Apparatus

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sensors Mode-S transponder

861B03

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA602F · BOEING 767-300

Hex
861B03
Octal
41415403
Decimal
8,788,739
Country
JP
Tail
JA602F
Type
B763
No current signal · last broadcast 2h ago
Flights observed
133
Distinct callsigns
20
Country
JP
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 861B03.

Country allocation

The ICAO 24-bit address 861B03 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
ANA8441 All Nippon Airways 19 2026-05-22
ANA8442 All Nippon Airways 13 2026-05-22
ANA8511 All Nippon Airways 10 2026-05-29
ANA8508 All Nippon Airways 8 2026-05-28
ANA8507 All Nippon Airways 7 2026-05-28
ANA8517 All Nippon Airways 6 2026-05-26
ANA8525 - 5 2026-05-18
ANA8515 - 5 2026-05-26
ANA8512 All Nippon Airways 5 2026-05-29
ANA8476 All Nippon Airways 5 2026-05-28
ANA8447 All Nippon Airways 5 2026-05-25
ANA8526 - 4 2026-05-18
ANA8516 - 4 2026-05-26
ANA8501 - 4 2026-05-01
ANA8475 All Nippon Airways 4 2026-05-28
ANA8448 All Nippon Airways 4 2026-05-23
ANA8528 All Nippon Airways 3 2026-05-21
ANA8502 - 3 2026-05-14
ANA8489 All Nippon Airways 3 2026-05-27
ANA8403 All Nippon Airways 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ANA8512 HKG → NRT May 29, 19:00 UTCMay 29, 22:50 UTC3h 50m
2026-05-29 ANA8511 NRT → HKG May 29, 16:20 UTCMay 29, 16:40 UTC20m
2026-05-29 ANA8511 NRT → HKG May 29, 12:25 UTCMay 29, 15:45 UTC3h 20m
2026-05-28 ANA8508 BKK → NRT May 28, 20:20 UTCMay 29, 02:05 UTC5h 45m
2026-05-28 ANA8507 NRT → BKK May 28, 12:05 UTCMay 28, 18:00 UTC5h 55m
2026-05-28 ANA8476 ICN → NRT May 28, 05:05 UTCMay 28, 07:00 UTC1h 55m
2026-05-28 ANA8475 NRT → ICN May 28, 01:00 UTCMay 28, 03:00 UTC2h 0m
2026-05-27 ANA8490 CAN → NRT May 27, 21:20 UTCMay 27, 22:45 UTC1h 25m
2026-05-27 ANA8489 NRT → CAN May 27, 12:30 UTCMay 27, 13:50 UTC1h 20m
2026-05-27 ANA8427 NRT → TAO May 27, 01:39 UTCMay 27, 09:10 UTC7h 30m
2026-05-26 ANA8517 NRT → PVG May 26, 14:20 UTCMay 26, 21:40 UTC7h 20m
2026-05-26 ANA8516 - May 26, 09:59 UTCMay 26, 11:15 UTC1h 15m
2026-05-26 ANA8515 - May 26, 02:10 UTCMay 26, 03:35 UTC1h 25m
2026-05-25 ANA8447 NRT → HAN May 25, 11:10 UTCMay 25, 23:14 UTC12h 4m
2026-05-24 ANA8403 NRT → PVG May 24, 14:40 UTCMay 24, 21:45 UTC7h 5m
2026-05-24 ANA8516 - May 24, 11:45 UTCMay 24, 12:55 UTC1h 10m
2026-05-24 ANA8515 - May 24, 02:55 UTCMay 24, 04:20 UTC1h 25m
2026-05-23 ANA8448 HAN → NRT May 23, 11:35 UTCMay 23, 23:35 UTC12h 0m
2026-05-22 ANA8508 BKK → NRT May 22, 20:40 UTCMay 23, 02:25 UTC5h 45m
2026-05-22 ANA8507 NRT → BKK May 22, 12:15 UTCMay 22, 18:10 UTC5h 55m
2026-05-22 ANA8442 TPE → NRT May 22, 07:00 UTCMay 22, 10:00 UTC3h 0m
2026-05-22 ANA8441 NRT → TPE May 22, 04:25 UTCMay 22, 04:50 UTC25m
2026-05-22 ANA8441 NRT → TPE May 22, 01:35 UTCMay 22, 02:50 UTC1h 15m
2026-05-21 ANA8528 PEK → NRT May 21, 21:00 UTCMay 21, 23:10 UTC2h 10m
2026-05-21 ANA8527 NRT → PEK May 21, 14:25 UTCMay 21, 16:30 UTC2h 5m
2026-05-21 ANA8515 - May 21, 02:40 UTCMay 21, 11:40 UTC9h 0m
2026-05-20 ANA8447 NRT → HAN May 20, 11:15 UTCMay 20, 23:10 UTC11h 55m
2026-05-20 ANA8442 TPE → NRT May 20, 06:00 UTCMay 20, 08:50 UTC2h 50m
2026-05-20 ANA8441 NRT → TPE May 20, 03:35 UTCMay 20, 03:55 UTC20m
2026-05-20 ANA8441 NRT → TPE May 20, 00:55 UTCMay 20, 02:05 UTC1h 10m
2026-05-19 ANA842A - May 19, 13:05 UTCMay 19, 21:10 UTC8h 5m
2026-05-19 ANA9034 HND → NRT May 19, 05:00 UTCMay 19, 06:15 UTC1h 15m
2026-05-19 ANA2013 HND → KOJ May 19, 02:00 UTCMay 19, 03:15 UTC1h 15m
2026-05-18 ANA9033 - May 18, 23:05 UTCMay 18, 23:25 UTC20m
2026-05-18 ANA8526 - May 18, 19:50 UTCMay 18, 21:10 UTC1h 20m
2026-05-18 ANA8525 - May 18, 12:05 UTCMay 18, 13:25 UTC1h 20m
2026-05-17 ANA8528 PEK → NRT May 17, 20:40 UTCMay 17, 22:45 UTC2h 5m
2026-05-17 - - May 17, 19:45 UTCMay 17, 19:55 UTC10m
2026-05-17 ANA8527 NRT → PEK May 17, 14:15 UTCMay 17, 16:15 UTC2h 0m
2026-05-17 ANA8442 TPE → NRT May 17, 07:45 UTCMay 17, 09:05 UTC1h 20m
2026-05-17 ANA8442 TPE → NRT May 17, 06:05 UTCMay 17, 06:20 UTC15m
2026-05-17 ANA8441 NRT → TPE May 17, 03:45 UTCMay 17, 04:15 UTC30m
2026-05-17 ANA8441 NRT → TPE May 17, 01:10 UTCMay 17, 02:15 UTC1h 5m
2026-05-16 ANA8525 NRT → NRT May 16, 12:11 UTCMay 16, 21:05 UTC8h 55m
2026-05-16 ANA8442 TPE → NRT May 16, 06:31 UTCMay 16, 09:35 UTC3h 5m
2026-05-16 ANA8441 NRT → TPE May 16, 03:55 UTCMay 16, 04:20 UTC25m
2026-05-16 ANA8441 NRT → TPE May 16, 01:25 UTCMay 16, 02:30 UTC1h 5m
2026-05-15 ANA8512 HKG → NRT May 15, 18:50 UTCMay 15, 22:45 UTC3h 55m
2026-05-15 ANA8511 NRT → HKG May 15, 16:10 UTCMay 15, 16:25 UTC15m
2026-05-15 ANA8511 NRT → HKG May 15, 12:30 UTCMay 15, 15:30 UTC2h 59m

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 JA602F page for operator, model, and routing details .

Mode-S 861B03 frequently asked

What is Mode-S code 861B03?
861B03 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA602F.
Where is Mode-S 861B03 registered?
Mode-S code 861B03 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861B03 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861B03, octal 41415403, decimal 8,788,739.
What flights does 861B03 operate?
Mode-S 861B03 has broadcast 20 distinct callsigns, including ANA8441, ANA8442, ANA8511, ANA8508, ANA8507.