Apparatus

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sensors Mode-S transponder

84657C

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA137A · AIRBUS A-321neo

Hex
84657C
Octal
41062574
Decimal
8,676,732
Country
JP
Tail
JA137A
Type
A21N
No current signal · last broadcast Jul 26, 12:55 UTC
Flights observed
565
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 12:55 UTC

Last known position

Most recent position reported by Mode-S 84657C.

Country allocation

The ICAO 24-bit address 84657C 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
ANA1621 - 10 2026-07-05
ANA1861 All Nippon Airways 8 2026-07-20
ANA577 - 7 2026-06-19
ANA538 - 7 2026-07-05
ANA533 - 7 2026-07-05
ANA429 - 7 2026-07-22
ANA420 All Nippon Airways 7 2026-07-22
ANA388 All Nippon Airways 7 2026-07-24
ANA385 All Nippon Airways 7 2026-07-24
ANA26 - 7 2026-06-24
ANA18 All Nippon Airways 7 2026-07-23
ANA1174 All Nippon Airways 7 2026-06-20
ANA696 - 6 2026-07-12
ANA693 - 6 2026-07-12
ANA659 - 6 2026-07-24
ANA652 All Nippon Airways 6 2026-07-24
ANA649 - 6 2026-07-03
ANA644 All Nippon Airways 6 2026-07-26
ANA642 - 6 2026-07-03
ANA641 All Nippon Airways 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANA699 HND → UBJ Jul 26, 11:55 UTCJul 26, 12:55 UTC1h 0m
2026-07-26 ANA574 WKJ → HND Jul 26, 08:40 UTCJul 26, 10:15 UTC1h 35m
2026-07-26 ANA573 HND → WKJ Jul 26, 05:45 UTCJul 26, 07:05 UTC1h 21m
2026-07-26 ANA644 KMJ → HND Jul 26, 02:05 UTCJul 26, 03:35 UTC1h 30m
2026-07-25 ANA641 HND → KMJ Jul 25, 23:40 UTCJul 26, 01:00 UTC1h 20m
2026-07-25 ANA540 TAK → HND Jul 25, 11:25 UTCJul 25, 12:25 UTC1h 0m
2026-07-25 ANA537 HND → TAK Jul 25, 09:10 UTCJul 25, 10:05 UTC55m
2026-07-25 ANA298 TTJ → HND Jul 25, 06:35 UTCJul 25, 07:40 UTC1h 5m
2026-07-25 ANA295 HND → TTJ Jul 25, 04:45 UTCJul 25, 05:25 UTC40m
2026-07-25 ANA296 TTJ → HND Jul 25, 02:35 UTCJul 25, 03:30 UTC55m
2026-07-25 ANA293 HND → TTJ Jul 25, 00:45 UTCJul 25, 01:25 UTC40m
2026-07-24 ANA652 OKJ → HND Jul 24, 22:20 UTCJul 24, 23:15 UTC55m
2026-07-24 ANA659 - Jul 24, 12:20 UTCJul 24, 13:10 UTC50m
2026-07-24 ANA388 YGJ → HND Jul 24, 09:50 UTCJul 24, 11:05 UTC1h 15m
2026-07-24 ANA385 HND → YGJ Jul 24, 07:00 UTCJul 24, 07:50 UTC50m
2026-07-24 ANA566 KCZ → HND Jul 24, 04:55 UTCJul 24, 05:45 UTC50m
2026-07-24 ANA563 HND → KCZ Jul 24, 02:45 UTCJul 24, 03:25 UTC40m
2026-07-24 ANA634 IWK → HND Jul 24, 00:05 UTCJul 24, 01:15 UTC1h 10m
2026-07-23 ANA631 HND → IWK Jul 23, 21:55 UTCJul 23, 22:55 UTC1h 0m
2026-07-23 ANA618 KMI → HND Jul 23, 11:30 UTCJul 23, 12:45 UTC1h 15m
2026-07-23 ANA613 HND → KMI Jul 23, 08:55 UTCJul 23, 09:55 UTC1h 0m
2026-07-23 ANA572 WKJ → HND Jul 23, 05:00 UTCJul 23, 06:20 UTC1h 20m
2026-07-23 ANA571 HND → WKJ Jul 23, 02:20 UTCJul 23, 03:45 UTC1h 25m
2026-07-23 ANA18 ITM → HND Jul 23, 00:20 UTCJul 23, 01:05 UTC45m
2026-07-22 ANA420 FUK → ITM Jul 22, 22:30 UTCJul 22, 23:20 UTC50m
2026-07-22 ANA429 - Jul 22, 11:45 UTCJul 22, 12:20 UTC35m
2026-07-22 ANA1279 FUK → CTS Jul 22, 01:40 UTCJul 22, 03:40 UTC2h 0m
2026-07-21 ANA421 ITM → FUK Jul 21, 23:20 UTCJul 21, 23:55 UTC35m
2026-07-21 ANA985 - Jul 21, 21:40 UTCJul 21, 22:20 UTC40m
2026-07-21 ANA684 - Jul 21, 10:10 UTCJul 21, 11:15 UTC1h 5m
2026-07-21 ANA1862 OKA → HIJ Jul 21, 07:40 UTCJul 21, 09:00 UTC1h 20m
2026-07-21 ANA1863 SDJ → OKA Jul 21, 03:30 UTCJul 21, 05:45 UTC2h 15m
2026-07-21 ANA733 - Jul 21, 01:20 UTCJul 21, 02:05 UTC45m
2026-07-20 ANA732 SDJ → ITM Jul 20, 23:15 UTCJul 21, 00:20 UTC1h 4m
2026-07-20 ANA739 - Jul 20, 10:55 UTCJul 20, 11:40 UTC45m
2026-07-20 ANA738 - Jul 20, 08:45 UTCJul 20, 09:40 UTC55m
2026-07-20 ANA1864 - Jul 20, 05:25 UTCJul 20, 07:30 UTC2h 5m
2026-07-20 ANA1861 HIJ → OKA Jul 20, 03:50 UTCJul 20, 04:05 UTC15m
2026-07-20 ANA1861 HIJ → OKA Jul 20, 02:40 UTCJul 20, 03:05 UTC25m
2026-07-20 ANA675 HND → HIJ Jul 20, 00:45 UTCJul 20, 01:50 UTC1h 5m
2026-07-19 ANA382 - Jul 19, 22:45 UTCJul 19, 23:50 UTC1h 5m
2026-07-19 ANA389 - Jul 19, 11:20 UTCJul 19, 12:10 UTC50m
2026-07-19 ANA682 - Jul 19, 08:30 UTCJul 19, 09:55 UTC1h 25m
2026-07-19 ANA681 HND → HIJ Jul 19, 06:25 UTCJul 19, 07:20 UTC55m
2026-07-19 ANA646 KMJ → HND Jul 19, 03:55 UTCJul 19, 05:20 UTC1h 25m
2026-07-19 ANA643 - Jul 19, 01:25 UTCJul 19, 02:45 UTC1h 20m
2026-07-18 ANA692 UBJ → HND Jul 18, 22:55 UTCJul 19, 00:10 UTC1h 15m
2026-07-18 ANA699 - Jul 18, 10:30 UTCJul 18, 11:35 UTC1h 5m
2026-07-18 ANA574 - Jul 18, 07:30 UTCJul 18, 09:05 UTC1h 35m
2026-07-18 ANA573 - Jul 18, 05:05 UTCJul 18, 06:20 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 JA137A page for operator, model, and routing details .

Mode-S 84657C frequently asked

What is Mode-S code 84657C?
84657C is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA137A.
Where is Mode-S 84657C registered?
Mode-S code 84657C is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84657C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84657C, octal 41062574, decimal 8,676,732.
What flights does 84657C operate?
Mode-S 84657C has broadcast 20 distinct callsigns, including ANA1621, ANA1861, ANA577, ANA538, ANA533.