Apparatus

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sensors Mode-S transponder

86D237

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA812X · BOEING 737-800

Hex
86D237
Octal
41551067
Decimal
8,835,639
Country
JP
Tail
JA812X
Type
B738
No current signal · last broadcast Jul 26, 13:50 UTC
Flights observed
576
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 13:50 UTC

Last known position

Most recent position reported by Mode-S 86D237.

Country allocation

The ICAO 24-bit address 86D237 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
SNJ129 Skynet Asia Airways 20 2026-07-26
SNJ25 Skynet Asia Airways 18 2026-07-25
SNJ125 Skynet Asia Airways 17 2026-07-21
SNJ96 Skynet Asia Airways 14 2026-07-25
SNJ93 Skynet Asia Airways 14 2026-07-25
SNJ61 Skynet Asia Airways 14 2026-07-24
SNJ16 Skynet Asia Airways 14 2026-07-24
SNJ13 Skynet Asia Airways 14 2026-07-24
SNJ122 - 14 2026-07-21
SNJ95 Skynet Asia Airways 13 2026-07-25
SNJ94 Skynet Asia Airways 13 2026-07-25
SNJ92 Skynet Asia Airways 13 2026-07-23
SNJ91 Skynet Asia Airways 13 2026-07-23
SNJ52 Skynet Asia Airways 13 2026-07-24
SNJ128 Skynet Asia Airways 12 2026-07-26
SNJ80 Skynet Asia Airways 11 2026-07-21
SNJ102 Skynet Asia Airways 11 2026-07-21
SNJ84 Skynet Asia Airways 10 2026-07-25
SNJ130 Skynet Asia Airways 10 2026-07-26
SNJ110 Skynet Asia Airways 10 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SNJ130 OKA → UKB Jul 26, 12:10 UTCJul 26, 13:45 UTC1h 35m
2026-07-26 SNJ129 UKB → OKA Jul 26, 10:25 UTCJul 26, 10:45 UTC20m
2026-07-26 SNJ129 UKB → OKA Jul 26, 09:05 UTCJul 26, 09:40 UTC35m
2026-07-26 SNJ128 OKA → UKB Jul 26, 06:30 UTCJul 26, 08:10 UTC1h 41m
2026-07-25 SNJ84 OKA → KOJ Jul 25, 22:45 UTCJul 26, 01:35 UTC2h 50m
2026-07-25 SNJ25 HND → OKA Jul 25, 13:20 UTCJul 25, 13:30 UTC10m
2026-07-25 SNJ25 HND → OKA Jul 25, 11:25 UTCJul 25, 12:15 UTC50m
2026-07-25 SNJ96 OIT → HND Jul 25, 09:05 UTCJul 25, 10:15 UTC1h 10m
2026-07-25 SNJ95 HND → OIT Jul 25, 06:10 UTCJul 25, 07:10 UTC1h 0m
2026-07-25 SNJ94 OIT → HND Jul 25, 03:30 UTCJul 25, 04:50 UTC1h 20m
2026-07-25 SNJ93 HND → OIT Jul 25, 01:20 UTCJul 25, 02:20 UTC1h 0m
2026-07-24 SNJ52 KMI → HND Jul 24, 23:10 UTCJul 25, 00:15 UTC1h 5m
2026-07-24 SNJ109 - Jul 24, 10:55 UTCJul 24, 11:30 UTC35m
2026-07-24 SNJ110 KMI → NGO Jul 24, 09:20 UTCJul 24, 09:45 UTC25m
2026-07-24 SNJ61 HND → KMI Jul 24, 07:05 UTCJul 24, 08:00 UTC55m
2026-07-24 SNJ16 KMJ → HND Jul 24, 04:45 UTCJul 24, 06:00 UTC1h 15m
2026-07-24 SNJ13 HND → KMJ Jul 24, 02:00 UTCJul 24, 03:15 UTC1h 15m
2026-07-23 SNJ92 OIT → HND Jul 23, 23:40 UTCJul 24, 00:55 UTC1h 15m
2026-07-23 SNJ91 HND → OIT Jul 23, 21:40 UTCJul 23, 22:40 UTC1h 0m
2026-07-23 SNJ38 NGS → HND Jul 23, 12:15 UTCJul 23, 13:35 UTC1h 20m
2026-07-23 SNJ37 - Jul 23, 10:00 UTCJul 23, 11:25 UTC1h 25m
2026-07-23 SNJ24 OKA → HND Jul 23, 06:45 UTCJul 23, 09:05 UTC2h 20m
2026-07-23 SNJ121 NGO → OKA Jul 23, 03:50 UTCJul 23, 05:25 UTC1h 35m
2026-07-23 SNJ116 KOJ → NGO Jul 23, 01:45 UTCJul 23, 02:30 UTC45m
2026-07-22 SNJ71 - Jul 22, 23:10 UTCJul 23, 00:15 UTC1h 5m
2026-07-22 SNJ98 - Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-22 SNJ15 HND → KMJ Jul 22, 03:35 UTCJul 22, 04:50 UTC1h 15m
2026-07-22 SNJ14 KMJ → HND Jul 22, 01:00 UTCJul 22, 02:25 UTC1h 25m
2026-07-21 SNJ11 - Jul 21, 22:35 UTCJul 21, 23:55 UTC1h 20m
2026-07-21 SNJ80 KOJ → HND Jul 21, 12:05 UTCJul 21, 13:20 UTC1h 15m
2026-07-21 SNJ117 - Jul 21, 10:10 UTCJul 21, 10:45 UTC35m
2026-07-21 SNJ122 - Jul 21, 08:30 UTCJul 21, 08:40 UTC10m
2026-07-21 SNJ122 - Jul 21, 07:15 UTCJul 21, 07:30 UTC15m
2026-07-21 SNJ101 - Jul 21, 05:25 UTCJul 21, 05:40 UTC15m
2026-07-21 SNJ101 - Jul 21, 04:25 UTCJul 21, 04:45 UTC20m
2026-07-21 SNJ102 OKA → FUK Jul 21, 01:50 UTCJul 21, 02:55 UTC1h 5m
2026-07-21 SNJ125 UKB → OKA Jul 21, 00:25 UTCJul 21, 00:40 UTC15m
2026-07-20 SNJ125 UKB → OKA Jul 20, 23:00 UTCJul 20, 23:40 UTC40m
2026-07-20 SNJ130 OKA → UKB Jul 20, 11:40 UTCJul 20, 13:10 UTC1h 30m
2026-07-20 SNJ129 - Jul 20, 10:10 UTCJul 20, 10:25 UTC15m
2026-07-20 SNJ129 - Jul 20, 08:50 UTCJul 20, 09:30 UTC40m
2026-07-20 SNJ128 - Jul 20, 06:20 UTCJul 20, 07:55 UTC1h 35m
2026-07-20 SNJ44 ISG → OKA Jul 20, 04:45 UTCJul 20, 04:55 UTC10m
2026-07-20 SNJ83 - Jul 20, 01:20 UTCJul 20, 01:35 UTC15m
2026-07-19 SNJ84 OKA → KOJ Jul 19, 22:45 UTCJul 19, 22:55 UTC10m
2026-07-19 SNJ25 - Jul 19, 10:55 UTCJul 19, 12:55 UTC2h 0m
2026-07-19 SNJ96 - Jul 19, 08:20 UTCJul 19, 09:40 UTC1h 20m
2026-07-19 SNJ95 HND → OIT Jul 19, 05:55 UTCJul 19, 07:00 UTC1h 5m
2026-07-19 SNJ94 OIT → HND Jul 19, 03:30 UTCJul 19, 04:40 UTC1h 10m
2026-07-19 SNJ93 HND → OIT Jul 19, 01:05 UTCJul 19, 02:10 UTC1h 5m

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 JA812X page for operator, model, and routing details .

Mode-S 86D237 frequently asked

What is Mode-S code 86D237?
86D237 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA812X.
Where is Mode-S 86D237 registered?
Mode-S code 86D237 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86D237 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86D237, octal 41551067, decimal 8,835,639.
What flights does 86D237 operate?
Mode-S 86D237 has broadcast 20 distinct callsigns, including SNJ129, SNJ25, SNJ125, SNJ96, SNJ93.