Apparatus

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sensors Mode-S transponder

8851EA

ICAO 24-bit transponder address · allocated to Thailand

Hex
8851EA
Octal
42050752
Decimal
8,933,866
Country
TH
No current signal · last broadcast 9d ago
Flights observed
43
Distinct callsigns
16
Country
TH
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 8851EA.

Country allocation

The ICAO 24-bit address 8851EA 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 16 distinct

Callsign Airline Flights Last seen
THA317 Thai Airways International 6 2026-07-26
THA324 Thai Airways International 5 2026-07-26
THA323 Thai Airways International 5 2026-07-26
THA318 Thai Airways International 5 2026-07-26
THA111 Thai Airways International 3 2026-07-25
THA110 Thai Airways International 3 2026-07-25
THA344 Thai Airways International 2 2026-07-21
THA250 Thai Airways International 2 2026-07-25
THA249 Thai Airways International 2 2026-07-22
THA204 Thai Airways International 2 2026-07-22
THA131 Thai Airways International 2 2026-07-21
THA130 Thai Airways International 2 2026-07-21
THA8905 - 1 2026-06-19
THA314 Thai Airways International 1 2026-07-25
THA313 Thai Airways International 1 2026-07-25
THA203 Thai Airways International 1 2026-07-25

Recent flights last 43

DateFlightRouteTakeoffLandingDuration
2026-07-26 THA318 BOM → BKK Jul 26, 18:50 UTCJul 26, 22:30 UTC3h 40m
2026-07-26 THA317 BKK → BOM Jul 26, 16:55 UTCJul 26, 17:15 UTC20m
2026-07-26 THA317 BKK → BOM Jul 26, 13:25 UTCJul 26, 15:50 UTC2h 25m
2026-07-26 THA324 DEL → BKK Jul 26, 06:25 UTCJul 26, 10:15 UTC3h 51m
2026-07-26 THA323 BKK → DEL Jul 26, 00:55 UTCJul 26, 04:40 UTC3h 45m
2026-07-25 THA314 CCU → BKK Jul 25, 20:55 UTCJul 25, 23:20 UTC2h 25m
2026-07-25 THA313 BKK → CCU Jul 25, 17:25 UTCJul 25, 19:35 UTC2h 10m
2026-07-25 THA250 KBV → BKK Jul 25, 12:15 UTCJul 25, 15:10 UTC2h 55m
2026-07-25 THA111 CNX → BKK Jul 25, 09:00 UTCJul 25, 10:30 UTC1h 30m
2026-07-25 THA110 BKK → CNX Jul 25, 06:50 UTCJul 25, 07:50 UTC1h 0m
2026-07-25 THA203 BKK → HKT Jul 25, 01:45 UTCJul 25, 05:00 UTC3h 15m
2026-07-24 THA318 BOM → BKK Jul 24, 19:40 UTCJul 24, 22:15 UTC2h 35m
2026-07-24 THA318 BOM → BKK Jul 24, 18:25 UTCJul 24, 18:35 UTC10m
2026-07-24 THA317 BKK → BOM Jul 24, 15:50 UTCJul 24, 16:05 UTC15m
2026-07-24 THA317 BKK → BOM Jul 24, 12:25 UTCJul 24, 14:45 UTC2h 20m
2026-07-24 THA324 DEL → BKK Jul 24, 06:20 UTCJul 24, 10:15 UTC3h 55m
2026-07-24 THA323 BKK → DEL Jul 24, 00:45 UTCJul 24, 04:35 UTC3h 50m
2026-07-23 THA318 BOM → BKK Jul 23, 19:40 UTCJul 23, 22:10 UTC2h 30m
2026-07-23 THA318 BOM → BKK Jul 23, 18:20 UTCJul 23, 18:30 UTC10m
2026-07-23 THA317 BKK → BOM Jul 23, 16:00 UTCJul 23, 16:20 UTC20m
2026-07-23 THA317 BKK → BOM Jul 23, 12:25 UTCJul 23, 14:50 UTC2h 25m
2026-07-23 THA324 DEL → BKK Jul 23, 06:40 UTCJul 23, 10:40 UTC4h 0m
2026-07-23 THA323 BKK → DEL Jul 23, 00:55 UTCJul 23, 04:55 UTC4h 0m
2026-07-22 THA249 BKK → KBV Jul 22, 11:50 UTCJul 22, 15:00 UTC3h 10m
2026-07-22 THA204 HKT → BKK Jul 22, 01:30 UTCJul 22, 04:55 UTC3h 25m
2026-07-21 THA344 AMD → BKK Jul 21, 14:15 UTCJul 21, 23:35 UTC9h 20m
2026-07-21 THA131 CEI → BKK Jul 21, 03:05 UTCJul 21, 04:10 UTC1h 5m
2026-07-21 THA130 BKK → CEI Jul 21, 01:20 UTCJul 21, 02:25 UTC1h 5m
2026-07-20 THA344 AMD → BKK Jul 20, 14:20 UTCJul 20, 23:30 UTC9h 10m
2026-07-20 THA324 DEL → BKK Jul 20, 06:35 UTCJul 20, 10:20 UTC3h 45m
2026-07-20 THA323 BKK → DEL Jul 20, 00:55 UTCJul 20, 04:50 UTC3h 55m
2026-07-19 THA324 DEL → BKK Jul 19, 06:30 UTCJul 19, 10:20 UTC3h 50m
2026-07-19 THA323 BKK → DEL Jul 19, 01:00 UTCJul 19, 04:45 UTC3h 45m
2026-07-18 THA249 - Jul 18, 11:40 UTCJul 18, 14:40 UTC3h 0m
2026-07-18 THA111 - Jul 18, 08:45 UTCJul 18, 09:45 UTC1h 0m
2026-07-18 THA110 BKK → CNX Jul 18, 06:45 UTCJul 18, 07:45 UTC1h 0m
2026-07-18 THA131 - Jul 18, 03:20 UTCJul 18, 04:25 UTC1h 5m
2026-07-18 THA130 BKK → CEI Jul 18, 01:25 UTCJul 18, 02:29 UTC1h 5m
2026-07-17 THA250 - Jul 17, 11:39 UTCJul 17, 15:00 UTC3h 20m
2026-07-17 THA111 - Jul 17, 08:49 UTCJul 17, 09:50 UTC1h 0m
2026-07-17 THA110 - Jul 17, 06:50 UTCJul 17, 07:44 UTC55m
2026-07-17 THA204 - Jul 17, 01:25 UTCJul 17, 04:35 UTC3h 10m
2026-06-19 THA8905 XFW → BKK Jun 19, 11:34 UTCJun 19, 23:54 UTC12h 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.

Mode-S 8851EA frequently asked

What is Mode-S code 8851EA?
8851EA is an ICAO 24-bit transponder address. Allocated to Thailand.
Where is Mode-S 8851EA registered?
Mode-S code 8851EA is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8851EA 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 8851EA, octal 42050752, decimal 8,933,866.
What flights does 8851EA operate?
Mode-S 8851EA has broadcast 16 distinct callsigns, including THA317, THA324, THA323, THA318, THA111.