Apparatus

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sensors Mode-S transponder

8851E6

ICAO 24-bit transponder address · allocated to Thailand

Hex
8851E6
Octal
42050746
Decimal
8,933,862
Country
TH
No current signal · last broadcast 9d ago
Flights observed
177
Distinct callsigns
20
Country
TH
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 8851E6.

Country allocation

The ICAO 24-bit address 8851E6 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
THA407 Thai Airways International 22 2026-07-26
THA408 Thai Airways International 18 2026-07-26
THA344 Thai Airways International 15 2026-07-24
THA317 Thai Airways International 14 2026-07-25
THA204 Thai Airways International 10 2026-07-26
THA203 - 10 2026-07-14
THA318 Thai Airways International 9 2026-07-25
THA414 Thai Airways International 6 2026-07-25
THA413 Thai Airways International 6 2026-07-25
THA332 Thai Airways International 6 2026-07-20
THA331 Thai Airways International 6 2026-07-20
THA250 Thai Airways International 5 2026-07-20
THA343 Thai Airways International 4 2026-07-26
THA323 - 4 2026-07-05
THA103 - 4 2026-06-30
THA102 - 4 2026-06-30
THA324 - 3 2026-07-05
THA111 Thai Airways International 3 2026-07-20
THA110 Thai Airways International 3 2026-07-20
THA629 Thai Airways International 2 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THA343 BKK → AMD Jul 26, 14:35 UTCJul 26, 21:30 UTC6h 55m
2026-07-26 THA408 SIN → BKK Jul 26, 10:45 UTCJul 26, 12:50 UTC2h 5m
2026-07-26 THA407 BKK → SIN Jul 26, 07:25 UTCJul 26, 09:20 UTC1h 55m
2026-07-26 THA204 HKT → BKK Jul 26, 01:40 UTCJul 26, 05:00 UTC3h 20m
2026-07-25 THA318 BOM → BKK Jul 25, 19:25 UTCJul 25, 22:00 UTC2h 35m
2026-07-25 THA318 BOM → BKK Jul 25, 18:10 UTCJul 25, 18:25 UTC15m
2026-07-25 THA317 BKK → BOM Jul 25, 16:00 UTCJul 25, 16:15 UTC15m
2026-07-25 THA317 BKK → BOM Jul 25, 12:30 UTCJul 25, 14:50 UTC2h 20m
2026-07-25 THA414 SIN → BKK Jul 25, 08:35 UTCJul 25, 10:55 UTC2h 20m
2026-07-25 THA413 BKK → SIN Jul 25, 04:50 UTCJul 25, 06:55 UTC2h 5m
2026-07-24 THA344 AMD → BKK Jul 24, 14:25 UTCJul 24, 23:35 UTC9h 10m
2026-07-24 THA408 SIN → BKK Jul 24, 10:45 UTCJul 24, 12:45 UTC2h 0m
2026-07-24 THA407 BKK → SIN Jul 24, 07:10 UTCJul 24, 09:15 UTC2h 5m
2026-07-24 THA204 HKT → BKK Jul 24, 01:35 UTCJul 24, 04:50 UTC3h 15m
2026-07-23 THA344 AMD → BKK Jul 23, 14:50 UTCJul 24, 00:00 UTC9h 10m
2026-07-23 THA408 SIN → BKK Jul 23, 10:35 UTCJul 23, 12:40 UTC2h 5m
2026-07-23 THA407 BKK → SIN Jul 23, 07:15 UTCJul 23, 09:20 UTC2h 5m
2026-07-23 THA204 HKT → BKK Jul 23, 01:20 UTCJul 23, 04:45 UTC3h 25m
2026-07-22 THA344 AMD → BKK Jul 22, 14:25 UTCJul 22, 23:40 UTC9h 15m
2026-07-22 THA600 BKK → HKG Jul 22, 03:30 UTCJul 22, 03:40 UTC10m
2026-07-22 THA600 BKK → HKG Jul 22, 01:20 UTCJul 22, 01:50 UTC30m
2026-07-21 THA318 BOM → BKK Jul 21, 18:45 UTCJul 21, 22:40 UTC3h 55m
2026-07-21 THA317 - Jul 21, 16:35 UTCJul 21, 17:10 UTC35m
2026-07-21 THA317 - Jul 21, 13:05 UTCJul 21, 15:30 UTC2h 25m
2026-07-21 THA414 SIN → BKK Jul 21, 08:15 UTCJul 21, 10:20 UTC2h 5m
2026-07-21 THA413 BKK → SIN Jul 21, 04:40 UTCJul 21, 06:35 UTC1h 55m
2026-07-20 THA332 DEL → BKK Jul 20, 22:05 UTCJul 21, 01:55 UTC3h 50m
2026-07-20 THA331 BKK → DEL Jul 20, 16:40 UTCJul 20, 20:40 UTC4h 0m
2026-07-20 THA250 KBV → BKK Jul 20, 11:30 UTCJul 20, 14:25 UTC2h 55m
2026-07-20 THA111 CNX → BKK Jul 20, 08:45 UTCJul 20, 09:45 UTC1h 0m
2026-07-20 THA110 BKK → CNX Jul 20, 06:45 UTCJul 20, 07:40 UTC55m
2026-07-20 THA204 HKT → BKK Jul 20, 01:35 UTCJul 20, 04:50 UTC3h 15m
2026-07-19 THA344 AMD → BKK Jul 19, 14:30 UTCJul 19, 23:55 UTC9h 25m
2026-07-19 THA408 - Jul 19, 10:15 UTCJul 19, 12:10 UTC1h 55m
2026-07-19 THA407 BKK → SIN Jul 19, 08:25 UTCJul 19, 08:55 UTC30m
2026-07-19 THA407 BKK → SIN Jul 19, 07:05 UTCJul 19, 07:30 UTC25m
2026-07-19 THA204 HKT → BKK Jul 19, 01:35 UTCJul 19, 05:10 UTC3h 35m
2026-07-18 THA344 AMD → BKK Jul 18, 14:25 UTCJul 18, 23:25 UTC9h 0m
2026-07-18 THA408 - Jul 18, 10:40 UTCJul 18, 12:35 UTC1h 55m
2026-07-18 THA407 BKK → SIN Jul 18, 08:25 UTCJul 18, 09:00 UTC35m
2026-07-18 THA407 BKK → SIN Jul 18, 07:05 UTCJul 18, 07:15 UTC10m
2026-07-18 THA204 HKT → BKK Jul 18, 01:30 UTCJul 18, 04:35 UTC3h 6m
2026-07-17 THA344 - Jul 17, 14:39 UTCJul 17, 23:50 UTC9h 10m
2026-07-17 THA408 - Jul 17, 10:44 UTCJul 17, 12:50 UTC2h 5m
2026-07-17 THA407 - Jul 17, 08:35 UTCJul 17, 09:15 UTC40m
2026-07-17 THA131 - Jul 17, 03:30 UTCJul 17, 04:35 UTC1h 5m
2026-07-17 THA130 - Jul 17, 01:29 UTCJul 17, 02:34 UTC1h 5m
2026-07-16 THA344 - Jul 16, 15:10 UTCJul 16, 23:55 UTC8h 45m
2026-07-16 THA408 - Jul 16, 10:50 UTCJul 16, 13:10 UTC2h 20m
2026-07-16 THA407 - Jul 16, 08:30 UTCJul 16, 09:35 UTC1h 5m

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.

Mode-S 8851E6 frequently asked

What is Mode-S code 8851E6?
8851E6 is an ICAO 24-bit transponder address. Allocated to Thailand.
Where is Mode-S 8851E6 registered?
Mode-S code 8851E6 is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8851E6 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8851E6, octal 42050746, decimal 8,933,862.
What flights does 8851E6 operate?
Mode-S 8851E6 has broadcast 20 distinct callsigns, including THA407, THA408, THA344, THA317, THA204.