Apparatus

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sensors Mode-S transponder

71BE17

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

Currently assigned to HL7617 · BOEING 747-8

Hex
71BE17
Octal
34337027
Decimal
7,454,231
Country
KR
Tail
HL7617
Type
B748
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
280
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S 71BE17.

Country allocation

The ICAO 24-bit address 71BE17 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
KAL214 - 31 2026-06-30
KAL8256 - 17 2026-06-28
KAL510 - 16 2026-07-02
KAL8592 Korean Air 15 2026-07-25
KAL8255 - 15 2026-06-28
KAL213 - 15 2026-06-29
KAL591 Korean Air 14 2026-07-24
KAL509 - 14 2026-07-01
KAL552 - 11 2026-07-04
KAL551 - 11 2026-07-04
KAL259 Korean Air 10 2026-07-26
KAL233 - 9 2026-07-03
KAL554 Korean Air 7 2026-07-25
KAL261 Korean Air 7 2026-07-22
KAL553 Korean Air 6 2026-07-25
KAL537 - 6 2026-07-18
KAL517 - 5 2026-07-14
KAL284 Korean Air 5 2026-04-20
KAL260 Korean Air 5 2026-07-26
KAL8245 Korean Air 4 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL260 ORD → ICN Jul 26, 16:05 UTCJul 26, 21:45 UTC5h 40m
2026-07-26 KAL259 ANC → ORD Jul 26, 07:45 UTCJul 26, 13:00 UTC5h 15m
2026-07-25 KAL259 ANC → ORD Jul 25, 17:05 UTCJul 26, 06:35 UTC13h 31m
2026-07-25 KAL554 KIX → ICN Jul 25, 10:30 UTCJul 25, 11:50 UTC1h 20m
2026-07-25 KAL553 ICN → KIX Jul 25, 06:25 UTCJul 25, 07:50 UTC1h 25m
2026-07-25 KAL8592 MAD → MXP Jul 25, 02:50 UTCJul 25, 03:10 UTC20m
2026-07-24 KAL8592 MAD → MXP Jul 24, 17:05 UTCJul 25, 02:00 UTC8h 55m
2026-07-24 KAL8592 MAD → MXP Jul 24, 12:50 UTCJul 24, 15:05 UTC2h 15m
2026-07-24 KAL591 ICN → VIE Jul 24, 06:30 UTCJul 24, 08:50 UTC2h 20m
2026-07-23 KAL591 ICN → VIE Jul 23, 17:00 UTCJul 24, 03:30 UTC10h 30m
2026-07-23 KAL591 ICN → VIE Jul 23, 15:50 UTCJul 23, 16:20 UTC30m
2026-07-22 KAL262 SEA → ICN Jul 22, 18:50 UTCJul 23, 05:25 UTC10h 35m
2026-07-22 KAL261 ICN → ANC Jul 22, 11:25 UTCJul 22, 15:50 UTC4h 25m
2026-07-21 KAL261 ICN → ANC Jul 21, 23:25 UTCJul 22, 04:25 UTC5h 0m
2026-07-21 KAL261 ICN → ANC Jul 21, 15:05 UTCJul 21, 22:15 UTC7h 10m
2026-07-20 KAL8266 ANC → ICN Jul 20, 17:10 UTCJul 21, 02:10 UTC8h 59m
2026-07-20 KAL8266 - Jul 20, 10:00 UTCJul 20, 15:55 UTC5h 55m
2026-07-20 KAL8265 ATL → ORD Jul 20, 03:35 UTCJul 20, 06:15 UTC2h 40m
2026-07-19 KAL8265 ATL → ORD Jul 19, 14:30 UTCJul 20, 01:30 UTC11h 0m
2026-07-19 KAL538 FRA → ICN Jul 19, 05:30 UTCJul 19, 05:55 UTC25m
2026-07-18 KAL538 FRA → ICN Jul 18, 19:15 UTCJul 19, 04:40 UTC9h 25m
2026-07-18 KAL537 VIE → FRA Jul 18, 15:05 UTCJul 18, 16:10 UTC1h 5m
2026-07-18 KAL537 - Jul 18, 02:14 UTCJul 18, 12:50 UTC10h 36m
2026-07-18 KAL537 - Jul 18, 01:05 UTCJul 18, 01:25 UTC20m
2026-07-17 KAL316 - Jul 17, 21:34 UTCJul 17, 22:10 UTC35m
2026-07-17 KAL315 - Jul 17, 14:39 UTCJul 17, 15:05 UTC25m
2026-07-16 KAL8210 LAX → SEA Jul 16, 13:25 UTCJul 17, 00:04 UTC10h 40m
2026-07-16 KAL8210 LAX → SEA Jul 16, 08:45 UTCJul 16, 10:35 UTC1h 50m
2026-07-15 KAL8209 - Jul 15, 19:30 UTCJul 16, 06:25 UTC10h 55m
2026-07-15 KAL317 ICN → ICN Jul 15, 08:55 UTCJul 15, 14:00 UTC5h 5m
2026-07-15 KAL518 - Jul 15, 05:55 UTCJul 15, 06:25 UTC30m
2026-07-14 KAL518 - Jul 14, 19:30 UTCJul 15, 05:05 UTC9h 34m
2026-07-14 KAL517 AMS → FRA Jul 14, 15:55 UTCJul 14, 16:50 UTC55m
2026-07-14 KAL517 - Jul 14, 00:35 UTCJul 14, 12:20 UTC11h 45m
2026-07-13 KAL517 - Jul 13, 23:25 UTCJul 13, 23:40 UTC15m
2026-07-13 KAL260 ORD → ICN Jul 13, 07:15 UTCJul 13, 20:20 UTC13h 5m
2026-07-12 KAL259 ANC → ORD Jul 12, 22:45 UTCJul 13, 04:05 UTC5h 20m
2026-07-12 KAL259 - Jul 12, 07:31 UTCJul 12, 21:10 UTC13h 40m
2026-07-12 KAL320 - Jul 12, 00:35 UTCJul 12, 00:55 UTC20m
2026-07-11 KAL319 ICN → CAN Jul 11, 16:20 UTCJul 11, 16:35 UTC15m
2026-07-11 KAL554 KIX → ICN Jul 11, 10:30 UTCJul 11, 11:55 UTC1h 25m
2026-07-11 KAL553 - Jul 11, 06:15 UTCJul 11, 08:01 UTC1h 45m
2026-07-11 KAL8592 - Jul 11, 03:30 UTCJul 11, 03:50 UTC20m
2026-07-10 KAL8592 - Jul 10, 17:45 UTCJul 11, 02:35 UTC8h 50m
2026-07-10 KAL8592 - Jul 10, 13:20 UTCJul 10, 16:00 UTC2h 40m
2026-07-10 KAL591 VIE → MAD Jul 10, 06:15 UTCJul 10, 08:50 UTC2h 35m
2026-07-09 KAL591 - Jul 9, 16:10 UTCJul 10, 01:40 UTC9h 30m
2026-07-08 KAL316 - Jul 8, 14:30 UTCJul 8, 23:35 UTC9h 5m
2026-07-08 KAL518 - Jul 8, 04:45 UTCJul 8, 05:05 UTC20m
2026-07-07 KAL518 - Jul 7, 18:20 UTCJul 8, 03:55 UTC9h 35m

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 HL7617 page for operator, model, and routing details .

Mode-S 71BE17 frequently asked

What is Mode-S code 71BE17?
71BE17 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7617.
Where is Mode-S 71BE17 registered?
Mode-S code 71BE17 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 71BE17 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BE17, octal 34337027, decimal 7,454,231.
What flights does 71BE17 operate?
Mode-S 71BE17 has broadcast 20 distinct callsigns, including KAL214, KAL8256, KAL510, KAL8592, KAL8255.