Apparatus

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sensors Mode-S transponder

845F72

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA11JC · ATR-42-600

Hex
845F72
Octal
41057562
Decimal
8,675,186
Country
JP
Tail
JA11JC
Type
AT46
No current signal · last broadcast 9h ago
Flights observed
194
Distinct callsigns
20
Country
JP
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 845F72.

Country allocation

The ICAO 24-bit address 845F72 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
JL3554 - 14 2026-07-15
JL2325 Japan Airlines 14 2026-07-21
JL3555 - 13 2026-07-15
JL3673 - 12 2026-07-15
JL3550 - 12 2026-07-16
JL3653 - 11 2026-07-16
JL3551 - 11 2026-07-15
JL2450 Japan Airlines 11 2026-07-21
JL2324 - 10 2026-07-18
JL2323 Japan Airlines 10 2026-07-18
JL2451 - 9 2026-07-18
JL3715 Japan Airlines 8 2026-07-19
JL3686 Japan Airlines 8 2026-07-18
JL2326 Japan Airlines 8 2026-07-21
JL3867 - 7 2026-07-08
JL3716 - 7 2026-07-02
JL3866 - 6 2026-07-08
JL3676 - 4 2026-07-15
JL3687 - 3 2026-07-18
JL3654 - 3 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 JL2326 TJH → ITM Jul 21, 09:05 UTCJul 21, 09:30 UTC25m
2026-07-21 JL2325 ITM → TJH Jul 21, 08:10 UTCJul 21, 08:25 UTC15m
2026-07-21 JL2450 KUM → ITM Jul 21, 06:55 UTCJul 21, 07:15 UTC20m
2026-07-19 JL3715 OKA → OKE Jul 19, 05:55 UTCJul 19, 06:15 UTC20m
2026-07-19 JAL3716 OKE → OKA Jul 19, 04:05 UTCJul 19, 04:25 UTC20m
2026-07-18 JL3686 MYJ → KOJ Jul 18, 11:30 UTCJul 18, 12:00 UTC30m
2026-07-18 JL3687 - Jul 18, 10:15 UTCJul 18, 10:25 UTC10m
2026-07-18 JL2451 - Jul 18, 02:45 UTCJul 18, 03:25 UTC41m
2026-07-18 JL2324 - Jul 18, 01:25 UTCJul 18, 01:39 UTC15m
2026-07-18 JL2323 ITM → TJH Jul 18, 00:19 UTCJul 18, 00:35 UTC15m
2026-07-17 JL2326 TJH → ITM Jul 17, 09:10 UTCJul 17, 09:30 UTC20m
2026-07-17 JL2325 - Jul 17, 08:04 UTCJul 17, 08:20 UTC15m
2026-07-17 JL2450 - Jul 17, 07:00 UTCJul 17, 07:14 UTC15m
2026-07-16 JL3653 - Jul 16, 04:35 UTCJul 16, 04:55 UTC20m
2026-07-16 JL3550 - Jul 16, 02:30 UTCJul 16, 03:05 UTC35m
2026-07-15 JL3551 - Jul 15, 22:25 UTCJul 15, 23:10 UTC45m
2026-07-15 JL3554 - Jul 15, 10:40 UTCJul 15, 11:15 UTC35m
2026-07-15 JL3555 - Jul 15, 08:40 UTCJul 15, 09:15 UTC35m
2026-07-15 JL3676 - Jul 15, 07:10 UTCJul 15, 07:25 UTC15m
2026-07-15 JL3673 - Jul 15, 04:55 UTCJul 15, 05:15 UTC20m
2026-07-15 JL3654 - Jul 15, 03:30 UTCJul 15, 03:45 UTC15m
2026-07-14 JL3653 - Jul 14, 04:05 UTCJul 14, 04:25 UTC20m
2026-07-14 JL3550 - Jul 14, 02:15 UTCJul 14, 03:05 UTC50m
2026-07-13 JL3551 - Jul 13, 22:30 UTCJul 13, 23:10 UTC40m
2026-07-13 JL3554 - Jul 13, 11:05 UTCJul 13, 11:35 UTC30m
2026-07-13 JL3555 - Jul 13, 09:50 UTCJul 13, 10:15 UTC25m
2026-07-13 JL3676 - Jul 13, 08:25 UTCJul 13, 08:45 UTC20m
2026-07-13 JL3673 - Jul 13, 06:20 UTCJul 13, 06:45 UTC25m
2026-07-13 JL3654 - Jul 13, 04:45 UTCJul 13, 05:01 UTC15m
2026-07-12 JL3686 - Jul 12, 11:45 UTCJul 12, 12:15 UTC30m
2026-07-12 JL3687 - Jul 12, 10:30 UTCJul 12, 10:40 UTC10m
2026-07-12 JL2451 - Jul 12, 02:35 UTCJul 12, 03:05 UTC30m
2026-07-12 JL2324 - Jul 12, 01:05 UTCJul 12, 01:25 UTC20m
2026-07-12 JL2323 - Jul 12, 00:05 UTCJul 12, 00:20 UTC15m
2026-07-11 JL2326 - Jul 11, 09:15 UTCJul 11, 09:30 UTC15m
2026-07-11 JL2325 - Jul 11, 08:10 UTCJul 11, 08:25 UTC15m
2026-07-11 JL2450 - Jul 11, 07:05 UTCJul 11, 07:30 UTC25m
2026-07-10 JL3686 - Jul 10, 11:40 UTCJul 10, 12:10 UTC30m
2026-07-10 JL3687 - Jul 10, 10:20 UTCJul 10, 10:35 UTC15m
2026-07-10 JL2451 - Jul 10, 02:40 UTCJul 10, 03:05 UTC25m
2026-07-10 JL2324 - Jul 10, 01:15 UTCJul 10, 01:35 UTC20m
2026-07-10 JL2323 - Jul 10, 00:10 UTCJul 10, 00:25 UTC15m
2026-07-09 JAL2326 - Jul 9, 09:10 UTCJul 9, 09:30 UTC20m
2026-07-09 JL2325 - Jul 9, 08:10 UTCJul 9, 08:25 UTC15m
2026-07-09 JL2450 - Jul 9, 06:55 UTCJul 9, 07:10 UTC15m
2026-07-08 JL3867 - Jul 8, 05:10 UTCJul 8, 05:25 UTC15m
2026-07-08 JL3866 - Jul 8, 03:40 UTCJul 8, 03:55 UTC15m
2026-07-07 JL3867 - Jul 7, 05:15 UTCJul 7, 05:30 UTC15m
2026-07-07 JL3866 - Jul 7, 03:45 UTCJul 7, 04:00 UTC15m
2026-07-06 JL3686 - Jul 6, 11:45 UTCJul 6, 12:05 UTC20m

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 JA11JC page for operator, model, and routing details .

Mode-S 845F72 frequently asked

What is Mode-S code 845F72?
845F72 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA11JC.
Where is Mode-S 845F72 registered?
Mode-S code 845F72 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 845F72 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 845F72, octal 41057562, decimal 8,675,186.
What flights does 845F72 operate?
Mode-S 845F72 has broadcast 20 distinct callsigns, including JL3554, JL2325, JL3555, JL3673, JL3550.