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 Jul 26, 21:30 UTC
Flights observed
431
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:30 UTC

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
ABL8021 Air Busan 20 2026-07-19
ABL8028 Air Busan 19 2026-07-19
ABL791 - 18 2026-07-16
ABL111 - 17 2026-07-16
ABL112 - 15 2026-07-15
ABL382 Air Busan 14 2026-07-26
ABL792 - 13 2026-07-16
ABL8826 - 11 2026-07-13
ABL8132 - 11 2026-07-19
ABL8109 Air Busan 11 2026-07-19
ABL8025 Air Busan 11 2026-07-19
ABL381 Air Busan 11 2026-07-26
ABL711 - 9 2026-07-10
ABL8811 - 8 2026-07-20
ABL163 - 8 2026-06-18
ABL8102 - 7 2026-07-19
ABL712 - 7 2026-07-10
ABL126 Air Busan 7 2026-06-07
ABL8040 - 6 2026-07-20
ABL176 - 6 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ABL382 MFM → PUS Jul 26, 20:45 UTCJul 26, 21:25 UTC40m
2026-07-26 ABL381 PUS → MFM Jul 26, 13:30 UTCJul 26, 19:40 UTC6h 10m
2026-07-26 ABL143 FUK → PUS Jul 26, 11:20 UTCJul 26, 11:50 UTC30m
2026-07-26 ABL144 PUS → FUK Jul 26, 09:05 UTCJul 26, 09:45 UTC40m
2026-07-26 ABL794 TPE → PUS Jul 26, 05:40 UTCJul 26, 07:35 UTC1h 56m
2026-07-26 ABL793 PUS → TPE Jul 26, 02:20 UTCJul 26, 04:15 UTC1h 55m
2026-07-26 ABL8807 GMP → PUS Jul 26, 00:20 UTCJul 26, 01:00 UTC40m
2026-07-25 ABL8802 PUS → GMP Jul 25, 22:25 UTCJul 25, 23:05 UTC40m
2026-07-25 ABL8134 CJU → PUS Jul 25, 11:00 UTCJul 25, 11:25 UTC25m
2026-07-25 ABL8135 PUS → CJU Jul 25, 09:05 UTCJul 25, 09:25 UTC20m
2026-07-25 ABL181 CTS → PUS Jul 25, 03:55 UTCJul 25, 06:00 UTC2h 5m
2026-07-25 ABL182 PUS → CTS Jul 25, 00:25 UTCJul 25, 02:30 UTC2h 5m
2026-07-24 ABL613 GUM → PUS Jul 24, 10:05 UTCJul 24, 21:25 UTC11h 20m
2026-07-24 ABL796 KHH → PUS Jul 24, 08:25 UTCJul 24, 08:40 UTC15m
2026-07-24 ABL796 KHH → PUS Jul 24, 06:20 UTCJul 24, 07:15 UTC55m
2026-07-24 ABL795 PUS → KHH Jul 24, 02:40 UTCJul 24, 04:55 UTC2h 15m
2026-07-24 ABL8106 CJU → PUS Jul 24, 00:35 UTCJul 24, 00:50 UTC15m
2026-07-23 ABL8107 PUS → CJU Jul 23, 22:45 UTCJul 23, 23:05 UTC20m
2026-07-23 ABL613 GUM → PUS Jul 23, 11:10 UTCJul 23, 21:05 UTC9h 55m
2026-07-23 ABL796 KHH → PUS Jul 23, 08:15 UTCJul 23, 08:30 UTC15m
2026-07-23 ABL796 KHH → PUS Jul 23, 06:25 UTCJul 23, 07:05 UTC40m
2026-07-23 ABL795 PUS → KHH Jul 23, 02:45 UTCJul 23, 05:10 UTC2h 25m
2026-07-22 ABL7315 PUS → DAD Jul 22, 13:20 UTCJul 23, 00:15 UTC10h 55m
2026-07-22 ABL8134 - Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-22 ABL8111 PUS → CJU Jul 22, 04:55 UTCJul 22, 05:10 UTC15m
2026-07-22 ABL123 KIX → PUS Jul 22, 02:35 UTCJul 22, 03:40 UTC1h 5m
2026-07-21 ABL124 PUS → KIX Jul 21, 23:45 UTCJul 22, 00:55 UTC1h 10m
2026-07-21 ABL774 DAD → PUS Jul 21, 22:00 UTCJul 21, 22:20 UTC20m
2026-07-21 ABL774 DAD → PUS Jul 21, 13:50 UTCJul 21, 20:55 UTC7h 5m
2026-07-21 ABL773 - Jul 21, 12:15 UTCJul 21, 12:40 UTC25m
2026-07-21 ABL337 PUS → YNJ Jul 21, 00:55 UTCJul 21, 07:25 UTC6h 30m
2026-07-20 ABL613 PUS → PUS Jul 20, 10:10 UTCJul 20, 21:05 UTC10h 55m
2026-07-20 ABL8110 CJU → PUS Jul 20, 07:25 UTCJul 20, 07:40 UTC15m
2026-07-20 ABL8111 PUS → CJU Jul 20, 05:15 UTCJul 20, 05:35 UTC20m
2026-07-20 ABL8811 GMP → PUS Jul 20, 03:25 UTCJul 20, 04:15 UTC50m
2026-07-20 ABL8040 - Jul 20, 01:50 UTCJul 20, 02:25 UTC35m
2026-07-19 ABL8025 GMP → CJU Jul 19, 23:20 UTCJul 19, 23:55 UTC35m
2026-07-19 ABL8824 PUS → GMP Jul 19, 10:25 UTCJul 19, 11:05 UTC40m
2026-07-19 ABL8132 - Jul 19, 09:10 UTCJul 19, 09:25 UTC15m
2026-07-19 ABL8021 GMP → CJU Jul 19, 06:55 UTCJul 19, 07:30 UTC35m
2026-07-19 ABL8028 CJU → GMP Jul 19, 05:20 UTCJul 19, 05:55 UTC35m
2026-07-19 ABL8109 PUS → CJU Jul 19, 03:15 UTCJul 19, 03:30 UTC15m
2026-07-19 ABL8102 - Jul 19, 01:20 UTCJul 19, 01:35 UTC15m
2026-07-18 ABL8025 GMP → CJU Jul 18, 22:25 UTCJul 18, 23:00 UTC35m
2026-07-18 ABL8824 PUS → GMP Jul 18, 10:20 UTCJul 18, 10:55 UTC35m
2026-07-18 ABL8132 - Jul 18, 09:05 UTCJul 18, 09:25 UTC20m
2026-07-18 ABL8021 - Jul 18, 07:00 UTCJul 18, 07:35 UTC35m
2026-07-18 ABL8028 - Jul 18, 05:10 UTCJul 18, 05:55 UTC45m
2026-07-18 ABL8109 - Jul 18, 03:00 UTCJul 18, 03:20 UTC20m
2026-07-18 ABL8102 - Jul 18, 01:50 UTCJul 18, 02:05 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 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 Jul 26, 21:30 UTC.
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 ABL8021, ABL8028, ABL791, ABL111, ABL112.