by ICAO Annex 10, Volume III. Every aircraft registered in Algeria 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
DAH6183 - 9 2026-07-09
DAH6388 - 7 2026-07-12
DAH6254 - 7 2026-07-10
DAH6184 - 7 2026-07-09
DAH6168 - 7 2026-07-14
DAH6182 - 6 2026-07-09
DAH6165 - 6 2026-07-13
DAH6255 - 5 2026-07-10
DAH6169 - 5 2026-06-22
DAH6180 - 4 2026-06-25
DAH6164 Air Algerie 4 2026-06-22
DAH6389 - 3 2026-07-11
DAH6385 - 3 2026-07-12
DAH6380 - 3 2026-07-11
DAH6378 - 3 2026-07-10
DAH6332 - 3 2026-07-08
DAH6181 - 3 2026-06-25
DAH6058 - 3 2026-07-06
DAH6052 Air Algerie 3 2026-06-12
DAH6033 Air Algerie 3 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAH6168 - Jul 14, 08:25 UTCJul 14, 09:00 UTC35m
2026-07-13 DAH6165 - Jul 13, 16:35 UTCJul 13, 16:55 UTC20m
2026-07-13 DAH6165 - Jul 13, 12:40 UTCJul 13, 13:35 UTC55m
2026-07-13 DAH6188 - Jul 13, 11:10 UTCJul 13, 11:35 UTC25m
2026-07-13 DAH6188 - Jul 13, 07:15 UTCJul 13, 07:45 UTC30m
2026-07-12 DAH6388 - Jul 12, 16:55 UTCJul 12, 17:25 UTC30m
2026-07-12 DAH6385 - Jul 12, 14:40 UTCJul 12, 15:10 UTC30m
2026-07-12 DAH6384 - Jul 12, 09:30 UTCJul 12, 09:55 UTC25m
2026-07-11 DAH6381 GHA → ORN Jul 11, 15:30 UTCJul 11, 16:05 UTC35m
2026-07-11 DAH6380 - Jul 11, 12:40 UTCJul 11, 13:25 UTC45m
2026-07-11 DAH6389 - Jul 11, 10:55 UTCJul 11, 11:10 UTC15m
2026-07-11 DAH6388 - Jul 11, 07:00 UTCJul 11, 07:25 UTC25m
2026-07-10 DAH6255 - Jul 10, 22:25 UTCJul 10, 23:05 UTC40m
2026-07-10 DAH6254 - Jul 10, 19:15 UTCJul 10, 19:40 UTC25m
2026-07-10 DAH6383 - Jul 10, 13:15 UTCJul 10, 13:45 UTC30m
2026-07-10 DAH6379 TMX → ORN Jul 10, 11:15 UTCJul 10, 11:40 UTC25m
2026-07-10 DAH6378 - Jul 10, 06:50 UTCJul 10, 07:25 UTC35m
2026-07-09 DAH6184 - Jul 9, 22:45 UTCJul 9, 23:45 UTC1h 0m
2026-07-09 DAH6038 - Jul 9, 19:15 UTCJul 9, 19:30 UTC15m
2026-07-09 DAH6183 - Jul 9, 13:30 UTCJul 9, 14:10 UTC40m
2026-07-09 DAH6182 - Jul 9, 11:40 UTCJul 9, 12:15 UTC35m
2026-07-09 DAH6192 - Jul 9, 06:20 UTCJul 9, 06:30 UTC10m
2026-07-08 DAH6333 - Jul 8, 17:50 UTCJul 8, 18:30 UTC40m
2026-07-08 DAH6332 - Jul 8, 16:10 UTCJul 8, 16:55 UTC45m
2026-07-08 DAH6461 - Jul 8, 13:55 UTCJul 8, 14:05 UTC10m
2026-07-07 DAH6460 - Jul 7, 11:30 UTCJul 7, 11:45 UTC15m
2026-07-06 DAH6178 - Jul 6, 19:00 UTCJul 6, 19:45 UTC45m
2026-07-06 DAH6059 - Jul 6, 16:55 UTCJul 6, 17:40 UTC45m
2026-07-06 DAH6058 - Jul 6, 15:40 UTCJul 6, 16:15 UTC35m
2026-07-05 DAH6202 - Jul 5, 17:45 UTCJul 5, 18:00 UTC15m
2026-07-05 DAH6071 LOO → ALG Jul 5, 13:55 UTCJul 5, 14:15 UTC20m
2026-07-05 DAH6277 - Jul 5, 09:45 UTCJul 5, 10:10 UTC25m
2026-07-05 DAH6276 - Jul 5, 07:00 UTCJul 5, 07:25 UTC25m
2026-07-03 DAH6296 - Jul 3, 21:25 UTCJul 3, 21:35 UTC10m
2026-06-27 DAH6325 CZL → ALG Jun 27, 14:09 UTCJun 27, 14:54 UTC45m
2026-06-26 DAH6297 - Jun 26, 04:00 UTCJun 26, 04:30 UTC30m
2026-06-25 DAH6181 - Jun 25, 07:59 UTCJun 25, 08:20 UTC20m
2026-06-25 DAH6180 - Jun 25, 06:35 UTCJun 25, 07:00 UTC25m
2026-06-24 DAH6037 - Jun 24, 21:24 UTCJun 24, 21:40 UTC15m
2026-06-24 DAH6103 ORN → ALG Jun 24, 16:34 UTCJun 24, 16:59 UTC25m
2026-06-23 DAH6254 ALG → ELU Jun 23, 14:10 UTCJun 23, 14:55 UTC45m
2026-06-23 DAH6168 - Jun 23, 11:29 UTCJun 23, 11:54 UTC25m
2026-06-23 DAH6168 - Jun 23, 08:04 UTCJun 23, 08:30 UTC25m
2026-06-22 DAH6164 AAE → ORN Jun 22, 16:20 UTCJun 22, 16:50 UTC30m
2026-06-22 DAH6165 - Jun 22, 12:25 UTCJun 22, 13:05 UTC40m
2026-06-22 DAH6169 - Jun 22, 11:04 UTCJun 22, 11:19 UTC15m
2026-06-21 DAH6388 - Jun 21, 17:35 UTCJun 21, 18:00 UTC25m
2026-06-20 DAH6380 ORN → GHA Jun 20, 12:54 UTCJun 20, 13:29 UTC35m
2026-06-20 DAH6388 - Jun 20, 07:09 UTCJun 20, 07:34 UTC25m
2026-06-19 DAH6255 TMR → ELU Jun 19, 22:49 UTCJun 19, 23:25 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 7T-VUI page for operator, model, and routing details .

Mode-S 0A0039 frequently asked

What is Mode-S code 0A0039?
0A0039 is an ICAO 24-bit transponder address. Allocated to Algeria. Assigned to 7T-VUI.
Where is Mode-S 0A0039 registered?
Mode-S code 0A0039 is allocated to Algeria (DZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0A0039 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 0A0039, octal 02400071, decimal 655,417.
What flights does 0A0039 operate?
Mode-S 0A0039 has broadcast 20 distinct callsigns, including DAH6183, DAH6388, DAH6254, DAH6184, DAH6168.