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sensors Mode-S transponder

88510D

ICAO 24-bit transponder address · allocated to Thailand

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

Hex
88510D
Octal
42050415
Decimal
8,933,645
Country
TH
Tail
HS-THM
Type
A359
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
260
Distinct callsigns
20
Country
TH
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 88510D.

Country allocation

The ICAO 24-bit address 88510D 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
THA955 Thai Airways International 17 2026-07-24
THA954 Thai Airways International 15 2026-07-23
THA960 Thai Airways International 13 2026-07-25
THA961 Thai Airways International 12 2026-07-26
THA659 - 11 2026-07-19
THA658 - 10 2026-07-18
THA410 - 10 2026-07-14
THA409 - 9 2026-07-14
THA657 Thai Airways International 8 2026-06-20
THA661 Thai Airways International 7 2026-07-19
THA660 Thai Airways International 7 2026-07-19
THA653 - 7 2026-07-10
THA432 Thai Airways International 7 2026-07-21
THA656 Thai Airways International 6 2026-06-19
THA652 - 6 2026-07-10
THA615 - 6 2026-07-23
THA435 - 6 2026-07-02
THA941 - 4 2026-07-09
THA940 - 4 2026-07-08
THA668 - 4 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THA961 ARN → BKK Jul 26, 11:55 UTCJul 26, 21:15 UTC9h 20m
2026-07-25 THA960 BKK → ARN Jul 25, 17:55 UTCJul 26, 05:05 UTC11h 10m
2026-07-25 THA404 SIN → BKK Jul 25, 05:30 UTCJul 25, 07:30 UTC2h 0m
2026-07-25 THA403 BKK → SIN Jul 25, 01:25 UTCJul 25, 03:15 UTC1h 50m
2026-07-24 THA955 OSL → BKK Jul 24, 12:10 UTCJul 24, 22:55 UTC10h 45m
2026-07-23 THA954 BKK → OSL Jul 23, 17:30 UTCJul 24, 05:15 UTC11h 45m
2026-07-23 THA615 - Jul 23, 09:55 UTCJul 23, 14:00 UTC4h 5m
2026-07-23 THA614 BKK → PEK Jul 23, 03:15 UTCJul 23, 04:45 UTC1h 30m
2026-07-22 THA645 NGO → BKK Jul 22, 03:05 UTCJul 22, 05:25 UTC2h 20m
2026-07-21 THA644 BKK → NGO Jul 21, 17:50 UTCJul 21, 21:50 UTC4h 0m
2026-07-21 THA432 DPS → BKK Jul 21, 02:45 UTCJul 21, 12:30 UTC9h 45m
2026-07-20 THA937 AMS → BKK Jul 20, 12:40 UTCJul 20, 23:05 UTC10h 25m
2026-07-19 THA936 - Jul 19, 22:55 UTCJul 20, 10:20 UTC11h 25m
2026-07-19 THA661 HND → BKK Jul 19, 20:35 UTCJul 19, 20:55 UTC20m
2026-07-19 THA661 HND → BKK Jul 19, 15:35 UTCJul 19, 18:55 UTC3h 20m
2026-07-19 THA660 BKK → HND Jul 19, 09:35 UTCJul 19, 13:20 UTC3h 45m
2026-07-19 THA660 BKK → HND Jul 19, 07:25 UTCJul 19, 07:35 UTC10m
2026-07-19 THA659 - Jul 19, 05:30 UTCJul 19, 05:40 UTC10m
2026-07-19 THA659 - Jul 19, 01:00 UTCJul 19, 03:35 UTC2h 35m
2026-07-18 THA658 - Jul 18, 18:45 UTCJul 18, 21:40 UTC2h 55m
2026-07-18 THA658 - Jul 18, 16:35 UTCJul 18, 16:50 UTC15m
2026-07-18 THA669 - Jul 18, 10:50 UTCJul 18, 11:10 UTC20m
2026-07-18 THA668 - Jul 18, 05:55 UTCJul 18, 06:05 UTC10m
2026-07-18 THA668 - Jul 18, 03:50 UTCJul 18, 04:00 UTC10m
2026-07-17 THA955 OSL → BKK Jul 17, 12:15 UTCJul 17, 23:30 UTC11h 15m
2026-07-16 THA954 - Jul 16, 18:05 UTCJul 17, 05:30 UTC11h 25m
2026-07-16 THA615 - Jul 16, 13:30 UTCJul 16, 13:54 UTC25m
2026-07-16 THA615 - Jul 16, 09:50 UTCJul 16, 12:30 UTC2h 40m
2026-07-16 THA614 - Jul 16, 03:20 UTCJul 16, 04:55 UTC1h 35m
2026-07-15 THA955 - Jul 15, 12:05 UTCJul 15, 23:05 UTC11h 0m
2026-07-14 THA954 BKK → OSL Jul 14, 17:40 UTCJul 15, 05:10 UTC11h 29m
2026-07-14 THA410 - Jul 14, 14:35 UTCJul 14, 15:05 UTC30m
2026-07-14 THA410 - Jul 14, 13:05 UTCJul 14, 13:30 UTC25m
2026-07-14 THA409 - Jul 14, 10:50 UTCJul 14, 11:30 UTC40m
2026-07-14 THA404 - Jul 14, 04:45 UTCJul 14, 06:55 UTC2h 10m
2026-07-14 THA403 - Jul 14, 02:30 UTCJul 14, 03:15 UTC45m
2026-07-14 THA403 - Jul 14, 01:20 UTCJul 14, 01:35 UTC15m
2026-07-13 THA961 - Jul 13, 11:50 UTCJul 13, 22:40 UTC10h 50m
2026-07-12 THA960 - Jul 12, 17:50 UTCJul 13, 05:10 UTC11h 20m
2026-07-12 THA619 - Jul 12, 04:45 UTCJul 12, 10:55 UTC6h 10m
2026-07-12 THA618 - Jul 12, 03:40 UTCJul 12, 03:50 UTC10m
2026-07-11 THA961 - Jul 11, 12:15 UTCJul 11, 22:45 UTC10h 30m
2026-07-10 THA960 - Jul 10, 17:55 UTCJul 11, 05:15 UTC11h 20m
2026-07-10 THA653 - Jul 10, 08:20 UTCJul 10, 13:15 UTC4h 55m
2026-07-10 THA652 - Jul 10, 01:20 UTCJul 10, 06:25 UTC5h 5m
2026-07-09 THA941 - Jul 9, 12:20 UTCJul 9, 22:25 UTC10h 5m
2026-07-08 THA940 - Jul 8, 18:25 UTCJul 9, 05:10 UTC10h 45m
2026-07-08 THA432 - Jul 8, 02:50 UTCJul 8, 13:30 UTC10h 40m
2026-07-07 THA941 MXP → BKK Jul 7, 12:25 UTCJul 7, 22:35 UTC10h 10m
2026-07-06 THA940 BKK → MXP Jul 6, 18:15 UTCJul 7, 05:15 UTC11h 0m

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

Mode-S 88510D frequently asked

What is Mode-S code 88510D?
88510D is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-THM.
Where is Mode-S 88510D registered?
Mode-S code 88510D is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88510D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88510D, octal 42050415, decimal 8,933,645.
What flights does 88510D operate?
Mode-S 88510D has broadcast 20 distinct callsigns, including THA955, THA954, THA960, THA961, THA659.