sensors Mode-S transponder

845F5A

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA11HC · ATR-42-600

Hex
845F5A
Octal
41057532
Decimal
8,675,162
Country
JP
Tail
JA11HC
Type
AT46
No current signal · last broadcast 19h ago
Flights observed
15
Distinct callsigns
13
Country
JP
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 845F5A.

Country allocation

The ICAO 24-bit address 845F5A 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 13 distinct

Callsign Airline Flights Last seen
JAL2824 - 2 2026-04-13
JAL2752 - 2 2026-04-14
JAL3448 - 1 2026-04-14
JAL3447 - 1 2026-04-14
JAL2823 - 1 2026-04-13
JAL2768 - 1 2026-04-13
JAL2767 - 1 2026-04-13
JAL2766 - 1 2026-04-13
JAL2765 - 1 2026-04-13
JAL2759 - 1 2026-04-13
JAL2751 - 1 2026-04-14
JAL2744 - 1 2026-04-13
JAL2740 Japan Airlines 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 JAL3448 - Apr 14, 09:10 UTCApr 14, 09:40 UTC30m
2026-04-14 JAL3447 - Apr 14, 08:05 UTCApr 14, 08:25 UTC20m
2026-04-14 JAL2752 - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 JAL2752 - Apr 14, 06:55 UTCApr 14, 07:10 UTC15m
2026-04-14 JAL2751 - Apr 14, 05:45 UTCApr 14, 06:05 UTC20m
2026-04-13 JAL2740 HKD → OKD Apr 13, 22:50 UTCApr 13, 23:15 UTC25m
2026-04-13 JAL2759 - Apr 13, 10:20 UTCApr 13, 10:55 UTC35m
2026-04-13 JAL2768 - Apr 13, 09:10 UTCApr 13, 09:35 UTC25m
2026-04-13 JAL2767 - Apr 13, 07:45 UTCApr 13, 07:55 UTC10m
2026-04-13 JAL2766 - Apr 13, 06:35 UTCApr 13, 07:00 UTC25m
2026-04-13 JAL2765 - Apr 13, 05:15 UTCApr 13, 05:25 UTC10m
2026-04-13 JAL2824 - Apr 13, 03:55 UTCApr 13, 04:20 UTC25m
2026-04-13 JAL2824 - Apr 13, 03:40 UTCApr 13, 04:15 UTC35m
2026-04-13 JAL2823 - Apr 13, 01:55 UTCApr 13, 02:35 UTC40m
2026-04-13 JAL2744 - Apr 13, 00:40 UTCApr 13, 01:05 UTC25m

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 JA11HC page for operator, model, and routing details .

Mode-S 845F5A frequently asked

What is Mode-S code 845F5A?
845F5A is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA11HC.
Where is Mode-S 845F5A registered?
Mode-S code 845F5A is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 845F5A broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 845F5A, octal 41057532, decimal 8,675,162.
What flights does 845F5A operate?
Mode-S 845F5A has broadcast 13 distinct callsigns, including JAL2824, JAL2752, JAL3448, JAL3447, JAL2823.