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sensors Mode-S transponder

88510C

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-THL · AIRBUS A-350-900

Hex
88510C
Octal
42050414
Decimal
8,933,644
Country
TH
Tail
HS-THL
Type
A359
Broadcasting now · callsign THA901 · 41,000 ft
Flights observed
236
Distinct callsigns
20
Country
TH
Last broadcast
7m ago

Current position

88510C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 88510C 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
THA954 - 15 2026-06-29
THA955 - 13 2026-06-30
THA410 - 12 2026-07-09
THA409 - 12 2026-07-09
THA661 - 11 2026-07-11
THA660 - 11 2026-07-11
THA644 Thai Airways International 10 2026-06-11
THA656 Thai Airways International 7 2026-07-03
THA645 - 7 2026-06-12
THA960 - 6 2026-06-21
THA659 - 6 2026-07-06
THA658 - 6 2026-07-05
THA639 Thai Airways International 6 2026-05-21
THA638 Thai Airways International 6 2026-05-21
THA432 - 6 2026-06-25
THA961 - 5 2026-06-22
THA657 - 5 2026-07-04
THA404 - 5 2026-07-03
THA403 - 5 2026-07-03
THA941 - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THA901 - Jul 14, 14:00 UTCJul 14, 19:00 UTC5h 0m
2026-07-13 THA900 - Jul 13, 17:10 UTCJul 13, 18:20 UTC1h 10m
2026-07-13 THA669 - Jul 13, 10:25 UTCJul 13, 10:45 UTC20m
2026-07-13 THA668 - Jul 13, 05:55 UTCJul 13, 06:05 UTC10m
2026-07-13 THA668 - Jul 13, 03:50 UTCJul 13, 04:10 UTC20m
2026-07-12 THA937 - Jul 12, 12:40 UTCJul 12, 23:05 UTC10h 25m
2026-07-12 THA936 - Jul 12, 09:45 UTCJul 12, 10:15 UTC30m
2026-07-11 THA936 - Jul 11, 22:40 UTCJul 12, 09:40 UTC11h 0m
2026-07-11 THA661 - Jul 11, 20:45 UTCJul 11, 21:05 UTC20m
2026-07-11 THA661 - Jul 11, 15:35 UTCJul 11, 18:40 UTC3h 5m
2026-07-11 THA660 - Jul 11, 07:40 UTCJul 11, 12:20 UTC4h 40m
2026-07-11 THA660 - Jul 11, 06:25 UTCJul 11, 06:40 UTC15m
2026-07-10 THA941 MXP → BKK Jul 10, 13:15 UTCJul 10, 23:25 UTC10h 10m
2026-07-09 THA940 - Jul 9, 18:15 UTCJul 10, 05:50 UTC11h 35m
2026-07-09 THA410 - Jul 9, 13:05 UTCJul 9, 15:00 UTC1h 55m
2026-07-09 THA409 - Jul 9, 09:45 UTCJul 9, 11:40 UTC1h 55m
2026-07-09 THA683 - Jul 9, 01:35 UTCJul 9, 07:10 UTC5h 35m
2026-07-08 THA682 - Jul 8, 16:10 UTCJul 8, 21:50 UTC5h 40m
2026-07-08 THA476 SYD → BKK Jul 8, 01:05 UTCJul 8, 10:40 UTC9h 35m
2026-07-07 THA475 - Jul 7, 02:00 UTCJul 7, 10:00 UTC8h 0m
2026-07-06 THA346 - Jul 6, 19:35 UTCJul 6, 23:40 UTC4h 5m
2026-07-06 THA345 BKK → LHE Jul 6, 13:55 UTCJul 6, 17:40 UTC3h 45m
2026-07-06 THA659 ICN → BKK Jul 6, 01:45 UTCJul 6, 06:30 UTC4h 45m
2026-07-05 THA658 - Jul 5, 16:35 UTCJul 5, 21:30 UTC4h 55m
2026-07-05 THA653 ICN → BKK Jul 5, 08:15 UTCJul 5, 13:05 UTC4h 50m
2026-07-05 THA652 - Jul 5, 01:30 UTCJul 5, 06:40 UTC5h 10m
2026-07-04 THA326 - Jul 4, 19:50 UTCJul 4, 23:05 UTC3h 15m
2026-07-04 THA325 - Jul 4, 15:20 UTCJul 4, 18:25 UTC3h 5m
2026-07-04 THA657 ICN → BKK Jul 4, 01:40 UTCJul 4, 06:50 UTC5h 10m
2026-07-03 THA656 BKK → ICN Jul 3, 16:55 UTCJul 3, 21:50 UTC4h 55m
2026-07-03 THA410 - Jul 3, 13:20 UTCJul 3, 15:20 UTC2h 0m
2026-07-03 THA409 - Jul 3, 09:40 UTCJul 3, 11:40 UTC2h 0m
2026-07-03 THA404 - Jul 3, 04:50 UTCJul 3, 07:25 UTC2h 35m
2026-07-03 THA403 - Jul 3, 01:30 UTCJul 3, 03:15 UTC1h 45m
2026-07-02 THA941 MXP → BKK Jul 2, 12:35 UTCJul 2, 22:40 UTC10h 5m
2026-07-01 THA940 BKK → MXP Jul 1, 18:20 UTCJul 2, 05:05 UTC10h 45m
2026-07-01 THA615 - Jul 1, 09:30 UTCJul 1, 12:35 UTC3h 5m
2026-07-01 THA614 - Jul 1, 04:25 UTCJul 1, 05:05 UTC40m
2026-07-01 THA614 - Jul 1, 03:20 UTCJul 1, 03:35 UTC15m
2026-06-30 THA955 OSL → BKK Jun 30, 12:15 UTCJun 30, 23:00 UTC10h 45m
2026-06-29 THA954 - Jun 29, 17:34 UTCJun 30, 05:15 UTC11h 41m
2026-06-29 THA653 - Jun 29, 08:09 UTCJun 29, 13:09 UTC5h 0m
2026-06-29 THA652 - Jun 29, 01:25 UTCJun 29, 06:29 UTC5h 5m
2026-06-28 THA941 MXP → BKK Jun 28, 12:35 UTCJun 28, 22:49 UTC10h 15m
2026-06-27 THA940 BKK → MXP Jun 27, 18:20 UTCJun 28, 05:15 UTC10h 55m
2026-06-25 THA432 - Jun 25, 02:59 UTCJun 25, 14:29 UTC11h 30m
2026-06-24 THA925 MUC → BKK Jun 24, 12:54 UTCJun 24, 22:45 UTC9h 50m
2026-06-23 THA924 - Jun 23, 18:14 UTCJun 24, 04:59 UTC10h 45m
2026-06-22 THA961 - Jun 22, 12:30 UTCJun 22, 23:05 UTC10h 35m
2026-06-21 THA960 - Jun 21, 18:00 UTCJun 22, 05:24 UTC11h 25m

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-THL page for operator, model, and routing details .

Mode-S 88510C frequently asked

What is Mode-S code 88510C?
88510C is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-THL.
Where is Mode-S 88510C registered?
Mode-S code 88510C is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88510C broadcasting right now?
Yes. Mode-S 88510C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88510C, octal 42050414, decimal 8,933,644.
What flights does 88510C operate?
Mode-S 88510C has broadcast 20 distinct callsigns, including THA954, THA955, THA410, THA409, THA661.