Apparatus

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sensors Mode-S transponder

850E7A

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA308J · BOEING 737-800

Hex
850E7A
Octal
41207172
Decimal
8,719,994
Country
JP
Tail
JA308J
Type
B738
No current signal · last broadcast Jul 26, 14:05 UTC
Flights observed
558
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 14:05 UTC

Last known position

Most recent position reported by Mode-S 850E7A.

Country allocation

The ICAO 24-bit address 850E7A 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
JAL923 - 13 2026-06-29
JAL460 - 10 2026-06-29
JAL459 - 10 2026-06-29
JAL2501 Japan Airlines 9 2026-07-23
JAL221 Japan Airlines 9 2026-07-22
JAL2505 Japan Airlines 8 2026-07-23
JAL2504 Japan Airlines 8 2026-07-23
JAL2465 Japan Airlines 8 2026-07-25
JAL922 Japan Airlines 7 2026-05-14
JAL3114 - 7 2026-06-23
JAL3107 - 7 2026-06-23
JAL3006 - 7 2026-06-22
JAL202 - 7 2026-06-23
JAL2016 - 7 2026-06-21
JAL2001 Japan Airlines 7 2026-06-22
JAL665 Japan Airlines 6 2026-07-22
JAL610 - 6 2026-07-18
JAL607 - 6 2026-07-18
JAL3118 - 6 2026-06-23
JAL3117 - 6 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL651 HND → KOJ Jul 26, 07:55 UTCJul 26, 14:05 UTC6h 10m
2026-07-26 JAL118 ITM → HND Jul 26, 05:30 UTCJul 26, 06:20 UTC50m
2026-07-26 JAL3912 CTS → ITM Jul 26, 01:30 UTCJul 26, 03:05 UTC1h 35m
2026-07-25 JAL3911 ITM → CTS Jul 25, 22:40 UTCJul 26, 00:15 UTC1h 35m
2026-07-25 JAL2092 OKA → ITM Jul 25, 10:45 UTCJul 25, 11:20 UTC35m
2026-07-25 JAL2092 OKA → ITM Jul 25, 09:25 UTCJul 25, 09:45 UTC20m
2026-07-25 JAL2089 ITM → OKA Jul 25, 08:00 UTCJul 25, 08:10 UTC10m
2026-07-25 JAL2089 ITM → OKA Jul 25, 06:35 UTCJul 25, 07:10 UTC35m
2026-07-25 JAL2465 ITM → ASJ Jul 25, 01:40 UTCJul 25, 05:15 UTC3h 35m
2026-07-24 JAL3910 CTS → ITM Jul 24, 23:10 UTCJul 25, 00:45 UTC1h 35m
2026-07-24 JAL3919 ITM → CTS Jul 24, 10:35 UTCJul 24, 12:10 UTC1h 35m
2026-07-24 JAL2086 OKA → ITM Jul 24, 07:55 UTCJul 24, 09:40 UTC1h 45m
2026-07-24 JAL2085 ITM → OKA Jul 24, 06:25 UTCJul 24, 06:40 UTC15m
2026-07-24 JAL2085 ITM → OKA Jul 24, 05:00 UTCJul 24, 05:35 UTC35m
2026-07-24 JAL115 HND → ITM Jul 24, 03:10 UTCJul 24, 03:55 UTC45m
2026-07-24 JAL432 MYJ → HND Jul 24, 00:25 UTCJul 24, 01:40 UTC1h 15m
2026-07-23 JAL431 HND → MYJ Jul 23, 22:10 UTCJul 23, 23:05 UTC55m
2026-07-23 JAL228 KIX → HND Jul 23, 12:20 UTCJul 23, 13:10 UTC50m
2026-07-23 JAL2506 CTS → KIX Jul 23, 09:15 UTCJul 23, 11:05 UTC1h 50m
2026-07-23 JAL2505 KIX → CTS Jul 23, 06:25 UTCJul 23, 08:00 UTC1h 35m
2026-07-23 JAL2504 CTS → KIX Jul 23, 03:05 UTCJul 23, 04:50 UTC1h 45m
2026-07-23 JAL2501 KIX → CTS Jul 23, 00:35 UTCJul 23, 02:05 UTC1h 30m
2026-07-22 JAL221 HND → KIX Jul 22, 22:40 UTCJul 22, 23:35 UTC55m
2026-07-22 JAL498 - Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-22 JAL665 HND → OIT Jul 22, 03:30 UTCJul 22, 04:30 UTC1h 0m
2026-07-22 JAL562 MMB → HND Jul 22, 00:40 UTCJul 22, 02:10 UTC1h 30m
2026-07-21 JAL565 HND → MMB Jul 21, 22:20 UTCJul 21, 23:45 UTC1h 25m
2026-07-21 JAL486 - Jul 21, 11:45 UTCJul 21, 12:45 UTC1h 0m
2026-07-21 JAL485 HND → TAK Jul 21, 10:00 UTCJul 21, 10:50 UTC50m
2026-07-21 JAL612 NGS → HND Jul 21, 06:50 UTCJul 21, 08:25 UTC1h 35m
2026-07-21 JAL609 HND → NGS Jul 21, 04:30 UTCJul 21, 05:55 UTC1h 25m
2026-07-19 JAL242 OKJ → HND Jul 19, 10:30 UTCJul 19, 11:30 UTC1h 0m
2026-07-19 JAL239 - Jul 19, 08:55 UTCJul 19, 09:45 UTC50m
2026-07-19 JAL648 - Jul 19, 06:40 UTCJul 19, 07:40 UTC1h 0m
2026-07-19 JAL647 - Jul 19, 03:35 UTCJul 19, 04:40 UTC1h 5m
2026-07-19 JAL476 - Jul 19, 00:55 UTCJul 19, 02:00 UTC1h 5m
2026-07-18 JAL475 HND → TAK Jul 18, 23:05 UTCJul 19, 00:00 UTC55m
2026-07-18 JAL158 HND → HND Jul 18, 08:50 UTCJul 18, 11:40 UTC2h 50m
2026-07-18 JAL610 - Jul 18, 03:45 UTCJul 18, 05:15 UTC1h 30m
2026-07-18 JAL607 - Jul 18, 01:25 UTCJul 18, 02:45 UTC1h 20m
2026-07-17 JAL590 - Jul 17, 22:49 UTCJul 18, 00:04 UTC1h 15m
2026-07-17 JAL599 - Jul 17, 11:50 UTCJul 17, 13:10 UTC1h 20m
2026-07-17 JAL264 - Jul 17, 09:20 UTCJul 17, 10:35 UTC1h 15m
2026-07-17 JAL3406 - Jul 17, 06:29 UTCJul 17, 08:15 UTC1h 45m
2026-07-17 JAL3513 - Jul 17, 02:59 UTCJul 17, 04:59 UTC2h 0m
2026-07-17 JAL309 - Jul 17, 00:14 UTCJul 17, 01:20 UTC1h 5m
2026-07-16 JAL452 - Jul 16, 22:15 UTCJul 16, 23:10 UTC55m
2026-07-16 JAL465 - Jul 16, 11:10 UTCJul 16, 11:54 UTC45m
2026-07-16 JAL520 - Jul 16, 08:45 UTCJul 16, 09:55 UTC1h 10m
2026-07-16 JAL3515 - Jul 16, 05:30 UTCJul 16, 07:30 UTC2h 0m

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 JA308J page for operator, model, and routing details .

Mode-S 850E7A frequently asked

What is Mode-S code 850E7A?
850E7A is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA308J.
Where is Mode-S 850E7A registered?
Mode-S code 850E7A is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 850E7A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 850E7A, octal 41207172, decimal 8,719,994.
What flights does 850E7A operate?
Mode-S 850E7A has broadcast 20 distinct callsigns, including JAL923, JAL460, JAL459, JAL2501, JAL221.