Apparatus

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sensors Mode-S transponder

71BA11

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

Currently assigned to HL7211 · AIRBUS A-321

Hex
71BA11
Octal
34335021
Decimal
7,453,201
Country
KR
Tail
HL7211
Type
A321
No current signal · last broadcast 8h ago
Flights observed
146
Distinct callsigns
20
Country
KR
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 71BA11.

Country allocation

The ICAO 24-bit address 71BA11 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 20 distinct

Callsign Airline Flights Last seen
ABL791 Air Busan 16 2026-05-28
ABL111 Air Busan 16 2026-05-28
ABL112 Air Busan 14 2026-05-27
ABL792 Air Busan 11 2026-05-25
ABL8021 Air Busan 9 2026-05-19
ABL8028 Air Busan 8 2026-05-19
ABL8826 Air Busan 7 2026-05-29
ABL711 Air Busan 6 2026-05-05
ABL8025 Air Busan 5 2026-05-25
ABL381 Air Busan 5 2026-05-26
ABL8811 Air Busan 4 2026-05-04
ABL712 Air Busan 4 2026-04-17
ABL382 Air Busan 4 2026-05-17
ABL341 Air Busan 3 2026-05-23
ABL1635 Air Busan 3 2026-05-29
ABL8872 Air Busan 2 2026-05-03
ABL8040 Air Busan 2 2026-05-04
ABL795 Air Busan 2 2026-05-21
ABL1645 Air Busan 2 2026-05-28
ABL126 Air Busan 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ABL8803 GMP → PUS May 29, 22:40 UTCMay 29, 23:05 UTC25m
2026-05-29 ABL8826 PUS → GMP May 29, 11:40 UTCMay 29, 12:10 UTC30m
2026-05-29 ABL1635 FSZ → PUS May 29, 03:05 UTCMay 29, 04:05 UTC1h 0m
2026-05-28 ABL1645 PUS → FSZ May 28, 09:05 UTCMay 29, 01:35 UTC16h 30m
2026-05-28 ABL791 PUS → TPE May 28, 07:00 UTCMay 28, 07:35 UTC35m
2026-05-28 ABL111 NRT → PUS May 28, 02:25 UTCMay 28, 03:40 UTC1h 15m
2026-05-27 ABL112 PUS → NRT May 27, 08:55 UTCMay 28, 00:40 UTC15h 45m
2026-05-27 ABL791 PUS → TPE May 27, 07:05 UTCMay 27, 07:35 UTC30m
2026-05-27 ABL111 NRT → PUS May 27, 02:14 UTCMay 27, 03:24 UTC1h 10m
2026-05-26 ABL112 PUS → NRT May 26, 18:14 UTCMay 27, 00:44 UTC6h 30m
2026-05-26 ABL381 PUS → MFM May 26, 09:09 UTCMay 26, 16:00 UTC6h 50m
2026-05-26 ABL791 PUS → TPE May 26, 06:59 UTCMay 26, 07:40 UTC40m
2026-05-25 ABL8025 GMP → CJU May 25, 22:34 UTCMay 25, 22:55 UTC20m
2026-05-25 ABL8826 PUS → GMP May 25, 12:10 UTCMay 25, 12:40 UTC30m
2026-05-25 ABL792 TPE → PUS May 25, 08:55 UTCMay 25, 09:20 UTC25m
2026-05-25 ABL791 PUS → TPE May 25, 06:50 UTCMay 25, 07:30 UTC40m
2026-05-24 ABL792 TPE → PUS May 24, 09:00 UTCMay 24, 09:25 UTC25m
2026-05-24 ABL111 NRT → PUS May 24, 02:20 UTCMay 24, 07:45 UTC5h 25m
2026-05-23 ABL112 PUS → NRT May 23, 23:35 UTCMay 24, 00:55 UTC1h 20m
2026-05-23 ABL341 PUS → XIY May 23, 13:15 UTCMay 23, 20:45 UTC7h 31m
2026-05-23 ABL792 TPE → PUS May 23, 09:00 UTCMay 23, 09:30 UTC30m
2026-05-23 ABL791 PUS → TPE May 23, 07:05 UTCMay 23, 07:40 UTC35m
2026-05-22 ABL143 FUK → PUS May 22, 11:05 UTCMay 22, 11:15 UTC10m
2026-05-22 ABL142 PUS → FUK May 22, 01:45 UTCMay 22, 01:55 UTC10m
2026-05-21 ABL796 KHH → PUS May 21, 06:20 UTCMay 21, 07:05 UTC45m
2026-05-21 ABL795 PUS → KHH May 21, 04:05 UTCMay 21, 05:00 UTC55m
2026-05-20 ABL795 PUS → KHH May 20, 09:00 UTCMay 21, 05:00 UTC20h 0m
2026-05-20 ABL791 PUS → TPE May 20, 07:20 UTCMay 20, 07:40 UTC20m
2026-05-20 ABL1635 FSZ → PUS May 20, 03:10 UTCMay 20, 04:05 UTC55m
2026-05-20 ABL1645 PUS → FSZ May 20, 00:45 UTCMay 20, 01:35 UTC50m
2026-05-19 ABL8021 GMP → CJU May 19, 06:30 UTCMay 19, 06:55 UTC25m
2026-05-19 ABL8028 CJU → GMP May 19, 04:55 UTCMay 19, 05:20 UTC25m
2026-05-18 ABL8025 GMP → CJU May 18, 22:25 UTCMay 18, 22:55 UTC30m
2026-05-18 ABL8826 PUS → GMP May 18, 12:10 UTCMay 18, 12:40 UTC30m
2026-05-18 ABL792 TPE → PUS May 18, 09:05 UTCMay 18, 09:25 UTC20m
2026-05-18 ABL1635 FSZ → PUS May 18, 03:05 UTCMay 18, 07:55 UTC4h 50m
2026-05-17 ABL382 MFM → PUS May 17, 18:01 UTCMay 18, 01:45 UTC7h 45m
2026-05-17 ABL381 PUS → MFM May 17, 10:10 UTCMay 17, 16:05 UTC5h 55m
2026-05-17 ABL125 KIX → PUS May 17, 05:15 UTCMay 17, 08:45 UTC3h 30m
2026-05-17 ABL126 PUS → KIX May 17, 03:05 UTCMay 17, 03:45 UTC40m
2026-05-16 ABL341 - May 16, 13:11 UTCMay 16, 21:05 UTC7h 55m
2026-05-15 ABL792 TPE → PUS May 15, 08:55 UTCMay 15, 09:20 UTC25m
2026-05-15 ABL111 NRT → PUS May 15, 02:25 UTCMay 15, 07:30 UTC5h 5m
2026-05-14 ABL112 PUS → NRT May 14, 09:05 UTCMay 15, 01:05 UTC16h 0m
2026-05-14 ABL111 NRT → PUS May 14, 02:45 UTCMay 14, 07:45 UTC5h 0m
2026-05-13 ABL112 PUS → NRT May 13, 08:55 UTCMay 14, 01:20 UTC16h 25m
2026-05-13 ABL111 NRT → PUS May 13, 02:20 UTCMay 13, 07:30 UTC5h 10m
2026-05-12 ABL112 PUS → NRT May 12, 23:25 UTCMay 13, 00:50 UTC1h 25m
2026-05-12 ABL8021 GMP → CJU May 12, 06:50 UTCMay 12, 07:25 UTC35m
2026-05-12 ABL8028 CJU → GMP May 12, 05:00 UTCMay 12, 05:40 UTC40m

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 HL7211 page for operator, model, and routing details .

Mode-S 71BA11 frequently asked

What is Mode-S code 71BA11?
71BA11 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7211.
Where is Mode-S 71BA11 registered?
Mode-S code 71BA11 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 71BA11 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 71BA11, octal 34335021, decimal 7,453,201.
What flights does 71BA11 operate?
Mode-S 71BA11 has broadcast 20 distinct callsigns, including ABL791, ABL111, ABL112, ABL792, ABL8021.