Apparatus

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sensors Mode-S transponder

461A85

ICAO 24-bit transponder address · allocated to Finland

Hex
461A85
Octal
21415205
Decimal
4,594,309
Country
FI
No current signal · last broadcast 3h ago
Flights observed
81
Distinct callsigns
4
Country
FI
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 461A85.

Country allocation

The ICAO 24-bit address 461A85 falls within the block assigned to Finland (FI) by ICAO Annex 10, Volume III. Every aircraft registered in Finland 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 4 distinct

Callsign Airline Flights Last seen
FSF120A - 70 2026-07-18
OHKBD - 5 2026-06-15
FSF922C - 3 2026-07-17
FSF515A - 3 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 FSF120A - Jul 18, 17:40 UTCJul 18, 19:05 UTC1h 25m
2026-07-18 FSF120A - Jul 18, 14:45 UTCJul 18, 15:50 UTC1h 5m
2026-07-18 FSF120A - Jul 18, 14:00 UTCJul 18, 14:10 UTC10m
2026-07-17 FSF922C - Jul 17, 11:45 UTCJul 17, 12:50 UTC1h 5m
2026-07-17 FSF922C - Jul 17, 09:04 UTCJul 17, 11:00 UTC1h 55m
2026-07-17 FSF922C - Jul 17, 06:54 UTCJul 17, 07:35 UTC40m
2026-07-15 FSF120A OLB → SZG Jul 15, 16:25 UTCJul 15, 18:25 UTC2h 0m
2026-07-15 FSF120A - Jul 15, 11:40 UTCJul 15, 13:50 UTC2h 10m
2026-07-14 FSF120A - Jul 14, 12:50 UTCJul 14, 16:55 UTC4h 5m
2026-07-14 FSF120A - Jul 14, 11:45 UTCJul 14, 12:10 UTC25m
2026-07-13 FSF120A - Jul 13, 10:20 UTCJul 13, 11:25 UTC1h 5m
2026-07-13 FSF120A - Jul 13, 08:01 UTCJul 13, 09:00 UTC1h 0m
2026-07-13 FSF120A - Jul 13, 07:20 UTCJul 13, 07:30 UTC10m
2026-07-12 FSF120A - Jul 12, 12:01 UTCJul 12, 13:35 UTC1h 35m
2026-07-12 FSF120A - Jul 12, 09:00 UTCJul 12, 11:25 UTC2h 25m
2026-07-10 FSF120A - Jul 10, 15:15 UTCJul 10, 17:40 UTC2h 25m
2026-07-10 FSF120A - Jul 10, 12:20 UTCJul 10, 13:00 UTC40m
2026-07-10 FSF120A - Jul 10, 10:05 UTCJul 10, 11:30 UTC1h 25m
2026-07-09 FSF120A - Jul 9, 09:15 UTCJul 9, 11:10 UTC1h 55m
2026-07-09 FSF120A - Jul 9, 06:10 UTCJul 9, 07:50 UTC1h 40m
2026-07-08 FSF120A - Jul 8, 09:25 UTCJul 8, 10:45 UTC1h 20m
2026-07-08 FSF120A - Jul 8, 06:50 UTCJul 8, 08:00 UTC1h 10m
2026-07-07 FSF120A SZG → LTT Jul 7, 11:25 UTCJul 7, 13:20 UTC1h 55m
2026-07-05 FSF120A LTT → SZG Jul 5, 10:10 UTCJul 5, 12:00 UTC1h 50m
2026-07-05 FSF120A - Jul 5, 08:10 UTCJul 5, 09:35 UTC1h 25m
2026-07-05 FSF120A - Jul 5, 07:00 UTCJul 5, 07:30 UTC30m
2026-06-28 FSF120A - Jun 28, 15:34 UTCJun 28, 17:39 UTC2h 5m
2026-06-28 FSF120A - Jun 28, 11:35 UTCJun 28, 13:34 UTC2h 0m
2026-06-28 FSF120A - Jun 28, 09:45 UTCJun 28, 10:39 UTC55m
2026-06-26 FSF120A - Jun 26, 11:49 UTCJun 26, 12:44 UTC55m
2026-06-26 FSF120A - Jun 26, 09:39 UTCJun 26, 10:20 UTC40m
2026-06-26 FSF120A - Jun 26, 07:35 UTCJun 26, 08:54 UTC1h 20m
2026-06-26 FSF120A - Jun 26, 04:55 UTCJun 26, 06:35 UTC1h 40m
2026-06-25 FSF515A PSA → SZG Jun 25, 10:09 UTCJun 25, 11:35 UTC1h 25m
2026-06-25 FSF515A BRN → PSA Jun 25, 07:30 UTCJun 25, 08:55 UTC1h 25m
2026-06-25 FSF515A - Jun 25, 05:09 UTCJun 25, 06:14 UTC1h 5m
2026-06-23 FSF120A - Jun 23, 08:30 UTCJun 23, 10:04 UTC1h 35m
2026-06-22 FSF120A - Jun 22, 12:40 UTCJun 22, 15:20 UTC2h 40m
2026-06-22 FSF120A - Jun 22, 09:19 UTCJun 22, 10:55 UTC1h 35m
2026-06-22 FSF120A - Jun 22, 08:29 UTCJun 22, 08:44 UTC15m
2026-06-22 FSF120A - Jun 22, 07:30 UTCJun 22, 07:40 UTC10m
2026-06-21 FSF120A - Jun 21, 13:54 UTCJun 21, 16:14 UTC2h 20m
2026-06-21 FSF120A - Jun 21, 10:04 UTCJun 21, 12:14 UTC2h 10m
2026-06-21 FSF120A - Jun 21, 05:54 UTCJun 21, 07:25 UTC1h 30m
2026-06-19 FSF120A MHG → SZG Jun 19, 16:55 UTCJun 19, 17:49 UTC55m
2026-06-19 FSF120A - Jun 19, 14:09 UTCJun 19, 15:54 UTC1h 45m
2026-06-19 FSF120A - Jun 19, 11:39 UTCJun 19, 13:29 UTC1h 50m
2026-06-18 FSF120A - Jun 18, 13:20 UTCJun 18, 14:25 UTC1h 5m
2026-06-18 FSF120A - Jun 18, 11:35 UTCJun 18, 12:05 UTC30m
2026-06-17 FSF120A - Jun 17, 11:35 UTCJun 17, 13:20 UTC1h 45m

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.

Mode-S 461A85 frequently asked

What is Mode-S code 461A85?
461A85 is an ICAO 24-bit transponder address. Allocated to Finland.
Where is Mode-S 461A85 registered?
Mode-S code 461A85 is allocated to Finland (FI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 461A85 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 461A85, octal 21415205, decimal 4,594,309.
What flights does 461A85 operate?
Mode-S 461A85 has broadcast 4 distinct callsigns, including FSF120A, OHKBD, FSF922C, FSF515A.