Apparatus

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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 Jul 26, 20:55 UTC
Flights observed
107
Distinct callsigns
8
Country
KR
Last broadcast
Jul 26, 20:55 UTC

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
TWB406 Tway Airlines 36 2026-07-24
TWB405 Tway Airlines 34 2026-07-24
TWB403 Tway Airlines 12 2026-07-26
TWB404 Tway Airlines 10 2026-07-26
TWB407 Tway Airlines 5 2026-05-11
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
2026-07-26 TWB404 FRA → ICN Jul 26, 17:10 UTCJul 26, 20:55 UTC3h 45m
2026-07-26 TWB403 ICN → FRA Jul 26, 02:30 UTCJul 26, 11:05 UTC8h 36m
2026-07-26 TWB403 ICN → FRA Jul 26, 01:20 UTCJul 26, 01:45 UTC25m
2026-07-24 TWB406 FCO → ICN Jul 24, 20:00 UTCJul 24, 21:55 UTC1h 55m
2026-07-24 TWB405 ICN → FCO Jul 24, 06:30 UTCJul 24, 18:05 UTC11h 35m
2026-07-24 TWB405 ICN → FCO Jul 24, 05:15 UTCJul 24, 05:35 UTC20m
2026-07-20 TWB406 FCO → ICN Jul 20, 05:50 UTCJul 20, 06:20 UTC30m
2026-07-19 TWB406 FCO → ICN Jul 19, 19:35 UTCJul 20, 05:05 UTC9h 30m
2026-07-19 TWB405 ICN → FCO Jul 19, 05:20 UTCJul 19, 17:35 UTC12h 15m
2026-07-19 TWB405 ICN → FCO Jul 19, 04:05 UTCJul 19, 04:30 UTC25m
2026-07-18 TWB406 FCO → ICN Jul 18, 05:55 UTCJul 18, 06:15 UTC20m
2026-07-17 TWB406 FCO → ICN Jul 17, 19:45 UTCJul 18, 05:05 UTC9h 21m
2026-07-17 TWB405 ICN → FCO Jul 17, 05:39 UTCJul 17, 17:44 UTC12h 5m
2026-07-17 TWB405 - Jul 17, 04:20 UTCJul 17, 04:44 UTC25m
2026-07-13 TWB404 - Jul 13, 04:10 UTCJul 13, 04:30 UTC20m
2026-07-12 TWB404 - Jul 12, 17:20 UTCJul 12, 19:40 UTC2h 20m
2026-07-12 TWB403 - Jul 12, 02:55 UTCJul 12, 14:50 UTC11h 55m
2026-07-12 TWB403 - Jul 12, 01:45 UTCJul 12, 02:05 UTC20m
2026-07-06 TWB406 - Jul 6, 06:15 UTCJul 6, 06:35 UTC20m
2026-07-05 TWB406 - Jul 5, 19:45 UTCJul 6, 05:25 UTC9h 40m
2026-07-05 TWB405 ICN → FCO Jul 5, 04:05 UTCJul 5, 16:55 UTC12h 50m
2026-07-04 TWB406 - Jul 4, 06:20 UTCJul 4, 06:45 UTC25m
2026-07-03 TWB406 - Jul 3, 19:45 UTCJul 4, 05:30 UTC9h 45m
2026-07-03 TWB405 - Jul 3, 05:25 UTCJul 3, 16:50 UTC11h 25m
2026-07-03 TWB405 - Jul 3, 04:15 UTCJul 3, 04:30 UTC15m
2026-06-27 TWB406 - Jun 27, 06:15 UTCJun 27, 06:40 UTC25m
2026-06-26 TWB406 - Jun 26, 19:45 UTCJun 27, 05:25 UTC9h 40m
2026-06-26 TWB405 - Jun 26, 05:35 UTCJun 26, 17:19 UTC11h 45m
2026-06-26 TWB405 - Jun 26, 04:24 UTCJun 26, 04:39 UTC15m
2026-06-23 TWB406 - Jun 23, 06:19 UTCJun 23, 06:44 UTC25m
2026-06-22 TWB406 - Jun 22, 19:54 UTCJun 23, 05:29 UTC9h 35m
2026-06-22 TWB405 ICN → FCO Jun 22, 03:54 UTCJun 22, 17:00 UTC13h 5m
2026-06-20 TWB406 - Jun 20, 06:05 UTCJun 20, 06:24 UTC20m
2026-06-19 TWB406 - Jun 19, 19:34 UTCJun 20, 05:14 UTC9h 40m
2026-06-19 TWB405 - Jun 19, 09:19 UTCJun 19, 16:44 UTC7h 25m
2026-06-19 TWB405 - Jun 19, 03:55 UTCJun 19, 04:10 UTC15m
2026-06-15 TWB406 - Jun 15, 06:15 UTCJun 15, 06:40 UTC25m
2026-06-14 TWB406 - Jun 14, 19:40 UTCJun 14, 23:10 UTC3h 30m
2026-06-14 TWB405 - Jun 14, 04:00 UTCJun 14, 14:05 UTC10h 5m
2026-06-13 TWB406 - Jun 13, 06:30 UTCJun 13, 06:50 UTC20m
2026-06-12 TWB406 - Jun 12, 19:55 UTCJun 13, 05:35 UTC9h 39m
2026-06-12 TWB405 - Jun 12, 06:05 UTCJun 12, 17:45 UTC11h 40m
2026-06-12 TWB405 - Jun 12, 04:45 UTCJun 12, 05:05 UTC20m
2026-06-11 TWB406 FCO → ICN Jun 11, 06:25 UTCJun 11, 07:00 UTC35m
2026-06-10 TWB406 FCO → ICN Jun 10, 19:45 UTCJun 11, 05:30 UTC9h 45m
2026-06-10 TWB405 ICN → FCO Jun 10, 05:35 UTCJun 10, 17:20 UTC11h 45m
2026-06-10 TWB405 ICN → FCO Jun 10, 04:15 UTCJun 10, 04:30 UTC15m
2026-06-02 TWB404 FRA → ICN Jun 2, 03:45 UTCJun 2, 04:10 UTC25m
2026-06-01 TWB404 FRA → ICN Jun 1, 17:10 UTCJun 1, 20:55 UTC3h 45m
2026-06-01 TWB403 ICN → FRA Jun 1, 07:05 UTCJun 1, 15:05 UTC8h 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 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 Jul 26, 20:55 UTC.
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 TWB406, TWB405, TWB403, TWB404, TWB407.