sensors Mode-S transponder

88516B

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-TKK · BOEING 777-300ER

Hex
88516B
Octal
42050553
Decimal
8,933,739
Country
TH
Tail
HS-TKK
Type
B77W
Broadcasting now · callsign THA920 · 34,000 ft
Flights observed
114
Distinct callsigns
20
Country
TH
Last broadcast
2h ago

Current position

88516B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 88516B falls within the block assigned to Thailand (TH) by ICAO Annex 10, Volume III. Every aircraft registered in Thailand 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THA920 BKK → FRA May 29, 17:20 UTCMay 30, 00:45 UTC7h 25m
2026-05-29 THA673 KIX → BKK May 29, 08:50 UTCMay 29, 14:10 UTC5h 20m
2026-05-29 THA672 BKK → KIX May 29, 01:45 UTCMay 29, 06:40 UTC4h 55m
2026-05-28 THA971 ZRH → BKK May 28, 11:50 UTCMay 28, 21:50 UTC10h 0m
2026-05-27 THA970 BKK → ZRH May 27, 18:35 UTCMay 28, 06:00 UTC11h 25m
2026-05-26 THA923 FRA → BKK May 26, 19:10 UTCMay 27, 05:09 UTC10h 0m
2026-05-26 THA922 BKK → FRA May 26, 05:40 UTCMay 26, 06:44 UTC1h 5m
2026-05-25 THA931 CDG → BKK May 25, 11:55 UTCMay 25, 20:09 UTC8h 15m
2026-05-24 THA930 BKK → CDG May 24, 17:35 UTCMay 24, 18:45 UTC1h 10m
2026-05-24 THA683 HND → BKK May 24, 01:55 UTCMay 24, 07:40 UTC5h 45m
2026-05-23 THA682 BKK → HND May 23, 18:10 UTCMay 23, 21:30 UTC3h 20m
2026-05-23 THA682 BKK → HND May 23, 16:05 UTCMay 23, 16:35 UTC30m
2026-05-22 THA931 CDG → BKK May 22, 12:10 UTCMay 22, 22:15 UTC10h 5m
2026-05-21 THA930 BKK → CDG May 21, 17:40 UTCMay 22, 05:15 UTC11h 35m
2026-05-21 THA683 HND → BKK May 21, 01:45 UTCMay 21, 07:35 UTC5h 50m
2026-05-20 THA682 BKK → HND May 20, 16:10 UTCMay 20, 21:40 UTC5h 30m
2026-05-19 THA921 FRA → BKK May 19, 12:55 UTCMay 19, 22:35 UTC9h 40m
2026-05-18 THA920 BKK → FRA May 18, 17:15 UTCMay 19, 04:15 UTC10h 59m
2026-05-17 THA921 FRA → BKK May 17, 13:10 UTCMay 17, 23:35 UTC10h 25m
2026-05-17 THA920 BKK → FRA May 17, 04:50 UTCMay 17, 05:10 UTC20m
2026-05-16 THA920 BKK → FRA May 16, 20:15 UTCMay 17, 04:40 UTC8h 25m
2026-05-16 THA920 BKK → FRA May 16, 17:35 UTCMay 16, 17:55 UTC20m
2026-05-16 THA673 KIX → BKK May 16, 09:01 UTCMay 16, 14:05 UTC5h 5m
2026-05-16 THA672 BKK → KIX May 16, 01:45 UTCMay 16, 06:55 UTC5h 11m
2026-05-15 THA971 ZRH → BKK May 15, 11:50 UTCMay 15, 21:50 UTC9h 59m
2026-05-14 THA970 BKK → ZRH May 14, 18:30 UTCMay 14, 19:30 UTC1h 0m
2026-05-13 THA971 ZRH → BKK May 13, 11:55 UTCMay 13, 21:50 UTC9h 55m
2026-05-12 THA970 BKK → ZRH May 12, 18:40 UTCMay 13, 06:10 UTC11h 30m
2026-05-11 THA923 FRA → BKK May 11, 19:20 UTCMay 12, 05:35 UTC10h 15m
2026-05-11 THA922 BKK → FRA May 11, 05:45 UTCMay 11, 14:05 UTC8h 20m
2026-05-10 THA971 ZRH → BKK May 10, 12:05 UTCMay 10, 21:49 UTC9h 45m
2026-05-09 THA970 BKK → ZRH May 9, 18:40 UTCMay 10, 03:00 UTC8h 20m
2026-05-09 THA683 HND → BKK May 9, 02:10 UTCMay 9, 08:20 UTC6h 10m
2026-05-08 THA682 BKK → HND May 8, 16:05 UTCMay 8, 21:20 UTC5h 15m
2026-05-08 THA639 HKG → BKK May 8, 13:05 UTCMay 8, 14:00 UTC55m
2026-05-08 THA639 HKG → BKK May 8, 11:25 UTCMay 8, 11:40 UTC15m
2026-05-08 THA638 BKK → HKG May 8, 09:25 UTCMay 8, 09:49 UTC25m
2026-05-08 THA638 BKK → HKG May 8, 07:24 UTCMay 8, 08:05 UTC40m
2026-05-07 THA921 FRA → BKK May 7, 13:20 UTCMay 7, 22:50 UTC9h 30m
2026-05-06 THA920 BKK → FRA May 6, 17:15 UTCMay 7, 04:20 UTC11h 4m
2026-05-05 THA917 LHR → BKK May 5, 20:45 UTCMay 6, 06:20 UTC9h 35m
2026-05-05 THA916 BKK → LHR May 5, 06:10 UTCMay 5, 18:20 UTC12h 10m
2026-05-04 THA951 CPH → BKK May 4, 12:35 UTCMay 4, 22:20 UTC9h 46m
2026-05-03 THA950 BKK → CPH May 3, 18:25 UTCMay 3, 22:30 UTC4h 5m
2026-05-03 THA639 HKG → BKK May 3, 14:50 UTCMay 3, 15:30 UTC40m
2026-05-03 THA639 HKG → BKK May 3, 13:00 UTCMay 3, 13:15 UTC15m
2026-05-03 THA638 BKK → HKG May 3, 10:15 UTCMay 3, 10:40 UTC25m
2026-05-03 THA638 BKK → HKG May 3, 07:40 UTCMay 3, 08:05 UTC25m
2026-05-02 THA316 DEL → BKK May 2, 18:10 UTCMay 2, 21:40 UTC3h 30m
2026-05-02 THA315 BKK → DEL May 2, 12:10 UTCMay 2, 13:20 UTC1h 10m

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 HS-TKK page for operator, model, and routing details .

Mode-S 88516B frequently asked

What is Mode-S code 88516B?
88516B is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-TKK.
Where is Mode-S 88516B registered?
Mode-S code 88516B is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88516B broadcasting right now?
Yes. Mode-S 88516B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88516B, octal 42050553, decimal 8,933,739.
What flights does 88516B operate?
Mode-S 88516B has broadcast 20 distinct callsigns, including THA682, THA683, THA970, THA920, THA971.