Apparatus

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sensors Mode-S transponder

8409DA

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA02QQ · ATR-72-600

Hex
8409DA
Octal
41004732
Decimal
8,653,274
Country
JP
Tail
JA02QQ
Type
AT76
No current signal · last broadcast 22d ago
Flights observed
263
Distinct callsigns
11
Country
JP
Last broadcast
22d ago

Last known position

Most recent position reported by Mode-S 8409DA.

Country allocation

The ICAO 24-bit address 8409DA falls within the block assigned to Japan (JP) by ICAO Annex 10, Volume III. Every aircraft registered in Japan 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 11 distinct

Callsign Airline Flights Last seen
TOK411 - 53 2026-06-20
TOK412 - 52 2026-06-20
TOK401 - 36 2026-06-19
TOK102 - 36 2026-06-20
TOK404 - 29 2026-06-20
TOK103 - 26 2026-06-20
TOK504 Airlines PNG 8 2026-06-14
TOK503 Airlines PNG 8 2026-06-14
TOK502 - 7 2026-06-14
TOK501 - 7 2026-06-14
TOK9801 - 1 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-21 TOK9801 - Jun 21, 23:34 UTCJun 22, 01:05 UTC1h 30m
2026-06-20 TOK404 - Jun 20, 11:14 UTCJun 20, 11:54 UTC40m
2026-06-20 TOK412 - Jun 20, 09:24 UTCJun 20, 10:15 UTC50m
2026-06-20 TOK412 - Jun 20, 07:54 UTCJun 20, 08:49 UTC55m
2026-06-20 TOK103 - Jun 20, 06:24 UTCJun 20, 07:09 UTC45m
2026-06-20 TOK102 - Jun 20, 03:39 UTCJun 20, 04:24 UTC45m
2026-06-20 TOK411 - Jun 20, 02:09 UTCJun 20, 02:54 UTC45m
2026-06-20 TOK411 - Jun 20, 00:44 UTCJun 20, 01:24 UTC40m
2026-06-19 TOK401 - Jun 19, 23:00 UTCJun 19, 23:44 UTC45m
2026-06-19 TOK404 - Jun 19, 11:20 UTCJun 19, 11:59 UTC40m
2026-06-19 TOK412 - Jun 19, 09:24 UTCJun 19, 10:14 UTC50m
2026-06-19 TOK412 - Jun 19, 08:04 UTCJun 19, 08:50 UTC45m
2026-06-19 TOK103 - Jun 19, 06:35 UTCJun 19, 07:19 UTC45m
2026-06-19 TOK102 - Jun 19, 03:44 UTCJun 19, 04:34 UTC50m
2026-06-19 TOK411 - Jun 19, 02:19 UTCJun 19, 03:09 UTC50m
2026-06-19 TOK411 - Jun 19, 00:55 UTCJun 19, 01:45 UTC50m
2026-06-18 TOK401 - Jun 18, 22:55 UTCJun 18, 23:35 UTC40m
2026-06-18 TOK404 - Jun 18, 06:45 UTCJun 18, 07:30 UTC45m
2026-06-18 TOK412 - Jun 18, 04:35 UTCJun 18, 05:25 UTC50m
2026-06-18 TOK412 - Jun 18, 03:05 UTCJun 18, 03:55 UTC50m
2026-06-18 TOK103 - Jun 18, 01:30 UTCJun 18, 02:15 UTC45m
2026-06-16 TOK102 - Jun 16, 04:20 UTCJun 16, 05:05 UTC45m
2026-06-16 TOK411 - Jun 16, 02:40 UTCJun 16, 03:30 UTC50m
2026-06-16 TOK411 - Jun 16, 01:15 UTCJun 16, 02:04 UTC50m
2026-06-15 TOK401 - Jun 15, 23:39 UTCJun 16, 00:20 UTC40m
2026-06-14 TOK504 UKB → KIJ Jun 14, 08:20 UTCJun 14, 09:05 UTC45m
2026-06-14 TOK503 KIJ → UKB Jun 14, 06:25 UTCJun 14, 07:35 UTC1h 10m
2026-06-14 TOK502 - Jun 14, 02:30 UTCJun 14, 03:20 UTC50m
2026-06-14 TOK501 - Jun 14, 00:45 UTCJun 14, 01:50 UTC1h 5m
2026-06-13 TOK102 OKD → KIJ Jun 13, 04:30 UTCJun 13, 05:20 UTC50m
2026-06-13 TOK411 NGO → OKD Jun 13, 02:15 UTCJun 13, 03:15 UTC1h 0m
2026-06-13 TOK411 NGO → OKD Jun 13, 00:55 UTCJun 13, 01:40 UTC45m
2026-06-12 TOK401 - Jun 12, 23:00 UTCJun 12, 23:45 UTC45m
2026-06-12 TOK404 - Jun 12, 11:00 UTCJun 12, 11:45 UTC45m
2026-06-12 TOK412 OKD → NGO Jun 12, 09:15 UTCJun 12, 10:00 UTC45m
2026-06-12 TOK412 OKD → NGO Jun 12, 07:50 UTCJun 12, 08:35 UTC45m
2026-06-12 TOK103 KIJ → OKD Jun 12, 06:20 UTCJun 12, 07:00 UTC40m
2026-06-12 TOK502 - Jun 12, 02:35 UTCJun 12, 03:35 UTC1h 0m
2026-06-12 TOK501 KIJ → UKB Jun 12, 00:35 UTCJun 12, 01:55 UTC1h 20m
2026-06-11 TOK404 - Jun 11, 07:05 UTCJun 11, 07:40 UTC35m
2026-06-11 TOK412 OKD → NGO Jun 11, 04:40 UTCJun 11, 05:20 UTC40m
2026-06-11 TOK412 OKD → NGO Jun 11, 03:10 UTCJun 11, 03:55 UTC45m
2026-06-11 TOK103 KIJ → OKD Jun 11, 01:40 UTCJun 11, 02:25 UTC45m
2026-06-09 TOK102 OKD → KIJ Jun 9, 04:15 UTCJun 9, 05:10 UTC55m
2026-06-09 TOK411 NGO → OKD Jun 9, 02:45 UTCJun 9, 03:30 UTC45m
2026-06-09 TOK411 NGO → OKD Jun 9, 01:25 UTCJun 9, 02:10 UTC45m
2026-06-08 TOK401 KIJ → NGO Jun 8, 23:30 UTCJun 9, 00:20 UTC50m
2026-06-08 TOK404 - Jun 8, 11:05 UTCJun 8, 11:45 UTC40m
2026-06-08 TOK412 OKD → NGO Jun 8, 09:15 UTCJun 8, 10:10 UTC55m
2026-06-08 TOK412 OKD → NGO Jun 8, 07:50 UTCJun 8, 08:40 UTC50m

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 JA02QQ page for operator, model, and routing details .

Mode-S 8409DA frequently asked

What is Mode-S code 8409DA?
8409DA is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA02QQ.
Where is Mode-S 8409DA registered?
Mode-S code 8409DA is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8409DA broadcasting right now?
No active broadcast right now. Last signal was 22d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8409DA, octal 41004732, decimal 8,653,274.
What flights does 8409DA operate?
Mode-S 8409DA has broadcast 11 distinct callsigns, including TOK411, TOK412, TOK401, TOK102, TOK404.