Apparatus

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sensors Mode-S transponder

4AB564

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AB564
Octal
22532544
Decimal
4,896,100
Country
SE
Tail
SE-MKD
Type
AT76
Broadcasting now · callsign SAS758 · 1,675 ft
Flights observed
359
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Current position

4AB564 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AB564 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
SAS757 - 14 2026-06-30
SAS758 Scandinavian Airlines System 12 2026-06-27
SAS1396 - 11 2026-06-28
SAS1397 - 10 2026-06-28
SAS756 - 9 2026-06-28
SAS755 - 9 2026-06-28
SAS1756 - 9 2026-06-18
SAS1755 - 9 2026-06-18
SAS1282 - 9 2026-06-27
SAS652 Scandinavian Airlines System 8 2026-06-24
SAS651 - 8 2026-06-24
SAS1281 - 8 2026-06-27
SAS1206 - 8 2026-06-30
SAS1205 - 8 2026-06-30
SAS55W Scandinavian Airlines System 7 2026-06-09
SAS48V Scandinavian Airlines System 7 2026-06-09
SAS1289 Scandinavian Airlines System 7 2026-06-21
SAS1286 - 7 2026-06-27
SAS1285 - 7 2026-06-27
SAS1280 - 7 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-30 SAS757 - Jun 30, 16:25 UTCJun 30, 17:00 UTC35m
2026-06-30 SAS44T - Jun 30, 13:55 UTCJun 30, 15:00 UTC1h 5m
2026-06-30 SAS75G - Jun 30, 12:05 UTCJun 30, 13:00 UTC55m
2026-06-30 SAS1208 - Jun 30, 10:30 UTCJun 30, 11:10 UTC40m
2026-06-30 SAS1207 - Jun 30, 09:15 UTCJun 30, 09:50 UTC35m
2026-06-30 SAS1206 - Jun 30, 07:40 UTCJun 30, 08:20 UTC40m
2026-06-30 SAS1205 CPH → AAL Jun 30, 06:15 UTCJun 30, 06:50 UTC35m
2026-06-30 SAS1240 - Jun 30, 04:30 UTCJun 30, 04:55 UTC25m
2026-06-29 SAS1273 - Jun 29, 21:09 UTCJun 29, 21:34 UTC25m
2026-06-29 SAS1643 - Jun 29, 14:04 UTCJun 29, 15:49 UTC1h 45m
2026-06-29 SAS1642 - Jun 29, 11:45 UTCJun 29, 13:19 UTC1h 35m
2026-06-29 SAS768 PRG → CPH Jun 29, 09:25 UTCJun 29, 10:50 UTC1h 25m
2026-06-29 SAS767 - Jun 29, 06:44 UTCJun 29, 08:24 UTC1h 40m
2026-06-28 SAS1397 - Jun 28, 17:04 UTCJun 28, 18:05 UTC1h 0m
2026-06-28 SAS1396 - Jun 28, 15:14 UTCJun 28, 16:25 UTC1h 10m
2026-06-28 SAS2987 KRS → CPH Jun 28, 13:29 UTCJun 28, 14:30 UTC1h 0m
2026-06-28 SAS2986 - Jun 28, 11:50 UTCJun 28, 12:50 UTC1h 0m
2026-06-28 SAS756 - Jun 28, 09:25 UTCJun 28, 10:24 UTC1h 0m
2026-06-28 SAS755 - Jun 28, 07:44 UTCJun 28, 08:44 UTC1h 0m
2026-06-28 SAS1240 - Jun 28, 04:40 UTCJun 28, 05:24 UTC45m
2026-06-27 SAS1273 - Jun 27, 21:15 UTCJun 27, 21:40 UTC25m
2026-06-27 SAS758 GDN → CPH Jun 27, 19:05 UTCJun 27, 20:04 UTC1h 0m
2026-06-27 SAS757 - Jun 27, 17:29 UTCJun 27, 18:24 UTC55m
2026-06-27 SAS1397 - Jun 27, 15:45 UTCJun 27, 16:44 UTC1h 0m
2026-06-27 SAS1396 - Jun 27, 13:55 UTCJun 27, 15:00 UTC1h 5m
2026-06-27 SAS1286 BLL → CPH Jun 27, 12:09 UTCJun 27, 12:50 UTC40m
2026-06-27 SAS1285 - Jun 27, 10:50 UTCJun 27, 11:25 UTC35m
2026-06-27 SAS1282 - Jun 27, 07:55 UTCJun 27, 08:29 UTC35m
2026-06-27 SAS1281 - Jun 27, 06:40 UTCJun 27, 07:15 UTC35m
2026-06-26 SAS758 GDN → CPH Jun 26, 18:29 UTCJun 26, 19:30 UTC1h 0m
2026-06-26 SAS757 - Jun 26, 16:24 UTCJun 26, 17:19 UTC55m
2026-06-26 SAS1214 - Jun 26, 14:25 UTCJun 26, 15:05 UTC40m
2026-06-26 SAS1213 - Jun 26, 12:59 UTCJun 26, 13:34 UTC35m
2026-06-26 SAS1208 AAL → CPH Jun 26, 10:30 UTCJun 26, 11:09 UTC40m
2026-06-26 SAS1207 - Jun 26, 09:05 UTCJun 26, 09:45 UTC40m
2026-06-26 SAS1206 - Jun 26, 07:35 UTCJun 26, 08:15 UTC40m
2026-06-26 SAS1205 - Jun 26, 06:15 UTCJun 26, 06:54 UTC40m
2026-06-25 SAS1204 AAL → CPH Jun 25, 17:09 UTCJun 25, 17:44 UTC35m
2026-06-25 SAS1203 - Jun 25, 15:50 UTCJun 25, 16:29 UTC40m
2026-06-25 SAS51R - Jun 25, 14:09 UTCJun 25, 14:50 UTC40m
2026-06-25 SAS649 CPH → HAM Jun 25, 12:25 UTCJun 25, 13:14 UTC50m
2026-06-25 SAS1248 AAR → CPH Jun 25, 10:55 UTCJun 25, 11:19 UTC25m
2026-06-25 SAS1247 - Jun 25, 09:40 UTCJun 25, 10:04 UTC25m
2026-06-25 SAS1282 - Jun 25, 08:09 UTCJun 25, 08:45 UTC35m
2026-06-25 SAS1281 - Jun 25, 06:50 UTCJun 25, 07:25 UTC35m
2026-06-25 SAS1228 - Jun 25, 04:10 UTCJun 25, 04:45 UTC35m
2026-06-24 SAS1225 - Jun 24, 21:19 UTCJun 24, 22:00 UTC40m
2026-06-24 SAS652 HAM → CPH Jun 24, 17:55 UTCJun 24, 18:39 UTC45m
2026-06-24 SAS651 - Jun 24, 16:14 UTCJun 24, 17:10 UTC55m
2026-06-24 SAS2987 KRS → CPH Jun 24, 13:05 UTCJun 24, 14:04 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-MKD page for operator, model, and routing details .

Mode-S 4AB564 frequently asked

What is Mode-S code 4AB564?
4AB564 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-MKD.
Where is Mode-S 4AB564 registered?
Mode-S code 4AB564 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AB564 broadcasting right now?
Yes. Mode-S 4AB564 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AB564, octal 22532544, decimal 4,896,100.
What flights does 4AB564 operate?
Mode-S 4AB564 has broadcast 20 distinct callsigns, including SAS757, SAS758, SAS1396, SAS1397, SAS756.