Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4AB56E

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AB56E
Octal
22532556
Decimal
4,896,110
Country
SE
Tail
SE-MKN
Type
AT76
No current signal · last broadcast 1h ago
Flights observed
774
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4AB56E.

Country allocation

The ICAO 24-bit address 4AB56E 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
SAS1282 - 22 2026-07-11
SAS1281 - 22 2026-07-11
SAS1286 - 20 2026-07-05
SAS1285 - 20 2026-07-05
SAS1260 Scandinavian Airlines System 20 2026-06-25
SAS1259 - 20 2026-06-25
SAS652 - 19 2026-07-10
SAS651 - 19 2026-07-10
SAS55W - 17 2026-06-18
SAS48V - 17 2026-06-18
SAS1289 Scandinavian Airlines System 17 2026-07-04
SAS1280 - 17 2026-07-05
SAS1287 - 16 2026-06-18
SAS1648 - 15 2026-06-18
SAS1647 - 15 2026-06-18
SAS1288 - 15 2026-06-18
SAS756 - 13 2026-07-10
SAS649 - 12 2026-07-09
SAS51R - 12 2026-07-09
SAS1204 - 12 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SAS126 MMX → ARN Jul 14, 15:45 UTCJul 14, 17:05 UTC1h 20m
2026-07-14 SAS121 - Jul 14, 13:50 UTCJul 14, 15:00 UTC1h 10m
2026-07-14 SAS061 OSD → ARN Jul 14, 11:15 UTCJul 14, 12:20 UTC1h 5m
2026-07-14 SAS072 ARN → OSD Jul 14, 09:30 UTCJul 14, 10:35 UTC1h 5m
2026-07-13 SAS108 - Jul 13, 12:45 UTCJul 13, 14:05 UTC1h 20m
2026-07-13 SAS66T ARN → MMX Jul 13, 10:35 UTCJul 13, 11:50 UTC1h 15m
2026-07-12 SAS80A - Jul 12, 08:20 UTCJul 12, 09:20 UTC1h 0m
2026-07-12 SAS434 - Jul 12, 06:40 UTCJul 12, 07:15 UTC35m
2026-07-12 SAS1240 - Jul 12, 04:35 UTCJul 12, 05:01 UTC25m
2026-07-11 SAS1273 - Jul 11, 21:25 UTCJul 11, 21:50 UTC25m
2026-07-11 SAS758 - Jul 11, 19:00 UTCJul 11, 19:55 UTC55m
2026-07-11 SAS757 - Jul 11, 17:20 UTCJul 11, 18:25 UTC1h 5m
2026-07-11 SAS1397 - Jul 11, 15:25 UTCJul 11, 16:25 UTC1h 0m
2026-07-11 SAS1396 - Jul 11, 13:25 UTCJul 11, 14:35 UTC1h 10m
2026-07-11 SAS2987 KRS → CPH Jul 11, 11:30 UTCJul 11, 12:30 UTC1h 0m
2026-07-11 SAS2986 - Jul 11, 09:45 UTCJul 11, 10:50 UTC1h 5m
2026-07-11 SAS1282 - Jul 11, 08:01 UTCJul 11, 08:35 UTC35m
2026-07-11 SAS1281 - Jul 11, 06:50 UTCJul 11, 07:25 UTC35m
2026-07-11 SAS1228 - Jul 11, 04:10 UTCJul 11, 04:45 UTC35m
2026-07-10 SAS1225 CPH → AAL Jul 10, 21:25 UTCJul 10, 22:05 UTC40m
2026-07-10 SAS652 - Jul 10, 17:35 UTCJul 10, 18:20 UTC45m
2026-07-10 SAS651 - Jul 10, 16:00 UTCJul 10, 16:50 UTC50m
2026-07-10 SAS1869 - Jul 10, 12:15 UTCJul 10, 13:35 UTC1h 20m
2026-07-10 SAS1868 CPH → SVG Jul 10, 10:15 UTCJul 10, 11:35 UTC1h 20m
2026-07-10 SAS756 - Jul 10, 07:50 UTCJul 10, 08:50 UTC1h 0m
2026-07-10 SAS755 - Jul 10, 06:10 UTCJul 10, 07:10 UTC1h 0m
2026-07-10 SAS1240 - Jul 10, 04:30 UTCJul 10, 04:55 UTC25m
2026-07-09 SAS1273 - Jul 9, 21:20 UTCJul 9, 21:45 UTC25m
2026-07-09 SAS1204 - Jul 9, 17:00 UTCJul 9, 17:35 UTC35m
2026-07-09 SAS1203 CPH → AAL Jul 9, 15:40 UTCJul 9, 16:20 UTC40m
2026-07-09 SAS51R HAM → CPH Jul 9, 13:35 UTCJul 9, 14:25 UTC50m
2026-07-09 SAS649 CPH → HAM Jul 9, 12:05 UTCJul 9, 12:45 UTC40m
2026-07-09 SAS1248 - Jul 9, 10:35 UTCJul 9, 11:05 UTC30m
2026-07-09 SAS1247 - Jul 9, 09:25 UTCJul 9, 09:50 UTC25m
2026-07-09 SAS1282 BLL → CPH Jul 9, 08:00 UTCJul 9, 08:35 UTC35m
2026-07-09 SAS1281 CPH → BLL Jul 9, 06:35 UTCJul 9, 07:10 UTC35m
2026-07-09 SAS1228 - Jul 9, 04:10 UTCJul 9, 04:45 UTC35m
2026-07-08 SAS1225 - Jul 8, 21:05 UTCJul 8, 21:50 UTC45m
2026-07-08 SAS1204 AAL → CPH Jul 8, 17:00 UTCJul 8, 17:40 UTC40m
2026-07-08 SAS1203 - Jul 8, 15:35 UTCJul 8, 16:20 UTC45m
2026-07-08 SAS51R HAM → CPH Jul 8, 13:35 UTCJul 8, 14:30 UTC55m
2026-07-08 SAS649 - Jul 8, 11:55 UTCJul 8, 12:45 UTC50m
2026-07-08 SAS1248 - Jul 8, 10:35 UTCJul 8, 11:00 UTC25m
2026-07-08 SAS1247 - Jul 8, 09:25 UTCJul 8, 09:50 UTC25m
2026-07-08 SAS1282 - Jul 8, 08:10 UTCJul 8, 08:45 UTC35m
2026-07-08 SAS1281 - Jul 8, 06:50 UTCJul 8, 07:25 UTC35m
2026-07-08 SAS1228 AAL → CPH Jul 8, 04:10 UTCJul 8, 04:50 UTC40m
2026-07-07 SAS1225 - Jul 7, 21:15 UTCJul 7, 21:55 UTC40m
2026-07-07 SAS1204 - Jul 7, 16:55 UTCJul 7, 17:35 UTC40m
2026-07-07 SAS1203 CPH → AAL Jul 7, 15:35 UTCJul 7, 16:20 UTC45m

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

Mode-S 4AB56E frequently asked

What is Mode-S code 4AB56E?
4AB56E is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-MKN.
Where is Mode-S 4AB56E registered?
Mode-S code 4AB56E is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AB56E 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 4AB56E, octal 22532556, decimal 4,896,110.
What flights does 4AB56E operate?
Mode-S 4AB56E has broadcast 20 distinct callsigns, including SAS1282, SAS1281, SAS1286, SAS1285, SAS1260.