Apparatus

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sensors Mode-S transponder

86CF91

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA809X · BOEING 737-800

Hex
86CF91
Octal
41547621
Decimal
8,834,961
Country
JP
Tail
JA809X
Type
B738
No current signal · last broadcast 2h ago
Flights observed
235
Distinct callsigns
20
Country
JP
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 86CF91.

Country allocation

The ICAO 24-bit address 86CF91 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
SNJ11 Skynet Asia Airways 11 2026-05-24
SNJ97 Skynet Asia Airways 10 2026-05-25
SNJ18 Skynet Asia Airways 10 2026-05-25
SNJ14 Skynet Asia Airways 10 2026-05-25
SNJ98 Skynet Asia Airways 9 2026-05-25
SNJ15 Skynet Asia Airways 9 2026-05-25
SNJ65 Skynet Asia Airways 6 2026-05-29
SNJ62 Skynet Asia Airways 6 2026-05-29
SNJ77 Skynet Asia Airways 5 2026-05-28
SNJ59T Skynet Asia Airways 5 2026-05-29
SNJ56 Skynet Asia Airways 5 2026-05-30
SNJ32 Skynet Asia Airways 5 2026-05-21
SNJ31 Skynet Asia Airways 5 2026-05-20
SNJ26 Skynet Asia Airways 5 2026-05-18
SNJ23 Skynet Asia Airways 5 2026-05-24
SNJ20 Skynet Asia Airways 5 2026-05-21
SNJ17 Skynet Asia Airways 5 2026-05-21
SNJ127 Skynet Asia Airways 5 2026-05-19
SNJ71 Skynet Asia Airways 4 2026-04-28
SNJ58 Skynet Asia Airways 4 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SNJ56 KMI → HND May 30, 02:45 UTCMay 30, 03:55 UTC1h 10m
2026-05-30 SNJ107 NGO → KMI May 30, 00:45 UTCMay 30, 01:20 UTC35m
2026-05-29 SNJ108 KMI → NGO May 29, 23:25 UTCMay 29, 23:35 UTC10m
2026-05-29 SNJ65 HND → KMI May 29, 10:30 UTCMay 29, 11:30 UTC1h 0m
2026-05-29 SNJ62 KMI → HND May 29, 08:50 UTCMay 29, 09:35 UTC45m
2026-05-29 SNJ59T HND → KMI May 29, 06:15 UTCMay 29, 07:15 UTC1h 0m
2026-05-29 SNJ34 NGS → HND May 29, 04:00 UTCMay 29, 05:20 UTC1h 20m
2026-05-29 SNJ33 HND → NGS May 29, 00:55 UTCMay 29, 02:20 UTC1h 25m
2026-05-28 SNJ77 HND → KOJ May 28, 06:30 UTCMay 28, 23:35 UTC17h 5m
2026-05-28 SNJ58 KMI → HND May 28, 03:55 UTCMay 28, 05:10 UTC1h 15m
2026-05-28 SNJ55 HND → KMI May 28, 01:15 UTCMay 28, 02:15 UTC1h 0m
2026-05-27 SNJ12 KMJ → HND May 27, 22:50 UTCMay 28, 00:05 UTC1h 15m
2026-05-27 SNJ19 HND → KMJ May 27, 09:35 UTCMay 27, 10:55 UTC1h 20m
2026-05-27 SNJ36 NGS → HND May 27, 07:10 UTCMay 27, 08:35 UTC1h 25m
2026-05-27 SNJ35 HND → NGS May 27, 04:09 UTCMay 27, 05:29 UTC1h 20m
2026-05-27 SNJ74 KOJ → HND May 27, 01:29 UTCMay 27, 02:34 UTC1h 5m
2026-05-26 SNJ115 NGO → KOJ May 26, 23:19 UTCMay 27, 00:00 UTC40m
2026-05-26 SNJ118 KOJ → NGO May 26, 12:20 UTCMay 26, 12:35 UTC15m
2026-05-26 SNJ79 HND → KOJ May 26, 09:29 UTCMay 26, 10:29 UTC1h 0m
2026-05-26 SNJ78 KOJ → HND May 26, 06:59 UTCMay 26, 07:59 UTC1h 0m
2026-05-26 SNJ75 HND → KOJ May 26, 04:24 UTCMay 26, 05:25 UTC1h 0m
2026-05-25 SNJ21 HND → OKA May 25, 21:24 UTCMay 26, 03:09 UTC5h 45m
2026-05-25 SNJ98 OIT → HND May 25, 11:35 UTCMay 25, 12:35 UTC1h 0m
2026-05-25 SNJ97 HND → OIT May 25, 09:20 UTCMay 25, 10:20 UTC1h 0m
2026-05-25 SNJ18 KMJ → HND May 25, 06:20 UTCMay 25, 07:30 UTC1h 10m
2026-05-25 SNJ15 HND → KMJ May 25, 03:35 UTCMay 25, 04:50 UTC1h 15m
2026-05-25 SNJ14 KMJ → HND May 25, 01:55 UTCMay 25, 02:15 UTC20m
2026-05-24 SNJ11 HND → KMJ May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SNJ23 HND → OKA May 24, 05:00 UTCMay 24, 13:50 UTC8h 50m
2026-05-24 SNJ56 KMI → HND May 24, 02:55 UTCMay 24, 04:00 UTC1h 5m
2026-05-24 SNJ107 NGO → KMI May 24, 00:55 UTCMay 24, 01:25 UTC30m
2026-05-23 SNJ108 KMI → NGO May 23, 23:10 UTCMay 23, 23:55 UTC45m
2026-05-23 SNJ65 HND → KMI May 23, 10:45 UTCMay 23, 11:45 UTC1h 0m
2026-05-23 SNJ62 KMI → HND May 23, 08:30 UTCMay 23, 09:30 UTC1h 0m
2026-05-23 SNJ59T HND → KMI May 23, 06:00 UTCMay 23, 07:00 UTC1h 0m
2026-05-23 SNJ34 NGS → HND May 23, 03:25 UTCMay 23, 05:05 UTC1h 40m
2026-05-23 SNJ33 HND → NGS May 23, 00:50 UTCMay 23, 02:15 UTC1h 25m
2026-05-22 SNJ72 KOJ → HND May 22, 22:40 UTCMay 22, 23:45 UTC1h 5m
2026-05-22 SNJ77 HND → KOJ May 22, 06:50 UTCMay 22, 07:50 UTC1h 0m
2026-05-22 SNJ14 KMJ → HND May 22, 01:15 UTCMay 22, 02:20 UTC1h 5m
2026-05-21 SNJ11 HND → KMJ May 21, 22:50 UTCMay 22, 00:00 UTC1h 10m
2026-05-21 SNJ20 KMJ → HND May 21, 10:40 UTCMay 21, 11:45 UTC1h 5m
2026-05-21 SNJ17 HND → KMJ May 21, 07:55 UTCMay 21, 09:35 UTC1h 40m
2026-05-21 SNJ57 HND → KMI May 21, 03:30 UTCMay 21, 06:55 UTC3h 25m
2026-05-21 SNJ32 NGS → HND May 21, 00:55 UTCMay 21, 02:25 UTC1h 30m
2026-05-20 SNJ31 HND → NGS May 20, 22:20 UTCMay 20, 23:50 UTC1h 30m
2026-05-20 SNJ98 OIT → HND May 20, 11:00 UTCMay 20, 12:15 UTC1h 15m
2026-05-20 SNJ97 HND → OIT May 20, 08:40 UTCMay 20, 09:45 UTC1h 5m
2026-05-20 SNJ18 KMJ → HND May 20, 06:10 UTCMay 20, 07:40 UTC1h 30m
2026-05-20 SNJ15 HND → KMJ May 20, 03:50 UTCMay 20, 05:10 UTC1h 21m

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 JA809X page for operator, model, and routing details .

Mode-S 86CF91 frequently asked

What is Mode-S code 86CF91?
86CF91 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA809X.
Where is Mode-S 86CF91 registered?
Mode-S code 86CF91 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86CF91 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86CF91, octal 41547621, decimal 8,834,961.
What flights does 86CF91 operate?
Mode-S 86CF91 has broadcast 20 distinct callsigns, including SNJ11, SNJ97, SNJ18, SNJ14, SNJ98.