sensors Mode-S transponder

8518AE

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA334J · BOEING 737-800

Hex
8518AE
Octal
41214256
Decimal
8,722,606
Country
JP
Tail
JA334J
Type
B738
No current signal · last broadcast 18h ago
Flights observed
11
Distinct callsigns
9
Country
JP
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 8518AE.

Country allocation

The ICAO 24-bit address 8518AE 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 9 distinct

Callsign Airline Flights Last seen
JAL648 - 2 2026-04-13
JAL544 - 2 2026-04-13
JAL698 Japan Airlines 1 2026-04-14
JAL695 Japan Airlines 1 2026-04-14
JAL647 - 1 2026-04-13
JAL630 Japan Airlines 1 2026-04-14
JAL545 - 1 2026-04-13
JAL492 - 1 2026-04-13
JAL213 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 JAL698 KMI → HND Apr 14, 10:50 UTCApr 14, 11:05 UTC15m
2026-04-14 JAL695 HND → KMI Apr 14, 07:40 UTCApr 14, 08:25 UTC45m
2026-04-14 JAL630 KMJ → HND Apr 14, 05:30 UTCApr 14, 06:25 UTC55m
2026-04-13 JAL213 - Apr 13, 23:10 UTCApr 13, 23:40 UTC30m
2026-04-13 JAL544 - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-13 JAL544 - Apr 13, 11:55 UTCApr 13, 12:40 UTC45m
2026-04-13 JAL545 - Apr 13, 09:10 UTCApr 13, 12:15 UTC3h 5m
2026-04-13 JAL648 - Apr 13, 06:45 UTCApr 13, 07:40 UTC55m
2026-04-13 JAL648 - Apr 13, 03:55 UTCApr 13, 07:40 UTC3h 45m
2026-04-13 JAL647 - Apr 13, 03:25 UTCApr 13, 04:00 UTC35m
2026-04-13 JAL492 - Apr 13, 01:20 UTCApr 13, 02:00 UTC40m

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 JA334J page for operator, model, and routing details .

Mode-S 8518AE frequently asked

What is Mode-S code 8518AE?
8518AE is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA334J.
Where is Mode-S 8518AE registered?
Mode-S code 8518AE is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8518AE 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 8518AE, octal 41214256, decimal 8,722,606.
What flights does 8518AE operate?
Mode-S 8518AE has broadcast 9 distinct callsigns, including JAL648, JAL544, JAL698, JAL695, JAL647.