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sensors Mode-S transponder

88510B

ICAO 24-bit transponder address · allocated to Thailand

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

Hex
88510B
Octal
42050413
Decimal
8,933,643
Country
TH
Tail
HS-THK
Type
A359
Broadcasting now · callsign THA937 · 37,000 ft
Flights observed
234
Distinct callsigns
20
Country
TH
Last broadcast
4h ago

Current position

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

Country allocation

The ICAO 24-bit address 88510B 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
THA660 - 16 2026-07-13
THA661 - 15 2026-07-13
THA643 - 10 2026-06-14
THA659 - 9 2026-07-08
THA642 - 9 2026-06-13
THA658 - 8 2026-07-07
THA644 Thai Airways International 8 2026-05-18
THA955 - 7 2026-07-12
THA954 - 7 2026-07-11
THA653 Thai Airways International 7 2026-05-30
THA652 Thai Airways International 7 2026-05-30
THA645 Thai Airways International 7 2026-05-19
THA435 - 7 2026-07-08
THA410 - 7 2026-07-11
THA409 - 7 2026-07-11
THA436 - 6 2026-07-08
THA960 - 5 2026-06-16
THA961 - 4 2026-06-17
THA901 - 4 2026-06-24
THA941 Thai Airways International 3 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 THA936 - Jul 13, 22:45 UTCJul 14, 10:05 UTC11h 20m
2026-07-13 THA661 - Jul 13, 20:40 UTCJul 13, 20:55 UTC15m
2026-07-13 THA661 - Jul 13, 15:40 UTCJul 13, 18:55 UTC3h 15m
2026-07-13 THA660 - Jul 13, 08:45 UTCJul 13, 12:20 UTC3h 35m
2026-07-13 THA660 - Jul 13, 06:20 UTCJul 13, 06:30 UTC10m
2026-07-12 THA955 - Jul 12, 12:10 UTCJul 12, 22:40 UTC10h 30m
2026-07-11 THA954 - Jul 11, 17:30 UTCJul 12, 05:20 UTC11h 50m
2026-07-11 THA410 - Jul 11, 14:40 UTCJul 11, 14:55 UTC15m
2026-07-11 THA410 - Jul 11, 13:00 UTCJul 11, 13:30 UTC30m
2026-07-11 THA409 - Jul 11, 10:50 UTCJul 11, 11:25 UTC35m
2026-07-11 THA409 - Jul 11, 09:40 UTCJul 11, 09:50 UTC10m
2026-07-11 THA404 - Jul 11, 06:20 UTCJul 11, 06:40 UTC20m
2026-07-11 THA404 - Jul 11, 04:50 UTCJul 11, 05:15 UTC25m
2026-07-11 THA403 - Jul 11, 01:25 UTCJul 11, 03:10 UTC1h 45m
2026-07-10 THA462 MEL → BKK Jul 10, 13:45 UTCJul 10, 22:50 UTC9h 5m
2026-07-10 THA461 - Jul 10, 01:35 UTCJul 10, 09:55 UTC8h 20m
2026-07-09 THA925 - Jul 9, 12:45 UTCJul 9, 22:30 UTC9h 45m
2026-07-08 THA924 - Jul 8, 18:15 UTCJul 9, 04:50 UTC10h 35m
2026-07-08 THA436 - Jul 8, 12:50 UTCJul 8, 16:05 UTC3h 15m
2026-07-08 THA435 - Jul 8, 11:05 UTCJul 8, 11:25 UTC20m
2026-07-08 THA435 - Jul 8, 08:30 UTCJul 8, 10:35 UTC2h 5m
2026-07-08 THA659 ICN → BKK Jul 8, 01:40 UTCJul 8, 06:35 UTC4h 55m
2026-07-07 THA658 - Jul 7, 16:25 UTCJul 7, 21:20 UTC4h 55m
2026-07-07 THA432 - Jul 7, 03:00 UTCJul 7, 12:40 UTC9h 40m
2026-07-06 THA955 OSL → BKK Jul 6, 12:15 UTCJul 6, 22:35 UTC10h 20m
2026-07-05 THA954 - Jul 5, 17:25 UTCJul 6, 05:15 UTC11h 50m
2026-07-04 THA346 - Jul 4, 19:40 UTCJul 4, 23:55 UTC4h 15m
2026-07-04 THA345 BKK → LHE Jul 4, 13:30 UTCJul 4, 17:35 UTC4h 5m
2026-07-04 THA613 - Jul 4, 09:20 UTCJul 4, 09:45 UTC25m
2026-07-04 THA612 - Jul 4, 04:10 UTCJul 4, 05:30 UTC1h 20m
2026-07-03 THA462 - Jul 3, 13:30 UTCJul 3, 22:40 UTC9h 10m
2026-07-03 THA461 - Jul 3, 01:55 UTCJul 3, 09:50 UTC7h 55m
2026-07-02 THA955 - Jul 2, 12:00 UTCJul 2, 22:25 UTC10h 25m
2026-07-01 THA954 - Jul 1, 17:50 UTCJul 2, 05:20 UTC11h 30m
2026-06-30 THA633 TPE → BKK Jun 30, 06:40 UTCJun 30, 09:40 UTC3h 0m
2026-06-30 THA632 - Jun 30, 01:45 UTCJun 30, 05:10 UTC3h 25m
2026-06-29 THA941 MXP → BKK Jun 29, 12:29 UTCJun 29, 22:39 UTC10h 10m
2026-06-28 THA940 BKK → MXP Jun 28, 18:40 UTCJun 29, 05:40 UTC11h 0m
2026-06-28 THA432 - Jun 28, 03:09 UTCJun 28, 12:35 UTC9h 25m
2026-06-27 THA941 MXP → BKK Jun 27, 12:19 UTCJun 27, 22:29 UTC10h 10m
2026-06-26 THA940 BKK → MXP Jun 26, 18:29 UTCJun 27, 05:29 UTC11h 0m
2026-06-26 THA410 - Jun 26, 14:05 UTCJun 26, 15:54 UTC1h 50m
2026-06-26 THA409 - Jun 26, 10:39 UTCJun 26, 12:29 UTC1h 50m
2026-06-26 THA601 - Jun 26, 06:15 UTCJun 26, 08:30 UTC2h 15m
2026-06-26 THA600 - Jun 26, 01:15 UTCJun 26, 03:50 UTC2h 35m
2026-06-25 THA661 - Jun 25, 15:40 UTCJun 25, 21:15 UTC5h 35m
2026-06-25 THA660 - Jun 25, 06:20 UTCJun 25, 12:10 UTC5h 50m
2026-06-24 THA901 - Jun 24, 13:54 UTCJun 24, 22:10 UTC8h 15m
2026-06-23 THA900 - Jun 23, 17:20 UTCJun 24, 02:30 UTC9h 10m
2026-06-23 THA322 DAC → BKK Jun 23, 08:09 UTCJun 23, 10:15 UTC2h 5m

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

Mode-S 88510B frequently asked

What is Mode-S code 88510B?
88510B is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-THK.
Where is Mode-S 88510B registered?
Mode-S code 88510B is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88510B broadcasting right now?
Yes. Mode-S 88510B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88510B, octal 42050413, decimal 8,933,643.
What flights does 88510B operate?
Mode-S 88510B has broadcast 20 distinct callsigns, including THA660, THA661, THA643, THA659, THA642.