Apparatus

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sensors Mode-S transponder

88510A

ICAO 24-bit transponder address · allocated to Thailand

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

Hex
88510A
Octal
42050412
Decimal
8,933,642
Country
TH
Tail
HS-THJ
Type
A359
No current signal · last broadcast 6h ago
Flights observed
244
Distinct callsigns
20
Country
TH
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 88510A.

Country allocation

The ICAO 24-bit address 88510A 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
THA961 - 19 2026-07-04
THA960 - 17 2026-07-03
THA652 - 13 2026-07-09
THA653 - 12 2026-07-09
THA644 - 11 2026-06-28
THA660 Thai Airways International 8 2026-06-06
THA659 - 8 2026-07-10
THA645 - 8 2026-06-29
THA661 Thai Airways International 7 2026-06-06
THA435 - 7 2026-07-12
THA955 - 6 2026-07-08
THA954 - 6 2026-07-07
THA658 - 6 2026-07-09
THA318 Thai Airways International 6 2026-05-28
THA317 Thai Airways International 6 2026-05-28
THA436 - 5 2026-07-12
THA432 Thai Airways International 5 2026-06-16
THA415 - 5 2026-06-23
THA657 Thai Airways International 4 2026-06-14
THA656 Thai Airways International 4 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 THA941 - Jul 13, 13:00 UTCJul 13, 23:25 UTC10h 25m
2026-07-12 THA940 - Jul 12, 18:20 UTCJul 13, 05:25 UTC11h 5m
2026-07-12 THA436 - Jul 12, 12:55 UTCJul 12, 15:55 UTC3h 0m
2026-07-12 THA435 - Jul 12, 09:45 UTCJul 12, 11:25 UTC1h 40m
2026-07-12 THA435 - Jul 12, 08:35 UTCJul 12, 08:45 UTC10m
2026-07-12 THA404 - Jul 12, 04:55 UTCJul 12, 07:01 UTC2h 5m
2026-07-12 THA403 - Jul 12, 02:30 UTCJul 12, 03:05 UTC35m
2026-07-12 THA403 - Jul 12, 01:20 UTCJul 12, 01:35 UTC15m
2026-07-11 THA941 - Jul 11, 12:30 UTCJul 11, 22:35 UTC10h 5m
2026-07-10 THA940 - Jul 10, 18:20 UTCJul 11, 05:25 UTC11h 6m
2026-07-10 THA436 - Jul 10, 12:20 UTCJul 10, 15:20 UTC3h 0m
2026-07-10 THA435 - Jul 10, 10:30 UTCJul 10, 10:45 UTC15m
2026-07-10 THA435 - Jul 10, 07:50 UTCJul 10, 09:55 UTC2h 5m
2026-07-10 THA659 - Jul 10, 02:35 UTCJul 10, 05:50 UTC3h 15m
2026-07-10 THA659 - Jul 10, 00:55 UTCJul 10, 01:35 UTC40m
2026-07-09 THA658 - Jul 9, 16:30 UTCJul 9, 21:25 UTC4h 55m
2026-07-09 THA653 ICN → BKK Jul 9, 08:20 UTCJul 9, 13:05 UTC4h 45m
2026-07-09 THA652 - Jul 9, 01:25 UTCJul 9, 06:35 UTC5h 10m
2026-07-08 THA955 OSL → BKK Jul 8, 12:25 UTCJul 8, 23:10 UTC10h 45m
2026-07-07 THA954 - Jul 7, 17:25 UTCJul 8, 05:15 UTC11h 50m
2026-07-07 THA466 - Jul 7, 04:00 UTCJul 7, 13:05 UTC9h 5m
2026-07-06 THA465 - Jul 6, 12:55 UTCJul 6, 20:50 UTC7h 55m
2026-07-05 THA462 - Jul 5, 13:30 UTCJul 5, 22:10 UTC8h 40m
2026-07-05 THA461 - Jul 5, 01:30 UTCJul 5, 09:40 UTC8h 10m
2026-07-04 THA961 ARN → BKK Jul 4, 12:00 UTCJul 4, 22:40 UTC10h 40m
2026-07-03 THA960 - Jul 3, 17:50 UTCJul 4, 05:20 UTC11h 30m
2026-07-03 THA653 - Jul 3, 08:10 UTCJul 3, 13:10 UTC5h 0m
2026-07-03 THA652 - Jul 3, 01:25 UTCJul 3, 06:30 UTC5h 5m
2026-07-02 THA326 - Jul 2, 19:40 UTCJul 2, 23:00 UTC3h 20m
2026-07-02 THA325 - Jul 2, 17:55 UTCJul 2, 18:15 UTC20m
2026-07-02 THA325 - Jul 2, 15:20 UTCJul 2, 15:35 UTC15m
2026-07-02 THA476 SYD → BKK Jul 2, 00:20 UTCJul 2, 09:45 UTC9h 25m
2026-07-01 THA475 - Jul 1, 01:50 UTCJul 1, 09:50 UTC8h 0m
2026-06-30 THA961 - Jun 30, 12:00 UTCJun 30, 22:40 UTC10h 40m
2026-06-29 THA960 BKK → ARN Jun 29, 17:49 UTCJun 30, 05:45 UTC11h 55m
2026-06-29 THA645 - Jun 29, 02:25 UTCJun 29, 07:30 UTC5h 5m
2026-06-28 THA644 - Jun 28, 22:49 UTCJun 28, 22:59 UTC10m
2026-06-28 THA644 - Jun 28, 17:55 UTCJun 28, 21:10 UTC3h 15m
2026-06-28 THA653 - Jun 28, 08:25 UTCJun 28, 13:25 UTC5h 0m
2026-06-28 THA652 - Jun 28, 01:55 UTCJun 28, 06:49 UTC4h 55m
2026-06-27 THA342 - Jun 27, 12:50 UTCJun 27, 23:39 UTC10h 50m
2026-06-27 THA633 - Jun 27, 06:50 UTCJun 27, 10:40 UTC3h 50m
2026-06-27 THA632 - Jun 27, 01:44 UTCJun 27, 05:10 UTC3h 25m
2026-06-26 THA955 OSL → BKK Jun 26, 11:55 UTCJun 26, 22:29 UTC10h 35m
2026-06-25 THA954 - Jun 25, 17:34 UTCJun 26, 05:24 UTC11h 50m
2026-06-25 THA653 - Jun 25, 08:09 UTCJun 25, 13:09 UTC5h 0m
2026-06-25 THA652 - Jun 25, 01:24 UTCJun 25, 06:25 UTC5h 0m
2026-06-24 THA941 MXP → BKK Jun 24, 12:20 UTCJun 24, 22:29 UTC10h 10m
2026-06-23 THA940 BKK → MXP Jun 23, 18:29 UTCJun 24, 05:24 UTC10h 55m
2026-06-23 THA416 - Jun 23, 05:39 UTCJun 23, 07:19 UTC1h 40m

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

Mode-S 88510A frequently asked

What is Mode-S code 88510A?
88510A is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-THJ.
Where is Mode-S 88510A registered?
Mode-S code 88510A is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88510A broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88510A, octal 42050412, decimal 8,933,642.
What flights does 88510A operate?
Mode-S 88510A has broadcast 20 distinct callsigns, including THA961, THA960, THA652, THA653, THA644.