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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
Broadcasting now · callsign THA971 · 35,000 ft
Flights observed
227
Distinct callsigns
20
Country
TH
Last broadcast
Jul 26, 21:20 UTC

Current position

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

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 18 2026-07-25
THA950 Thai Airways International 17 2026-07-18
THA920 Thai Airways International 14 2026-07-24
THA922 Thai Airways International 13 2026-07-26
THA923 Thai Airways International 12 2026-07-26
THA951 Thai Airways International 11 2026-07-19
THA917 - 11 2026-07-12
THA916 - 11 2026-07-12
THA600 - 10 2026-07-18
THA930 Thai Airways International 9 2026-07-22
THA601 - 9 2026-07-18
THA971 Thai Airways International 8 2026-07-21
THA970 Thai Airways International 8 2026-07-20
THA673 - 8 2026-06-30
THA931 Thai Airways International 7 2026-07-23
THA683 - 7 2026-07-04
THA682 - 7 2026-07-03
THA672 Thai Airways International 7 2026-07-22
THA639 - 6 2026-07-16
THA638 - 6 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THA923 FRA → BKK Jul 26, 19:10 UTCJul 26, 21:20 UTC2h 10m
2026-07-26 THA922 BKK → FRA Jul 26, 05:45 UTCJul 26, 16:35 UTC10h 51m
2026-07-25 THA921 FRA → BKK Jul 25, 13:20 UTCJul 25, 22:50 UTC9h 30m
2026-07-24 THA920 BKK → FRA Jul 24, 17:15 UTCJul 24, 18:25 UTC1h 10m
2026-07-24 THA633 TPE → BKK Jul 24, 07:20 UTCJul 24, 10:30 UTC3h 10m
2026-07-24 THA632 BKK → TPE Jul 24, 02:30 UTCJul 24, 05:40 UTC3h 10m
2026-07-23 THA931 CDG → BKK Jul 23, 12:05 UTCJul 23, 22:35 UTC10h 30m
2026-07-22 THA930 BKK → CDG Jul 22, 20:30 UTCJul 23, 05:20 UTC8h 50m
2026-07-22 THA930 BKK → CDG Jul 22, 17:35 UTCJul 22, 19:55 UTC2h 20m
2026-07-22 THA672 BKK → KIX Jul 22, 01:40 UTCJul 22, 13:50 UTC12h 10m
2026-07-21 THA971 ZRH → BKK Jul 21, 11:45 UTCJul 21, 21:45 UTC10h 0m
2026-07-20 THA970 BKK → ZRH Jul 20, 18:30 UTCJul 21, 05:40 UTC11h 9m
2026-07-20 THA615 - Jul 20, 14:30 UTCJul 20, 16:00 UTC1h 30m
2026-07-20 THA614 BKK → PEK Jul 20, 07:20 UTCJul 20, 07:30 UTC10m
2026-07-20 THA614 BKK → PEK Jul 20, 04:30 UTCJul 20, 04:45 UTC15m
2026-07-20 THA614 BKK → PEK Jul 20, 03:20 UTCJul 20, 03:35 UTC15m
2026-07-19 THA951 CPH → BKK Jul 19, 12:45 UTCJul 19, 23:10 UTC10h 25m
2026-07-18 THA950 BKK → CPH Jul 18, 18:35 UTCJul 19, 05:20 UTC10h 45m
2026-07-18 THA601 - Jul 18, 07:20 UTCJul 18, 07:30 UTC10m
2026-07-18 THA601 - Jul 18, 05:20 UTCJul 18, 05:35 UTC15m
2026-07-18 THA600 - Jul 18, 03:25 UTCJul 18, 03:45 UTC20m
2026-07-18 THA600 - Jul 18, 01:15 UTCJul 18, 01:30 UTC15m
2026-07-17 THA951 CPH → BKK Jul 17, 12:50 UTCJul 17, 23:25 UTC10h 35m
2026-07-16 THA950 - Jul 16, 18:44 UTCJul 17, 05:39 UTC10h 55m
2026-07-16 THA639 - Jul 16, 14:10 UTCJul 16, 14:40 UTC30m
2026-07-16 THA639 - Jul 16, 12:14 UTCJul 16, 12:30 UTC15m
2026-07-16 THA638 - Jul 16, 10:10 UTCJul 16, 10:29 UTC20m
2026-07-16 THA638 - Jul 16, 08:05 UTCJul 16, 08:20 UTC15m
2026-07-15 THA923 - Jul 15, 19:30 UTCJul 16, 05:55 UTC10h 25m
2026-07-15 THA922 - Jul 15, 05:45 UTCJul 15, 16:50 UTC11h 5m
2026-07-14 THA951 - Jul 14, 12:55 UTCJul 14, 23:10 UTC10h 14m
2026-07-13 THA950 - Jul 13, 18:25 UTCJul 13, 19:35 UTC1h 10m
2026-07-12 THA917 - Jul 12, 21:00 UTCJul 13, 07:15 UTC10h 15m
2026-07-12 THA916 - Jul 12, 06:15 UTCJul 12, 18:20 UTC12h 5m
2026-07-11 THA971 - Jul 11, 11:55 UTCJul 11, 21:50 UTC9h 55m
2026-07-10 THA970 BKK → ZRH Jul 10, 18:30 UTCJul 11, 05:55 UTC11h 25m
2026-07-09 THA917 - Jul 9, 21:05 UTCJul 10, 08:05 UTC11h 0m
2026-07-09 THA916 - Jul 9, 06:15 UTCJul 9, 18:25 UTC12h 10m
2026-07-08 THA921 - Jul 8, 14:05 UTCJul 9, 00:15 UTC10h 10m
2026-07-07 THA920 - Jul 7, 17:20 UTCJul 8, 04:35 UTC11h 15m
2026-07-07 THA639 - Jul 7, 13:40 UTCJul 7, 14:15 UTC35m
2026-07-07 THA639 - Jul 7, 11:55 UTCJul 7, 12:00 UTC5m
2026-07-07 THA638 - Jul 7, 09:35 UTCJul 7, 09:55 UTC20m
2026-07-07 THA638 - Jul 7, 07:15 UTCJul 7, 08:35 UTC1h 20m
2026-07-06 THA923 FRA → BKK Jul 6, 19:15 UTCJul 7, 05:15 UTC10h 0m
2026-07-06 THA922 - Jul 6, 05:55 UTCJul 6, 17:05 UTC11h 10m
2026-07-05 THA951 - Jul 5, 12:50 UTCJul 5, 23:10 UTC10h 20m
2026-07-04 THA950 - Jul 4, 18:40 UTCJul 5, 05:45 UTC11h 5m
2026-07-04 THA683 HND → BKK Jul 4, 01:50 UTCJul 4, 07:25 UTC5h 35m
2026-07-03 THA682 - Jul 3, 16:15 UTCJul 3, 21:50 UTC5h 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 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?
Yes. Mode-S 88516E is currently airborne.
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.