Apparatus

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sensors Mode-S transponder

45A943

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-JJC · HAWKER BEECHCRAFT Hawker 750/850

Hex
45A943
Octal
21324503
Decimal
4,565,315
Country
DK
Tail
OY-JJC
Type
H25B
No current signal · last broadcast 9d ago
Flights observed
64
Distinct callsigns
15
Country
DK
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 45A943.

Country allocation

The ICAO 24-bit address 45A943 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 15 distinct

Callsign Airline Flights Last seen
SUS911 Sun Air of Scandinavia 16 2026-07-25
SUS9011 Sun Air of Scandinavia 16 2026-07-24
SUS9111 Sun Air of Scandinavia 10 2026-07-25
GRL902 Air Greenland 6 2026-07-17
SUS911B - 3 2026-07-07
GRL901 - 3 2026-07-16
SUS911A - 2 2026-07-07
SUS912 - 1 2026-07-03
SUS911C - 1 2026-07-07
SUS901 - 1 2026-07-02
GRL901A - 1 2026-07-13
GRL5158 - 1 2026-07-14
GRL5137 - 1 2026-06-18
GRL5129 - 1 2026-06-08
GRL5106 Air Greenland 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SUS9111 GVA → BLL Jul 25, 09:40 UTCJul 25, 10:05 UTC25m
2026-07-25 SUS911 ACE → BLL Jul 25, 04:40 UTCJul 25, 07:10 UTC2h 30m
2026-07-24 SUS9011 BLL → ACE Jul 24, 23:30 UTCJul 25, 02:20 UTC2h 50m
2026-07-24 SUS911 ACE → BLL Jul 24, 00:40 UTCJul 24, 03:55 UTC3h 15m
2026-07-23 SUS9011 BLL → ACE Jul 23, 20:50 UTCJul 23, 23:50 UTC3h 0m
2026-07-20 SUS9111 GVA → BLL Jul 20, 12:50 UTCJul 20, 13:25 UTC35m
2026-07-20 SUS911 - Jul 20, 09:55 UTCJul 20, 10:30 UTC35m
2026-07-19 SUS911 - Jul 19, 13:50 UTCJul 19, 15:50 UTC2h 0m
2026-07-19 SUS9011 - Jul 19, 07:20 UTCJul 19, 09:10 UTC1h 50m
2026-07-17 GRL902 CPH → BLL Jul 17, 08:04 UTCJul 17, 08:30 UTC25m
2026-07-16 GRL901 - Jul 16, 06:00 UTCJul 16, 16:25 UTC10h 25m
2026-07-15 SUS9111 RKV → BLL Jul 15, 10:20 UTCJul 15, 12:55 UTC2h 35m
2026-07-15 SUS911 - Jul 15, 09:10 UTCJul 15, 09:35 UTC25m
2026-07-15 SUS911 - Jul 15, 06:00 UTCJul 15, 08:10 UTC2h 10m
2026-07-14 GRL5158 KEF → CPH Jul 14, 09:30 UTCJul 14, 18:30 UTC9h 0m
2026-07-13 GRL901A - Jul 13, 16:40 UTCJul 13, 19:45 UTC3h 5m
2026-07-13 SUS911 - Jul 13, 13:05 UTCJul 13, 15:40 UTC2h 35m
2026-07-13 SUS9011 - Jul 13, 11:05 UTCJul 13, 12:10 UTC1h 5m
2026-07-08 SUS9111 ARN → BLL Jul 8, 14:20 UTCJul 8, 15:15 UTC55m
2026-07-07 SUS911C - Jul 7, 21:15 UTCJul 7, 21:40 UTC25m
2026-07-07 SUS911B ATH → LPI Jul 7, 17:20 UTCJul 7, 20:40 UTC3h 20m
2026-07-07 SUS911A - Jul 7, 14:30 UTCJul 7, 15:55 UTC1h 25m
2026-07-07 SUS9011 - Jul 7, 09:10 UTCJul 7, 12:50 UTC3h 40m
2026-07-03 SUS912 - Jul 3, 09:30 UTCJul 3, 17:40 UTC8h 10m
2026-07-02 SUS901 - Jul 2, 06:51 UTCJul 2, 16:15 UTC9h 24m
2026-07-01 SUS9111 ZRH → BLL Jul 1, 13:00 UTCJul 1, 14:15 UTC1h 15m
2026-07-01 SUS911 ACE → BLL Jul 1, 09:45 UTCJul 1, 11:15 UTC1h 30m
2026-06-30 SUS911 ACE → BLL Jun 30, 15:00 UTCJun 30, 18:35 UTC3h 35m
2026-06-30 SUS9011 BLL → ACE Jun 30, 07:10 UTCJun 30, 10:55 UTC3h 45m
2026-06-27 SUS9111 GVA → BLL Jun 27, 07:19 UTCJun 27, 07:49 UTC30m
2026-06-26 SUS9011 BLL → ACE Jun 26, 11:00 UTCJun 26, 17:54 UTC6h 55m
2026-06-26 SUS911 ACE → BLL Jun 26, 08:40 UTCJun 26, 09:45 UTC1h 5m
2026-06-26 SUS9011 BLL → ACE Jun 26, 06:54 UTCJun 26, 07:45 UTC50m
2026-06-24 SUS9111 GVA → BLL Jun 24, 07:30 UTCJun 24, 07:59 UTC30m
2026-06-23 SUS911B ALC → OSL Jun 23, 15:19 UTCJun 23, 17:50 UTC2h 30m
2026-06-23 SUS911 ACE → BLL Jun 23, 10:29 UTCJun 23, 13:39 UTC3h 10m
2026-06-23 SUS9011 BLL → ACE Jun 23, 07:05 UTCJun 23, 07:29 UTC25m
2026-06-19 GRL902 - Jun 19, 10:44 UTCJun 19, 11:09 UTC25m
2026-06-18 GRL5137 - Jun 18, 11:05 UTCJun 18, 21:30 UTC10h 25m
2026-06-17 SUS911 ACE → BLL Jun 17, 22:10 UTCJun 17, 22:50 UTC40m
2026-06-16 SUS911 ACE → BLL Jun 16, 14:15 UTCJun 16, 17:45 UTC3h 30m
2026-06-16 SUS9011 BLL → ACE Jun 16, 08:20 UTCJun 16, 11:35 UTC3h 15m
2026-06-09 GRL902 CPH → BLL Jun 9, 07:35 UTCJun 9, 08:00 UTC25m
2026-06-08 GRL5129 - Jun 8, 07:05 UTCJun 8, 18:00 UTC10h 55m
2026-06-06 SUS9111 GVA → BLL Jun 6, 16:39 UTCJun 6, 17:10 UTC30m
2026-06-06 SUS911 ACE → BLL Jun 6, 10:04 UTCJun 6, 12:54 UTC2h 50m
2026-06-06 SUS9011 BLL → ACE Jun 6, 05:05 UTCJun 6, 08:00 UTC2h 55m
2026-06-01 SUS9111 GVA → BLL Jun 1, 11:35 UTCJun 1, 12:20 UTC45m
2026-06-01 SUS911B ALC → OSL Jun 1, 07:35 UTCJun 1, 10:20 UTC2h 45m
2026-06-01 SUS911A IAD → YQX Jun 1, 06:10 UTCJun 1, 07:05 UTC55m

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

Mode-S 45A943 frequently asked

What is Mode-S code 45A943?
45A943 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-JJC.
Where is Mode-S 45A943 registered?
Mode-S code 45A943 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45A943 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45A943, octal 21324503, decimal 4,565,315.
What flights does 45A943 operate?
Mode-S 45A943 has broadcast 15 distinct callsigns, including SUS911, SUS9011, SUS9111, GRL902, SUS911B.