Apparatus

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sensors Mode-S transponder

8511EC

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA317J · BOEING 737-800

Hex
8511EC
Octal
41210754
Decimal
8,720,876
Country
JP
Tail
JA317J
Type
B738
Broadcasting now · callsign JAL25 · 38,100 ft
Flights observed
350
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 08:40 UTC

Current position

8511EC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8511EC 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
JAL809 - 29 2026-07-23
JAL802 Japan Airlines 22 2026-07-24
JAL3087 Japan Airlines 19 2026-07-24
JAL3084 Japan Airlines 19 2026-07-23
JAL201 Japan Airlines 19 2026-07-25
JAL8671 Japan Airlines 18 2026-07-26
JAL3083 Japan Airlines 18 2026-07-23
JAL3082 Japan Airlines 18 2026-07-22
JAL208 Japan Airlines 18 2026-07-24
JAL20 - 17 2026-07-06
JAL159 Japan Airlines 15 2026-07-25
JAL25 - 14 2026-07-05
JAL8670 Japan Airlines 13 2026-07-26
JAL153 Japan Airlines 13 2026-07-07
JAL89 - 11 2026-07-01
JAL152 Japan Airlines 10 2026-07-24
JAL158 Japan Airlines 9 2026-07-25
JAL841 - 6 2026-06-26
JAL840 Japan Airlines 4 2026-05-25
JAL698 Japan Airlines 4 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL8670 TPE → NGO Jul 26, 06:25 UTCJul 26, 08:40 UTC2h 16m
2026-07-26 JAL8671 NGO → TPE Jul 26, 02:05 UTCJul 26, 04:30 UTC2h 25m
2026-07-25 JAL201 HND → NGO Jul 25, 23:30 UTCJul 26, 00:00 UTC30m
2026-07-25 JAL158 MSJ → HND Jul 25, 10:50 UTCJul 25, 11:50 UTC1h 0m
2026-07-25 JAL159 HND → MSJ Jul 25, 08:50 UTCJul 25, 09:25 UTC35m
2026-07-24 JAL152 MSJ → HND Jul 24, 23:40 UTCJul 25, 02:25 UTC2h 45m
2026-07-24 JAL208 NGO → HND Jul 24, 12:50 UTCJul 24, 13:30 UTC40m
2026-07-24 JAL3087 NRT → NGO Jul 24, 10:30 UTCJul 24, 10:55 UTC25m
2026-07-24 JAL802 TPE → NRT Jul 24, 05:05 UTCJul 24, 06:35 UTC1h 30m
2026-07-24 JAL802 TPE → NRT Jul 24, 03:35 UTCJul 24, 03:45 UTC10m
2026-07-23 JAL809 - Jul 23, 12:20 UTCJul 23, 12:40 UTC20m
2026-07-23 JAL809 - Jul 23, 09:40 UTCJul 23, 11:00 UTC1h 20m
2026-07-23 JAL3084 NGO → NRT Jul 23, 06:15 UTCJul 23, 07:00 UTC45m
2026-07-23 JAL3083 NRT → NGO Jul 23, 01:50 UTCJul 23, 02:25 UTC35m
2026-07-22 JAL3082 NGO → NRT Jul 22, 23:35 UTCJul 23, 00:20 UTC45m
2026-07-22 JAL8671 NGO → TPE Jul 22, 04:25 UTCJul 22, 04:40 UTC15m
2026-07-22 JAL8671 NGO → TPE Jul 22, 02:25 UTCJul 22, 03:05 UTC40m
2026-07-22 JAL201 HND → NGO Jul 22, 00:00 UTCJul 22, 00:30 UTC30m
2026-07-20 JAL208 NGO → HND Jul 20, 12:30 UTCJul 20, 13:05 UTC35m
2026-07-20 JAL3087 NRT → NGO Jul 20, 10:20 UTCJul 20, 10:55 UTC35m
2026-07-20 JAL802 TPE → NRT Jul 20, 02:45 UTCJul 20, 05:40 UTC2h 55m
2026-07-19 JAL809 - Jul 19, 09:35 UTCJul 19, 12:35 UTC3h 0m
2026-07-19 JAL3084 - Jul 19, 06:00 UTCJul 19, 06:50 UTC50m
2026-07-19 JAL3083 - Jul 19, 02:30 UTCJul 19, 03:10 UTC40m
2026-07-19 JAL3082 - Jul 19, 00:10 UTCJul 19, 01:00 UTC50m
2026-07-18 JAL8670 - Jul 18, 06:55 UTCJul 18, 09:30 UTC2h 35m
2026-07-18 JAL8671 - Jul 18, 04:30 UTCJul 18, 04:45 UTC15m
2026-07-18 JAL8671 - Jul 18, 02:29 UTCJul 18, 03:20 UTC51m
2026-07-17 JAL201 HND → NGO Jul 17, 23:30 UTCJul 18, 00:04 UTC35m
2026-07-17 JAL208 NGO → HND Jul 17, 12:19 UTCJul 17, 12:50 UTC30m
2026-07-17 JAL3087 - Jul 17, 10:15 UTCJul 17, 10:55 UTC40m
2026-07-17 JAL3084 - Jul 17, 06:10 UTCJul 17, 06:54 UTC45m
2026-07-17 JAL3083 - Jul 17, 01:55 UTCJul 17, 02:39 UTC45m
2026-07-16 JAL3082 - Jul 16, 23:40 UTCJul 17, 00:25 UTC45m
2026-07-16 JAL8670 - Jul 16, 08:10 UTCJul 16, 08:45 UTC35m
2026-07-16 JAL8670 - Jul 16, 06:35 UTCJul 16, 06:45 UTC10m
2026-07-16 JAL8671 - Jul 16, 04:30 UTCJul 16, 04:45 UTC15m
2026-07-16 JAL8671 - Jul 16, 02:20 UTCJul 16, 03:10 UTC50m
2026-07-15 JAL201 - Jul 15, 23:50 UTCJul 16, 00:20 UTC30m
2026-07-15 JAL208 - Jul 15, 12:20 UTCJul 15, 12:55 UTC35m
2026-07-15 JAL3087 - Jul 15, 10:15 UTCJul 15, 10:50 UTC35m
2026-07-15 JAL802 - Jul 15, 05:05 UTCJul 15, 05:55 UTC50m
2026-07-15 JAL802 - Jul 15, 03:00 UTCJul 15, 03:10 UTC10m
2026-07-14 JAL809 - Jul 14, 12:00 UTCJul 14, 12:25 UTC25m
2026-07-14 JAL809 - Jul 14, 09:35 UTCJul 14, 10:50 UTC1h 15m
2026-07-14 JAL802 - Jul 14, 03:10 UTCJul 14, 06:25 UTC3h 15m
2026-07-13 JAL809 NRT → TPE Jul 13, 09:45 UTCJul 13, 12:40 UTC2h 55m
2026-07-13 JAL3084 - Jul 13, 05:55 UTCJul 13, 06:45 UTC50m
2026-07-13 JAL3083 - Jul 13, 01:50 UTCJul 13, 02:20 UTC30m
2026-07-12 JAL3082 - Jul 12, 23:35 UTCJul 13, 00:25 UTC50m

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 JA317J page for operator, model, and routing details .

Mode-S 8511EC frequently asked

What is Mode-S code 8511EC?
8511EC is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA317J.
Where is Mode-S 8511EC registered?
Mode-S code 8511EC is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8511EC broadcasting right now?
Yes. Mode-S 8511EC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8511EC, octal 41210754, decimal 8,720,876.
What flights does 8511EC operate?
Mode-S 8511EC has broadcast 20 distinct callsigns, including JAL809, JAL802, JAL3087, JAL3084, JAL201.