Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C228

ICAO 24-bit transponder address · allocated to Korea, South

Currently assigned to HL8228 · AIRBUS A-330-200

Hex
71C228
Octal
34341050
Decimal
7,455,272
Country
KR
Tail
HL8228
Type
A332
No current signal · last broadcast 2h ago
Flights observed
55
Distinct callsigns
8
Country
KR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 71C228.

Country allocation

The ICAO 24-bit address 71C228 falls within the block assigned to Korea, South (KR) by ICAO Annex 10, Volume III. Every aircraft registered in Korea, South 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 8 distinct

Callsign Airline Flights Last seen
TWB405 Tway Airlines 15 2026-05-29
TWB406 Tway Airlines 14 2026-05-29
TWB403 Tway Airlines 6 2026-05-18
TWB407 Tway Airlines 5 2026-05-11
TWB404 Tway Airlines 5 2026-05-19
TWB408 Tway Airlines 4 2026-05-11
TWB402 Tway Airlines 3 2026-05-24
TWB401 Tway Airlines 3 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TWB406 FCO → ICN May 29, 19:35 UTCMay 29, 23:00 UTC3h 25m
2026-05-29 TWB405 ICN → FCO May 29, 05:20 UTCMay 29, 17:15 UTC11h 55m
2026-05-29 TWB405 ICN → FCO May 29, 04:00 UTCMay 29, 04:15 UTC15m
2026-05-28 TWB406 FCO → ICN May 28, 06:00 UTCMay 28, 06:30 UTC30m
2026-05-27 TWB406 FCO → ICN May 27, 19:40 UTCMay 28, 05:20 UTC9h 40m
2026-05-27 TWB405 ICN → FCO May 27, 05:40 UTCMay 27, 17:20 UTC11h 40m
2026-05-27 TWB405 ICN → FCO May 27, 04:19 UTCMay 27, 04:39 UTC20m
2026-05-26 TWB406 FCO → ICN May 26, 06:54 UTCMay 26, 07:05 UTC10m
2026-05-26 TWB406 FCO → ICN May 26, 06:34 UTCMay 26, 06:49 UTC15m
2026-05-25 TWB406 FCO → ICN May 25, 19:35 UTCMay 26, 05:45 UTC10h 10m
2026-05-25 TWB405 ICN → FCO May 25, 04:00 UTCMay 25, 16:35 UTC12h 35m
2026-05-24 TWB402 CDG → ICN May 24, 06:05 UTCMay 24, 06:30 UTC25m
2026-05-23 TWB402 CDG → ICN May 23, 18:40 UTCMay 23, 21:30 UTC2h 50m
2026-05-23 TWB401 ICN → CDG May 23, 01:30 UTCMay 23, 14:15 UTC12h 45m
2026-05-19 TWB404 FRA → ICN May 19, 04:15 UTCMay 19, 04:40 UTC25m
2026-05-18 TWB404 FRA → ICN May 18, 17:05 UTCMay 19, 03:20 UTC10h 14m
2026-05-18 TWB403 ICN → FRA May 18, 02:30 UTCMay 18, 14:30 UTC12h 0m
2026-05-18 TWB403 ICN → FRA May 18, 01:15 UTCMay 18, 01:40 UTC25m
2026-05-16 TWB406 FCO → ICN May 16, 06:31 UTCMay 16, 06:50 UTC20m
2026-05-15 TWB406 FCO → ICN May 15, 19:40 UTCMay 15, 21:25 UTC1h 45m
2026-05-15 TWB405 ICN → FCO May 15, 09:30 UTCMay 15, 17:10 UTC7h 39m
2026-05-15 TWB405 ICN → FCO May 15, 04:05 UTCMay 15, 04:20 UTC15m
2026-05-11 TWB408 BCN → ICN May 11, 19:20 UTCMay 11, 21:55 UTC2h 35m
2026-05-11 TWB407 ICN → BCN May 11, 11:00 UTCMay 11, 17:00 UTC6h 0m
2026-05-11 TWB407 ICN → BCN May 11, 02:40 UTCMay 11, 02:55 UTC15m
2026-05-09 TWB402 CDG → ICN May 9, 18:50 UTCMay 9, 21:25 UTC2h 35m
2026-05-09 TWB401 ICN → CDG May 9, 03:00 UTCMay 9, 15:45 UTC12h 45m
2026-05-09 TWB401 ICN → CDG May 9, 01:40 UTCMay 9, 01:55 UTC15m
2026-05-04 TWB404 FRA → ICN May 4, 17:10 UTCMay 5, 03:35 UTC10h 26m
2026-05-04 TWB403 ICN → FRA May 4, 02:25 UTCMay 4, 14:15 UTC11h 50m
2026-05-04 TWB403 ICN → FRA May 4, 01:10 UTCMay 4, 01:20 UTC10m
2026-05-02 TWB408 BCN → ICN May 2, 19:35 UTCMay 3, 06:35 UTC10h 59m
2026-05-02 TWB407 ICN → BCN May 2, 02:35 UTCMay 2, 16:40 UTC14h 5m
2026-04-29 TWB404 FRA → ICN Apr 29, 04:25 UTCApr 29, 04:39 UTC15m
2026-04-28 TWB404 FRA → ICN Apr 28, 17:10 UTCApr 29, 03:10 UTC10h 0m
2026-04-28 TWB403 ICN → FRA Apr 28, 10:35 UTCApr 28, 15:20 UTC4h 45m
2026-04-28 TWB403 ICN → FRA Apr 28, 01:20 UTCApr 28, 01:35 UTC15m
2026-04-26 TWB406 FCO → ICN Apr 26, 19:40 UTCApr 26, 21:30 UTC1h 50m
2026-04-26 TWB405 ICN → FCO Apr 26, 09:35 UTCApr 26, 17:15 UTC7h 40m
2026-04-26 TWB405 ICN → FCO Apr 26, 04:00 UTCApr 26, 04:15 UTC15m
2026-04-25 TWB408 BCN → ICN Apr 25, 07:20 UTCApr 25, 07:40 UTC20m
2026-04-24 TWB408 BCN → ICN Apr 24, 19:40 UTCApr 25, 06:30 UTC10h 50m
2026-04-24 TWB407 ICN → BCN Apr 24, 08:00 UTCApr 24, 16:25 UTC8h 25m
2026-04-24 TWB407 ICN → BCN Apr 24, 02:35 UTCApr 24, 02:50 UTC15m
2026-04-17 TWB406 FCO → ICN Apr 17, 21:25 UTCApr 17, 23:10 UTC1h 45m
2026-04-17 TWB406 FCO → ICN Apr 17, 19:40 UTCApr 17, 21:20 UTC1h 40m
2026-04-17 TWB405 ICN → FCO Apr 17, 13:20 UTCApr 17, 14:20 UTC1h 0m
2026-04-17 TWB405 ICN → FCO Apr 17, 13:00 UTCApr 17, 13:15 UTC15m
2026-04-17 TWB405 ICN → FCO Apr 17, 04:10 UTCApr 17, 04:25 UTC15m
2026-04-14 TWB406 FCO → ICN Apr 14, 06:30 UTCApr 14, 06:45 UTC15m

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 HL8228 page for operator, model, and routing details .

Mode-S 71C228 frequently asked

What is Mode-S code 71C228?
71C228 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8228.
Where is Mode-S 71C228 registered?
Mode-S code 71C228 is allocated to Korea, South (KR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 71C228 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C228, octal 34341050, decimal 7,455,272.
What flights does 71C228 operate?
Mode-S 71C228 has broadcast 8 distinct callsigns, including TWB405, TWB406, TWB403, TWB407, TWB404.