Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 2h ago
Flights observed
358
Distinct callsigns
20
Country
KR
Last broadcast
2h 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
ABL8021 - 18 2026-07-14
ABL8028 - 17 2026-07-14
ABL791 Air Busan 16 2026-05-28
ABL111 Air Busan 16 2026-05-28
ABL112 Air Busan 14 2026-05-27
ABL8826 - 11 2026-07-13
ABL792 Air Busan 11 2026-05-25
ABL382 - 11 2026-07-03
ABL8132 - 9 2026-07-14
ABL8109 - 9 2026-07-14
ABL8025 - 9 2026-07-13
ABL711 - 9 2026-07-10
ABL381 - 9 2026-07-03
ABL163 - 8 2026-06-18
ABL8811 - 7 2026-07-04
ABL712 - 7 2026-07-10
ABL126 Air Busan 7 2026-06-07
ABL176 - 6 2026-06-18
ABL175 - 6 2026-06-18
ABL164 Air Busan 6 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ABL8132 - Jul 14, 09:15 UTCJul 14, 09:35 UTC20m
2026-07-14 ABL8021 - Jul 14, 06:40 UTCJul 14, 07:20 UTC40m
2026-07-14 ABL8028 - Jul 14, 05:00 UTCJul 14, 05:40 UTC40m
2026-07-14 ABL8109 - Jul 14, 02:55 UTCJul 14, 03:15 UTC20m
2026-07-14 ABL8102 - Jul 14, 01:20 UTCJul 14, 01:35 UTC15m
2026-07-13 ABL8025 - Jul 13, 22:20 UTCJul 13, 22:55 UTC35m
2026-07-13 ABL8826 PUS → GMP Jul 13, 11:25 UTCJul 13, 12:10 UTC45m
2026-07-13 ABL8132 - Jul 13, 09:15 UTCJul 13, 09:35 UTC20m
2026-07-13 ABL8021 - Jul 13, 06:45 UTCJul 13, 07:20 UTC35m
2026-07-13 ABL8028 - Jul 13, 04:45 UTCJul 13, 05:31 UTC45m
2026-07-13 ABL8109 - Jul 13, 02:55 UTCJul 13, 03:15 UTC20m
2026-07-13 ABL8102 - Jul 13, 01:05 UTCJul 13, 01:25 UTC20m
2026-07-12 ABL8105 - Jul 12, 22:45 UTCJul 12, 23:05 UTC20m
2026-07-12 ABL145 - Jul 12, 07:50 UTCJul 12, 08:20 UTC30m
2026-07-12 ABL146 - Jul 12, 06:05 UTCJul 12, 06:25 UTC20m
2026-07-12 ABL7967 - Jul 12, 04:01 UTCJul 12, 04:20 UTC20m
2026-07-12 ABL7967 - Jul 12, 02:01 UTCJul 12, 02:50 UTC50m
2026-07-11 ABL7957 - Jul 11, 22:55 UTCJul 12, 01:15 UTC2h 20m
2026-07-11 ABL372 - Jul 11, 06:45 UTCJul 11, 07:05 UTC20m
2026-07-11 ABL371 - Jul 11, 00:10 UTCJul 11, 00:30 UTC20m
2026-07-10 ABL712 - Jul 10, 21:25 UTCJul 10, 21:50 UTC25m
2026-07-10 ABL711 - Jul 10, 12:15 UTCJul 10, 20:15 UTC8h 0m
2026-07-10 ABL133 - Jul 10, 09:40 UTCJul 10, 10:20 UTC40m
2026-07-10 ABL134 - Jul 10, 07:35 UTCJul 10, 08:15 UTC40m
2026-07-10 ABL181 - Jul 10, 03:55 UTCJul 10, 06:15 UTC2h 20m
2026-07-10 ABL182 PUS → CTS Jul 10, 00:25 UTCJul 10, 02:35 UTC2h 10m
2026-07-09 ABL3175 PUS → PUS Jul 9, 01:05 UTCJul 9, 08:05 UTC7h 0m
2026-07-08 ABL341 PUS → PUS Jul 8, 13:15 UTCJul 8, 21:35 UTC8h 20m
2026-07-08 ABL143 - Jul 8, 11:05 UTCJul 8, 11:40 UTC35m
2026-07-08 ABL144 - Jul 8, 09:10 UTCJul 8, 09:40 UTC30m
2026-07-08 ABL145 - Jul 8, 07:10 UTCJul 8, 07:45 UTC35m
2026-07-08 ABL146 - Jul 8, 05:10 UTCJul 8, 05:45 UTC35m
2026-07-08 ABL141 - Jul 8, 03:00 UTCJul 8, 03:40 UTC40m
2026-07-08 ABL142 - Jul 8, 01:15 UTCJul 8, 01:45 UTC30m
2026-07-07 ABL712 PUS → PUS Jul 7, 11:10 UTCJul 7, 21:20 UTC10h 10m
2026-07-07 ABL8132 - Jul 7, 08:40 UTCJul 7, 09:00 UTC20m
2026-07-07 ABL8021 - Jul 7, 06:35 UTCJul 7, 07:10 UTC35m
2026-07-07 ABL8028 - Jul 7, 04:45 UTCJul 7, 05:25 UTC40m
2026-07-07 ABL8109 - Jul 7, 02:50 UTCJul 7, 03:05 UTC15m
2026-07-07 ABL8102 - Jul 7, 01:15 UTCJul 7, 01:40 UTC25m
2026-07-06 ABL8025 - Jul 6, 22:30 UTCJul 6, 23:05 UTC35m
2026-07-06 ABL8826 PUS → GMP Jul 6, 11:40 UTCJul 6, 12:25 UTC45m
2026-07-06 ABL8172 - Jul 6, 10:25 UTCJul 6, 10:45 UTC20m
2026-07-06 ABL8173 - Jul 6, 08:25 UTCJul 6, 08:40 UTC15m
2026-07-06 ABL337 PUS → PUS Jul 6, 00:55 UTCJul 6, 07:15 UTC6h 20m
2026-07-05 ABL3175 PUS → PUS Jul 5, 00:20 UTCJul 5, 06:20 UTC6h 0m
2026-07-04 ABL342 PUS → PUS Jul 4, 13:10 UTCJul 4, 21:30 UTC8h 20m
2026-07-04 ABL8116 - Jul 4, 10:00 UTCJul 4, 10:25 UTC25m
2026-07-04 ABL8117 - Jul 4, 08:10 UTCJul 4, 08:30 UTC20m
2026-07-04 ABL8110 - Jul 4, 06:45 UTCJul 4, 07:05 UTC20m

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 2h 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 ABL8021, ABL8028, ABL791, ABL111, ABL112.