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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 · 39,000 ft
Flights observed
262
Distinct callsigns
20
Country
TH
Last broadcast
Jul 26, 22:45 UTC

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
THA653 - 11 2026-07-19
THA652 Thai Airways International 10 2026-07-19
THA643 - 10 2026-06-14
THA659 - 9 2026-07-08
THA644 Thai Airways International 9 2026-07-24
THA642 - 9 2026-06-13
THA658 - 8 2026-07-07
THA645 Thai Airways International 8 2026-07-25
THA960 Thai Airways International 7 2026-07-22
THA955 - 7 2026-07-12
THA954 - 7 2026-07-11
THA435 - 7 2026-07-08
THA410 - 7 2026-07-11
THA409 - 7 2026-07-11
THA961 Thai Airways International 6 2026-07-23
THA436 - 6 2026-07-08
THA901 Thai Airways International 5 2026-07-18
THA432 Thai Airways International 5 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THA925 MUC → BKK Jul 26, 12:45 UTCJul 26, 22:45 UTC10h 0m
2026-07-25 THA924 BKK → MUC Jul 25, 18:45 UTCJul 26, 05:05 UTC10h 20m
2026-07-25 THA645 NGO → BKK Jul 25, 02:30 UTCJul 25, 07:55 UTC5h 25m
2026-07-24 THA644 BKK → NGO Jul 24, 17:30 UTCJul 24, 22:30 UTC5h 0m
2026-07-24 THA432 DPS → BKK Jul 24, 03:00 UTCJul 24, 12:45 UTC9h 45m
2026-07-23 THA961 ARN → BKK Jul 23, 12:00 UTCJul 23, 22:40 UTC10h 40m
2026-07-22 THA960 BKK → ARN Jul 22, 18:10 UTCJul 23, 05:45 UTC11h 35m
2026-07-22 THA625 - Jul 22, 12:20 UTCJul 22, 15:00 UTC2h 40m
2026-07-21 THA316 DEL → BKK Jul 21, 18:30 UTCJul 21, 22:05 UTC3h 35m
2026-07-21 THA315 BKK → DEL Jul 21, 12:10 UTCJul 21, 15:50 UTC3h 40m
2026-07-21 THA404 SIN → BKK Jul 21, 04:55 UTCJul 21, 06:55 UTC2h 0m
2026-07-21 THA403 BKK → SIN Jul 21, 01:20 UTCJul 21, 03:05 UTC1h 45m
2026-07-20 THA941 MXP → BKK Jul 20, 12:30 UTCJul 20, 22:40 UTC10h 10m
2026-07-19 THA940 - Jul 19, 18:15 UTCJul 20, 05:15 UTC11h 0m
2026-07-19 THA653 - Jul 19, 12:35 UTCJul 19, 12:45 UTC10m
2026-07-19 THA653 - Jul 19, 08:05 UTCJul 19, 10:40 UTC2h 35m
2026-07-19 THA652 BKK → HKG Jul 19, 03:35 UTCJul 19, 06:15 UTC2h 40m
2026-07-19 THA652 BKK → HKG Jul 19, 01:25 UTCJul 19, 01:35 UTC10m
2026-07-18 THA901 IST → BKK Jul 18, 13:55 UTCJul 18, 22:35 UTC8h 40m
2026-07-17 THA900 - Jul 17, 17:09 UTCJul 18, 01:54 UTC8h 45m
2026-07-17 THA653 - Jul 17, 12:35 UTCJul 17, 12:55 UTC20m
2026-07-17 THA653 - Jul 17, 08:15 UTCJul 17, 10:50 UTC2h 35m
2026-07-17 THA652 BKK → HKG Jul 17, 01:20 UTCJul 17, 06:35 UTC5h 15m
2026-07-16 THA961 ARN → BKK Jul 16, 12:25 UTCJul 16, 23:25 UTC11h 0m
2026-07-15 THA960 - Jul 15, 18:00 UTCJul 16, 05:10 UTC11h 10m
2026-07-15 THA432 - Jul 15, 12:25 UTCJul 15, 12:50 UTC25m
2026-07-15 THA431 - Jul 15, 03:15 UTCJul 15, 03:45 UTC30m
2026-07-14 THA937 - Jul 14, 13:10 UTCJul 14, 23:40 UTC10h 29m
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

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, THA653, THA652, THA643.