Apparatus

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sensors Mode-S transponder

45AC4F

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-KBO · AIRBUS A-319

Hex
45AC4F
Octal
21326117
Decimal
4,566,095
Country
DK
Tail
OY-KBO
Type
A319
No current signal · last broadcast Jul 25, 15:55 UTC
Flights observed
452
Distinct callsigns
20
Country
DK
Last broadcast
Jul 25, 15:55 UTC

Last known position

Most recent position reported by Mode-S 45AC4F.

Country allocation

The ICAO 24-bit address 45AC4F falls within the block assigned to Denmark (DK) by ICAO Annex 10, Volume III. Every aircraft registered in Denmark 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
SAS39G Scandinavian Airlines System 43 2026-07-23
SAS86N Scandinavian Airlines System 42 2026-07-23
SAS2964 Scandinavian Airlines System 40 2026-07-25
SAS2963 Scandinavian Airlines System 37 2026-07-25
SAS2875 Scandinavian Airlines System 21 2026-07-18
SAS2864 Scandinavian Airlines System 21 2026-07-18
SAS550 - 16 2026-06-18
SAS549 Scandinavian Airlines System 16 2026-06-17
SAS98K Scandinavian Airlines System 15 2026-05-29
SAS69B Scandinavian Airlines System 15 2026-05-29
SAS55L - 9 2026-06-18
SAS48D Scandinavian Airlines System 9 2026-06-09
SAS1680 - 9 2026-06-18
SAS1549 Scandinavian Airlines System 9 2026-06-09
SAS464 Scandinavian Airlines System 8 2026-06-17
SAS461 Scandinavian Airlines System 8 2026-06-17
SAS455 Scandinavian Airlines System 7 2026-07-23
SAS454 Scandinavian Airlines System 7 2026-07-23
SAS698 Scandinavian Airlines System 4 2026-07-17
SAS697 Scandinavian Airlines System 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SAS2964 FLR → CPH Jul 25, 14:10 UTCJul 25, 15:55 UTC1h 45m
2026-07-25 SAS2963 CPH → FLR Jul 25, 10:40 UTCJul 25, 12:40 UTC2h 0m
2026-07-25 SAS2865 BGO → CPH Jul 25, 08:35 UTCJul 25, 09:40 UTC1h 5m
2026-07-25 SAS2862 CPH → BGO Jul 25, 06:30 UTCJul 25, 07:35 UTC1h 5m
2026-07-23 SAS2964 FLR → CPH Jul 23, 19:45 UTCJul 23, 21:45 UTC2h 0m
2026-07-23 SAS2963 CPH → FLR Jul 23, 16:45 UTCJul 23, 18:30 UTC1h 45m
2026-07-23 SAS39G FLR → CPH Jul 23, 13:55 UTCJul 23, 15:55 UTC2h 0m
2026-07-23 SAS86N CPH → FLR Jul 23, 10:10 UTCJul 23, 11:55 UTC1h 45m
2026-07-23 SAS455 OSL → CPH Jul 23, 07:10 UTCJul 23, 08:00 UTC50m
2026-07-23 SAS454 CPH → OSL Jul 23, 05:15 UTCJul 23, 06:10 UTC55m
2026-07-22 SAS2964 FLR → CPH Jul 22, 18:40 UTCJul 22, 20:30 UTC1h 50m
2026-07-22 SAS2963 CPH → FLR Jul 22, 15:25 UTCJul 22, 17:15 UTC1h 50m
2026-07-21 SAS2964 - Jul 21, 18:40 UTCJul 21, 20:35 UTC1h 55m
2026-07-21 SAS2963 CPH → FLR Jul 21, 15:30 UTCJul 21, 17:25 UTC1h 55m
2026-07-21 SAS92U MAD → CPH Jul 21, 11:35 UTCJul 21, 14:25 UTC2h 50m
2026-07-21 SAS581 CPH → MAD Jul 21, 07:00 UTCJul 21, 09:45 UTC2h 45m
2026-07-18 SAS2966 FLR → CPH Jul 18, 19:35 UTCJul 18, 21:35 UTC2h 0m
2026-07-18 SAS2965 CPH → FLR Jul 18, 16:20 UTCJul 18, 18:15 UTC1h 55m
2026-07-18 SAS2875 BGO → CPH Jul 18, 13:00 UTCJul 18, 14:05 UTC1h 5m
2026-07-18 SAS2864 CPH → BGO Jul 18, 10:50 UTCJul 18, 11:55 UTC1h 5m
2026-07-18 SAS39G - Jul 18, 07:35 UTCJul 18, 09:25 UTC1h 50m
2026-07-18 SAS86N CPH → FLR Jul 18, 04:30 UTCJul 18, 06:20 UTC1h 50m
2026-07-17 SAS2836 - Jul 17, 19:49 UTCJul 17, 21:25 UTC1h 35m
2026-07-17 SAS2835 - Jul 17, 17:05 UTCJul 17, 18:44 UTC1h 40m
2026-07-17 SAS2964 - Jul 17, 13:55 UTCJul 17, 15:44 UTC1h 50m
2026-07-17 SAS2963 CPH → FLR Jul 17, 10:35 UTCJul 17, 12:30 UTC1h 55m
2026-07-17 SAS698 PSA → CPH Jul 17, 07:44 UTCJul 17, 09:25 UTC1h 40m
2026-07-17 SAS697 CPH → PSA Jul 17, 04:20 UTCJul 17, 06:29 UTC2h 10m
2026-07-16 SAS2964 - Jul 16, 18:55 UTCJul 16, 20:39 UTC1h 45m
2026-07-16 SAS2963 CPH → FLR Jul 16, 15:55 UTCJul 16, 17:49 UTC1h 55m
2026-07-16 SAS39G - Jul 16, 12:25 UTCJul 16, 14:15 UTC1h 50m
2026-07-16 SAS86N - Jul 16, 09:10 UTCJul 16, 11:10 UTC2h 0m
2026-07-15 SAS2832 - Jul 15, 20:45 UTCJul 15, 22:35 UTC1h 50m
2026-07-15 SAS2831 - Jul 15, 17:45 UTCJul 15, 19:25 UTC1h 40m
2026-07-15 SAS2865 BGO → CPH Jul 15, 08:50 UTCJul 15, 09:55 UTC1h 5m
2026-07-15 SAS2862 CPH → BGO Jul 15, 06:45 UTCJul 15, 07:50 UTC1h 5m
2026-07-14 SAS40G - Jul 14, 19:10 UTCJul 14, 20:00 UTC50m
2026-07-14 SAS1430 CPH → ARN Jul 14, 17:10 UTCJul 14, 18:05 UTC55m
2026-07-14 SAS39G - Jul 14, 12:35 UTCJul 14, 14:25 UTC1h 50m
2026-07-14 SAS86N CPH → FLR Jul 14, 09:20 UTCJul 14, 11:20 UTC2h 0m
2026-07-13 SAS2964 - Jul 13, 18:40 UTCJul 13, 20:25 UTC1h 45m
2026-07-13 SAS2963 CPH → FLR Jul 13, 15:25 UTCJul 13, 17:15 UTC1h 50m
2026-07-13 SAS2875 BGO → CPH Jul 13, 12:55 UTCJul 13, 14:00 UTC1h 5m
2026-07-13 SAS2864 CPH → BGO Jul 13, 10:55 UTCJul 13, 12:00 UTC1h 5m
2026-07-12 SAS2966 FLR → CPH Jul 12, 20:25 UTCJul 12, 22:15 UTC1h 50m
2026-07-12 SAS2965 CPH → FLR Jul 12, 17:25 UTCJul 12, 19:25 UTC2h 0m
2026-07-12 SAS2964 - Jul 12, 14:20 UTCJul 12, 16:10 UTC1h 50m
2026-07-12 SAS2963 CPH → FLR Jul 12, 10:45 UTCJul 12, 12:45 UTC2h 0m
2026-07-10 SAS2964 - Jul 10, 13:35 UTCJul 10, 15:25 UTC1h 50m
2026-07-10 SAS2963 CPH → FLR Jul 10, 10:30 UTCJul 10, 12:25 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 OY-KBO page for operator, model, and routing details .

Mode-S 45AC4F frequently asked

What is Mode-S code 45AC4F?
45AC4F is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-KBO.
Where is Mode-S 45AC4F registered?
Mode-S code 45AC4F is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45AC4F broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 15:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45AC4F, octal 21326117, decimal 4,566,095.
What flights does 45AC4F operate?
Mode-S 45AC4F has broadcast 20 distinct callsigns, including SAS39G, SAS86N, SAS2964, SAS2963, SAS2875.