Apparatus

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sensors Mode-S transponder

881421

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-EAA · AIRBUS A-321neo

Hex
881421
Octal
42012041
Decimal
8,918,049
Country
TH
Tail
HS-EAA
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
196
Distinct callsigns
20
Country
TH
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 881421.

Country allocation

The ICAO 24-bit address 881421 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
AIQ3211 Thai AirAsia 16 2026-05-29
AIQ3429 Thai AirAsia 15 2026-05-29
AIQ3440 Thai AirAsia 14 2026-05-29
AIQ3439 Thai AirAsia 14 2026-05-29
AIQ3430 Thai AirAsia 14 2026-05-29
AIQ3438 Thai AirAsia 6 2026-05-25
AIQ3428 Thai AirAsia 6 2026-05-25
AIQ3427 Thai AirAsia 6 2026-05-25
AIQ3212 Thai AirAsia 6 2026-05-28
AIQ3103 Thai AirAsia 6 2026-05-28
AIQ231 Thai AirAsia 6 2026-04-30
AIQ3437 Thai AirAsia 5 2026-05-01
AIQ3102 Thai AirAsia 5 2026-05-27
AIQ3092 Thai AirAsia 5 2026-05-09
AIQ655 Thai AirAsia 4 2026-05-25
AIQ3208 Thai AirAsia 4 2026-05-07
AIQ3207 Thai AirAsia 4 2026-05-07
AIQ3091 Thai AirAsia 4 2026-05-01
AIQ237 Thai AirAsia 4 2026-04-16
AIQ230 Thai AirAsia 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AIQ3213 DMK → KBV May 29, 23:55 UTCMay 30, 00:15 UTC20m
2026-05-29 AIQ3430 CNX → DMK May 29, 13:40 UTCMay 29, 14:35 UTC55m
2026-05-29 AIQ3429 DMK → CNX May 29, 11:55 UTCMay 29, 12:45 UTC50m
2026-05-29 AIQ3440 CNX → DMK May 29, 10:00 UTCMay 29, 10:55 UTC55m
2026-05-29 AIQ3439 DMK → CNX May 29, 08:15 UTCMay 29, 09:05 UTC50m
2026-05-29 AIQ3211 KBV → DMK May 29, 03:45 UTCMay 29, 07:00 UTC3h 15m
2026-05-28 AIQ3103 HDY → DMK May 28, 23:30 UTCMay 29, 02:50 UTC3h 20m
2026-05-28 AIQ3430 CNX → DMK May 28, 13:20 UTCMay 28, 14:15 UTC55m
2026-05-28 AIQ3429 DMK → CNX May 28, 11:35 UTCMay 28, 12:25 UTC50m
2026-05-28 AIQ3440 CNX → DMK May 28, 09:45 UTCMay 28, 10:40 UTC55m
2026-05-28 AIQ3439 DMK → CNX May 28, 07:55 UTCMay 28, 08:45 UTC50m
2026-05-28 AIQ3212 DMK → KBV May 28, 03:35 UTCMay 28, 06:40 UTC3h 5m
2026-05-27 AIQ3102 DMK → HDY May 27, 23:30 UTCMay 28, 02:35 UTC3h 5m
2026-05-27 AIQ3430 CNX → DMK May 27, 13:10 UTCMay 27, 14:05 UTC55m
2026-05-27 AIQ3429 DMK → CNX May 27, 11:25 UTCMay 27, 12:00 UTC35m
2026-05-27 AIQ3440 CNX → DMK May 27, 09:35 UTCMay 27, 10:25 UTC50m
2026-05-27 AIQ3439 DMK → CNX May 27, 07:55 UTCMay 27, 08:50 UTC55m
2026-05-27 AIQ3211 KBV → DMK May 27, 03:45 UTCMay 27, 06:40 UTC2h 55m
2026-05-26 AIQ3102 DMK → HDY May 26, 23:19 UTCMay 27, 02:24 UTC3h 5m
2026-05-26 AIQ3430 CNX → DMK May 26, 13:19 UTCMay 26, 14:09 UTC50m
2026-05-26 AIQ3429 DMK → CNX May 26, 11:34 UTCMay 26, 12:30 UTC55m
2026-05-26 AIQ3440 CNX → DMK May 26, 09:49 UTCMay 26, 10:44 UTC55m
2026-05-26 AIQ3439 DMK → CNX May 26, 08:04 UTCMay 26, 08:59 UTC55m
2026-05-26 AIQ3211 KBV → DMK May 26, 03:40 UTCMay 26, 06:54 UTC3h 15m
2026-05-25 AIQ3214 KBV → DMK May 25, 23:35 UTCMay 26, 02:29 UTC2h 55m
2026-05-25 AIQ3010 HKT → DMK May 25, 12:10 UTCMay 25, 15:10 UTC3h 0m
2026-05-25 AIQ655 SGN → DMK May 25, 07:15 UTCMay 25, 10:45 UTC3h 30m
2026-05-25 AIQ3428 CNX → DMK May 25, 05:20 UTCMay 25, 06:15 UTC55m
2026-05-25 AIQ3427 DMK → CNX May 25, 03:30 UTCMay 25, 04:20 UTC50m
2026-05-25 AIQ3438 CNX → DMK May 25, 01:55 UTCMay 25, 02:25 UTC30m
2026-05-18 AIQ3430 CNX → DMK May 18, 13:25 UTCMay 18, 14:20 UTC55m
2026-05-18 AIQ3429 DMK → CNX May 18, 11:40 UTCMay 18, 12:40 UTC1h 0m
2026-05-18 AIQ3440 CNX → DMK May 18, 09:40 UTCMay 18, 10:40 UTC1h 0m
2026-05-18 AIQ3439 DMK → CNX May 18, 07:55 UTCMay 18, 08:45 UTC50m
2026-05-18 AIQ3212 DMK → KBV May 18, 03:50 UTCMay 18, 06:45 UTC2h 55m
2026-05-17 AIQ3102 DMK → HDY May 17, 23:20 UTCMay 18, 02:35 UTC3h 15m
2026-05-17 AIQ3232 URT → DMK May 17, 11:40 UTCMay 17, 12:25 UTC45m
2026-05-17 AIQ3231 DMK → URT May 17, 09:50 UTCMay 17, 10:30 UTC40m
2026-05-17 AIQ3426 CNX → DMK May 17, 08:05 UTCMay 17, 08:55 UTC50m
2026-05-17 AIQ3425 DMK → CNX May 17, 06:25 UTCMay 17, 07:15 UTC50m
2026-05-17 AIQ3436 CNX → DMK May 17, 04:10 UTCMay 17, 05:00 UTC50m
2026-05-17 AIQ3435 DMK → CNX May 17, 02:35 UTCMay 17, 03:25 UTC50m
2026-05-11 AIQ3215 DMK → KBV May 11, 08:50 UTCMay 11, 11:55 UTC3h 5m
2026-05-11 AIQ3240 URT → DMK May 11, 06:55 UTCMay 11, 07:45 UTC50m
2026-05-11 AIQ3239 DMK → URT May 11, 04:55 UTCMay 11, 05:35 UTC40m
2026-05-10 AIQ3430 CNX → DMK May 10, 14:04 UTCMay 10, 14:59 UTC55m
2026-05-10 AIQ3429 DMK → CNX May 10, 12:19 UTCMay 10, 13:14 UTC55m
2026-05-10 AIQ3440 CNX → DMK May 10, 10:00 UTCMay 10, 10:55 UTC55m
2026-05-10 AIQ3439 DMK → CNX May 10, 08:05 UTCMay 10, 08:54 UTC50m
2026-05-10 AIQ3211 KBV → DMK May 10, 03:50 UTCMay 10, 06:50 UTC3h 0m

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

Mode-S 881421 frequently asked

What is Mode-S code 881421?
881421 is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-EAA.
Where is Mode-S 881421 registered?
Mode-S code 881421 is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 881421 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 881421, octal 42012041, decimal 8,918,049.
What flights does 881421 operate?
Mode-S 881421 has broadcast 20 distinct callsigns, including AIQ3211, AIQ3429, AIQ3440, AIQ3439, AIQ3430.