Apparatus

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sensors Mode-S transponder

86CF4D

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA807X · BOEING 737-800

Hex
86CF4D
Octal
41547515
Decimal
8,834,893
Country
JP
Tail
JA807X
Type
B738
No current signal · last broadcast 13h ago
Flights observed
243
Distinct callsigns
20
Country
JP
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 86CF4D.

Country allocation

The ICAO 24-bit address 86CF4D 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
SNJ77 Skynet Asia Airways 6 2026-05-18
SNJ75 Skynet Asia Airways 6 2026-05-16
SNJ21 Skynet Asia Airways 6 2026-05-15
SNJ79 Skynet Asia Airways 5 2026-05-16
SNJ72 Skynet Asia Airways 5 2026-05-18
SNJ61 Skynet Asia Airways 5 2026-05-28
SNJ56 Skynet Asia Airways 5 2026-05-20
SNJ55 Skynet Asia Airways 5 2026-05-18
SNJ36 Skynet Asia Airways 5 2026-05-17
SNJ35 Skynet Asia Airways 5 2026-05-17
SNJ34 Skynet Asia Airways 5 2026-05-19
SNJ33 Skynet Asia Airways 5 2026-05-19
SNJ26 Skynet Asia Airways 5 2026-05-20
SNJ25 Skynet Asia Airways 5 2026-05-29
SNJ23 Skynet Asia Airways 5 2026-05-20
SNJ22 Skynet Asia Airways 5 2026-05-16
SNJ19 Skynet Asia Airways 5 2026-05-17
SNJ17 Skynet Asia Airways 5 2026-05-10
SNJ12 Skynet Asia Airways 5 2026-05-17
SNJ96 Skynet Asia Airways 4 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SNJ25 HND → OKA May 29, 11:20 UTCMay 29, 12:05 UTC45m
2026-05-29 SNJ96 OIT → HND May 29, 08:45 UTCMay 29, 09:55 UTC1h 10m
2026-05-29 SNJ95 HND → OIT May 29, 06:30 UTCMay 29, 07:40 UTC1h 10m
2026-05-29 SNJ94 OIT → HND May 29, 04:20 UTCMay 29, 05:20 UTC1h 0m
2026-05-29 SNJ93 HND → OIT May 29, 01:15 UTCMay 29, 02:25 UTC1h 10m
2026-05-28 SNJ52 KMI → HND May 28, 23:10 UTCMay 29, 00:15 UTC1h 5m
2026-05-28 SNJ109 NGO → KMI May 28, 10:50 UTCMay 28, 11:20 UTC30m
2026-05-28 SNJ110 KMI → NGO May 28, 09:25 UTCMay 28, 09:40 UTC15m
2026-05-28 SNJ61 HND → KMI May 28, 06:55 UTCMay 28, 07:50 UTC55m
2026-05-28 SNJ16 KMJ → HND May 28, 04:30 UTCMay 28, 06:00 UTC1h 30m
2026-05-28 SNJ13 HND → KMJ May 28, 02:00 UTCMay 28, 03:25 UTC1h 25m
2026-05-27 SNJ92 OIT → HND May 27, 23:55 UTCMay 28, 00:55 UTC1h 0m
2026-05-27 SNJ91 HND → OIT May 27, 21:40 UTCMay 27, 22:45 UTC1h 5m
2026-05-27 SNJ80 KOJ → HND May 27, 09:50 UTCMay 27, 13:10 UTC3h 20m
2026-05-27 SNJ122 OKA → NGO May 27, 08:15 UTCMay 27, 08:30 UTC15m
2026-05-26 SNJ125 UKB → OKA May 26, 22:59 UTCMay 26, 23:29 UTC30m
2026-05-26 SNJ129 UKB → OKA May 26, 08:45 UTCMay 26, 13:04 UTC4h 20m
2026-05-26 SNJ128 OKA → UKB May 26, 07:24 UTCMay 26, 07:59 UTC35m
2026-05-25 SNJ128 OKA → UKB May 25, 11:20 UTCMay 26, 07:59 UTC20h 39m
2026-05-25 SNJ25 HND → OKA May 25, 11:10 UTCMay 26, 07:59 UTC20h 49m
2026-05-25 SNJ96 OIT → HND May 25, 08:35 UTCMay 25, 09:50 UTC1h 15m
2026-05-25 SNJ95 HND → OIT May 25, 06:00 UTCMay 25, 07:00 UTC1h 0m
2026-05-25 SNJ94 OIT → HND May 25, 03:40 UTCMay 25, 04:45 UTC1h 5m
2026-05-25 SNJ93 HND → OIT May 25, 01:55 UTCMay 25, 02:20 UTC25m
2026-05-24 SNJ52 KMI → HND May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SNJ109 NGO → KMI May 24, 11:15 UTCMay 24, 11:50 UTC35m
2026-05-24 SNJ110 KMI → NGO May 24, 09:15 UTCMay 24, 09:55 UTC40m
2026-05-24 SNJ61 HND → KMI May 24, 06:50 UTCMay 24, 07:50 UTC1h 0m
2026-05-24 SNJ16 KMJ → HND May 24, 04:30 UTCMay 24, 05:35 UTC1h 5m
2026-05-24 SNJ13 HND → KMJ May 24, 02:00 UTCMay 24, 03:25 UTC1h 25m
2026-05-23 SNJ92 OIT → HND May 23, 23:45 UTCMay 24, 00:50 UTC1h 5m
2026-05-23 SNJ91 HND → OIT May 23, 21:40 UTCMay 23, 22:45 UTC1h 5m
2026-05-23 SNJ38 NGS → HND May 23, 12:30 UTCMay 23, 13:45 UTC1h 15m
2026-05-23 SNJ37 HND → NGS May 23, 10:00 UTCMay 23, 11:25 UTC1h 25m
2026-05-22 SNJ38 NGS → HND May 22, 12:30 UTCMay 22, 13:45 UTC1h 15m
2026-05-22 SNJ37 HND → NGS May 22, 10:10 UTCMay 22, 11:25 UTC1h 15m
2026-05-22 SNJ24 OKA → HND May 22, 03:45 UTCMay 22, 09:05 UTC5h 20m
2026-05-22 SNJ116 KOJ → NGO May 22, 01:40 UTCMay 22, 02:20 UTC40m
2026-05-21 SNJ71 HND → KOJ May 21, 23:05 UTCMay 22, 00:15 UTC1h 10m
2026-05-21 SNJ64 KMI → HND May 21, 04:55 UTCMay 21, 11:15 UTC6h 20m
2026-05-21 SNJ126 OKA → UKB May 21, 03:30 UTCMay 21, 04:05 UTC35m
2026-05-21 SNJ67 KMI → OKA May 21, 01:05 UTCMay 21, 01:25 UTC20m
2026-05-20 SNJ51 HND → KMI May 20, 22:05 UTCMay 20, 23:05 UTC1h 0m
2026-05-20 SNJ26 OKA → HND May 20, 11:35 UTCMay 20, 13:35 UTC2h 0m
2026-05-20 SNJ50 ISG → OKA May 20, 10:20 UTCMay 20, 10:35 UTC15m
2026-05-20 SNJ23 HND → OKA May 20, 05:05 UTCMay 20, 07:15 UTC2h 10m
2026-05-20 SNJ56 KMI → HND May 20, 02:45 UTCMay 20, 03:55 UTC1h 10m
2026-05-20 SNJ107 NGO → KMI May 20, 00:40 UTCMay 20, 01:15 UTC35m
2026-05-19 SNJ65 HND → KMI May 19, 10:35 UTCMay 19, 23:35 UTC13h 0m
2026-05-19 SNJ62 KMI → HND May 19, 08:30 UTCMay 19, 09:40 UTC1h 10m

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 JA807X page for operator, model, and routing details .

Mode-S 86CF4D frequently asked

What is Mode-S code 86CF4D?
86CF4D is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA807X.
Where is Mode-S 86CF4D registered?
Mode-S code 86CF4D is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86CF4D broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86CF4D, octal 41547515, decimal 8,834,893.
What flights does 86CF4D operate?
Mode-S 86CF4D has broadcast 20 distinct callsigns, including SNJ77, SNJ75, SNJ21, SNJ79, SNJ72.