Apparatus

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sensors Mode-S transponder

45D066

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-TCF · AIRBUS A-321

Hex
45D066
Octal
21350146
Decimal
4,575,334
Country
DK
Tail
OY-TCF
Type
A321
Broadcasting now · callsign VKG543 · 32,000 ft
Flights observed
134
Distinct callsigns
20
Country
DK
Last broadcast
2h ago

Current position

45D066 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 45D066 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
VKG046 - 7 2026-06-30
VKG607 - 6 2026-07-03
VKG574 - 6 2026-06-24
VKG562 - 6 2026-07-04
VKG129 - 6 2026-06-23
VKG128 - 6 2026-06-23
VKG047 - 6 2026-06-30
VKG616 - 5 2026-07-03
VKG575 - 5 2026-06-24
VKG543 - 5 2026-06-27
VKG184 - 5 2026-06-19
VKG051 - 5 2026-06-29
VKG045 - 5 2026-06-29
VKG185 - 4 2026-06-19
VKG037 - 4 2026-06-29
VKG036 - 4 2026-06-29
VKG525 - 3 2026-06-11
VKG512 SunClass Airlines 3 2026-06-11
VKG1047 SunClass Airlines 3 2026-06-23
VKG805 SunClass Airlines 2 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 VKG562 - Jul 4, 16:40 UTCJul 4, 20:05 UTC3h 25m
2026-07-03 VKG603 - Jul 3, 22:10 UTCJul 4, 02:40 UTC4h 30m
2026-07-03 VKG602 - Jul 3, 16:15 UTCJul 3, 20:20 UTC4h 5m
2026-07-03 VKG607 - Jul 3, 10:45 UTCJul 3, 14:30 UTC3h 45m
2026-07-03 VKG616 OSL → KGS Jul 3, 05:15 UTCJul 3, 09:00 UTC3h 45m
2026-07-02 VKG4902 - Jul 2, 17:00 UTCJul 2, 20:10 UTC3h 10m
2026-06-30 VKG047 - Jun 30, 10:20 UTCJun 30, 10:45 UTC25m
2026-06-30 VKG046 - Jun 30, 05:25 UTCJun 30, 08:45 UTC3h 20m
2026-06-29 VKG051 LCA → OSL Jun 29, 22:55 UTCJun 30, 03:10 UTC4h 16m
2026-06-29 VKG045 OSL → LCA Jun 29, 16:55 UTCJun 29, 21:14 UTC4h 20m
2026-06-29 VKG037 - Jun 29, 11:35 UTCJun 29, 14:29 UTC2h 55m
2026-06-29 VKG036 - Jun 29, 06:40 UTCJun 29, 09:40 UTC3h 0m
2026-06-29 VKG4545 BGO → OSL Jun 29, 02:30 UTCJun 29, 03:05 UTC35m
2026-06-28 VKG1545 - Jun 28, 22:04 UTCJun 29, 01:10 UTC3h 5m
2026-06-28 VKG1544 - Jun 28, 17:25 UTCJun 28, 20:29 UTC3h 5m
2026-06-28 VKG735 - Jun 28, 10:55 UTCJun 28, 15:05 UTC4h 10m
2026-06-28 VKG734 - Jun 28, 05:20 UTCJun 28, 09:30 UTC4h 10m
2026-06-28 VKG4561 OSL → BGO Jun 28, 02:05 UTCJun 28, 02:44 UTC40m
2026-06-27 VKG543 CHQ → OSL Jun 27, 20:34 UTCJun 28, 00:35 UTC4h 0m
2026-06-27 VKG562 - Jun 27, 15:24 UTCJun 27, 19:00 UTC3h 35m
2026-06-26 VKG603 - Jun 26, 21:55 UTCJun 27, 02:25 UTC4h 30m
2026-06-26 VKG602 - Jun 26, 16:30 UTCJun 26, 20:40 UTC4h 10m
2026-06-26 VKG607 - Jun 26, 11:05 UTCJun 26, 14:50 UTC3h 45m
2026-06-26 VKG616 OSL → KGS Jun 26, 06:00 UTCJun 26, 09:35 UTC3h 35m
2026-06-26 VKG805 AYT → OSL Jun 26, 00:45 UTCJun 26, 02:05 UTC1h 20m
2026-06-25 VKG805 AYT → OSL Jun 25, 22:04 UTCJun 26, 00:39 UTC2h 35m
2026-06-25 VKG804 OSL → AYT Jun 25, 16:59 UTCJun 25, 20:30 UTC3h 30m
2026-06-25 VKG597 - Jun 25, 11:25 UTCJun 25, 15:15 UTC3h 50m
2026-06-25 VKG570 - Jun 25, 05:39 UTCJun 25, 09:10 UTC3h 30m
2026-06-24 VKG575 - Jun 24, 22:29 UTCJun 25, 02:30 UTC4h 0m
2026-06-24 VKG652 ARN → RHO Jun 24, 17:25 UTCJun 24, 20:44 UTC3h 20m
2026-06-24 VKG653 RHO → ARN Jun 24, 12:20 UTCJun 24, 16:05 UTC3h 45m
2026-06-24 VKG574 - Jun 24, 06:59 UTCJun 24, 10:39 UTC3h 40m
2026-06-23 VKG1047 KVA → OSL Jun 23, 18:45 UTCJun 23, 22:10 UTC3h 25m
2026-06-23 VKG128 - Jun 23, 14:39 UTCJun 23, 17:09 UTC2h 30m
2026-06-23 VKG129 - Jun 23, 10:24 UTCJun 23, 13:05 UTC2h 40m
2026-06-23 VKG046 - Jun 23, 05:34 UTCJun 23, 08:35 UTC3h 0m
2026-06-22 VKG4537 - Jun 22, 18:44 UTCJun 22, 19:19 UTC35m
2026-06-22 VKG462 CHQ → CPH Jun 22, 13:25 UTCJun 22, 17:34 UTC4h 10m
2026-06-22 VKG068 - Jun 22, 07:14 UTCJun 22, 11:50 UTC4h 35m
2026-06-22 VKG4748 - Jun 22, 02:10 UTCJun 22, 03:30 UTC1h 20m
2026-06-21 VKG469 - Jun 21, 21:34 UTCJun 22, 00:50 UTC3h 15m
2026-06-21 VKG424 ORB → RHO Jun 21, 16:14 UTCJun 21, 19:50 UTC3h 35m
2026-06-21 VKG441 CPH → LPA Jun 21, 11:00 UTCJun 21, 14:50 UTC3h 50m
2026-06-21 VKG468 - Jun 21, 05:15 UTCJun 21, 08:25 UTC3h 10m
2026-06-20 VKG807 AYT → MMX Jun 20, 19:40 UTCJun 20, 22:59 UTC3h 20m
2026-06-20 VKG806 MMX → AYT Jun 20, 14:35 UTCJun 20, 17:44 UTC3h 10m
2026-06-20 VKG433 CPH → PMI Jun 20, 10:44 UTCJun 20, 13:14 UTC2h 30m
2026-06-20 VKG432 PMI → CPH Jun 20, 05:59 UTCJun 20, 08:49 UTC2h 50m
2026-06-19 VKG475 - Jun 19, 21:04 UTCJun 19, 23:34 UTC2h 30m

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

Mode-S 45D066 frequently asked

What is Mode-S code 45D066?
45D066 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-TCF.
Where is Mode-S 45D066 registered?
Mode-S code 45D066 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45D066 broadcasting right now?
Yes. Mode-S 45D066 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45D066, octal 21350146, decimal 4,575,334.
What flights does 45D066 operate?
Mode-S 45D066 has broadcast 20 distinct callsigns, including VKG046, VKG607, VKG574, VKG562, VKG129.