sensors Mode-S transponder

872720

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA900A · BOEING 787-10 Dreamliner

Hex
872720
Octal
41623440
Decimal
8,857,376
Country
JP
Tail
JA900A
Type
B78X
No current signal · last broadcast 14h ago
Flights observed
8
Distinct callsigns
3
Country
JP
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 872720.

Country allocation

The ICAO 24-bit address 872720 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 3 distinct

Callsign Airline Flights Last seen
ANA850 All Nippon Airways 3 2026-04-13
ANA847 All Nippon Airways 3 2026-04-13
ANA970 All Nippon Airways 2 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 ANA970 SHA → HND Apr 14, 07:10 UTCApr 14, 08:10 UTC1h 0m
2026-04-14 ANA970 SHA → HND Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-13 ANA850 BKK → HND Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 ANA850 BKK → HND Apr 13, 16:55 UTCApr 13, 20:10 UTC3h 15m
2026-04-13 ANA850 BKK → HND Apr 13, 15:00 UTCApr 13, 15:15 UTC15m
2026-04-13 ANA847 HND → BKK Apr 13, 08:20 UTCApr 13, 08:30 UTC10m
2026-04-13 ANA847 HND → BKK Apr 13, 04:25 UTCApr 13, 06:05 UTC1h 40m
2026-04-13 ANA847 HND → BKK Apr 13, 02:35 UTCApr 13, 03:05 UTC30m

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 JA900A page for operator, model, and routing details .

Mode-S 872720 frequently asked

What is Mode-S code 872720?
872720 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA900A.
Where is Mode-S 872720 registered?
Mode-S code 872720 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 872720 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 872720, octal 41623440, decimal 8,857,376.
What flights does 872720 operate?
Mode-S 872720 has broadcast 3 distinct callsigns, including ANA850, ANA847, ANA970.