Apparatus

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sensors Mode-S transponder

4601F2

ICAO 24-bit transponder address · allocated to Finland

Currently assigned to OH-ATE · ATR-72-500

Hex
4601F2
Octal
21400762
Decimal
4,588,018
Country
FI
Tail
OH-ATE
Type
AT75
No current signal · last broadcast Jul 26, 17:20 UTC
Flights observed
880
Distinct callsigns
20
Country
FI
Last broadcast
Jul 26, 17:20 UTC

Last known position

Most recent position reported by Mode-S 4601F2.

Country allocation

The ICAO 24-bit address 4601F2 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 20 distinct

Callsign Airline Flights Last seen
FIN2KK - 22 2026-07-20
FIN541 Finnair 21 2026-07-20
FIN2NP Finnair 15 2026-07-24
FIN1KE Finnair 14 2026-07-24
FIN7NP Finnair 13 2026-07-22
FIN9EP - 12 2026-07-18
FIN6YP - 12 2026-07-23
FIN6PH Finnair 12 2026-07-26
FIN5PH Finnair 12 2026-07-17
FIN4LB Finnair 12 2026-07-24
FIN4D Finnair 12 2026-07-26
FIN42T - 12 2026-07-23
FIN3ZP - 12 2026-07-18
FIN2EZ - 12 2026-06-22
FIN23P Finnair 12 2026-07-24
FIN1TJ - 12 2026-07-18
FIN1175 - 12 2026-06-22
FIN1079 Finnair 12 2026-07-24
FIN5TB Finnair 11 2026-07-24
FIN318 Finnair 11 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FIN89W VNO → HEL Jul 26, 15:40 UTCJul 26, 17:10 UTC1h 30m
2026-07-26 FIN1RE HEL → VNO Jul 26, 13:35 UTCJul 26, 15:05 UTC1h 30m
2026-07-26 FIN4W VNO → HEL Jul 26, 11:10 UTCJul 26, 12:40 UTC1h 30m
2026-07-26 FIN80U HEL → VNO Jul 26, 08:55 UTCJul 26, 10:30 UTC1h 35m
2026-07-26 FIN9T TLL → HEL Jul 26, 07:55 UTCJul 26, 08:15 UTC20m
2026-07-26 FIN7DE HEL → TLL Jul 26, 06:30 UTCJul 26, 06:50 UTC21m
2026-07-26 FIN6PH HEL → VNO Jul 26, 05:25 UTCJul 26, 05:50 UTC25m
2026-07-26 FIN4D HEL → TLL Jul 26, 04:15 UTCJul 26, 04:40 UTC25m
2026-07-25 FIN5WR IVL → HEL Jul 25, 19:00 UTCJul 25, 20:20 UTC1h 20m
2026-07-25 FIN8TV - Jul 25, 13:55 UTCJul 25, 15:15 UTC1h 20m
2026-07-25 FIN26B KUO → HEL Jul 25, 10:35 UTCJul 25, 11:30 UTC55m
2026-07-25 FIN3KC HEL → KUO Jul 25, 09:15 UTCJul 25, 10:00 UTC45m
2026-07-24 FIN318 VAA → HEL Jul 24, 18:45 UTCJul 24, 19:25 UTC40m
2026-07-24 FIN317 VAA → UME Jul 24, 17:05 UTCJul 24, 17:15 UTC10m
2026-07-24 FIN317 VAA → UME Jul 24, 15:45 UTCJul 24, 16:30 UTC45m
2026-07-24 FIN6KB TLL → HEL Jul 24, 14:40 UTCJul 24, 14:55 UTC15m
2026-07-24 FIN9KH HEL → TLL Jul 24, 13:40 UTCJul 24, 13:55 UTC15m
2026-07-24 FIN23P RIX → HEL Jul 24, 11:05 UTCJul 24, 12:10 UTC1h 5m
2026-07-24 FIN1079 HEL → RIX Jul 24, 09:25 UTCJul 24, 10:25 UTC1h 0m
2026-07-24 FIN2NP RIX → HEL Jul 24, 07:40 UTCJul 24, 08:35 UTC55m
2026-07-24 FIN1KE HEL → RIX Jul 24, 06:00 UTCJul 24, 07:00 UTC1h 0m
2026-07-24 FIN5TB TLL → HEL Jul 24, 04:55 UTCJul 24, 05:15 UTC20m
2026-07-24 FIN4LB HEL → TLL Jul 24, 04:05 UTCJul 24, 04:25 UTC20m
2026-07-23 FIN3EA BGO → HEL Jul 23, 19:45 UTCJul 23, 22:00 UTC2h 15m
2026-07-23 FIN7MP HEL → BGO Jul 23, 16:40 UTCJul 23, 19:10 UTC2h 30m
2026-07-23 FIN6YP - Jul 23, 15:05 UTCJul 23, 15:50 UTC45m
2026-07-23 FIN42T HEL → KUO Jul 23, 13:40 UTCJul 23, 14:30 UTC50m
2026-07-23 FIN6PH HEL → VNO Jul 23, 08:05 UTCJul 23, 08:25 UTC20m
2026-07-23 FIN4D HEL → TLL Jul 23, 07:10 UTCJul 23, 07:35 UTC25m
2026-07-23 FIN58G RIX → HEL Jul 23, 05:20 UTCJul 23, 06:20 UTC1h 0m
2026-07-23 FIN7MR HEL → RIX Jul 23, 03:55 UTCJul 23, 04:45 UTC50m
2026-07-22 FIN7NP GDN → HEL Jul 22, 19:50 UTCJul 22, 20:50 UTC1h 0m
2026-07-22 FIN7NP GDN → HEL Jul 22, 18:50 UTCJul 22, 19:10 UTC20m
2026-07-22 FIN5UT - Jul 22, 16:10 UTCJul 22, 17:45 UTC1h 35m
2026-07-22 FIN6KB TLL → HEL Jul 22, 14:30 UTCJul 22, 14:50 UTC20m
2026-07-22 FIN9KH HEL → TLL Jul 22, 13:35 UTCJul 22, 13:55 UTC20m
2026-07-22 FIN1KH - Jul 22, 11:25 UTCJul 22, 12:10 UTC45m
2026-07-20 FIN7NP GDN → HEL Jul 20, 20:45 UTCJul 20, 21:20 UTC35m
2026-07-20 FIN7NP GDN → HEL Jul 20, 19:20 UTCJul 20, 19:35 UTC15m
2026-07-20 FIN5UT - Jul 20, 16:35 UTCJul 20, 18:35 UTC2h 0m
2026-07-20 FIN42T HEL → HEL Jul 20, 13:25 UTCJul 20, 15:40 UTC2h 15m
2026-07-20 FIN2KK - Jul 20, 10:30 UTCJul 20, 11:50 UTC1h 20m
2026-07-20 FIN2KK - Jul 20, 08:50 UTCJul 20, 09:30 UTC40m
2026-07-20 FIN541 HEL → RVN Jul 20, 06:40 UTCJul 20, 07:25 UTC45m
2026-07-20 FIN541 HEL → RVN Jul 20, 04:25 UTCJul 20, 05:40 UTC1h 15m
2026-07-19 FIN8G - Jul 19, 15:45 UTCJul 19, 16:40 UTC55m
2026-07-19 FIN7EN - Jul 19, 14:10 UTCJul 19, 14:55 UTC45m
2026-07-19 FIN2KK - Jul 19, 10:35 UTCJul 19, 11:55 UTC1h 20m
2026-07-19 FIN2KK - Jul 19, 08:45 UTCJul 19, 09:20 UTC35m
2026-07-19 FIN541 - Jul 19, 07:00 UTCJul 19, 07:45 UTC45m

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 OH-ATE page for operator, model, and routing details .

Mode-S 4601F2 frequently asked

What is Mode-S code 4601F2?
4601F2 is an ICAO 24-bit transponder address. Allocated to Finland. Assigned to OH-ATE.
Where is Mode-S 4601F2 registered?
Mode-S code 4601F2 is allocated to Finland (FI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4601F2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4601F2, octal 21400762, decimal 4,588,018.
What flights does 4601F2 operate?
Mode-S 4601F2 has broadcast 20 distinct callsigns, including FIN2KK, FIN541, FIN2NP, FIN1KE, FIN7NP.