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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 AIQ3091 · 29,925 ft
Flights observed
366
Distinct callsigns
20
Country
TH
Last broadcast
1h ago

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 - 38 2026-07-12
AIQ3440 - 37 2026-07-12
AIQ3439 - 37 2026-07-12
AIQ3430 Thai AirAsia 37 2026-07-12
AIQ3211 - 36 2026-06-21
AIQ3214 - 18 2026-06-18
AIQ3092 - 10 2026-07-10
AIQ3091 - 10 2026-07-13
AIQ3212 - 9 2026-07-12
AIQ3029 - 9 2026-07-14
AIQ3438 - 7 2026-06-20
AIQ3428 - 7 2026-06-20
AIQ3427 - 7 2026-06-20
AIQ3437 - 6 2026-06-19
AIQ3103 Thai AirAsia 6 2026-05-28
AIQ231 Thai AirAsia 6 2026-04-30
AIQ3208 - 5 2026-06-22
AIQ3207 - 5 2026-06-22
AIQ3102 Thai AirAsia 5 2026-05-27
AIQ655 Thai AirAsia 4 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-09 AIQ3029 - Jul 9, 01:40 UTCJul 9, 04:55 UTC3h 15m
2026-07-08 AIQ3430 CNX → DMK Jul 8, 13:35 UTCJul 8, 14:30 UTC55m
2026-07-08 AIQ3429 - Jul 8, 11:40 UTCJul 8, 12:35 UTC55m
2026-07-08 AIQ3440 - Jul 8, 09:50 UTCJul 8, 10:45 UTC55m
2026-07-08 AIQ3439 - Jul 8, 08:00 UTCJul 8, 09:00 UTC1h 0m
2026-07-08 AIQ3212 - Jul 8, 03:40 UTCJul 8, 06:35 UTC2h 55m
2026-07-07 AIQ3092 - Jul 7, 06:20 UTCJul 7, 09:35 UTC3h 15m
2026-07-07 AIQ3029 - Jul 7, 01:40 UTCJul 7, 05:00 UTC3h 20m
2026-07-06 AIQ3092 - Jul 6, 06:10 UTCJul 6, 09:10 UTC3h 0m
2026-07-06 AIQ3030 - Jul 6, 01:35 UTCJul 6, 04:45 UTC3h 10m
2026-07-05 AIQ3092 - Jul 5, 06:15 UTCJul 5, 09:25 UTC3h 10m
2026-07-05 AIQ3029 - Jul 5, 01:35 UTCJul 5, 04:50 UTC3h 15m
2026-07-04 AIQ3091 - Jul 4, 06:20 UTCJul 4, 09:15 UTC2h 55m
2026-07-04 AIQ3029 - Jul 4, 01:45 UTCJul 4, 05:00 UTC3h 15m
2026-07-03 AIQ3091 - Jul 3, 06:15 UTCJul 3, 10:00 UTC3h 45m
2026-07-03 AIQ3030 - Jul 3, 01:45 UTCJul 3, 04:55 UTC3h 10m
2026-07-02 AIQ3092 - Jul 2, 06:15 UTCJul 2, 09:30 UTC3h 15m
2026-07-02 AIQ3030 - Jul 2, 01:35 UTCJul 2, 04:50 UTC3h 15m
2026-07-01 AIQ3356 - Jul 1, 10:55 UTCJul 1, 11:10 UTC15m
2026-07-01 AIQ3091 - Jul 1, 06:10 UTCJul 1, 09:15 UTC3h 5m
2026-07-01 AIQ3029 - Jul 1, 01:45 UTCJul 1, 05:15 UTC3h 30m
2026-06-24 AIQ3216 - Jun 24, 08:20 UTCJun 24, 11:09 UTC2h 50m
2026-06-24 AIQ3240 - Jun 24, 06:45 UTCJun 24, 07:24 UTC40m
2026-06-24 AIQ3239 - Jun 24, 04:39 UTCJun 24, 05:15 UTC35m
2026-06-22 AIQ3208 - Jun 22, 11:04 UTCJun 22, 11:54 UTC50m
2026-06-22 AIQ3207 - Jun 22, 09:10 UTCJun 22, 10:00 UTC50m
2026-06-22 AIQ3359 - Jun 22, 07:40 UTCJun 22, 08:00 UTC20m
2026-06-22 AIQ3358 - Jun 22, 05:40 UTCJun 22, 06:00 UTC20m
2026-06-22 AIQ3038 - Jun 22, 00:50 UTCJun 22, 04:04 UTC3h 15m
2026-06-21 AIQ3430 CNX → DMK Jun 21, 13:50 UTCJun 21, 14:44 UTC55m
2026-06-21 AIQ3429 DMK → CNX Jun 21, 11:49 UTCJun 21, 12:49 UTC1h 0m
2026-06-21 AIQ3440 - Jun 21, 09:49 UTCJun 21, 10:40 UTC50m
2026-06-21 AIQ3439 - Jun 21, 07:59 UTCJun 21, 08:49 UTC50m
2026-06-21 AIQ3211 - Jun 21, 03:44 UTCJun 21, 06:44 UTC3h 0m
2026-06-20 AIQ3428 - Jun 20, 05:09 UTCJun 20, 05:59 UTC50m
2026-06-20 AIQ3427 - Jun 20, 03:24 UTCJun 20, 04:14 UTC50m
2026-06-20 AIQ3438 - Jun 20, 01:39 UTCJun 20, 02:29 UTC50m

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, AIQ3440, AIQ3439, AIQ3430, AIQ3211.