Apparatus

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sensors Mode-S transponder

86CF2B

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA806X · BOEING 737-800

Hex
86CF2B
Octal
41547453
Decimal
8,834,859
Country
JP
Tail
JA806X
Type
B738
No current signal · last broadcast 1h ago
Flights observed
256
Distinct callsigns
20
Country
JP
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 86CF2B.

Country allocation

The ICAO 24-bit address 86CF2B 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
SNJ23 Skynet Asia Airways 8 2026-05-27
SNJ129 Skynet Asia Airways 7 2026-05-19
SNJ65 Skynet Asia Airways 6 2026-05-26
SNJ25 Skynet Asia Airways 6 2026-05-18
SNJ125 Skynet Asia Airways 6 2026-05-20
SNJ101 Skynet Asia Airways 6 2026-05-20
SNJ92 Skynet Asia Airways 5 2026-05-25
SNJ91 Skynet Asia Airways 5 2026-05-25
SNJ56 Skynet Asia Airways 5 2026-05-27
SNJ36 Skynet Asia Airways 5 2026-05-22
SNJ33 Skynet Asia Airways 5 2026-05-24
SNJ16 Skynet Asia Airways 5 2026-05-26
SNJ130 Skynet Asia Airways 5 2026-05-19
SNJ13 Skynet Asia Airways 5 2026-05-26
SNJ128 Skynet Asia Airways 5 2026-05-19
SNJ102 Skynet Asia Airways 5 2026-05-20
SNJ96 Skynet Asia Airways 4 2026-05-18
SNJ95 Skynet Asia Airways 4 2026-05-18
SNJ94 Skynet Asia Airways 4 2026-05-18
SNJ93 Skynet Asia Airways 4 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SNJ31 HND → NGS May 29, 22:30 UTCMay 30, 00:05 UTC1h 35m
2026-05-29 SNJ64 KMI → HND May 29, 05:10 UTCMay 29, 10:55 UTC5h 45m
2026-05-29 SNJ126 OKA → UKB May 29, 03:50 UTCMay 29, 04:25 UTC35m
2026-05-28 SNJ51 HND → KMI May 28, 22:10 UTCMay 28, 23:10 UTC1h 0m
2026-05-28 SNJ20 KMJ → HND May 28, 10:20 UTCMay 28, 11:35 UTC1h 15m
2026-05-28 SNJ17 HND → KMJ May 28, 07:50 UTCMay 28, 09:15 UTC1h 25m
2026-05-28 SNJ60 KMI → HND May 28, 05:35 UTCMay 28, 06:55 UTC1h 20m
2026-05-28 SNJ57 HND → KMI May 28, 03:15 UTCMay 28, 04:15 UTC1h 0m
2026-05-28 SNJ32 NGS → HND May 28, 00:45 UTCMay 28, 02:05 UTC1h 20m
2026-05-27 SNJ31 HND → NGS May 27, 22:20 UTCMay 27, 23:45 UTC1h 25m
2026-05-27 SNJ23 HND → OKA May 27, 05:04 UTCMay 27, 14:05 UTC9h 1m
2026-05-27 SNJ56 KMI → HND May 27, 00:49 UTCMay 27, 03:39 UTC2h 50m
2026-05-26 SNJ108 KMI → NGO May 26, 23:05 UTCMay 26, 23:45 UTC40m
2026-05-26 SNJ65 HND → KMI May 26, 10:44 UTCMay 26, 11:30 UTC45m
2026-05-26 SNJ16 KMJ → HND May 26, 04:20 UTCMay 26, 05:30 UTC1h 10m
2026-05-26 SNJ13 HND → KMJ May 26, 02:00 UTCMay 26, 03:25 UTC1h 25m
2026-05-25 SNJ92 OIT → HND May 25, 23:45 UTCMay 26, 00:49 UTC1h 5m
2026-05-25 SNJ91 HND → OIT May 25, 21:40 UTCMay 25, 22:44 UTC1h 5m
2026-05-25 SNJ23 HND → OKA May 25, 05:15 UTCMay 25, 13:45 UTC8h 30m
2026-05-25 SNJ56 KMI → HND May 25, 03:05 UTCMay 25, 03:50 UTC45m
2026-05-24 SNJ108 KMI → NGO May 24, 23:15 UTCMay 24, 23:30 UTC15m
2026-05-24 SNJ65 HND → KMI May 24, 10:45 UTCMay 24, 11:25 UTC40m
2026-05-24 SNJ62 KMI → HND May 24, 08:25 UTCMay 24, 09:35 UTC1h 10m
2026-05-24 SNJ59T HND → KMI May 24, 05:45 UTCMay 24, 06:50 UTC1h 5m
2026-05-24 SNJ34 NGS → HND May 24, 03:20 UTCMay 24, 04:35 UTC1h 15m
2026-05-24 SNJ33 HND → NGS May 24, 00:55 UTCMay 24, 02:20 UTC1h 25m
2026-05-23 SNJ77 HND → KOJ May 23, 06:20 UTCMay 23, 23:35 UTC17h 15m
2026-05-23 SNJ55 HND → KMI May 23, 01:25 UTCMay 23, 05:05 UTC3h 39m
2026-05-22 SNJ12 KMJ → HND May 22, 22:55 UTCMay 23, 00:05 UTC1h 10m
2026-05-22 SNJ19 HND → KMJ May 22, 09:30 UTCMay 22, 10:45 UTC1h 15m
2026-05-22 SNJ36 NGS → HND May 22, 06:55 UTCMay 22, 08:20 UTC1h 25m
2026-05-22 SNJ35 HND → NGS May 22, 04:15 UTCMay 22, 05:35 UTC1h 20m
2026-05-22 SNJ74 KOJ → HND May 22, 01:35 UTCMay 22, 02:45 UTC1h 10m
2026-05-21 SNJ115 NGO → KOJ May 21, 23:30 UTCMay 22, 00:10 UTC40m
2026-05-21 SNJ79 HND → KOJ May 21, 09:35 UTCMay 21, 10:50 UTC1h 15m
2026-05-21 SNJ75 HND → KOJ May 21, 04:30 UTCMay 21, 08:10 UTC3h 40m
2026-05-21 SNJ22 OKA → HND May 21, 01:15 UTCMay 21, 03:15 UTC2h 0m
2026-05-20 SNJ21 HND → OKA May 20, 21:30 UTCMay 20, 23:45 UTC2h 15m
2026-05-20 SNJ80 KOJ → HND May 20, 12:10 UTCMay 20, 13:15 UTC1h 5m
2026-05-20 SNJ117 NGO → KOJ May 20, 09:35 UTCMay 20, 10:15 UTC40m
2026-05-20 SNJ122 OKA → NGO May 20, 08:15 UTCMay 20, 08:25 UTC10m
2026-05-20 SNJ122 OKA → NGO May 20, 06:55 UTCMay 20, 07:10 UTC15m
2026-05-20 SNJ101 FUK → OKA May 20, 05:15 UTCMay 20, 05:35 UTC20m
2026-05-20 SNJ101 FUK → OKA May 20, 04:15 UTCMay 20, 04:25 UTC10m
2026-05-20 SNJ102 OKA → FUK May 20, 02:45 UTCMay 20, 02:55 UTC10m
2026-05-20 SNJ102 OKA → FUK May 20, 01:45 UTCMay 20, 02:00 UTC15m
2026-05-20 SNJ125 UKB → OKA May 20, 00:20 UTCMay 20, 00:35 UTC15m
2026-05-19 SNJ125 UKB → OKA May 19, 23:00 UTCMay 19, 23:35 UTC35m
2026-05-19 SNJ130 OKA → UKB May 19, 12:35 UTCMay 19, 13:05 UTC30m
2026-05-19 SNJ130 OKA → UKB May 19, 11:30 UTCMay 19, 11:45 UTC15m

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 JA806X page for operator, model, and routing details .

Mode-S 86CF2B frequently asked

What is Mode-S code 86CF2B?
86CF2B is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA806X.
Where is Mode-S 86CF2B registered?
Mode-S code 86CF2B is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86CF2B broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86CF2B, octal 41547453, decimal 8,834,859.
What flights does 86CF2B operate?
Mode-S 86CF2B has broadcast 20 distinct callsigns, including SNJ23, SNJ129, SNJ65, SNJ25, SNJ125.