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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 21d ago
Flights observed
337
Distinct callsigns
20
Country
JP
Last broadcast
21d 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 - 12 2026-06-18
SNJ97 - 11 2026-06-19
SNJ18 - 11 2026-06-19
SNJ14 - 11 2026-06-19
SNJ98 - 10 2026-06-19
SNJ15 - 10 2026-06-19
SNJ65 - 8 2026-06-14
SNJ62 - 8 2026-06-14
SNJ23 - 8 2026-06-15
SNJ77 - 7 2026-06-13
SNJ59T - 7 2026-06-14
SNJ56 - 7 2026-06-15
SNJ32 - 7 2026-06-18
SNJ31 - 7 2026-06-17
SNJ20 - 7 2026-06-18
SNJ17 - 7 2026-06-18
SNJ12 - 7 2026-06-12
SNJ71 Skynet Asia Airways 6 2026-06-19
SNJ64 - 6 2026-06-22
SNJ58 - 6 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-22 SNJ9077 - Jun 22, 18:15 UTCJun 22, 20:39 UTC2h 25m
2026-06-22 SNJ64 - Jun 22, 05:10 UTCJun 22, 11:00 UTC5h 50m
2026-06-22 SNJ126 - Jun 22, 03:40 UTCJun 22, 04:24 UTC45m
2026-06-21 SNJ51 - Jun 21, 22:04 UTCJun 21, 23:05 UTC1h 0m
2026-06-21 SNJ64 UKB → HND Jun 21, 05:15 UTCJun 21, 11:10 UTC5h 55m
2026-06-21 SNJ126 - Jun 21, 03:44 UTCJun 21, 04:24 UTC40m
2026-06-20 SNJ51 - Jun 20, 22:10 UTCJun 20, 23:10 UTC1h 0m
2026-06-20 SNJ38 - Jun 20, 12:24 UTCJun 20, 13:49 UTC1h 25m
2026-06-20 SNJ37 - Jun 20, 10:04 UTCJun 20, 11:30 UTC1h 25m
2026-06-20 SNJ24 - Jun 20, 03:49 UTCJun 20, 08:59 UTC5h 10m
2026-06-20 SNJ116 - Jun 20, 02:09 UTCJun 20, 02:24 UTC15m
2026-06-19 SNJ71 HND → KOJ Jun 19, 23:09 UTCJun 20, 00:14 UTC1h 5m
2026-06-19 SNJ98 - Jun 19, 11:04 UTCJun 19, 12:19 UTC1h 15m
2026-06-19 SNJ97 - Jun 19, 08:34 UTCJun 19, 09:40 UTC1h 5m
2026-06-19 SNJ18 - Jun 19, 06:20 UTCJun 19, 07:34 UTC1h 15m
2026-06-19 SNJ15 - Jun 19, 03:34 UTCJun 19, 04:44 UTC1h 10m
2026-06-19 SNJ14 - Jun 19, 01:04 UTCJun 19, 02:24 UTC1h 20m
2026-06-18 SNJ11 - Jun 18, 22:40 UTCJun 19, 00:10 UTC1h 29m
2026-06-18 SNJ20 - Jun 18, 10:20 UTCJun 18, 11:25 UTC1h 5m
2026-06-18 SNJ17 - Jun 18, 07:55 UTCJun 18, 09:15 UTC1h 20m
2026-06-18 SNJ60 - Jun 18, 05:50 UTCJun 18, 06:50 UTC1h 0m
2026-06-18 SNJ57 - Jun 18, 03:30 UTCJun 18, 04:35 UTC1h 5m
2026-06-18 SNJ32 - Jun 18, 00:55 UTCJun 18, 02:05 UTC1h 10m
2026-06-17 SNJ31 - Jun 17, 22:35 UTCJun 18, 00:00 UTC1h 25m
2026-06-17 SNJ38 - Jun 17, 12:25 UTCJun 17, 13:50 UTC1h 25m
2026-06-17 SNJ37 - Jun 17, 10:05 UTCJun 17, 11:35 UTC1h 30m
2026-06-17 SNJ24 - Jun 17, 04:10 UTCJun 17, 09:20 UTC5h 10m
2026-06-16 SNJ71 HND → KOJ Jun 16, 23:05 UTCJun 17, 02:25 UTC3h 20m
2026-06-16 SNJ20 - Jun 16, 10:25 UTCJun 16, 11:30 UTC1h 5m
2026-06-16 SNJ17 - Jun 16, 08:00 UTCJun 16, 09:25 UTC1h 25m
2026-06-16 SNJ57 HND → HND Jun 16, 03:20 UTCJun 16, 06:59 UTC3h 40m
2026-06-16 SNJ32 - Jun 16, 00:50 UTCJun 16, 02:20 UTC1h 30m
2026-06-15 SNJ31 - Jun 15, 22:30 UTCJun 15, 23:50 UTC1h 20m
2026-06-15 SNJ23 HND → HND Jun 15, 05:04 UTCJun 15, 13:34 UTC8h 30m
2026-06-15 SNJ56 - Jun 15, 02:44 UTCJun 15, 03:45 UTC1h 0m
2026-06-15 SNJ107 - Jun 15, 00:45 UTCJun 15, 01:00 UTC15m
2026-06-14 SNJ108 - Jun 14, 23:25 UTCJun 14, 23:44 UTC20m
2026-06-14 SNJ65 - Jun 14, 11:00 UTCJun 14, 12:00 UTC1h 0m
2026-06-14 SNJ62 - Jun 14, 08:35 UTCJun 14, 09:45 UTC1h 10m
2026-06-14 SNJ59T - Jun 14, 05:45 UTCJun 14, 06:45 UTC1h 0m
2026-06-14 SNJ34 - Jun 14, 03:25 UTCJun 14, 04:45 UTC1h 20m
2026-06-14 SNJ33 - Jun 14, 00:55 UTCJun 14, 02:25 UTC1h 30m
2026-06-13 SNJ77 HND → HND Jun 13, 06:25 UTCJun 13, 23:40 UTC17h 15m
2026-06-13 SNJ58 - Jun 13, 04:00 UTCJun 13, 05:00 UTC1h 0m
2026-06-13 SNJ55 - Jun 13, 01:35 UTCJun 13, 02:35 UTC1h 0m
2026-06-12 SNJ12 - Jun 12, 22:50 UTCJun 13, 00:05 UTC1h 15m
2026-06-12 SNJ19 HND → KMJ Jun 12, 10:40 UTCJun 12, 11:50 UTC1h 10m
2026-06-12 SNJ36 NGS → HND Jun 12, 08:20 UTCJun 12, 09:40 UTC1h 20m
2026-06-12 SNJ35 HND → NGS Jun 12, 05:35 UTCJun 12, 07:10 UTC1h 35m
2026-06-12 SNJ56 KMI → HND Jun 12, 03:00 UTCJun 12, 04:25 UTC1h 25m

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 21d 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.