sensors Mode-S transponder
881BB6
ICAO 24-bit transponder address · allocated to Thailand
Currently assigned to F20K-10/64
- Hex
- 881BB6
- Octal
- 42015666
- Decimal
- 8,919,990
- Country
- TH
- Tail
- F20K-10/64
- Type
- DA42
- Flights observed
- 32
- Distinct callsigns
- 15
- Country
- TH
- Last broadcast
- 7h ago
Last known position
Country allocation
The ICAO 24-bit address 881BB6 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CHT208 | - | 6 | 2026-06-02 |
| CHT204 | - | 6 | 2026-06-10 |
| CHT205 | - | 3 | 2026-06-09 |
| CHT830 | - | 2 | 2026-05-08 |
| CHT206 | - | 2 | 2026-06-04 |
| CHT202 | - | 2 | 2026-06-12 |
| CHT04 | - | 2 | 2026-05-06 |
| CHRT304 | - | 2 | 2026-04-27 |
| RB974 | - | 1 | 2026-04-23 |
| HUMBLE | - | 1 | 2026-05-26 |
| CHT311S | - | 1 | 2026-04-30 |
| CHT209 | - | 1 | 2026-05-14 |
| CHT105 | - | 1 | 2026-05-21 |
| CHT103 | - | 1 | 2026-06-05 |
| CHRT105 | - | 1 | 2026-04-28 |
Recent flights last 32
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-12 | CHT202 | - | Jun 12, 02:40 UTC | Jun 12, 02:55 UTC | 15m |
| 2026-06-11 | CHT202 | - | Jun 11, 03:00 UTC | Jun 11, 03:15 UTC | 15m |
| 2026-06-10 | CHT204 | - | Jun 10, 05:45 UTC | Jun 10, 06:00 UTC | 15m |
| 2026-06-10 | CHT204 | - | Jun 10, 01:25 UTC | Jun 10, 01:40 UTC | 15m |
| 2026-06-09 | CHT205 | - | Jun 9, 03:45 UTC | Jun 9, 03:55 UTC | 10m |
| 2026-06-09 | CHT205 | - | Jun 9, 01:45 UTC | Jun 9, 02:05 UTC | 20m |
| 2026-06-08 | CHT204 | - | Jun 8, 05:25 UTC | Jun 8, 05:35 UTC | 10m |
| 2026-06-08 | CHT204 | - | Jun 8, 02:50 UTC | Jun 8, 03:00 UTC | 10m |
| 2026-06-08 | CHT204 | - | Jun 8, 01:10 UTC | Jun 8, 01:25 UTC | 15m |
| 2026-06-05 | CHT103 | - | Jun 5, 02:05 UTC | Jun 5, 03:55 UTC | 1h 50m |
| 2026-06-04 | CHT206 | - | Jun 4, 06:40 UTC | Jun 4, 07:25 UTC | 45m |
| 2026-06-04 | CHT206 | - | Jun 4, 02:05 UTC | Jun 4, 03:30 UTC | 1h 25m |
| 2026-06-02 | CHT208 | - | Jun 2, 02:00 UTC | Jun 2, 02:20 UTC | 20m |
| 2026-05-29 | CHT208 | - | May 29, 02:15 UTC | May 29, 02:30 UTC | 15m |
| 2026-05-27 | CHT208 | - | May 27, 08:20 UTC | May 27, 08:30 UTC | 10m |
| 2026-05-27 | CHT208 | - | May 27, 06:49 UTC | May 27, 07:10 UTC | 20m |
| 2026-05-27 | CHT208 | - | May 27, 04:04 UTC | May 27, 04:34 UTC | 30m |
| 2026-05-27 | CHT208 | - | May 27, 02:39 UTC | May 27, 02:54 UTC | 15m |
| 2026-05-26 | HUMBLE | - | May 26, 03:09 UTC | May 26, 03:50 UTC | 40m |
| 2026-05-25 | CHT204 | - | May 25, 06:35 UTC | May 25, 06:45 UTC | 10m |
| 2026-05-21 | CHT105 | - | May 21, 00:55 UTC | May 21, 01:05 UTC | 10m |
| 2026-05-14 | CHT209 | - | May 14, 03:55 UTC | May 14, 04:15 UTC | 20m |
| 2026-05-08 | CHT830 | - | May 8, 03:04 UTC | May 8, 03:39 UTC | 35m |
| 2026-05-07 | CHT830 | - | May 7, 01:40 UTC | May 7, 03:05 UTC | 1h 25m |
| 2026-05-06 | CHT04 | - | May 6, 03:00 UTC | May 6, 03:10 UTC | 10m |
| 2026-05-05 | CHT04 | - | May 5, 01:25 UTC | May 5, 01:45 UTC | 20m |
| 2026-04-30 | CHT311S | - | Apr 30, 02:15 UTC | Apr 30, 02:30 UTC | 15m |
| 2026-04-29 | CHT205 | - | Apr 29, 01:40 UTC | Apr 29, 01:59 UTC | 20m |
| 2026-04-28 | CHRT105 | - | Apr 28, 02:25 UTC | Apr 28, 02:40 UTC | 15m |
| 2026-04-27 | CHRT304 | - | Apr 27, 04:40 UTC | Apr 27, 05:25 UTC | 45m |
| 2026-04-27 | CHRT304 | - | Apr 27, 02:35 UTC | Apr 27, 03:15 UTC | 40m |
| 2026-04-23 | RB974 | - | Apr 23, 07:05 UTC | Apr 23, 07:15 UTC | 10m |
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 F20K-10/64 page for operator, model, and routing details .