Apparatus

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sensors Mode-S transponder

4AC8DA

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RFZ · BOEING 787-9 Dreamliner

Hex
4AC8DA
Octal
22544332
Decimal
4,901,082
Country
SE
Tail
SE-RFZ
Type
B789
No current signal · last broadcast 8h ago
Flights observed
87
Distinct callsigns
20
Country
SE
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 4AC8DA.

Country allocation

The ICAO 24-bit address 4AC8DA 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
TOM9CN TUI Airways 7 2026-06-17
TOM8DT TUI Airways 7 2026-06-17
TOM57K TUI Airways 7 2026-06-18
TOM46V TUI Airways 7 2026-06-17
TOM2CK TUI Airways 7 2026-06-17
TOM37V TUI Airways 6 2026-06-18
TOM9PL - 5 2026-06-18
TOM52W TUI Airways 5 2026-06-18
TOM169 TUI Airways 5 2026-06-15
TOM157 TUI Airways 5 2026-06-19
TOM134 TUI Airways 5 2026-06-13
TOM168 TUI Airways 4 2026-06-08
TOM118 TUI Airways 4 2026-06-16
TOM8DL - 3 2026-06-19
TOM119 TUI Airways 3 2026-06-09
TOM21X TUI Airways 2 2026-05-14
TOM1FM - 2 2026-05-15
TOM9412 - 1 2026-06-20
TOM412 - 1 2026-06-20
BLX928P TUIfly Nordic 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-20 TOM412 - Jun 20, 11:09 UTCJun 20, 18:29 UTC7h 20m
2026-06-20 TOM9412 - Jun 20, 08:14 UTCJun 20, 08:55 UTC40m
2026-06-19 TOM157 PUJ → MAN Jun 19, 10:35 UTCJun 20, 06:10 UTC19h 35m
2026-06-19 TOM8DL MAN → MAN Jun 19, 10:29 UTCJun 20, 06:10 UTC19h 40m
2026-06-18 TOM9PL RHO → MAN Jun 18, 23:00 UTCJun 19, 02:50 UTC3h 49m
2026-06-18 TOM52W HER → STN Jun 18, 17:55 UTCJun 18, 21:30 UTC3h 35m
2026-06-18 TOM57K BRS → KGS Jun 18, 12:35 UTCJun 18, 15:55 UTC3h 20m
2026-06-18 TOM37V ZTH → NCL Jun 18, 06:55 UTCJun 18, 10:35 UTC3h 40m
2026-06-17 TOM9CN STN → HER Jun 17, 22:05 UTCJun 18, 01:50 UTC3h 45m
2026-06-17 TOM2CK MAN → TFS Jun 17, 17:00 UTCJun 17, 20:25 UTC3h 25m
2026-06-17 TOM8DT LGW → LCA Jun 17, 12:30 UTCJun 17, 14:40 UTC2h 10m
2026-06-17 TOM46V MAN → PMI Jun 17, 07:20 UTCJun 17, 09:30 UTC2h 10m
2026-06-16 TOM118 MAN → PUJ Jun 16, 09:40 UTCJun 17, 04:25 UTC18h 46m
2026-06-15 TOM169 CUN → MAN Jun 15, 12:35 UTCJun 16, 06:54 UTC18h 20m
2026-06-15 TOM169 CUN → MAN Jun 15, 12:19 UTCJun 16, 06:54 UTC18h 35m
2026-06-13 TOM134 MAN → VRA Jun 13, 10:35 UTCJun 14, 05:05 UTC18h 30m
2026-06-13 TOM134 MAN → VRA Jun 13, 10:20 UTCJun 14, 05:05 UTC18h 46m
2026-06-12 TOM157 PUJ → MAN Jun 12, 10:35 UTCJun 13, 05:45 UTC19h 9m
2026-06-12 TOM157 PUJ → MAN Jun 12, 10:00 UTCJun 13, 05:45 UTC19h 44m
2026-06-11 TOM9PL RHO → MAN Jun 11, 23:35 UTCJun 12, 03:25 UTC3h 51m
2026-06-11 TOM52W HER → STN Jun 11, 18:40 UTCJun 11, 22:05 UTC3h 25m
2026-06-11 TOM57K BRS → KGS Jun 11, 12:25 UTCJun 11, 16:15 UTC3h 50m
2026-06-11 TOM37V ZTH → NCL Jun 11, 07:00 UTCJun 11, 10:35 UTC3h 35m
2026-06-10 TOM9CN STN → HER Jun 10, 21:45 UTCJun 11, 01:35 UTC3h 50m
2026-06-10 TOM2CK MAN → TFS Jun 10, 16:25 UTCJun 10, 19:55 UTC3h 30m
2026-06-10 TOM8DT LGW → LCA Jun 10, 12:15 UTCJun 10, 14:25 UTC2h 10m
2026-06-10 TOM46V MAN → PMI Jun 10, 07:55 UTCJun 10, 10:10 UTC2h 15m
2026-06-09 TOM119 PUJ → MAN Jun 9, 10:35 UTCJun 10, 04:45 UTC18h 10m
2026-06-09 TOM119 PUJ → MAN Jun 9, 09:50 UTCJun 10, 04:45 UTC18h 55m
2026-06-08 TOM169 CUN → MAN Jun 8, 12:35 UTCJun 9, 07:15 UTC18h 40m
2026-06-08 TOM168 MAN → CUN Jun 8, 12:25 UTCJun 9, 07:15 UTC18h 50m
2026-06-06 TOM134 MAN → VRA Jun 6, 10:25 UTCJun 7, 04:25 UTC18h 0m
2026-06-05 TOM8DL MAN → MAN Jun 5, 11:05 UTCJun 6, 05:00 UTC17h 55m
2026-06-04 TOM9PL RHO → MAN Jun 4, 23:35 UTCJun 5, 03:25 UTC3h 50m
2026-06-04 TOM52W HER → STN Jun 4, 18:20 UTCJun 4, 21:50 UTC3h 30m
2026-06-04 TOM57K BRS → KGS Jun 4, 12:45 UTCJun 4, 16:20 UTC3h 35m
2026-06-04 TOM37V ZTH → NCL Jun 4, 10:15 UTCJun 4, 10:30 UTC15m
2026-06-04 TOM37V ZTH → NCL Jun 4, 06:55 UTCJun 4, 09:30 UTC2h 35m
2026-06-03 TOM9CN STN → HER Jun 3, 21:20 UTCJun 4, 01:00 UTC3h 40m
2026-06-03 TOM2CK MAN → TFS Jun 3, 16:10 UTCJun 3, 19:35 UTC3h 25m
2026-06-03 TOM8DT LGW → LCA Jun 3, 11:50 UTCJun 3, 14:00 UTC2h 10m
2026-06-03 TOM46V MAN → PMI Jun 3, 07:25 UTCJun 3, 09:35 UTC2h 10m
2026-06-02 TOM118 MAN → PUJ Jun 2, 09:55 UTCJun 3, 04:10 UTC18h 15m
2026-06-02 TOM169 CUN → MAN Jun 2, 00:25 UTCJun 2, 07:30 UTC7h 5m
2026-06-01 TOM168 MAN → CUN Jun 1, 12:40 UTCJun 1, 20:45 UTC8h 5m
2026-05-30 TOM134 MAN → VRA May 30, 10:25 UTCMay 30, 22:00 UTC11h 35m
2026-05-29 TOM157 PUJ → MAN May 29, 10:35 UTCMay 30, 04:45 UTC18h 10m
2026-05-29 TOM8DL MAN → MAN May 29, 10:05 UTCMay 30, 04:45 UTC18h 40m
2026-05-28 TOM9PL RHO → MAN May 28, 23:10 UTCMay 29, 03:05 UTC3h 55m
2026-05-28 TOM52W HER → STN May 28, 18:00 UTCMay 28, 21:40 UTC3h 40m

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

Mode-S 4AC8DA frequently asked

What is Mode-S code 4AC8DA?
4AC8DA is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RFZ.
Where is Mode-S 4AC8DA registered?
Mode-S code 4AC8DA is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC8DA broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC8DA, octal 22544332, decimal 4,901,082.
What flights does 4AC8DA operate?
Mode-S 4AC8DA has broadcast 20 distinct callsigns, including TOM9CN, TOM8DT, TOM57K, TOM46V, TOM2CK.