Apparatus

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sensors Mode-S transponder

88516E

ICAO 24-bit transponder address · allocated to Thailand

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

Hex
88516E
Octal
42050556
Decimal
8,933,742
Country
TH
Tail
HS-TKN
Type
B77W
No current signal · last broadcast 4h ago
Flights observed
106
Distinct callsigns
20
Country
TH
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 88516E.

Country allocation

The ICAO 24-bit address 88516E 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

Callsign Airline Flights Last seen
THA921 Thai Airways International 14 2026-05-26
THA950 Thai Airways International 11 2026-05-18
THA920 Thai Airways International 10 2026-05-25
THA922 Thai Airways International 9 2026-05-15
THA923 Thai Airways International 8 2026-05-15
THA917 Thai Airways International 6 2026-05-27
THA916 Thai Airways International 6 2026-05-27
THA951 Thai Airways International 4 2026-05-19
THA673 Thai Airways International 4 2026-05-02
THA601 Thai Airways International 4 2026-05-17
THA600 Thai Airways International 4 2026-05-17
THA931 Thai Airways International 3 2026-05-14
THA930 Thai Airways International 3 2026-05-13
THA971 Thai Airways International 2 2026-05-29
THA970 Thai Airways International 2 2026-05-28
THA683 Thai Airways International 2 2026-05-18
THA682 Thai Airways International 2 2026-05-17
THA672 Thai Airways International 2 2026-04-28
THA668 Thai Airways International 2 2026-04-30
THA639 Thai Airways International 2 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THA971 ZRH → BKK May 29, 11:50 UTCMay 29, 22:00 UTC10h 10m
2026-05-28 THA970 BKK → ZRH May 28, 18:30 UTCMay 29, 05:50 UTC11h 20m
2026-05-27 THA917 LHR → BKK May 27, 20:45 UTCMay 28, 07:30 UTC10h 45m
2026-05-27 THA916 BKK → LHR May 27, 05:55 UTCMay 27, 07:00 UTC1h 6m
2026-05-26 THA921 FRA → BKK May 26, 13:24 UTCMay 26, 23:35 UTC10h 10m
2026-05-25 THA920 BKK → FRA May 25, 17:10 UTCMay 26, 04:35 UTC11h 25m
2026-05-24 THA917 LHR → BKK May 24, 21:00 UTCMay 25, 08:05 UTC11h 5m
2026-05-24 THA916 BKK → LHR May 24, 05:55 UTCMay 24, 18:05 UTC12h 10m
2026-05-22 THA917 LHR → BKK May 22, 21:15 UTCMay 23, 08:05 UTC10h 49m
2026-05-22 THA916 BKK → LHR May 22, 06:00 UTCMay 22, 18:05 UTC12h 5m
2026-05-20 THA917 LHR → BKK May 20, 20:55 UTCMay 21, 06:30 UTC9h 35m
2026-05-20 THA916 BKK → LHR May 20, 05:50 UTCMay 20, 06:50 UTC1h 0m
2026-05-19 THA951 CPH → BKK May 19, 12:40 UTCMay 19, 22:55 UTC10h 15m
2026-05-18 THA950 BKK → CPH May 18, 18:10 UTCMay 18, 22:05 UTC3h 54m
2026-05-18 THA683 HND → BKK May 18, 01:55 UTCMay 18, 07:20 UTC5h 25m
2026-05-17 THA682 BKK → HND May 17, 16:05 UTCMay 17, 21:35 UTC5h 30m
2026-05-17 THA601 HKG → BKK May 17, 07:10 UTCMay 17, 07:45 UTC35m
2026-05-17 THA601 HKG → BKK May 17, 05:25 UTCMay 17, 05:35 UTC10m
2026-05-17 THA600 BKK → HKG May 17, 03:20 UTCMay 17, 03:30 UTC10m
2026-05-17 THA600 BKK → HKG May 17, 01:15 UTCMay 17, 01:45 UTC30m
2026-05-15 THA923 FRA → BKK May 15, 19:15 UTCMay 16, 05:35 UTC10h 20m
2026-05-15 THA922 BKK → FRA May 15, 05:45 UTCMay 15, 17:00 UTC11h 14m
2026-05-14 THA931 CDG → BKK May 14, 12:15 UTCMay 14, 22:25 UTC10h 10m
2026-05-13 THA930 BKK → CDG May 13, 17:40 UTCMay 14, 05:40 UTC12h 0m
2026-05-12 THA917 LHR → BKK May 12, 20:45 UTCMay 13, 07:35 UTC10h 50m
2026-05-12 THA916 BKK → LHR May 12, 06:00 UTCMay 12, 18:20 UTC12h 20m
2026-05-11 THA931 CDG → BKK May 11, 11:45 UTCMay 11, 22:05 UTC10h 20m
2026-05-10 THA930 BKK → CDG May 10, 17:49 UTCMay 11, 05:45 UTC11h 55m
2026-05-10 THA601 HKG → BKK May 10, 06:59 UTCMay 10, 07:40 UTC40m
2026-05-10 THA601 HKG → BKK May 10, 05:20 UTCMay 10, 05:34 UTC15m
2026-05-10 THA600 BKK → HKG May 10, 03:20 UTCMay 10, 03:30 UTC10m
2026-05-10 THA600 BKK → HKG May 10, 01:20 UTCMay 10, 02:00 UTC40m
2026-05-09 THA971 ZRH → BKK May 9, 12:00 UTCMay 9, 19:10 UTC7h 10m
2026-05-08 THA970 BKK → ZRH May 8, 18:35 UTCMay 9, 05:55 UTC11h 20m
2026-05-07 THA917 LHR → BKK May 7, 20:45 UTCMay 8, 06:50 UTC10h 5m
2026-05-07 THA916 BKK → LHR May 7, 06:20 UTCMay 7, 18:30 UTC12h 10m
2026-05-06 THA921 FRA → BKK May 6, 13:00 UTCMay 6, 23:05 UTC10h 4m
2026-05-05 THA920 BKK → FRA May 5, 17:15 UTCMay 6, 04:30 UTC11h 15m
2026-05-05 THA639 HKG → BKK May 5, 13:20 UTCMay 5, 14:00 UTC40m
2026-05-05 THA639 HKG → BKK May 5, 11:30 UTCMay 5, 11:40 UTC10m
2026-05-05 THA638 BKK → HKG May 5, 09:30 UTCMay 5, 09:40 UTC10m
2026-05-05 THA638 BKK → HKG May 5, 07:30 UTCMay 5, 07:55 UTC25m
2026-05-04 THA923 FRA → BKK May 4, 19:30 UTCMay 5, 05:35 UTC10h 5m
2026-05-04 THA922 BKK → FRA May 4, 06:00 UTCMay 4, 06:25 UTC25m
2026-05-03 THA921 FRA → BKK May 3, 13:05 UTCMay 3, 23:25 UTC10h 20m
2026-05-02 THA920 BKK → FRA May 2, 17:15 UTCMay 3, 04:20 UTC11h 4m
2026-05-02 THA673 KIX → BKK May 2, 01:45 UTCMay 2, 14:15 UTC12h 30m
2026-05-01 THA951 CPH → BKK May 1, 13:25 UTCMay 1, 23:35 UTC10h 10m
2026-04-30 THA950 BKK → CPH Apr 30, 20:20 UTCMay 1, 05:50 UTC9h 30m
2026-04-30 THA950 BKK → CPH Apr 30, 18:15 UTCApr 30, 18:35 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 HS-TKN page for operator, model, and routing details .

Mode-S 88516E frequently asked

What is Mode-S code 88516E?
88516E is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-TKN.
Where is Mode-S 88516E registered?
Mode-S code 88516E is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88516E broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88516E, octal 42050556, decimal 8,933,742.
What flights does 88516E operate?
Mode-S 88516E has broadcast 20 distinct callsigns, including THA921, THA950, THA920, THA922, THA923.