sensors Mode-S transponder

845B9C

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA10FJ · EMBRAER ERJ-170-200 (long wing)

Hex
845B9C
Octal
41055634
Decimal
8,674,204
Country
JP
Tail
JA10FJ
Type
E75L
Broadcasting now · callsign FDA233 · 22,000 ft
Flights observed
278
Distinct callsigns
20
Country
JP
Last broadcast
14h ago

Current position

845B9C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 845B9C 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 FDA518 CTS → FUK May 29, 09:15 UTCMay 29, 11:20 UTC2h 5m
2026-05-29 FDA615 CTS → KIJ May 29, 05:15 UTCMay 29, 08:10 UTC2h 55m
2026-05-29 FDA211 MMJ → CTS May 29, 02:45 UTCMay 29, 03:55 UTC1h 10m
2026-05-29 FDA224 OKD → MMJ May 29, 00:35 UTCMay 29, 02:00 UTC1h 25m
2026-05-28 FDA391 NKM → OKD May 28, 22:30 UTCMay 28, 23:50 UTC1h 20m
2026-05-28 FDA398 OKD → NKM May 28, 10:05 UTCMay 28, 11:40 UTC1h 35m
2026-05-28 FDA397 NKM → OKD May 28, 07:55 UTCMay 28, 09:20 UTC1h 25m
2026-05-28 FDA310 FUK → NKM May 28, 06:15 UTCMay 28, 07:10 UTC55m
2026-05-28 FDA504 KIJ → FUK May 28, 03:40 UTCMay 28, 04:45 UTC1h 5m
2026-05-28 FDA613 CTS → KIJ May 28, 01:50 UTCMay 28, 02:25 UTC35m
2026-05-27 FDA511 FUK → CTS May 27, 23:05 UTCMay 28, 01:00 UTC1h 55m
2026-05-27 FDA536 SDJ → FUK May 27, 09:05 UTCMay 27, 10:25 UTC1h 20m
2026-05-27 FDA535 FUK → SDJ May 27, 06:44 UTCMay 27, 08:05 UTC1h 21m
2026-05-27 FDA205 MMJ → FUK May 27, 04:19 UTCMay 27, 05:24 UTC1h 5m
2026-05-27 FDA234 UKB → MMJ May 27, 02:44 UTCMay 27, 03:29 UTC45m
2026-05-27 FDA233 MMJ → UKB May 27, 01:09 UTCMay 27, 01:54 UTC45m
2026-05-26 FDA518 CTS → FUK May 26, 09:15 UTCMay 26, 11:09 UTC1h 55m
2026-05-26 FDA616 KIJ → CTS May 26, 07:40 UTCMay 26, 08:34 UTC55m
2026-05-26 FDA615 CTS → KIJ May 26, 05:10 UTCMay 26, 05:40 UTC30m
2026-05-26 FDA211 MMJ → CTS May 26, 02:44 UTCMay 26, 04:10 UTC1h 25m
2026-05-26 FDA224 OKD → MMJ May 26, 00:39 UTCMay 26, 02:00 UTC1h 20m
2026-05-25 FDA391 NKM → OKD May 25, 22:30 UTCMay 25, 23:54 UTC1h 25m
2026-05-25 FDA376 KIJ → NKM May 25, 10:00 UTCMay 25, 10:30 UTC30m
2026-05-25 FDA505 FUK → KIJ May 25, 08:00 UTCMay 25, 09:00 UTC1h 0m
2026-05-25 FDA524 HNA → FUK May 25, 05:10 UTCMay 25, 06:20 UTC1h 10m
2026-05-25 FDA353 NKM → HNA May 25, 03:20 UTCMay 25, 04:00 UTC40m
2026-05-24 FDA362 AOJ → NKM May 24, 23:35 UTCMay 25, 02:20 UTC2h 45m
2026-05-24 FDA398 OKD → NKM May 24, 10:15 UTCMay 24, 11:45 UTC1h 30m
2026-05-24 FDA397 NKM → OKD May 24, 08:00 UTCMay 24, 09:20 UTC1h 20m
2026-05-24 FDA310 FUK → NKM May 24, 06:05 UTCMay 24, 07:05 UTC1h 0m
2026-05-24 FDA504 KIJ → FUK May 24, 03:40 UTCMay 24, 04:45 UTC1h 5m
2026-05-24 FDA613 CTS → KIJ May 24, 01:50 UTCMay 24, 02:20 UTC30m
2026-05-23 FDA511 FUK → CTS May 23, 22:55 UTCMay 24, 00:55 UTC2h 0m
2026-05-23 FDA536 SDJ → FUK May 23, 09:15 UTCMay 23, 10:35 UTC1h 20m
2026-05-23 FDA535 FUK → SDJ May 23, 07:00 UTCMay 23, 08:10 UTC1h 10m
2026-05-23 FDA205 MMJ → FUK May 23, 04:15 UTCMay 23, 05:20 UTC1h 5m
2026-05-23 FDA234 UKB → MMJ May 23, 02:55 UTCMay 23, 03:35 UTC40m
2026-05-23 FDA233 MMJ → UKB May 23, 01:15 UTCMay 23, 02:00 UTC45m
2026-05-22 FDA200 FUK → MMJ May 22, 23:25 UTCMay 23, 00:30 UTC1h 5m
2026-05-22 FDA518 CTS → FUK May 22, 09:25 UTCMay 22, 11:20 UTC1h 55m
2026-05-22 FDA616 KIJ → CTS May 22, 05:10 UTCMay 22, 08:30 UTC3h 20m
2026-05-22 FDA211 MMJ → CTS May 22, 02:50 UTCMay 22, 04:05 UTC1h 15m
2026-05-22 FDA224 OKD → MMJ May 22, 00:35 UTCMay 22, 01:50 UTC1h 15m
2026-05-21 FDA391 NKM → OKD May 21, 22:35 UTCMay 21, 23:55 UTC1h 20m
2026-05-21 FDA398 OKD → NKM May 21, 10:00 UTCMay 21, 11:30 UTC1h 30m
2026-05-21 FDA397 NKM → OKD May 21, 08:00 UTCMay 21, 09:20 UTC1h 20m
2026-05-21 FDA310 FUK → NKM May 21, 06:25 UTCMay 21, 07:20 UTC55m
2026-05-21 FDA504 KIJ → FUK May 21, 03:50 UTCMay 21, 05:15 UTC1h 25m
2026-05-21 FDA613 CTS → KIJ May 21, 02:00 UTCMay 21, 02:35 UTC35m
2026-05-20 FDA511 FUK → CTS May 20, 22:55 UTCMay 21, 00:50 UTC1h 55m

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 JA10FJ page for operator, model, and routing details .

Mode-S 845B9C frequently asked

What is Mode-S code 845B9C?
845B9C is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA10FJ.
Where is Mode-S 845B9C registered?
Mode-S code 845B9C is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 845B9C broadcasting right now?
Yes. Mode-S 845B9C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 845B9C, octal 41055634, decimal 8,674,204.
What flights does 845B9C operate?
Mode-S 845B9C has broadcast 20 distinct callsigns, including FDA518, FDA536, FDA535, FDA391, FDA205.