Apparatus

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sensors Mode-S transponder

88434B

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-PZK · ATR-72-600

Hex
88434B
Octal
42041513
Decimal
8,930,123
Country
TH
Tail
HS-PZK
Type
AT76
No current signal · last broadcast 7h ago
Flights observed
134
Distinct callsigns
20
Country
TH
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 88434B.

Country allocation

The ICAO 24-bit address 88434B 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
BKP176 Bangkok Airways 8 2026-05-31
BKP450 Bangkok Airways 7 2026-05-31
BKP305 Bangkok Airways 6 2026-05-28
BKP451 Bangkok Airways 5 2026-05-29
BKP282 Bangkok Airways 5 2026-05-31
BKP185 Bangkok Airways 5 2026-05-30
BKP936 - 4 2026-06-01
BKP935 - 4 2026-06-01
BKP906 Bangkok Airways 4 2026-06-02
BKP905 Bangkok Airways 4 2026-06-02
BKP308 Bangkok Airways 4 2026-06-02
BKP307 Bangkok Airways 4 2026-06-02
BKP306 Bangkok Airways 4 2026-05-28
BKP294 Bangkok Airways 4 2026-05-31
BKP281 Bangkok Airways 4 2026-05-27
BKP212 - 4 2026-06-02
BKP211 - 4 2026-06-02
BKP150 Bangkok Airways 4 2026-06-01
BKP127 Bangkok Airways 4 2026-06-01
BKP455 Bangkok Airways 3 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 BKP308 TDX → BKK Jun 2, 10:45 UTCJun 2, 11:20 UTC35m
2026-06-02 BKP307 BKK → TDX Jun 2, 09:15 UTCJun 2, 09:45 UTC30m
2026-06-02 BKP906 SAI → BKK Jun 2, 06:10 UTCJun 2, 07:05 UTC55m
2026-06-02 BKP905 BKK → SAI Jun 2, 03:55 UTCJun 2, 04:30 UTC35m
2026-06-02 BKP212 - Jun 2, 02:05 UTCJun 2, 02:45 UTC40m
2026-06-02 BKP211 - Jun 2, 00:00 UTCJun 2, 00:45 UTC45m
2026-06-01 BKP936 - Jun 1, 14:05 UTCJun 1, 14:50 UTC45m
2026-06-01 BKP935 - Jun 1, 10:55 UTCJun 1, 11:35 UTC40m
2026-06-01 BKP150 USM → BKK Jun 1, 09:20 UTCJun 1, 09:45 UTC25m
2026-06-01 BKP127 BKK → USM Jun 1, 03:10 UTCJun 1, 03:40 UTC30m
2026-05-31 BKP176 USM → BKK May 31, 13:05 UTCMay 31, 13:40 UTC35m
2026-05-31 BKP294 UTP → USM May 31, 10:35 UTCMay 31, 10:50 UTC15m
2026-05-31 BKP282 HKT → UTP May 31, 09:05 UTCMay 31, 09:50 UTC45m
2026-05-31 BKP450 USM → DMK May 31, 00:30 UTCMay 31, 01:11 UTC41m
2026-05-30 BKP185 BKK → USM May 30, 12:30 UTCMay 30, 13:10 UTC40m
2026-05-30 BKP308 TDX → BKK May 30, 10:50 UTCMay 30, 11:30 UTC40m
2026-05-30 BKP307 BKK → TDX May 30, 09:10 UTCMay 30, 09:40 UTC30m
2026-05-30 BKP906 SAI → BKK May 30, 06:35 UTCMay 30, 07:20 UTC45m
2026-05-30 BKP905 BKK → SAI May 30, 03:50 UTCMay 30, 04:25 UTC35m
2026-05-30 BKP212 - May 30, 02:20 UTCMay 30, 02:50 UTC30m
2026-05-29 BKP211 - May 29, 23:50 UTCMay 30, 00:35 UTC45m
2026-05-29 BKP176 USM → BKK May 29, 12:50 UTCMay 29, 13:10 UTC20m
2026-05-29 BKP282 HKT → UTP May 29, 09:00 UTCMay 29, 09:10 UTC10m
2026-05-29 BKP451 DMK → USM May 29, 02:05 UTCMay 29, 02:35 UTC30m
2026-05-29 BKP450 USM → DMK May 29, 00:35 UTCMay 29, 01:10 UTC35m
2026-05-28 BKP193 BKK → USM May 28, 13:10 UTCMay 28, 13:20 UTC10m
2026-05-28 BKP214 - May 28, 11:15 UTCMay 28, 11:55 UTC40m
2026-05-28 BKP213 - May 28, 09:05 UTCMay 28, 09:55 UTC50m
2026-05-28 BKP306 TDX → BKK May 28, 06:40 UTCMay 28, 07:10 UTC30m
2026-05-28 BKP305 BKK → TDX May 28, 04:50 UTCMay 28, 05:10 UTC20m
2026-05-28 BKP924 SAI → BKK May 28, 02:55 UTCMay 28, 03:35 UTC40m
2026-05-28 BKP903 BKK → SAI May 28, 00:30 UTCMay 28, 01:10 UTC40m
2026-05-27 BKP176 USM → BKK May 27, 12:50 UTCMay 27, 13:25 UTC35m
2026-05-27 BKP294 UTP → USM May 27, 10:35 UTCMay 27, 10:55 UTC20m
2026-05-27 BKP282 HKT → UTP May 27, 09:10 UTCMay 27, 09:50 UTC40m
2026-05-27 BKP281 UTP → HKT May 27, 06:09 UTCMay 27, 06:44 UTC35m
2026-05-27 BKP293 USM → UTP May 27, 04:39 UTCMay 27, 05:04 UTC25m
2026-05-27 BKP450 USM → DMK May 27, 00:19 UTCMay 27, 00:44 UTC25m
2026-05-26 BKP185 BKK → USM May 26, 12:40 UTCMay 26, 13:15 UTC35m
2026-05-26 BKP3604 DMK → BKK May 26, 08:50 UTCMay 26, 09:04 UTC15m
2026-05-05 BKP3603 - May 5, 00:45 UTCMay 5, 01:05 UTC20m
2026-05-04 BKP192 USM → BKK May 4, 14:20 UTCMay 4, 15:20 UTC1h 0m
2026-05-03 BKP185 BKK → USM May 3, 12:30 UTCMay 3, 13:05 UTC35m
2026-05-03 BKP188 USM → BKK May 3, 10:55 UTCMay 3, 11:35 UTC40m
2026-05-03 BKP157 BKK → USM May 3, 08:10 UTCMay 3, 08:45 UTC35m
2026-05-03 BKP306 TDX → BKK May 3, 06:20 UTCMay 3, 06:55 UTC35m
2026-05-03 BKP305 BKK → TDX May 3, 04:45 UTCMay 3, 05:20 UTC35m
2026-05-03 BKP212 - May 3, 02:20 UTCMay 3, 02:50 UTC30m
2026-05-03 BKP211 - May 3, 00:01 UTCMay 3, 00:30 UTC30m
2026-05-02 BKP176 USM → BKK May 2, 12:40 UTCMay 2, 13:30 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-PZK page for operator, model, and routing details .

Mode-S 88434B frequently asked

What is Mode-S code 88434B?
88434B is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-PZK.
Where is Mode-S 88434B registered?
Mode-S code 88434B is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88434B broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88434B, octal 42041513, decimal 8,930,123.
What flights does 88434B operate?
Mode-S 88434B has broadcast 20 distinct callsigns, including BKP176, BKP450, BKP305, BKP451, BKP282.