sensors Mode-S transponder

4AC9C6

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RNF · BOEING 737 MAX 8

Hex
4AC9C6
Octal
22544706
Decimal
4,901,318
Country
SE
Tail
SE-RNF
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
342
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4AC9C6.

Country allocation

The ICAO 24-bit address 4AC9C6 falls within the block assigned to Sweden (SE) by ICAO Annex 10, Volume III. Every aircraft registered in Sweden 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
BLX8HC TUIfly Nordic 7 2026-06-12
BLX70Y - 7 2026-07-15
BLX537 - 7 2026-06-26
BLX3BH TUIfly Nordic 7 2026-06-12
BLX261 - 7 2026-07-13
BLX233 - 7 2026-07-15
BLX1VM - 7 2026-07-12
BLX8BV - 6 2026-06-25
BLX535 - 6 2026-07-12
BLX464 TUIfly Nordic 6 2026-06-25
BLX463 - 6 2026-06-25
BLX435 TUIfly Nordic 6 2026-06-25
BLX386 TUIfly Nordic 6 2026-07-17
BLX385 TUIfly Nordic 6 2026-07-17
BLX155 TUIfly Nordic 6 2026-06-13
BLX152 - 6 2026-07-14
BLX151 - 6 2026-07-14
BLX131 TUIfly Nordic 6 2026-07-18
BLX9PT - 5 2026-07-16
BLX697 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 BLX131 GOT → PMI Jul 18, 05:10 UTCJul 18, 08:10 UTC3h 0m
2026-07-17 BLX362 LCA → GOT Jul 17, 21:05 UTCJul 18, 01:05 UTC4h 0m
2026-07-17 BLX361 GOT → LCA Jul 17, 15:40 UTCJul 17, 19:30 UTC3h 50m
2026-07-17 BLX386 RHO → GOT Jul 17, 10:15 UTCJul 17, 13:50 UTC3h 35m
2026-07-17 BLX385 GOT → RHO Jul 17, 05:15 UTCJul 17, 08:30 UTC3h 15m
2026-07-16 BLX502 MAH → GOT Jul 16, 20:25 UTCJul 16, 23:44 UTC3h 20m
2026-07-16 BLX501 - Jul 16, 15:45 UTCJul 16, 19:05 UTC3h 20m
2026-07-16 BLX9PT - Jul 16, 10:59 UTCJul 16, 14:15 UTC3h 15m
2026-07-16 BLX397 - Jul 16, 06:20 UTCJul 16, 09:35 UTC3h 15m
2026-07-15 BLX70Y - Jul 15, 13:15 UTCJul 15, 17:55 UTC4h 40m
2026-07-15 BLX233 - Jul 15, 06:25 UTCJul 15, 11:25 UTC5h 0m
2026-07-14 BLX152 - Jul 14, 20:05 UTCJul 14, 23:05 UTC2h 59m
2026-07-14 BLX151 - Jul 14, 15:50 UTCJul 14, 18:40 UTC2h 50m
2026-07-14 BLX466 - Jul 14, 10:00 UTCJul 14, 13:15 UTC3h 15m
2026-07-14 BLX465 - Jul 14, 05:15 UTCJul 14, 08:15 UTC3h 0m
2026-07-13 BLX1LM - Jul 13, 10:55 UTCJul 13, 14:55 UTC4h 0m
2026-07-13 BLX261 - Jul 13, 05:25 UTCJul 13, 09:20 UTC3h 55m
2026-07-12 BLX536 - Jul 12, 21:25 UTCJul 13, 00:50 UTC3h 25m
2026-07-12 BLX535 - Jul 12, 16:25 UTCJul 12, 20:01 UTC3h 35m
2026-07-12 BLX1VM - Jul 12, 10:40 UTCJul 12, 14:05 UTC3h 25m
2026-07-12 BLX697 - Jul 12, 05:25 UTCJul 12, 08:45 UTC3h 20m
2026-07-11 BLX1FA RHO → GOT Jul 11, 19:55 UTCJul 11, 23:25 UTC3h 30m
2026-07-11 BLX383 - Jul 11, 14:55 UTCJul 11, 18:15 UTC3h 20m
2026-07-11 BLX132 - Jul 11, 09:40 UTCJul 11, 12:35 UTC2h 55m
2026-07-11 BLX131 - Jul 11, 04:40 UTCJul 11, 07:25 UTC2h 45m
2026-07-10 BLX362 - Jul 10, 21:10 UTCJul 11, 01:15 UTC4h 5m
2026-07-10 BLX361 - Jul 10, 15:50 UTCJul 10, 19:25 UTC3h 35m
2026-07-10 BLX386 - Jul 10, 10:30 UTCJul 10, 14:10 UTC3h 40m
2026-07-10 BLX385 - Jul 10, 05:35 UTCJul 10, 08:45 UTC3h 10m
2026-07-09 BLX502 KGS → GOT Jul 9, 20:30 UTCJul 10, 00:00 UTC3h 30m
2026-07-09 BLX501 - Jul 9, 15:50 UTCJul 9, 18:50 UTC3h 0m
2026-07-09 BLX9PT - Jul 9, 10:40 UTCJul 9, 14:20 UTC3h 40m
2026-07-09 BLX397 ARN → CHQ Jul 9, 06:10 UTCJul 9, 09:05 UTC2h 55m
2026-07-08 BLX70Y - Jul 8, 13:15 UTCJul 8, 18:05 UTC4h 50m
2026-07-08 BLX233 - Jul 8, 06:15 UTCJul 8, 11:10 UTC4h 55m
2026-07-07 BLX152 - Jul 7, 20:10 UTCJul 7, 23:15 UTC3h 5m
2026-07-07 BLX151 - Jul 7, 15:35 UTCJul 7, 18:15 UTC2h 40m
2026-07-07 BLX466 - Jul 7, 10:25 UTCJul 7, 13:50 UTC3h 25m
2026-07-07 BLX465 GOT → SMI Jul 7, 05:10 UTCJul 7, 08:10 UTC3h 0m
2026-07-06 BLX1LM - Jul 6, 11:15 UTCJul 6, 15:30 UTC4h 15m
2026-07-06 BLX261 - Jul 6, 05:20 UTCJul 6, 09:05 UTC3h 45m
2026-07-05 BLX536 - Jul 5, 21:25 UTCJul 6, 01:10 UTC3h 45m
2026-07-05 BLX535 - Jul 5, 16:25 UTCJul 5, 19:40 UTC3h 15m
2026-07-05 BLX1VM - Jul 5, 11:05 UTCJul 5, 14:40 UTC3h 35m
2026-07-05 BLX697 - Jul 5, 06:05 UTCJul 5, 09:30 UTC3h 25m
2026-07-04 BLX1FA - Jul 4, 19:45 UTCJul 4, 23:25 UTC3h 40m
2026-07-04 BLX383 - Jul 4, 14:45 UTCJul 4, 17:55 UTC3h 10m
2026-07-04 BLX132 - Jul 4, 09:35 UTCJul 4, 12:30 UTC2h 55m
2026-07-04 BLX131 - Jul 4, 04:40 UTCJul 4, 07:35 UTC2h 55m
2026-07-03 BLX362 - Jul 3, 21:20 UTCJul 4, 01:25 UTC4h 5m

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 SE-RNF page for operator, model, and routing details .

Mode-S 4AC9C6 frequently asked

What is Mode-S code 4AC9C6?
4AC9C6 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RNF.
Where is Mode-S 4AC9C6 registered?
Mode-S code 4AC9C6 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9C6 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9C6, octal 22544706, decimal 4,901,318.
What flights does 4AC9C6 operate?
Mode-S 4AC9C6 has broadcast 20 distinct callsigns, including BLX8HC, BLX70Y, BLX537, BLX3BH, BLX261.