sensors Mode-S transponder

861BA8

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA607A · BOEING 767-300

Hex
861BA8
Octal
41415650
Decimal
8,788,904
Country
JP
Tail
JA607A
Type
B763
No current signal · last broadcast 4h ago
Flights observed
456
Distinct callsigns
20
Country
JP
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 861BA8.

Country allocation

The ICAO 24-bit address 861BA8 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
ADO38 - 22 2026-07-10
ADO24 - 22 2026-07-11
ADO11 - 22 2026-07-10
ADO60 - 21 2026-07-10
ADO35 - 21 2026-07-10
ADO32 - 21 2026-07-11
ADO29 - 21 2026-07-11
ADO21 - 21 2026-07-11
ADO20 - 21 2026-07-10
ADO14 - 21 2026-07-11
ADO59 - 20 2026-07-10
ADO19 - 18 2026-07-10
ADO12 - 18 2026-07-09
ADO39 - 17 2026-07-09
ADO36 - 14 2026-07-13
ADO31 - 14 2026-07-13
ADO26 - 14 2026-07-13
ADO23 - 14 2026-07-13
ADO16 - 14 2026-07-13
ADO15 - 14 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ADO88 AKJ → HND Jul 14, 11:15 UTCJul 14, 12:30 UTC1h 15m
2026-07-14 ADO87 - Jul 14, 09:00 UTCJul 14, 10:20 UTC1h 20m
2026-07-14 ADO84 - Jul 14, 05:50 UTCJul 14, 07:05 UTC1h 15m
2026-07-14 ADO83 - Jul 14, 03:40 UTCJul 14, 04:50 UTC1h 10m
2026-07-14 ADO82 - Jul 14, 00:30 UTCJul 14, 01:55 UTC1h 25m
2026-07-13 ADO81 - Jul 13, 22:25 UTCJul 13, 23:35 UTC1h 10m
2026-07-13 ADO36 - Jul 13, 12:35 UTCJul 13, 13:40 UTC1h 5m
2026-07-13 ADO31 - Jul 13, 10:15 UTCJul 13, 11:30 UTC1h 15m
2026-07-13 ADO26 - Jul 13, 07:15 UTCJul 13, 09:05 UTC1h 50m
2026-07-13 ADO23 - Jul 13, 04:35 UTCJul 13, 06:01 UTC1h 25m
2026-07-13 ADO16 - Jul 13, 02:20 UTCJul 13, 03:30 UTC1h 10m
2026-07-12 ADO15 HND → CTS Jul 12, 23:55 UTCJul 13, 01:05 UTC1h 10m
2026-07-12 ADO88 - Jul 12, 11:30 UTCJul 12, 12:45 UTC1h 15m
2026-07-12 ADO87 - Jul 12, 09:05 UTCJul 12, 10:30 UTC1h 25m
2026-07-12 ADO84 - Jul 12, 06:20 UTCJul 12, 07:40 UTC1h 20m
2026-07-12 ADO83 - Jul 12, 03:40 UTCJul 12, 04:50 UTC1h 10m
2026-07-12 ADO82 - Jul 12, 00:55 UTCJul 12, 02:15 UTC1h 20m
2026-07-11 ADO81 - Jul 11, 22:40 UTCJul 11, 23:55 UTC1h 15m
2026-07-11 ADO32 - Jul 11, 09:30 UTCJul 11, 10:40 UTC1h 10m
2026-07-11 ADO29 - Jul 11, 07:10 UTCJul 11, 08:25 UTC1h 15m
2026-07-11 ADO24 - Jul 11, 05:01 UTCJul 11, 06:10 UTC1h 10m
2026-07-11 ADO21 - Jul 11, 02:50 UTCJul 11, 04:01 UTC1h 10m
2026-07-11 ADO14 - Jul 11, 00:25 UTCJul 11, 01:40 UTC1h 15m
2026-07-10 ADO11 HND → CTS Jul 10, 22:20 UTCJul 10, 23:30 UTC1h 10m
2026-07-10 ADO38 - Jul 10, 12:30 UTCJul 10, 13:40 UTC1h 10m
2026-07-10 ADO35 - Jul 10, 10:20 UTCJul 10, 11:35 UTC1h 15m
2026-07-10 ADO60 - Jul 10, 08:10 UTCJul 10, 09:20 UTC1h 10m
2026-07-10 ADO59 HND → HKD Jul 10, 06:00 UTCJul 10, 07:00 UTC1h 0m
2026-07-10 ADO20 - Jul 10, 03:35 UTCJul 10, 04:55 UTC1h 20m
2026-07-10 ADO19 - Jul 10, 01:25 UTCJul 10, 02:35 UTC1h 10m
2026-07-09 ADO12 - Jul 9, 23:15 UTCJul 10, 00:25 UTC1h 10m
2026-07-09 ADO39 - Jul 9, 12:05 UTCJul 9, 13:20 UTC1h 15m
2026-07-09 ADO32 - Jul 9, 09:30 UTCJul 9, 10:40 UTC1h 10m
2026-07-09 ADO29 - Jul 9, 07:15 UTCJul 9, 08:25 UTC1h 10m
2026-07-09 ADO24 - Jul 9, 04:55 UTCJul 9, 06:10 UTC1h 15m
2026-07-09 ADO21 - Jul 9, 02:45 UTCJul 9, 04:05 UTC1h 20m
2026-07-09 ADO14 - Jul 9, 00:15 UTCJul 9, 01:30 UTC1h 15m
2026-07-08 ADO11 - Jul 8, 22:05 UTCJul 8, 23:20 UTC1h 15m
2026-07-08 ADO88 - Jul 8, 10:55 UTCJul 8, 12:15 UTC1h 20m
2026-07-08 ADO87 - Jul 8, 08:50 UTCJul 8, 10:00 UTC1h 10m
2026-07-08 ADO84 - Jul 8, 05:50 UTCJul 8, 07:05 UTC1h 15m
2026-07-08 ADO83 - Jul 8, 03:40 UTCJul 8, 04:55 UTC1h 15m
2026-07-08 ADO82 - Jul 8, 00:35 UTCJul 8, 01:55 UTC1h 20m
2026-07-07 ADO81 - Jul 7, 22:20 UTCJul 7, 23:35 UTC1h 15m
2026-07-07 ADO88 - Jul 7, 10:50 UTCJul 7, 12:05 UTC1h 15m
2026-07-07 ADO87 - Jul 7, 08:45 UTCJul 7, 09:55 UTC1h 10m
2026-07-07 ADO84 - Jul 7, 06:00 UTCJul 7, 07:20 UTC1h 20m
2026-07-07 ADO83 - Jul 7, 03:40 UTCJul 7, 04:50 UTC1h 10m
2026-07-07 ADO82 - Jul 7, 00:50 UTCJul 7, 02:05 UTC1h 15m
2026-07-06 ADO81 - Jul 6, 22:40 UTCJul 6, 23:55 UTC1h 15m

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 JA607A page for operator, model, and routing details .

Mode-S 861BA8 frequently asked

What is Mode-S code 861BA8?
861BA8 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA607A.
Where is Mode-S 861BA8 registered?
Mode-S code 861BA8 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861BA8 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861BA8, octal 41415650, decimal 8,788,904.
What flights does 861BA8 operate?
Mode-S 861BA8 has broadcast 20 distinct callsigns, including ADO38, ADO24, ADO11, ADO60, ADO35.