Apparatus

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sensors Mode-S transponder

8422F9

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA09RK · BOEING 737-800

Hex
8422F9
Octal
41021371
Decimal
8,659,705
Country
JP
Tail
JA09RK
Type
B738
Broadcasting now · callsign JTA58 · 1,700 ft
Flights observed
367
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 02:45 UTC

Current position

8422F9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8422F9 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 20 distinct

Callsign Airline Flights Last seen
JTA9 - 14 2026-07-13
JTA37 - 14 2026-07-18
JTA83 - 13 2026-07-15
JTA2 - 13 2026-07-14
JTA13 - 13 2026-07-17
JTA57 Japan Transocean Air 12 2026-07-25
JTA16 - 12 2026-07-15
JTA302 Japan Transocean Air 11 2026-07-26
JTA61 Japan Transocean Air 9 2026-07-24
JTA54 Japan Transocean Air 9 2026-07-24
JTA52 Japan Transocean Air 9 2026-07-25
JTA51 Japan Transocean Air 9 2026-07-02
JTA301 Japan Transocean Air 9 2026-07-25
JTA65 Japan Transocean Air 8 2026-07-24
JTA42 - 8 2026-06-30
JTA36 - 8 2026-07-18
JTA5 - 7 2026-06-29
JTA49 Japan Transocean Air 7 2026-07-25
JTA44 Japan Transocean Air 7 2026-07-25
JTA1 - 7 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JTA302 TPE → OKA Jul 26, 02:25 UTCJul 26, 02:45 UTC20m
2026-07-25 JTA301 OKA → TPE Jul 25, 23:50 UTCJul 26, 00:55 UTC1h 5m
2026-07-25 JTA49 NGO → OKA Jul 25, 09:50 UTCJul 25, 11:30 UTC1h 40m
2026-07-25 JTA44 OKA → NGO Jul 25, 07:00 UTCJul 25, 08:30 UTC1h 30m
2026-07-25 JTA57 FUK → OKA Jul 25, 05:30 UTCJul 25, 05:45 UTC15m
2026-07-25 JTA57 FUK → OKA Jul 25, 04:35 UTCJul 25, 04:50 UTC15m
2026-07-25 JTA52 OKA → FUK Jul 25, 01:55 UTCJul 25, 03:20 UTC1h 25m
2026-07-24 JTA65 FUK → OKA Jul 24, 13:10 UTCJul 24, 13:30 UTC20m
2026-07-24 JTA65 FUK → OKA Jul 24, 12:20 UTCJul 24, 12:30 UTC10m
2026-07-24 JTA60 OKA → FUK Jul 24, 10:05 UTCJul 24, 11:10 UTC1h 5m
2026-07-24 JTA61 FUK → OKA Jul 24, 08:30 UTCJul 24, 08:50 UTC20m
2026-07-24 JTA61 FUK → OKA Jul 24, 07:30 UTCJul 24, 07:45 UTC15m
2026-07-24 JTA54 OKA → FUK Jul 24, 05:55 UTCJul 24, 06:15 UTC20m
2026-07-24 JTA54 OKA → FUK Jul 24, 05:05 UTCJul 24, 05:20 UTC15m
2026-07-24 JTA558 MMY → OKA Jul 24, 03:35 UTCJul 24, 03:50 UTC15m
2026-07-23 JTA43 NGO → OKA Jul 23, 22:50 UTCJul 24, 00:30 UTC1h 40m
2026-07-23 JTA46 OKA → NGO Jul 23, 11:00 UTCJul 23, 12:30 UTC1h 30m
2026-07-23 JTA63 FUK → OKA Jul 23, 08:35 UTCJul 23, 09:50 UTC1h 15m
2026-07-23 JTA58 OKA → FUK Jul 23, 06:10 UTCJul 23, 07:25 UTC1h 15m
2026-07-23 JTA302 TPE → OKA Jul 23, 03:30 UTCJul 23, 03:40 UTC10m
2026-07-23 JTA302 TPE → OKA Jul 23, 02:35 UTCJul 23, 02:50 UTC15m
2026-07-23 JTA301 OKA → TPE Jul 23, 00:25 UTCJul 23, 00:45 UTC20m
2026-07-21 JTA600 ISG → OKA Jul 21, 00:40 UTCJul 21, 00:50 UTC10m
2026-07-20 JTA57 FUK → OKA Jul 20, 05:35 UTCJul 20, 06:00 UTC25m
2026-07-20 JTA57 FUK → OKA Jul 20, 04:40 UTCJul 20, 05:00 UTC20m
2026-07-20 JTA52 - Jul 20, 01:50 UTCJul 20, 02:55 UTC1h 5m
2026-07-19 JTA49 - Jul 19, 10:00 UTCJul 19, 11:40 UTC1h 40m
2026-07-19 JTA44 OKA → NGO Jul 19, 08:25 UTCJul 19, 08:50 UTC25m
2026-07-19 JTA44 OKA → NGO Jul 19, 07:05 UTCJul 19, 07:20 UTC15m
2026-07-18 JTA121 - Jul 18, 22:50 UTCJul 19, 00:30 UTC1h 40m
2026-07-18 JTA128 - Jul 18, 11:45 UTCJul 18, 13:20 UTC1h 35m
2026-07-18 JTA37 - Jul 18, 07:10 UTCJul 18, 07:25 UTC15m
2026-07-18 JTA37 - Jul 18, 05:40 UTCJul 18, 06:30 UTC50m
2026-07-18 JTA36 - Jul 18, 02:40 UTCJul 18, 04:40 UTC2h 1m
2026-07-17 JTA13 - Jul 17, 23:45 UTCJul 18, 01:10 UTC1h 25m
2026-07-17 JAL241 - Jul 17, 11:30 UTCJul 17, 12:15 UTC45m
2026-07-17 JAL240 - Jul 17, 09:04 UTCJul 17, 10:15 UTC1h 10m
2026-07-17 JAL237 - Jul 17, 06:25 UTCJul 17, 07:05 UTC40m
2026-07-17 JAL236 - Jul 17, 03:45 UTCJul 17, 05:04 UTC1h 20m
2026-07-17 JAL233 - Jul 17, 01:49 UTCJul 17, 02:39 UTC50m
2026-07-16 JAL182 KMQ → HND Jul 16, 22:49 UTCJul 16, 23:40 UTC50m
2026-07-16 JAL193 - Jul 16, 11:54 UTCJul 16, 12:40 UTC45m
2026-07-16 JAL190 - Jul 16, 09:50 UTCJul 16, 10:50 UTC1h 0m
2026-07-16 JAL189 - Jul 16, 08:15 UTCJul 16, 08:55 UTC40m
2026-07-16 JAL188 - Jul 16, 06:05 UTCJul 16, 07:00 UTC55m
2026-07-16 JAL187 - Jul 16, 04:25 UTCJul 16, 05:05 UTC40m
2026-07-16 JAL186 - Jul 16, 02:15 UTCJul 16, 03:15 UTC1h 0m
2026-07-16 JAL185 - Jul 16, 00:45 UTCJul 16, 01:25 UTC40m
2026-07-15 JAL232 - Jul 15, 22:25 UTCJul 15, 23:35 UTC1h 10m
2026-07-15 JTA16 - Jul 15, 09:55 UTCJul 15, 11:25 UTC1h 30m

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 JA09RK page for operator, model, and routing details .

Mode-S 8422F9 frequently asked

What is Mode-S code 8422F9?
8422F9 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA09RK.
Where is Mode-S 8422F9 registered?
Mode-S code 8422F9 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8422F9 broadcasting right now?
Yes. Mode-S 8422F9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8422F9, octal 41021371, decimal 8,659,705.
What flights does 8422F9 operate?
Mode-S 8422F9 has broadcast 20 distinct callsigns, including JTA9, JTA37, JTA83, JTA2, JTA13.