Apparatus

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sensors Mode-S transponder

84B81C

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA217A · AIRBUS A-320neo

Hex
84B81C
Octal
41134034
Decimal
8,697,884
Country
JP
Tail
JA217A
Type
A20N
No current signal · last broadcast Jul 26, 11:25 UTC
Flights observed
199
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 11:25 UTC

Last known position

Most recent position reported by Mode-S 84B81C.

Country allocation

The ICAO 24-bit address 84B81C 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
ANA923 All Nippon Airways 91 2026-07-22
ANA924 - 76 2026-07-20
ANA722 All Nippon Airways 2 2026-07-23
ANA721 All Nippon Airways 2 2026-07-23
ANA720 All Nippon Airways 2 2026-07-23
ANA719 All Nippon Airways 2 2026-07-23
ANA322 All Nippon Airways 2 2026-07-26
ANA319 All Nippon Airways 2 2026-07-26
ANA990 All Nippon Airways 1 2026-07-25
ANA99 All Nippon Airways 1 2026-07-25
ANA724 All Nippon Airways 1 2026-07-25
ANA723 All Nippon Airways 1 2026-07-25
ANA656 All Nippon Airways 1 2026-07-26
ANA655 All Nippon Airways 1 2026-07-26
ANA618 All Nippon Airways 1 2026-06-04
ANA613 All Nippon Airways 1 2026-06-04
ANA574 All Nippon Airways 1 2026-07-24
ANA573 All Nippon Airways 1 2026-07-24
ANA569 - 1 2026-07-23
ANA562 All Nippon Airways 1 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANA322 TOY → HND Jul 26, 10:30 UTCJul 26, 11:20 UTC50m
2026-07-26 ANA319 HND → TOY Jul 26, 08:30 UTCJul 26, 08:50 UTC20m
2026-07-26 ANA656 OKJ → HND Jul 26, 06:25 UTCJul 26, 07:20 UTC56m
2026-07-26 ANA655 HND → OKJ Jul 26, 03:40 UTCJul 26, 04:30 UTC50m
2026-07-25 ANA990 KIX → HND Jul 25, 22:00 UTCJul 25, 22:50 UTC50m
2026-07-25 ANA99 HND → KIX Jul 25, 12:30 UTCJul 25, 13:35 UTC1h 5m
2026-07-25 ANA724 ONJ → HND Jul 25, 10:35 UTCJul 25, 11:15 UTC40m
2026-07-25 ANA723 HND → ONJ Jul 25, 08:20 UTCJul 25, 08:50 UTC30m
2026-07-24 ANA574 WKJ → HND Jul 24, 08:05 UTCJul 24, 10:05 UTC2h 0m
2026-07-24 ANA573 HND → WKJ Jul 24, 04:50 UTCJul 24, 06:15 UTC1h 25m
2026-07-24 ANA316 TOY → HND Jul 24, 02:55 UTCJul 24, 03:40 UTC45m
2026-07-24 ANA315 HND → TOY Jul 24, 01:15 UTCJul 24, 01:40 UTC25m
2026-07-23 ANA562 KCZ → HND Jul 23, 23:05 UTCJul 24, 00:05 UTC1h 0m
2026-07-23 ANA569 - Jul 23, 10:25 UTCJul 23, 11:10 UTC45m
2026-07-23 ANA722 ONJ → HND Jul 23, 06:15 UTCJul 23, 06:50 UTC35m
2026-07-23 ANA721 HND → ONJ Jul 23, 04:10 UTCJul 23, 04:40 UTC30m
2026-07-23 ANA720 ONJ → HND Jul 23, 02:15 UTCJul 23, 03:00 UTC45m
2026-07-23 ANA719 HND → ONJ Jul 23, 00:15 UTCJul 23, 00:45 UTC30m
2026-07-22 ANA923 HND → CAN Jul 22, 00:30 UTCJul 22, 11:35 UTC11h 5m
2026-07-20 ANA924 - Jul 20, 09:55 UTCJul 20, 11:35 UTC1h 40m
2026-07-20 ANA923 - Jul 20, 00:35 UTCJul 20, 02:05 UTC1h 30m
2026-07-19 ANA924 - Jul 19, 09:05 UTCJul 19, 10:50 UTC1h 45m
2026-07-19 ANA923 - Jul 19, 00:30 UTCJul 19, 02:00 UTC1h 30m
2026-07-18 ANA924 - Jul 18, 11:05 UTCJul 18, 12:45 UTC1h 40m
2026-07-18 ANA923 - Jul 18, 00:45 UTCJul 18, 02:19 UTC1h 35m
2026-07-17 ANA924 - Jul 17, 08:54 UTCJul 17, 10:44 UTC1h 50m
2026-07-17 ANA923 - Jul 17, 00:40 UTCJul 17, 02:05 UTC1h 25m
2026-07-16 ANA924 - Jul 16, 08:55 UTCJul 16, 10:45 UTC1h 50m
2026-07-16 ANA923 - Jul 16, 00:35 UTCJul 16, 02:10 UTC1h 35m
2026-07-15 ANA924 - Jul 15, 09:15 UTCJul 15, 10:55 UTC1h 40m
2026-07-15 ANA923 - Jul 15, 00:35 UTCJul 15, 02:05 UTC1h 30m
2026-07-14 ANA924 - Jul 14, 08:35 UTCJul 14, 10:15 UTC1h 40m
2026-07-14 ANA923 - Jul 14, 00:45 UTCJul 14, 02:15 UTC1h 30m
2026-07-13 ANA924 - Jul 13, 08:50 UTCJul 13, 10:25 UTC1h 35m
2026-07-13 ANA923 - Jul 13, 00:35 UTCJul 13, 02:05 UTC1h 30m
2026-07-12 ANA924 - Jul 12, 10:05 UTCJul 12, 10:45 UTC40m
2026-07-12 ANA924 - Jul 12, 06:40 UTCJul 12, 08:55 UTC2h 15m
2026-07-12 ANA923 - Jul 12, 03:50 UTCJul 12, 04:05 UTC15m
2026-07-12 ANA923 - Jul 12, 00:25 UTCJul 12, 03:20 UTC2h 55m
2026-07-11 ANA924 - Jul 11, 08:45 UTCJul 11, 10:25 UTC1h 40m
2026-07-11 ANA923 - Jul 11, 04:05 UTCJul 11, 04:15 UTC10m
2026-07-11 ANA923 - Jul 11, 00:35 UTCJul 11, 02:05 UTC1h 30m
2026-07-10 ANA924 - Jul 10, 08:50 UTCJul 10, 10:25 UTC1h 35m
2026-07-10 ANA923 - Jul 10, 04:20 UTCJul 10, 04:30 UTC10m
2026-07-10 ANA923 - Jul 10, 00:40 UTCJul 10, 02:10 UTC1h 30m
2026-07-06 ANA924 - Jul 6, 10:10 UTCJul 6, 11:45 UTC1h 35m
2026-07-06 ANA923 - Jul 6, 00:20 UTCJul 6, 02:00 UTC1h 40m
2026-07-05 ANA924 - Jul 5, 08:35 UTCJul 5, 10:20 UTC1h 45m
2026-07-05 ANA923 - Jul 5, 00:30 UTCJul 5, 02:05 UTC1h 35m
2026-07-04 ANA924 - Jul 4, 10:55 UTCJul 4, 12:30 UTC1h 35m

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 JA217A page for operator, model, and routing details .

Mode-S 84B81C frequently asked

What is Mode-S code 84B81C?
84B81C is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA217A.
Where is Mode-S 84B81C registered?
Mode-S code 84B81C is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84B81C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84B81C, octal 41134034, decimal 8,697,884.
What flights does 84B81C operate?
Mode-S 84B81C has broadcast 20 distinct callsigns, including ANA923, ANA924, ANA722, ANA721, ANA720.