Apparatus

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sensors Mode-S transponder

881050

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-DBP · BOEING 737-800

Hex
881050
Octal
42010120
Decimal
8,917,072
Country
TH
Tail
HS-DBP
Type
B738
No current signal · last broadcast Jul 26, 13:40 UTC
Flights observed
583
Distinct callsigns
20
Country
TH
Last broadcast
Jul 26, 13:40 UTC

Last known position

Most recent position reported by Mode-S 881050.

Country allocation

The ICAO 24-bit address 881050 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
NOK197 - 26 2026-07-24
NOK196 - 25 2026-07-24
NOK605 - 22 2026-07-24
NOK604 - 22 2026-07-24
NOK573 - 17 2026-07-20
NOK572 - 17 2026-07-20
NOK539 - 16 2026-07-17
NOK172 Nok Air 16 2026-07-24
NOK173 - 14 2026-07-24
NOK121 - 14 2026-06-28
NOK120 - 14 2026-06-27
NOK543 - 13 2026-06-25
NOK547 Nok Air 12 2026-07-20
NOK523 Nok Air 12 2026-07-26
NOK306 - 12 2026-07-18
NOK300 - 12 2026-07-19
NOK133 Nok Air 12 2026-07-25
NOK575 Nok Air 11 2026-07-26
NOK574 Nok Air 11 2026-07-26
NOK557 Nok Air 11 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NOK556 DMK → NST Jul 26, 10:55 UTCJul 26, 13:40 UTC2h 45m
2026-07-26 NOK575 URT → DMK Jul 26, 09:05 UTCJul 26, 09:55 UTC50m
2026-07-26 NOK574 DMK → URT Jul 26, 07:10 UTCJul 26, 07:50 UTC40m
2026-07-26 NOK523 HKT → DMK Jul 26, 02:50 UTCJul 26, 06:00 UTC3h 10m
2026-07-25 NOK551 NST → DMK Jul 25, 23:05 UTCJul 26, 01:45 UTC2h 40m
2026-07-25 NOK508 DMK → HDY Jul 25, 11:30 UTCJul 25, 14:45 UTC3h 15m
2026-07-25 NOK133 CNX → DMK Jul 25, 09:45 UTCJul 25, 10:35 UTC50m
2026-07-25 NOK132 DMK → CNX Jul 25, 07:45 UTCJul 25, 08:35 UTC50m
2026-07-25 NOK502 DMK → HDY Jul 25, 02:35 UTCJul 25, 05:45 UTC3h 10m
2026-07-24 NOK123 CNX → DMK Jul 24, 23:55 UTCJul 25, 00:45 UTC50m
2026-07-24 NOK148 DMK → CNX Jul 24, 14:40 UTCJul 24, 15:30 UTC50m
2026-07-24 NOK605 - Jul 24, 12:50 UTCJul 24, 13:30 UTC40m
2026-07-24 NOK604 - Jul 24, 11:20 UTCJul 24, 11:50 UTC30m
2026-07-24 NOK197 - Jul 24, 09:40 UTCJul 24, 10:15 UTC35m
2026-07-24 NOK196 - Jul 24, 08:00 UTCJul 24, 08:20 UTC20m
2026-07-24 NOK173 - Jul 24, 04:50 UTCJul 24, 05:30 UTC40m
2026-07-24 NOK172 DMK → URT Jul 24, 03:05 UTCJul 24, 03:40 UTC35m
2026-07-23 NOK605 - Jul 23, 12:45 UTCJul 23, 13:20 UTC35m
2026-07-23 NOK604 - Jul 23, 11:10 UTCJul 23, 11:45 UTC35m
2026-07-23 NOK197 - Jul 23, 09:40 UTCJul 23, 10:20 UTC40m
2026-07-23 NOK196 - Jul 23, 08:05 UTCJul 23, 08:35 UTC30m
2026-07-23 NOK173 - Jul 23, 04:50 UTCJul 23, 05:35 UTC45m
2026-07-23 NOK172 DMK → URT Jul 23, 03:05 UTCJul 23, 03:45 UTC40m
2026-07-22 NOK536 DMK → HKT Jul 22, 14:45 UTCJul 23, 01:50 UTC11h 5m
2026-07-22 NOK557 NST → DMK Jul 22, 11:25 UTCJul 22, 13:40 UTC2h 15m
2026-07-22 NOK502 - Jul 22, 02:35 UTCJul 22, 05:25 UTC2h 50m
2026-07-21 NOK546 - Jul 21, 10:00 UTCJul 21, 12:50 UTC2h 50m
2026-07-21 NOK593 - Jul 21, 06:10 UTCJul 21, 09:10 UTC3h 0m
2026-07-21 NOK322 - Jul 21, 03:00 UTCJul 21, 05:20 UTC2h 20m
2026-07-20 NOK551 - Jul 20, 23:10 UTCJul 21, 01:55 UTC2h 45m
2026-07-20 NOK547 KBV → DMK Jul 20, 10:20 UTCJul 20, 13:00 UTC2h 40m
2026-07-20 NOK592 DMK → TST Jul 20, 06:10 UTCJul 20, 09:05 UTC2h 55m
2026-07-20 NOK573 - Jul 20, 04:10 UTCJul 20, 04:55 UTC45m
2026-07-20 NOK572 - Jul 20, 02:30 UTCJul 20, 03:10 UTC40m
2026-07-20 NOK301 - Jul 20, 01:10 UTCJul 20, 01:20 UTC10m
2026-07-19 NOK300 - Jul 19, 23:05 UTCJul 19, 23:15 UTC10m
2026-07-19 NOK135 CNX → DMK Jul 19, 12:30 UTCJul 19, 13:25 UTC55m
2026-07-19 NOK134 - Jul 19, 10:50 UTCJul 19, 11:40 UTC50m
2026-07-19 NOK575 - Jul 19, 08:55 UTCJul 19, 09:45 UTC50m
2026-07-19 NOK574 - Jul 19, 06:40 UTCJul 19, 07:20 UTC40m
2026-07-19 NOK573 - Jul 19, 04:40 UTCJul 19, 05:20 UTC40m
2026-07-19 NOK572 - Jul 19, 02:55 UTCJul 19, 03:35 UTC40m
2026-07-18 NOK551 - Jul 18, 23:10 UTCJul 19, 01:50 UTC2h 40m
2026-07-18 NOK530 DMK → HKT Jul 18, 12:00 UTCJul 18, 14:55 UTC2h 55m
2026-07-18 NOK307 UTH → DMK Jul 18, 10:10 UTCJul 18, 10:20 UTC10m
2026-07-18 NOK306 - Jul 18, 08:00 UTCJul 18, 08:10 UTC10m
2026-07-18 NOK173 - Jul 18, 04:55 UTCJul 18, 05:40 UTC45m
2026-07-18 NOK172 - Jul 18, 03:15 UTCJul 18, 03:55 UTC40m
2026-07-17 NOK539 - Jul 17, 14:44 UTCJul 18, 01:50 UTC11h 5m
2026-07-17 NOK133 - Jul 17, 09:55 UTCJul 17, 10:55 UTC1h 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-DBP page for operator, model, and routing details .

Mode-S 881050 frequently asked

What is Mode-S code 881050?
881050 is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-DBP.
Where is Mode-S 881050 registered?
Mode-S code 881050 is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 881050 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 881050, octal 42010120, decimal 8,917,072.
What flights does 881050 operate?
Mode-S 881050 has broadcast 20 distinct callsigns, including NOK197, NOK196, NOK605, NOK604, NOK573.