Apparatus

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sensors Mode-S transponder

45CE47

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-SRG · BOEING 767-200

Hex
45CE47
Octal
21347107
Decimal
4,574,791
Country
DK
Tail
OY-SRG
Type
B762
Transponder active on ground
Flights observed
149
Distinct callsigns
20
Country
DK
Last broadcast
Jul 22, 05:10 UTC

Last known position

Most recent position reported by Mode-S 45CE47.

Country allocation

The ICAO 24-bit address 45CE47 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
MUK6977 - 14 2026-07-15
MUK6978 - 13 2026-07-15
SRR6978 - 12 2026-06-19
SRR6977 - 11 2026-06-19
MUK6565 - 10 2026-07-14
MUK6566 - 9 2026-07-14
SRR6566 - 8 2026-06-23
SRR6565 - 8 2026-06-23
SRR6498 - 8 2026-06-25
SRR6646 Star Air 6 2026-07-20
SRR6645 Star Air 6 2026-07-20
SRR6382 - 6 2026-07-09
SRR6381 - 6 2026-07-09
SRR6497 - 4 2026-06-25
SRR6228 Star Air 3 2026-07-21
SRR6227 Star Air 3 2026-07-21
UPS267 United Parcel Service 2 2026-06-26
UPS266 - 2 2026-06-26
SRR7802 - 2 2026-07-16
SRR6119 Star Air 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 SRR7800 CGN → MMX Jul 22, 04:05 UTCJul 22, 05:10 UTC1h 5m
2026-07-21 SRR6227 BER → CGN Jul 21, 21:10 UTCJul 21, 22:05 UTC55m
2026-07-21 SRR6228 CGN → BER Jul 21, 02:50 UTCJul 21, 03:40 UTC50m
2026-07-20 SRR6645 OPO → LIS Jul 20, 20:35 UTCJul 20, 22:45 UTC2h 10m
2026-07-20 SRR6645 OPO → LIS Jul 20, 18:45 UTCJul 20, 19:15 UTC30m
2026-07-20 SRR6646 CGN → OPO Jul 20, 05:15 UTCJul 20, 05:55 UTC40m
2026-07-20 SRR6646 CGN → OPO Jul 20, 01:05 UTCJul 20, 03:20 UTC2h 15m
2026-07-17 UPS259 CIA → CGN Jul 17, 21:44 UTCJul 17, 23:05 UTC1h 20m
2026-07-17 UPS260 - Jul 17, 02:20 UTCJul 17, 03:20 UTC1h 0m
2026-07-16 SRR7801 MMX → CGN Jul 16, 22:45 UTCJul 16, 23:44 UTC1h 0m
2026-07-16 SRR7802 CGN → BGY Jul 16, 20:09 UTCJul 16, 21:25 UTC1h 15m
2026-07-15 MUK6977 EMA → CGN Jul 15, 22:10 UTCJul 15, 23:25 UTC1h 15m
2026-07-15 MUK6977 - Jul 15, 19:00 UTCJul 15, 19:35 UTC35m
2026-07-15 MUK6978 EMA → BFS Jul 15, 03:55 UTCJul 15, 04:35 UTC40m
2026-07-15 MUK6978 CGN → EMA Jul 15, 00:55 UTCJul 15, 01:55 UTC1h 0m
2026-07-14 MUK6565 - Jul 14, 21:35 UTCJul 14, 22:45 UTC1h 9m
2026-07-14 MUK6565 EDI → EMA Jul 14, 19:30 UTCJul 14, 20:10 UTC40m
2026-07-14 MUK6566 EMA → EDI Jul 14, 17:10 UTCJul 14, 17:50 UTC40m
2026-07-14 MUK6566 CGN → EMA Jul 14, 04:05 UTCJul 14, 05:10 UTC1h 5m
2026-07-09 SRR6381 - Jul 9, 20:15 UTCJul 9, 21:40 UTC1h 25m
2026-07-09 SRR6382 CGN → MRS Jul 9, 02:00 UTCJul 9, 03:15 UTC1h 15m
2026-07-07 MUK6977 EMA → CGN Jul 7, 22:05 UTCJul 7, 23:25 UTC1h 20m
2026-07-07 MUK6977 BFS → EMA Jul 7, 18:45 UTCJul 7, 19:25 UTC40m
2026-07-07 MUK6978 EMA → BFS Jul 7, 03:50 UTCJul 7, 04:35 UTC45m
2026-07-07 MUK6978 CGN → EMA Jul 7, 01:15 UTCJul 7, 02:20 UTC1h 5m
2026-07-02 SRR6645 OPO → CGN Jul 2, 20:20 UTCJul 2, 22:40 UTC2h 20m
2026-07-02 SRR6645 LIS → OPO Jul 2, 18:30 UTCJul 2, 19:00 UTC30m
2026-07-02 SRR6646 OPO → LIS Jul 2, 05:40 UTCJul 2, 06:20 UTC40m
2026-07-02 SRR6646 CGN → OPO Jul 2, 02:15 UTCJul 2, 04:30 UTC2h 15m
2026-06-29 SRR6227 BER → CGN Jun 29, 21:14 UTCJun 29, 22:10 UTC55m
2026-06-29 SRR6228 - Jun 29, 02:50 UTCJun 29, 03:39 UTC50m
2026-06-26 UPS267 IST → TLV Jun 26, 21:15 UTCJun 26, 22:49 UTC1h 35m
2026-06-26 UPS266 CGN → FCO Jun 26, 02:05 UTCJun 26, 03:34 UTC1h 30m
2026-06-25 SRR6497 - Jun 25, 20:05 UTCJun 25, 21:20 UTC1h 15m
2026-06-25 SRR6498 - Jun 25, 04:45 UTCJun 25, 05:09 UTC25m
2026-06-25 SRR6498 CGN → BGY Jun 25, 02:14 UTCJun 25, 03:20 UTC1h 5m
2026-06-24 SRR6381 - Jun 24, 20:35 UTCJun 24, 21:50 UTC1h 15m
2026-06-24 SRR6382 CGN → MRS Jun 24, 02:05 UTCJun 24, 03:15 UTC1h 10m
2026-06-23 SRR6565 EMA → CGN Jun 23, 21:49 UTCJun 23, 23:00 UTC1h 10m
2026-06-23 MUK6565 EDI → EMA Jun 23, 19:24 UTCJun 23, 20:04 UTC40m
2026-06-23 MUK6566 EMA → EDI Jun 23, 05:00 UTCJun 23, 05:39 UTC40m
2026-06-23 SRR6566 CGN → EMA Jun 23, 01:50 UTCJun 23, 02:55 UTC1h 5m
2026-06-19 SRR6977 EMA → CGN Jun 19, 21:54 UTCJun 19, 23:09 UTC1h 15m
2026-06-19 MUK6977 - Jun 19, 18:49 UTCJun 19, 19:29 UTC40m
2026-06-19 MUK6978 EMA → BFS Jun 19, 03:44 UTCJun 19, 04:25 UTC40m
2026-06-19 SRR6978 CGN → EMA Jun 19, 01:15 UTCJun 19, 02:14 UTC1h 0m
2026-06-16 UPS275 VIE → CGN Jun 16, 21:00 UTCJun 16, 22:20 UTC1h 20m
2026-06-16 UPS274 CGN → VIE Jun 16, 02:15 UTCJun 16, 03:15 UTC1h 0m
2026-06-12 SRR6497 BLQ → CGN Jun 12, 20:25 UTCJun 12, 21:45 UTC1h 20m
2026-06-12 SRR6498 - Jun 12, 04:20 UTCJun 12, 04:45 UTC25m

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

Mode-S 45CE47 frequently asked

What is Mode-S code 45CE47?
45CE47 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-SRG.
Where is Mode-S 45CE47 registered?
Mode-S code 45CE47 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45CE47 broadcasting right now?
Mode-S 45CE47 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45CE47, octal 21347107, decimal 4,574,791.
What flights does 45CE47 operate?
Mode-S 45CE47 has broadcast 20 distinct callsigns, including MUK6977, MUK6978, SRR6978, SRR6977, MUK6565.