Apparatus

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sensors Mode-S transponder

45AB26

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-JYF · BOEING 737 MAX 8

Hex
45AB26
Octal
21325446
Decimal
4,565,798
Country
DK
Tail
OY-JYF
Type
B38M
No current signal · last broadcast 2h ago
Flights observed
273
Distinct callsigns
20
Country
DK
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 45AB26.

Country allocation

The ICAO 24-bit address 45AB26 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
JTD392 - 6 2026-07-09
JTD391 - 6 2026-07-09
JTD331 Jet Time 6 2026-07-03
JTD332 - 5 2026-07-03
JTD984 Jet Time 4 2026-06-04
JTD983 Jet Time 4 2026-06-04
JTD537 - 4 2026-07-04
JTD531 Jet Time 4 2026-04-24
JTD303 Jet Time 4 2026-06-28
JTD248 - 4 2026-07-04
SAS1694 Scandinavian Airlines System 3 2026-05-31
JTD680 - 3 2026-06-19
JTD664 - 3 2026-06-21
JTD663 - 3 2026-06-21
JTD662 - 3 2026-06-21
JTD661 - 3 2026-06-21
JTD576 - 3 2026-04-13
JTD575 Jet Time 3 2026-04-13
JTD538 - 3 2026-07-11
JTD532 Jet Time 3 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 JTD9258 - Jul 13, 23:00 UTCJul 14, 00:30 UTC1h 30m
2026-07-13 JTD528 - Jul 13, 18:45 UTCJul 13, 21:50 UTC3h 5m
2026-07-13 JTD227 - Jul 13, 15:00 UTCJul 13, 17:40 UTC2h 40m
2026-07-13 JTD228 - Jul 13, 09:55 UTCJul 13, 12:45 UTC2h 50m
2026-07-13 JTD527 - Jul 13, 06:01 UTCJul 13, 08:55 UTC2h 55m
2026-07-12 JTD544 - Jul 12, 11:55 UTCJul 12, 14:55 UTC3h 0m
2026-07-12 JTD543 - Jul 12, 05:50 UTCJul 12, 09:15 UTC3h 25m
2026-07-11 JTD508 - Jul 11, 19:55 UTCJul 11, 22:20 UTC2h 25m
2026-07-11 JTD507 - Jul 11, 16:05 UTCJul 11, 18:35 UTC2h 30m
2026-07-11 JTD538 CHQ → BLL Jul 11, 11:10 UTCJul 11, 14:35 UTC3h 25m
2026-07-11 JTD247 CPH → CHQ Jul 11, 06:55 UTCJul 11, 09:55 UTC3h 0m
2026-07-10 JTD378 - Jul 10, 20:30 UTCJul 10, 23:45 UTC3h 15m
2026-07-10 JTD377 CPH → KGS Jul 10, 16:25 UTCJul 10, 19:20 UTC2h 55m
2026-07-10 JTD9001 - Jul 10, 14:35 UTCJul 10, 15:05 UTC30m
2026-07-10 JTD558 - Jul 10, 10:10 UTCJul 10, 13:35 UTC3h 25m
2026-07-10 JTD557 - Jul 10, 05:15 UTCJul 10, 08:10 UTC2h 55m
2026-07-10 JTD9531 CPH → BLL Jul 10, 03:15 UTCJul 10, 03:45 UTC30m
2026-07-09 JTD386 - Jul 9, 20:05 UTCJul 9, 23:30 UTC3h 25m
2026-07-09 JTD385 - Jul 9, 15:55 UTCJul 9, 18:35 UTC2h 40m
2026-07-09 JTD392 - Jul 9, 11:05 UTCJul 9, 14:35 UTC3h 30m
2026-07-09 JTD391 - Jul 9, 07:00 UTCJul 9, 09:45 UTC2h 45m
2026-07-08 JTD9406 - Jul 8, 19:00 UTCJul 8, 19:35 UTC35m
2026-07-08 JTD406 - Jul 8, 13:25 UTCJul 8, 18:10 UTC4h 45m
2026-07-08 JTD405 - Jul 8, 07:10 UTCJul 8, 11:50 UTC4h 40m
2026-07-08 JTD9405 - Jul 8, 04:45 UTCJul 8, 05:15 UTC30m
2026-07-07 JTD394 - Jul 7, 14:50 UTCJul 7, 19:35 UTC4h 45m
2026-07-07 JTD393 - Jul 7, 08:30 UTCJul 7, 13:10 UTC4h 40m
2026-07-07 JTD9393 - Jul 7, 06:05 UTCJul 7, 06:35 UTC30m
2026-07-06 JTD560 - Jul 6, 21:05 UTCJul 7, 01:20 UTC4h 15m
2026-07-06 JTD483 - Jul 6, 16:00 UTCJul 6, 19:40 UTC3h 40m
2026-07-06 JTD484 - Jul 6, 10:10 UTCJul 6, 14:30 UTC4h 20m
2026-07-06 JTD341 - Jul 6, 05:20 UTCJul 6, 08:50 UTC3h 30m
2026-07-05 SAS2796 NCE → CPH Jul 5, 20:20 UTCJul 5, 22:25 UTC2h 5m
2026-07-05 SAS2795 - Jul 5, 17:25 UTCJul 5, 19:15 UTC1h 50m
2026-07-05 SAS34L - Jul 5, 14:15 UTCJul 5, 15:40 UTC1h 25m
2026-07-05 SAS567 - Jul 5, 11:30 UTCJul 5, 12:55 UTC1h 25m
2026-07-05 SAS2865 BGO → CPH Jul 5, 08:25 UTCJul 5, 09:30 UTC1h 5m
2026-07-05 SAS2862 - Jul 5, 06:30 UTCJul 5, 07:35 UTC1h 5m
2026-07-04 JTD248 - Jul 4, 21:10 UTCJul 5, 00:25 UTC3h 15m
2026-07-04 JTD537 - Jul 4, 16:45 UTCJul 4, 19:40 UTC2h 55m
2026-07-04 JTD538 - Jul 4, 10:20 UTCJul 4, 13:50 UTC3h 30m
2026-07-04 JTD247 - Jul 4, 05:30 UTCJul 4, 08:15 UTC2h 45m
2026-07-03 JTD332 CHQ → CPH Jul 3, 20:35 UTCJul 3, 23:55 UTC3h 20m
2026-07-03 JTD331 CPH → CHQ Jul 3, 16:05 UTCJul 3, 19:00 UTC2h 55m
2026-07-03 JTD376 - Jul 3, 10:15 UTCJul 3, 14:05 UTC3h 50m
2026-07-03 JTD375 - Jul 3, 05:10 UTCJul 3, 08:45 UTC3h 35m
2026-07-02 SAS688 MXP → CPH Jul 2, 19:15 UTCJul 2, 20:55 UTC1h 40m
2026-07-02 SAS687 - Jul 2, 16:20 UTCJul 2, 18:05 UTC1h 45m
2026-07-02 JTD392 - Jul 2, 11:10 UTCJul 2, 14:45 UTC3h 35m
2026-07-02 JTD391 - Jul 2, 06:35 UTCJul 2, 09:50 UTC3h 15m

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-JYF page for operator, model, and routing details .

Mode-S 45AB26 frequently asked

What is Mode-S code 45AB26?
45AB26 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-JYF.
Where is Mode-S 45AB26 registered?
Mode-S code 45AB26 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45AB26 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45AB26, octal 21325446, decimal 4,565,798.
What flights does 45AB26 operate?
Mode-S 45AB26 has broadcast 20 distinct callsigns, including JTD392, JTD391, JTD331, JTD332, JTD984.