sensors Mode-S transponder
885175
ICAO 24-bit transponder address · allocated to Thailand
Currently assigned to HS-TKU · BOEING 777-300ER
- Hex
- 885175
- Octal
- 42050565
- Decimal
- 8,933,749
- Country
- TH
- Tail
- HS-TKU
- Type
- B77W
- Flights observed
- 106
- Distinct callsigns
- 20
- Country
- TH
- Last broadcast
- 12d ago
Last known position
Country allocation
The ICAO 24-bit address 885175 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 |
|---|---|---|---|
| THA971 | Thai Airways International | 9 | 2026-05-11 |
| THA970 | Thai Airways International | 9 | 2026-05-10 |
| THA600 | Thai Airways International | 9 | 2026-05-12 |
| THA917 | Thai Airways International | 8 | 2026-05-04 |
| THA916 | Thai Airways International | 8 | 2026-05-04 |
| THA639 | Thai Airways International | 8 | 2026-05-10 |
| THA638 | Thai Airways International | 8 | 2026-05-10 |
| THA601 | Thai Airways International | 8 | 2026-05-12 |
| THA951 | Thai Airways International | 5 | 2026-05-13 |
| THA950 | Thai Airways International | 3 | 2026-05-12 |
| THA923 | Thai Airways International | 3 | 2026-05-14 |
| THA922 | Thai Airways International | 3 | 2026-05-14 |
| THA632 | - | 3 | 2026-04-13 |
| THA316 | Thai Airways International | 3 | 2026-04-15 |
| THA315 | - | 3 | 2026-04-15 |
| THA921 | Thai Airways International | 2 | 2026-04-27 |
| THA920 | Thai Airways International | 2 | 2026-04-26 |
| THA683 | Thai Airways International | 2 | 2026-05-06 |
| THA682 | Thai Airways International | 2 | 2026-05-05 |
| THA633 | - | 2 | 2026-04-13 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-18 | THA8408 | - | May 18, 02:20 UTC | May 18, 02:45 UTC | 25m |
| 2026-05-17 | THA673 | KIX → BKK | May 17, 08:55 UTC | May 17, 13:55 UTC | 5h 0m |
| 2026-05-17 | THA672 | BKK → KIX | May 17, 01:45 UTC | May 17, 06:55 UTC | 5h 10m |
| 2026-05-16 | THA931 | CDG → BKK | May 16, 12:01 UTC | May 16, 22:40 UTC | 10h 39m |
| 2026-05-15 | THA930 | BKK → CDG | May 15, 17:30 UTC | May 15, 17:45 UTC | 15m |
| 2026-05-14 | THA923 | FRA → BKK | May 14, 19:20 UTC | May 15, 04:05 UTC | 8h 45m |
| 2026-05-14 | THA922 | BKK → FRA | May 14, 05:40 UTC | May 14, 17:10 UTC | 11h 30m |
| 2026-05-13 | THA951 | CPH → BKK | May 13, 14:30 UTC | May 13, 22:50 UTC | 8h 20m |
| 2026-05-13 | THA951 | CPH → BKK | May 13, 12:40 UTC | May 13, 14:20 UTC | 1h 40m |
| 2026-05-12 | THA950 | BKK → CPH | May 12, 18:15 UTC | May 12, 22:10 UTC | 3h 55m |
| 2026-05-12 | THA601 | HKG → BKK | May 12, 07:00 UTC | May 12, 07:50 UTC | 50m |
| 2026-05-12 | THA601 | HKG → BKK | May 12, 05:20 UTC | May 12, 05:35 UTC | 15m |
| 2026-05-12 | THA600 | BKK → HKG | May 12, 03:25 UTC | May 12, 03:45 UTC | 20m |
| 2026-05-11 | THA971 | ZRH → BKK | May 11, 11:55 UTC | May 11, 21:50 UTC | 9h 55m |
| 2026-05-10 | THA970 | BKK → ZRH | May 10, 18:35 UTC | May 11, 06:05 UTC | 11h 30m |
| 2026-05-10 | THA639 | HKG → BKK | May 10, 13:05 UTC | May 10, 13:55 UTC | 50m |
| 2026-05-10 | THA639 | HKG → BKK | May 10, 11:30 UTC | May 10, 11:45 UTC | 15m |
| 2026-05-10 | THA638 | BKK → HKG | May 10, 09:40 UTC | May 10, 09:50 UTC | 10m |
| 2026-05-10 | THA638 | BKK → HKG | May 10, 07:34 UTC | May 10, 08:15 UTC | 40m |
| 2026-05-09 | THA951 | CPH → BKK | May 9, 13:15 UTC | May 9, 23:25 UTC | 10h 10m |
| 2026-05-08 | THA950 | BKK → CPH | May 8, 18:10 UTC | May 9, 05:35 UTC | 11h 25m |
| 2026-05-08 | THA601 | HKG → BKK | May 8, 05:29 UTC | May 8, 07:59 UTC | 2h 30m |
| 2026-05-08 | THA600 | BKK → HKG | May 8, 03:35 UTC | May 8, 03:39 UTC | 5m |
| 2026-05-08 | THA600 | BKK → HKG | May 8, 01:29 UTC | May 8, 02:09 UTC | 40m |
| 2026-05-07 | THA971 | ZRH → BKK | May 7, 11:55 UTC | May 7, 21:45 UTC | 9h 50m |
| 2026-05-06 | THA970 | BKK → ZRH | May 6, 18:30 UTC | May 7, 05:45 UTC | 11h 15m |
| 2026-05-06 | THA683 | HND → BKK | May 6, 02:15 UTC | May 6, 08:25 UTC | 6h 10m |
| 2026-05-05 | THA682 | BKK → HND | May 5, 16:00 UTC | May 5, 21:10 UTC | 5h 10m |
| 2026-05-04 | THA917 | LHR → BKK | May 4, 20:45 UTC | May 5, 07:40 UTC | 10h 55m |
| 2026-05-04 | THA916 | BKK → LHR | May 4, 06:05 UTC | May 4, 07:15 UTC | 1h 10m |
| 2026-05-03 | THA951 | CPH → BKK | May 3, 12:35 UTC | May 3, 23:00 UTC | 10h 25m |
| 2026-05-02 | THA950 | BKK → CPH | May 2, 18:10 UTC | May 3, 05:40 UTC | 11h 29m |
| 2026-05-01 | THA623 | KIX → BKK | May 1, 17:45 UTC | May 2, 08:40 UTC | 14h 55m |
| 2026-05-01 | THA639 | HKG → BKK | May 1, 13:25 UTC | May 1, 14:05 UTC | 40m |
| 2026-05-01 | THA639 | HKG → BKK | May 1, 11:40 UTC | May 1, 11:50 UTC | 10m |
| 2026-05-01 | THA638 | BKK → HKG | May 1, 09:50 UTC | May 1, 09:55 UTC | 5m |
| 2026-05-01 | THA638 | BKK → HKG | May 1, 07:40 UTC | May 1, 08:10 UTC | 30m |
| 2026-04-30 | THA923 | FRA → BKK | Apr 30, 19:40 UTC | May 1, 05:55 UTC | 10h 15m |
| 2026-04-30 | THA922 | BKK → FRA | Apr 30, 06:05 UTC | Apr 30, 17:40 UTC | 11h 35m |
| 2026-04-28 | THA923 | FRA → BKK | Apr 28, 20:25 UTC | Apr 29, 06:29 UTC | 10h 5m |
| 2026-04-28 | THA922 | BKK → FRA | Apr 28, 05:55 UTC | Apr 28, 17:25 UTC | 11h 30m |
| 2026-04-27 | THA921 | FRA → BKK | Apr 27, 12:55 UTC | Apr 27, 23:30 UTC | 10h 35m |
| 2026-04-26 | THA920 | BKK → FRA | Apr 26, 17:45 UTC | Apr 27, 05:10 UTC | 11h 25m |
| 2026-04-26 | THA639 | HKG → BKK | Apr 26, 13:30 UTC | Apr 26, 14:05 UTC | 35m |
| 2026-04-26 | THA639 | HKG → BKK | Apr 26, 11:40 UTC | Apr 26, 11:50 UTC | 10m |
| 2026-04-26 | THA638 | BKK → HKG | Apr 26, 09:25 UTC | Apr 26, 09:30 UTC | 5m |
| 2026-04-26 | THA638 | BKK → HKG | Apr 26, 07:20 UTC | Apr 26, 07:45 UTC | 25m |
| 2026-04-25 | THA971 | ZRH → BKK | Apr 25, 11:45 UTC | Apr 25, 18:50 UTC | 7h 5m |
| 2026-04-24 | THA970 | BKK → ZRH | Apr 24, 18:30 UTC | Apr 25, 06:20 UTC | 11h 50m |
| 2026-04-24 | THA683 | HND → BKK | Apr 24, 02:10 UTC | Apr 24, 08:30 UTC | 6h 20m |
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-TKU page for operator, model, and routing details .