Apparatus

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sensors Mode-S transponder

885170

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-TKP · BOEING 777-300ER

Hex
885170
Octal
42050560
Decimal
8,933,744
Country
TH
Tail
HS-TKP
Type
B77W
No current signal · last broadcast 1h ago
Flights observed
104
Distinct callsigns
20
Country
TH
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 885170.

Country allocation

The ICAO 24-bit address 885170 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
THA951 Thai Airways International 12 2026-05-28
THA917 Thai Airways International 9 2026-05-19
THA916 Thai Airways International 9 2026-05-19
THA950 Thai Airways International 8 2026-05-27
THA921 Thai Airways International 5 2026-05-24
THA931 Thai Airways International 4 2026-05-18
THA930 Thai Airways International 4 2026-05-18
THA923 Thai Airways International 4 2026-05-29
THA683 Thai Airways International 4 2026-05-10
THA682 Thai Airways International 4 2026-05-09
THA638 Thai Airways International 4 2026-05-23
THA623 Thai Airways International 4 2026-05-14
THA601 Thai Airways International 4 2026-05-01
THA922 Thai Airways International 3 2026-05-29
THA920 Thai Airways International 3 2026-05-23
THA639 Thai Airways International 3 2026-05-23
THA673 Thai Airways International 2 2026-05-12
THA622 Thai Airways International 2 2026-05-13
THA614 Thai Airways International 2 2026-04-25
THA600 Thai Airways International 2 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THA923 FRA → BKK May 29, 19:25 UTCMay 30, 03:45 UTC8h 20m
2026-05-29 THA922 BKK → FRA May 29, 05:45 UTCMay 29, 17:15 UTC11h 30m
2026-05-28 THA951 CPH → BKK May 28, 13:10 UTCMay 28, 23:05 UTC9h 55m
2026-05-27 THA950 BKK → CPH May 27, 18:25 UTCMay 28, 06:10 UTC11h 45m
2026-05-26 THA971 ZRH → BKK May 26, 12:00 UTCMay 26, 21:59 UTC10h 0m
2026-05-25 THA970 BKK → ZRH May 25, 18:25 UTCMay 25, 19:25 UTC1h 0m
2026-05-24 THA921 FRA → BKK May 24, 23:00 UTCMay 24, 23:20 UTC20m
2026-05-24 THA921 FRA → BKK May 24, 13:10 UTCMay 24, 21:35 UTC8h 25m
2026-05-23 THA920 BKK → FRA May 23, 17:10 UTCMay 23, 18:05 UTC55m
2026-05-23 THA639 HKG → BKK May 23, 13:10 UTCMay 23, 13:50 UTC40m
2026-05-23 THA639 HKG → BKK May 23, 11:35 UTCMay 23, 11:45 UTC10m
2026-05-23 THA638 BKK → HKG May 23, 09:15 UTCMay 23, 09:40 UTC25m
2026-05-23 THA638 BKK → HKG May 23, 07:15 UTCMay 23, 07:50 UTC35m
2026-05-22 THA921 FRA → BKK May 22, 13:10 UTCMay 22, 23:25 UTC10h 15m
2026-05-21 THA920 BKK → FRA May 21, 17:15 UTCMay 22, 04:15 UTC11h 0m
2026-05-19 THA917 LHR → BKK May 19, 20:45 UTCMay 20, 08:05 UTC11h 21m
2026-05-19 THA916 BKK → LHR May 19, 06:05 UTCMay 19, 07:10 UTC1h 5m
2026-05-18 THA931 CDG → BKK May 18, 11:50 UTCMay 18, 22:50 UTC10h 59m
2026-05-18 THA930 BKK → CDG May 18, 04:40 UTCMay 18, 05:05 UTC25m
2026-05-17 THA930 BKK → CDG May 17, 17:30 UTCMay 18, 01:35 UTC8h 5m
2026-05-16 THA923 FRA → BKK May 16, 19:25 UTCMay 17, 05:35 UTC10h 10m
2026-05-16 THA922 BKK → FRA May 16, 05:46 UTCMay 16, 06:45 UTC1h 0m
2026-05-15 THA951 CPH → BKK May 15, 12:25 UTCMay 15, 23:00 UTC10h 34m
2026-05-14 THA950 BKK → CPH May 14, 18:15 UTCMay 15, 05:20 UTC11h 5m
2026-05-14 THA623 KIX → BKK May 14, 03:30 UTCMay 14, 08:55 UTC5h 25m
2026-05-13 THA622 BKK → KIX May 13, 17:20 UTCMay 13, 22:10 UTC4h 50m
2026-05-12 THA673 KIX → BKK May 12, 15:05 UTCMay 12, 20:20 UTC5h 15m
2026-05-11 THA951 CPH → BKK May 11, 13:15 UTCMay 12, 06:45 UTC17h 31m
2026-05-10 THA950 BKK → CPH May 10, 18:09 UTCMay 11, 05:45 UTC11h 35m
2026-05-10 THA683 HND → BKK May 10, 01:55 UTCMay 10, 08:00 UTC6h 5m
2026-05-09 THA682 BKK → HND May 9, 16:05 UTCMay 9, 21:19 UTC5h 15m
2026-05-09 THA673 KIX → BKK May 9, 08:35 UTCMay 9, 13:55 UTC5h 20m
2026-05-09 THA672 BKK → KIX May 9, 01:45 UTCMay 9, 06:45 UTC5h 0m
2026-05-08 THA683 HND → BKK May 8, 01:55 UTCMay 8, 08:05 UTC6h 10m
2026-05-07 THA682 BKK → HND May 7, 16:10 UTCMay 7, 21:35 UTC5h 25m
2026-05-06 THA917 LHR → BKK May 6, 20:45 UTCMay 7, 06:10 UTC9h 25m
2026-05-06 THA916 BKK → LHR May 6, 06:05 UTCMay 6, 18:20 UTC12h 15m
2026-05-05 THA683 HND → BKK May 5, 02:05 UTCMay 5, 08:25 UTC6h 20m
2026-05-04 THA682 BKK → HND May 4, 16:05 UTCMay 4, 21:10 UTC5h 6m
2026-05-04 THA923 FRA → BKK May 4, 05:05 UTCMay 4, 05:25 UTC20m
2026-05-03 THA923 FRA → BKK May 3, 19:10 UTCMay 4, 04:00 UTC8h 50m
2026-05-03 THA922 BKK → FRA May 3, 05:45 UTCMay 3, 06:45 UTC1h 0m
2026-05-02 THA683 HND → BKK May 2, 02:15 UTCMay 2, 08:25 UTC6h 10m
2026-05-01 THA682 BKK → HND May 1, 16:05 UTCMay 1, 21:25 UTC5h 20m
2026-05-01 THA601 HKG → BKK May 1, 07:15 UTCMay 1, 07:50 UTC35m
2026-05-01 THA601 HKG → BKK May 1, 05:30 UTCMay 1, 05:40 UTC10m
2026-05-01 THA600 BKK → HKG May 1, 03:30 UTCMay 1, 03:35 UTC5m
2026-05-01 THA600 BKK → HKG May 1, 01:25 UTCMay 1, 01:55 UTC30m
2026-04-29 THA623 KIX → BKK Apr 29, 17:40 UTCApr 30, 08:55 UTC15h 14m
2026-04-29 THA623 KIX → BKK Apr 29, 03:45 UTCApr 29, 09:05 UTC5h 21m

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

Mode-S 885170 frequently asked

What is Mode-S code 885170?
885170 is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-TKP.
Where is Mode-S 885170 registered?
Mode-S code 885170 is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 885170 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 885170, octal 42050560, decimal 8,933,744.
What flights does 885170 operate?
Mode-S 885170 has broadcast 20 distinct callsigns, including THA951, THA917, THA916, THA950, THA921.