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
Broadcasting now · callsign AIQ3440 · 4,300 ft
Flights observed
403
Distinct callsigns
20
Country
TH
Last broadcast
Jul 26, 10:45 UTC

Current position

881421 is currently broadcasting. Map zoomed to live position.

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
AIQ3429 Thai AirAsia 42 2026-07-25
AIQ3430 Thai AirAsia 41 2026-07-25
AIQ3440 Thai AirAsia 40 2026-07-25
AIQ3439 Thai AirAsia 40 2026-07-25
AIQ3211 Thai AirAsia 38 2026-07-24
AIQ3214 - 18 2026-06-18
AIQ3092 - 15 2026-07-23
AIQ3029 Thai AirAsia 15 2026-07-23
AIQ3091 - 13 2026-07-19
AIQ3212 Thai AirAsia 11 2026-07-25
AIQ3438 - 7 2026-06-20
AIQ3428 - 7 2026-06-20
AIQ3427 - 7 2026-06-20
AIQ3103 - 7 2026-07-14
AIQ3437 - 6 2026-06-19
AIQ231 Thai AirAsia 6 2026-04-30
AIQ3208 - 5 2026-06-22
AIQ3207 - 5 2026-06-22
AIQ3102 Thai AirAsia 5 2026-05-27
AIQ3030 Thai AirAsia 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AIQ3109 HDY → DMK Jul 26, 07:30 UTCJul 26, 10:45 UTC3h 15m
2026-07-26 AIQ3117 HDY → DMK Jul 26, 01:15 UTCJul 26, 04:40 UTC3h 25m
2026-07-25 AIQ3430 CNX → DMK Jul 25, 14:15 UTCJul 25, 15:10 UTC55m
2026-07-25 AIQ3429 DMK → CNX Jul 25, 12:30 UTCJul 25, 13:25 UTC55m
2026-07-25 AIQ3440 CNX → DMK Jul 25, 10:30 UTCJul 25, 11:25 UTC55m
2026-07-25 AIQ3439 DMK → CNX Jul 25, 08:15 UTCJul 25, 09:10 UTC55m
2026-07-25 AIQ3212 DMK → KBV Jul 25, 03:55 UTCJul 25, 06:55 UTC3h 0m
2026-07-24 AIQ3430 CNX → DMK Jul 24, 13:55 UTCJul 24, 14:50 UTC55m
2026-07-24 AIQ3429 DMK → CNX Jul 24, 12:00 UTCJul 24, 12:55 UTC55m
2026-07-24 AIQ3440 - Jul 24, 10:10 UTCJul 24, 11:00 UTC50m
2026-07-24 AIQ3439 DMK → CNX Jul 24, 07:55 UTCJul 24, 08:45 UTC50m
2026-07-24 AIQ3211 KBV → DMK Jul 24, 03:45 UTCJul 24, 06:40 UTC2h 55m
2026-07-23 AIQ3092 - Jul 23, 06:30 UTCJul 23, 09:45 UTC3h 15m
2026-07-23 AIQ3029 DMK → HKT Jul 23, 01:50 UTCJul 23, 05:15 UTC3h 25m
2026-07-22 AIQ3430 CNX → DMK Jul 22, 13:50 UTCJul 22, 14:40 UTC50m
2026-07-22 AIQ3429 DMK → CNX Jul 22, 12:00 UTCJul 22, 12:55 UTC55m
2026-07-22 AIQ3212 DMK → KBV Jul 22, 03:40 UTCJul 22, 10:25 UTC6h 45m
2026-07-21 AIQ3092 - Jul 21, 06:15 UTCJul 21, 09:20 UTC3h 5m
2026-07-21 AIQ3030 HKT → DMK Jul 21, 01:45 UTCJul 21, 05:10 UTC3h 25m
2026-07-20 AIQ3092 - Jul 20, 06:20 UTCJul 20, 09:40 UTC3h 20m
2026-07-20 AIQ3029 DMK → HKT Jul 20, 01:45 UTCJul 20, 05:10 UTC3h 25m
2026-07-19 AIQ3091 - Jul 19, 06:10 UTCJul 19, 09:30 UTC3h 20m
2026-07-19 AIQ3029 DMK → HKT Jul 19, 01:50 UTCJul 19, 05:00 UTC3h 10m
2026-07-18 AIQ3091 - Jul 18, 06:20 UTCJul 18, 09:35 UTC3h 15m
2026-07-18 AIQ3029 - Jul 18, 01:39 UTCJul 18, 05:10 UTC3h 31m
2026-07-17 AIQ3092 - Jul 17, 06:20 UTCJul 17, 09:40 UTC3h 20m
2026-07-17 AIQ3030 - Jul 17, 04:04 UTCJul 17, 04:54 UTC50m
2026-07-17 AIQ3029 - Jul 17, 01:39 UTCJul 17, 02:25 UTC45m
2026-07-16 AIQ3092 - Jul 16, 06:10 UTCJul 16, 09:45 UTC3h 35m
2026-07-16 AIQ3029 - Jul 16, 01:45 UTCJul 16, 04:55 UTC3h 10m
2026-07-15 AIQ3430 CNX → DMK Jul 15, 13:50 UTCJul 15, 14:10 UTC20m
2026-07-15 AIQ3429 - Jul 15, 12:00 UTCJul 15, 12:50 UTC50m
2026-07-15 AIQ3440 - Jul 15, 09:55 UTCJul 15, 10:50 UTC55m
2026-07-15 AIQ3439 - Jul 15, 08:00 UTCJul 15, 08:55 UTC55m
2026-07-15 AIQ3211 - Jul 15, 03:45 UTCJul 15, 06:40 UTC2h 55m
2026-07-14 AIQ3103 - Jul 14, 23:30 UTCJul 15, 02:35 UTC3h 5m
2026-07-14 AIQ3091 - Jul 14, 06:10 UTCJul 14, 09:10 UTC3h 0m
2026-07-14 AIQ3029 - Jul 14, 01:50 UTCJul 14, 05:15 UTC3h 25m
2026-07-13 AIQ3091 - Jul 13, 06:15 UTCJul 13, 09:35 UTC3h 20m
2026-07-13 AIQ3029 - Jul 13, 01:40 UTCJul 13, 04:55 UTC3h 15m
2026-07-12 AIQ3430 CNX → DMK Jul 12, 13:25 UTCJul 12, 14:15 UTC50m
2026-07-12 AIQ3429 - Jul 12, 11:40 UTCJul 12, 12:30 UTC50m
2026-07-12 AIQ3440 - Jul 12, 09:45 UTCJul 12, 10:40 UTC55m
2026-07-12 AIQ3439 - Jul 12, 08:05 UTCJul 12, 08:55 UTC50m
2026-07-12 AIQ3212 - Jul 12, 04:01 UTCJul 12, 06:50 UTC2h 50m
2026-07-11 AIQ3091 - Jul 11, 06:15 UTCJul 11, 09:25 UTC3h 10m
2026-07-11 AIQ3029 - Jul 11, 01:35 UTCJul 11, 05:05 UTC3h 30m
2026-07-10 AIQ3092 - Jul 10, 06:20 UTCJul 10, 09:35 UTC3h 15m
2026-07-10 AIQ3029 - Jul 10, 01:40 UTCJul 10, 05:00 UTC3h 20m
2026-07-09 AIQ3091 - Jul 9, 06:15 UTCJul 9, 09:25 UTC3h 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 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?
Yes. Mode-S 881421 is currently airborne.
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 AIQ3429, AIQ3430, AIQ3440, AIQ3439, AIQ3211.