sensors Mode-S transponder

86808A

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA73AC · BOEING 737-800

Hex
86808A
Octal
41500212
Decimal
8,814,730
Country
JP
Tail
JA73AC
Type
B738
No current signal · last broadcast 18h ago
Flights observed
13
Distinct callsigns
10
Country
JP
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 86808A.

Country allocation

The ICAO 24-bit address 86808A 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 10 distinct

Callsign Airline Flights Last seen
SKY177 - 3 2026-04-13
SKY592 - 2 2026-04-13
SKY720 Skymark Airlines 1 2026-04-14
SKY718 Skymark Airlines 1 2026-04-13
SKY717 - 1 2026-04-14
SKY511 - 1 2026-04-12
SKY147 - 1 2026-04-13
SKY140 - 1 2026-04-13
SKY113 - 1 2026-04-13
SKY025 - 1 2026-04-14

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 SKY025 - Apr 14, 10:00 UTCApr 14, 11:05 UTC1h 5m
2026-04-14 SKY720 CTS → HND Apr 14, 07:30 UTCApr 14, 08:50 UTC1h 20m
2026-04-14 SKY717 HND → CTS Apr 14, 05:20 UTCApr 14, 06:35 UTC1h 15m
2026-04-13 SKY140 - Apr 13, 22:55 UTCApr 13, 23:40 UTC45m
2026-04-13 SKY147 - Apr 13, 11:00 UTCApr 13, 11:45 UTC45m
2026-04-13 SKY113 - Apr 13, 09:10 UTCApr 13, 10:00 UTC50m
2026-04-13 SKY718 CTS → HND Apr 13, 06:30 UTCApr 13, 07:55 UTC1h 25m
2026-04-13 SKY177 - Apr 13, 04:20 UTCApr 13, 05:10 UTC50m
2026-04-13 SKY177 - Apr 13, 03:55 UTCApr 13, 05:10 UTC1h 15m
2026-04-13 SKY177 - Apr 13, 03:40 UTCApr 13, 04:15 UTC35m
2026-04-13 SKY592 - Apr 13, 02:25 UTCApr 13, 02:40 UTC15m
2026-04-13 SKY592 - Apr 13, 01:10 UTCApr 13, 01:25 UTC15m
2026-04-12 SKY511 - Apr 12, 23:55 UTCApr 13, 00:05 UTC10m

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 JA73AC page for operator, model, and routing details .

Mode-S 86808A frequently asked

What is Mode-S code 86808A?
86808A is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA73AC.
Where is Mode-S 86808A registered?
Mode-S code 86808A is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86808A broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86808A, octal 41500212, decimal 8,814,730.
What flights does 86808A operate?
Mode-S 86808A has broadcast 10 distinct callsigns, including SKY177, SKY592, SKY720, SKY718, SKY717.