sensors Mode-S transponder

71C516

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

Currently assigned to HL8516 · BOEING 787-9 Dreamliner

Hex
71C516
Octal
34342426
Decimal
7,456,022
Country
KR
Tail
HL8516
Type
B789
Broadcasting now · callsign APZ102 · 39,975 ft
Flights observed
73
Distinct callsigns
16
Country
KR
Last broadcast
5h ago

Current position

71C516 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C516 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 16 distinct

Callsign Airline Flights Last seen
APZ131 Air Premiea 17 2026-05-27
APZ132 Air Premiea 11 2026-05-28
APZ801 Air Premiea 5 2026-04-20
APZ111 Air Premiea 5 2026-05-10
APZ151 Air Premiea 4 2026-05-18
APZ112 Air Premiea 4 2026-05-10
APZ802 Air Premiea 3 2026-04-20
APZ5271 - 3 2026-04-15
APZ152 Air Premiea 3 2026-05-19
APZ136 Air Premiea 3 2026-05-24
APZ135 Air Premiea 3 2026-05-24
APZ102 Air Premiea 3 2026-05-29
APZ101 Air Premiea 3 2026-05-29
APZ736 Air Premiea 2 2026-05-09
APZ735 Air Premiea 2 2026-05-09
APZ5272 - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 APZ102 LAX → ICN May 29, 17:55 UTCMay 29, 23:40 UTC5h 45m
2026-05-29 APZ101 ICN → LAX May 29, 04:15 UTCMay 29, 14:55 UTC10h 40m
2026-05-28 APZ132 EWR → ICN May 28, 05:15 UTCMay 28, 20:00 UTC14h 45m
2026-05-27 APZ131 ICN → EWR May 27, 12:55 UTCMay 28, 02:05 UTC13h 10m
2026-05-26 APZ132 EWR → ICN May 26, 07:29 UTCMay 26, 21:59 UTC14h 30m
2026-05-25 APZ131 ICN → EWR May 25, 12:50 UTCMay 26, 02:35 UTC13h 44m
2026-05-24 APZ136 IAD → ICN May 24, 17:40 UTCMay 25, 07:30 UTC13h 50m
2026-05-24 APZ135 ICN → IAD May 24, 01:15 UTCMay 24, 14:20 UTC13h 5m
2026-05-23 APZ132 EWR → ICN May 23, 05:15 UTCMay 23, 19:35 UTC14h 20m
2026-05-22 APZ131 ICN → EWR May 22, 12:40 UTCMay 23, 01:45 UTC13h 5m
2026-05-21 APZ102 LAX → ICN May 21, 21:50 UTCMay 22, 10:25 UTC12h 35m
2026-05-21 APZ101 ICN → LAX May 21, 04:20 UTCMay 21, 14:40 UTC10h 20m
2026-05-20 APZ132 EWR → ICN May 20, 05:25 UTCMay 20, 19:55 UTC14h 30m
2026-05-19 APZ131 ICN → EWR May 19, 12:30 UTCMay 20, 01:45 UTC13h 15m
2026-05-19 APZ152 HNL → ICN May 19, 00:40 UTCMay 19, 10:00 UTC9h 20m
2026-05-18 APZ151 ICN → HNL May 18, 13:45 UTCMay 18, 21:55 UTC8h 9m
2026-05-17 APZ132 EWR → ICN May 17, 05:30 UTCMay 17, 19:35 UTC14h 5m
2026-05-16 APZ131 ICN → EWR May 16, 12:45 UTCMay 17, 02:05 UTC13h 20m
2026-05-10 APZ112 SFO → ICN May 10, 22:45 UTCMay 11, 10:20 UTC11h 35m
2026-05-10 APZ111 ICN → SFO May 10, 09:55 UTCMay 10, 19:05 UTC9h 10m
2026-05-10 APZ111 ICN → SFO May 10, 09:15 UTCMay 10, 09:24 UTC10m
2026-05-09 APZ736 NRT → ICN May 9, 09:10 UTCMay 9, 11:15 UTC2h 5m
2026-05-09 APZ735 ICN → NRT May 9, 05:20 UTCMay 9, 07:10 UTC1h 50m
2026-05-08 APZ132 EWR → ICN May 8, 05:05 UTCMay 8, 19:40 UTC14h 35m
2026-05-07 APZ131 ICN → EWR May 7, 13:15 UTCMay 8, 02:24 UTC13h 9m
2026-05-06 APZ136 IAD → ICN May 6, 17:35 UTCMay 7, 08:20 UTC14h 45m
2026-05-06 APZ135 ICN → IAD May 6, 01:20 UTCMay 6, 14:25 UTC13h 5m
2026-05-05 APZ132 EWR → ICN May 5, 05:05 UTCMay 5, 19:55 UTC14h 50m
2026-05-04 APZ131 ICN → EWR May 4, 12:40 UTCMay 5, 01:25 UTC12h 46m
2026-05-04 APZ112 SFO → ICN May 4, 10:25 UTCMay 4, 10:45 UTC20m
2026-05-03 APZ112 SFO → ICN May 3, 22:54 UTCMay 4, 09:15 UTC10h 20m
2026-05-03 APZ111 ICN → SFO May 3, 10:30 UTCMay 3, 19:50 UTC9h 20m
2026-05-03 APZ111 ICN → SFO May 3, 09:25 UTCMay 3, 09:50 UTC25m
2026-05-02 APZ736 NRT → ICN May 2, 09:10 UTCMay 2, 11:10 UTC2h 0m
2026-05-02 APZ735 ICN → NRT May 2, 05:05 UTCMay 2, 06:55 UTC1h 50m
2026-05-01 APZ132 EWR → ICN May 1, 05:05 UTCMay 1, 20:05 UTC15h 0m
2026-04-30 APZ131 ICN → EWR Apr 30, 13:00 UTCMay 1, 02:15 UTC13h 15m
2026-04-29 APZ136 IAD → ICN Apr 29, 17:30 UTCApr 30, 08:30 UTC14h 59m
2026-04-29 APZ135 ICN → IAD Apr 29, 01:20 UTCApr 29, 14:15 UTC12h 56m
2026-04-27 APZ112 SFO → ICN Apr 27, 22:55 UTCApr 28, 11:15 UTC12h 20m
2026-04-27 APZ111 ICN → SFO Apr 27, 09:25 UTCApr 27, 19:35 UTC10h 10m
2026-04-26 APZ102 LAX → ICN Apr 26, 17:50 UTCApr 27, 06:40 UTC12h 50m
2026-04-26 APZ101 ICN → LAX Apr 26, 04:10 UTCApr 26, 14:40 UTC10h 30m
2026-04-25 APZ132 EWR → ICN Apr 25, 07:10 UTCApr 25, 21:35 UTC14h 25m
2026-04-24 APZ131 ICN → EWR Apr 24, 12:45 UTCApr 25, 02:05 UTC13h 20m
2026-04-23 APZ132 EWR → ICN Apr 23, 05:20 UTCApr 23, 20:20 UTC14h 59m
2026-04-22 APZ131 ICN → EWR Apr 22, 13:45 UTCApr 23, 01:30 UTC11h 45m
2026-04-22 APZ131 ICN → EWR Apr 22, 12:45 UTCApr 22, 13:05 UTC20m
2026-04-20 APZ802 HKG → ICN Apr 20, 05:40 UTCApr 20, 08:35 UTC2h 55m
2026-04-20 APZ801 ICN → HKG Apr 20, 03:30 UTCApr 20, 03:50 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 HL8516 page for operator, model, and routing details .

Mode-S 71C516 frequently asked

What is Mode-S code 71C516?
71C516 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8516.
Where is Mode-S 71C516 registered?
Mode-S code 71C516 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 71C516 broadcasting right now?
Yes. Mode-S 71C516 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C516, octal 34342426, decimal 7,456,022.
What flights does 71C516 operate?
Mode-S 71C516 has broadcast 16 distinct callsigns, including APZ131, APZ132, APZ801, APZ111, APZ151.