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sensors Mode-S transponder

4AB56B

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-MKK · ATR-72-600

Hex
4AB56B
Octal
22532553
Decimal
4,896,107
Country
SE
Tail
SE-MKK
Type
AT76
Broadcasting now · callsign SAS035 · 12,750 ft
Flights observed
483
Distinct callsigns
20
Country
SE
Last broadcast
Jul 25, 14:20 UTC

Current position

4AB56B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AB56B 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
SAS083 Scandinavian Airlines System 13 2026-07-22
SAS084 Scandinavian Airlines System 11 2026-07-22
SAS196 - 10 2026-07-13
SAS195 - 10 2026-07-13
SAS086 Scandinavian Airlines System 10 2026-07-24
SAS45H Scandinavian Airlines System 9 2026-07-24
SAS094 Scandinavian Airlines System 9 2026-07-24
SAS093 Scandinavian Airlines System 9 2026-07-24
SAS077 Scandinavian Airlines System 9 2026-07-24
SAS85P - 8 2026-07-12
SAS81C Scandinavian Airlines System 8 2026-07-23
SAS69N Scandinavian Airlines System 8 2026-07-23
SAS4225 - 8 2026-07-13
SAS4224 - 8 2026-07-13
SAS2720 Scandinavian Airlines System 8 2026-06-16
SAS096 - 8 2026-07-12
SAS085 Scandinavian Airlines System 8 2026-07-23
SAS705 - 7 2026-07-04
SAS702 - 7 2026-07-04
SAS4231 - 7 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SAS882 OSL → ARN Jul 25, 13:15 UTCJul 25, 14:15 UTC1h 0m
2026-07-25 SAS885 ARN → OSL Jul 25, 11:15 UTCJul 25, 12:20 UTC1h 5m
2026-07-24 SAS126 MMX → ARN Jul 24, 16:20 UTCJul 24, 17:35 UTC1h 15m
2026-07-24 SAS121 ARN → MMX Jul 24, 14:05 UTCJul 24, 15:25 UTC1h 20m
2026-07-24 SAS094 VBY → ARN Jul 24, 11:35 UTCJul 24, 12:10 UTC35m
2026-07-24 SAS093 ARN → VBY Jul 24, 10:10 UTCJul 24, 10:45 UTC35m
2026-07-24 SAS45H VBY → ARN Jul 24, 07:35 UTCJul 24, 08:05 UTC30m
2026-07-24 SAS077 ARN → VBY Jul 24, 06:10 UTCJul 24, 06:45 UTC35m
2026-07-24 SAS086 VBY → ARN Jul 24, 04:35 UTCJul 24, 05:15 UTC40m
2026-07-23 SAS085 ARN → VBY Jul 23, 18:45 UTCJul 23, 19:15 UTC30m
2026-07-23 SAS725 HEL → ARN Jul 23, 16:50 UTCJul 23, 17:50 UTC1h 0m
2026-07-23 SAS722 ARN → HEL Jul 23, 15:15 UTCJul 23, 16:15 UTC1h 0m
2026-07-23 SAS108 MMX → ARN Jul 23, 12:35 UTCJul 23, 13:50 UTC1h 15m
2026-07-23 SAS66T ARN → MMX Jul 23, 10:30 UTCJul 23, 11:40 UTC1h 10m
2026-07-23 SAS81C SFT → ARN Jul 23, 08:15 UTCJul 23, 09:25 UTC1h 10m
2026-07-23 SAS69N ARN → SFT Jul 23, 05:55 UTCJul 23, 07:10 UTC1h 15m
2026-07-22 SAS084 VBY → ARN Jul 22, 18:45 UTCJul 22, 19:20 UTC35m
2026-07-22 SAS083 ARN → VBY Jul 22, 17:35 UTCJul 22, 18:05 UTC30m
2026-07-22 SAS035 UME → ARN Jul 22, 15:10 UTCJul 22, 16:05 UTC55m
2026-07-22 SAS034 ARN → UME Jul 22, 13:05 UTCJul 22, 13:55 UTC50m
2026-07-21 SAS029 - Jul 21, 19:00 UTCJul 21, 19:55 UTC55m
2026-07-21 SAS028 ARN → UME Jul 21, 17:10 UTCJul 21, 17:50 UTC40m
2026-07-21 SAS035 UME → ARN Jul 21, 14:45 UTCJul 21, 15:45 UTC1h 0m
2026-07-21 SAS034 ARN → UME Jul 21, 12:50 UTCJul 21, 13:50 UTC1h 0m
2026-07-21 SAS80A GOT → ARN Jul 21, 08:20 UTCJul 21, 09:25 UTC1h 5m
2026-07-21 SAS434 CPH → GOT Jul 21, 06:45 UTCJul 21, 07:25 UTC40m
2026-07-21 SAS1228 AAL → CPH Jul 21, 04:15 UTCJul 21, 04:55 UTC40m
2026-07-20 SAS1225 CPH → AAL Jul 20, 21:15 UTCJul 20, 21:55 UTC40m
2026-07-20 SAS652 - Jul 20, 17:45 UTCJul 20, 18:25 UTC40m
2026-07-20 SAS651 - Jul 20, 16:15 UTCJul 20, 17:00 UTC45m
2026-07-20 SAS2987 KRS → CPH Jul 20, 13:20 UTCJul 20, 14:20 UTC1h 0m
2026-07-20 SAS2986 CPH → KRS Jul 20, 11:25 UTCJul 20, 12:25 UTC1h 0m
2026-07-20 SAS756 GDN → CPH Jul 20, 08:00 UTCJul 20, 09:00 UTC1h 0m
2026-07-20 SAS755 CPH → GDN Jul 20, 06:15 UTCJul 20, 07:15 UTC1h 0m
2026-07-20 SAS1240 AAR → CPH Jul 20, 04:40 UTCJul 20, 05:10 UTC30m
2026-07-19 SAS1273 CPH → AAR Jul 19, 21:25 UTCJul 19, 21:50 UTC25m
2026-07-19 SAS1397 TRF → CPH Jul 19, 16:50 UTCJul 19, 17:55 UTC1h 5m
2026-07-19 SAS1396 - Jul 19, 14:55 UTCJul 19, 16:00 UTC1h 5m
2026-07-19 SAS2987 KRS → CPH Jul 19, 12:55 UTCJul 19, 14:00 UTC1h 5m
2026-07-19 SAS2986 CPH → KRS Jul 19, 11:15 UTCJul 19, 12:15 UTC1h 0m
2026-07-19 SAS756 - Jul 19, 07:55 UTCJul 19, 08:55 UTC1h 0m
2026-07-19 SAS755 - Jul 19, 06:10 UTCJul 19, 07:10 UTC1h 0m
2026-07-19 SAS1240 - Jul 19, 04:35 UTCJul 19, 05:00 UTC25m
2026-07-18 SAS1273 CPH → AAR Jul 18, 21:25 UTCJul 18, 21:50 UTC25m
2026-07-18 SAS758 GDN → CPH Jul 18, 19:00 UTCJul 18, 20:00 UTC1h 0m
2026-07-18 SAS757 - Jul 18, 17:15 UTCJul 18, 18:15 UTC1h 0m
2026-07-18 SAS1397 TRF → CPH Jul 18, 15:10 UTCJul 18, 16:15 UTC1h 5m
2026-07-18 SAS1396 - Jul 18, 13:25 UTCJul 18, 14:30 UTC1h 5m
2026-07-18 SAS2987 KRS → CPH Jul 18, 11:25 UTCJul 18, 12:25 UTC1h 0m
2026-07-18 SAS2986 CPH → KRS Jul 18, 09:45 UTCJul 18, 10:45 UTC1h 0m

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

Mode-S 4AB56B frequently asked

What is Mode-S code 4AB56B?
4AB56B is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-MKK.
Where is Mode-S 4AB56B registered?
Mode-S code 4AB56B is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AB56B broadcasting right now?
Yes. Mode-S 4AB56B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AB56B, octal 22532553, decimal 4,896,107.
What flights does 4AB56B operate?
Mode-S 4AB56B has broadcast 20 distinct callsigns, including SAS083, SAS084, SAS196, SAS195, SAS086.