Apparatus

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sensors Mode-S transponder

A08BCB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N134TW · operated by TW LEASING LLC

Hex
A08BCB
Octal
50105713
Decimal
10,521,547
Country
US
Tail
N134TW
No current signal · last broadcast 6d ago
Flights observed
428
Distinct callsigns
20
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S A08BCB.

Country allocation

The ICAO 24-bit address A08BCB falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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
GPD153 Tradewind Aviation 18 2026-07-22
GPD115 Tradewind Aviation 18 2026-07-19
GPD155 - 17 2026-07-03
GPD173 - 16 2026-07-10
GPD172 - 15 2026-07-10
GPD111 - 15 2026-07-20
GPD171 - 14 2026-07-03
GPD116 Tradewind Aviation 14 2026-07-19
GPD152 - 13 2026-07-22
GPD114 Tradewind Aviation 13 2026-07-19
GPD112 - 13 2026-07-20
GPD174 - 12 2026-07-03
GPD151 - 12 2026-07-21
GPD113 - 12 2026-07-20
GPD150 Tradewind Aviation 11 2026-07-17
GPD123 - 10 2026-07-13
GPD154 - 9 2026-07-01
GPD122 - 9 2026-07-22
GPD100 - 9 2026-06-22
GPD103 Tradewind Aviation 8 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GPD905 VIJ → SJU Jul 26, 19:25 UTCJul 26, 19:35 UTC10m
2026-07-26 GPD904 SJU → VIJ Jul 26, 18:15 UTCJul 26, 18:25 UTC10m
2026-07-26 GPD903 VIJ → SJU Jul 26, 17:10 UTCJul 26, 17:20 UTC10m
2026-07-26 GPD902 SJU → VIJ Jul 26, 15:55 UTCJul 26, 16:15 UTC20m
2026-07-26 GPD901 VIJ → SJU Jul 26, 14:55 UTCJul 26, 15:10 UTC15m
2026-07-26 GPD689 SJU → VIJ Jul 26, 13:20 UTCJul 26, 13:30 UTC10m
2026-07-26 GPD565 STT → SJU Jul 26, 12:15 UTCJul 26, 12:30 UTC15m
2026-07-26 GPD247 SJU → SBH Jul 26, 10:15 UTCJul 26, 10:40 UTC25m
2026-07-25 GPD898 SBH → SJU Jul 25, 19:25 UTCJul 25, 19:35 UTC10m
2026-07-25 GPD904 SJU → VIJ Jul 25, 18:20 UTCJul 25, 18:40 UTC20m
2026-07-25 GPD903 VIJ → SJU Jul 25, 17:05 UTCJul 25, 17:20 UTC15m
2026-07-25 GPD902 SJU → VIJ Jul 25, 15:55 UTCJul 25, 16:10 UTC15m
2026-07-25 GPD901 VIJ → SJU Jul 25, 14:40 UTCJul 25, 14:50 UTC10m
2026-07-25 GPD356 - Jul 25, 13:15 UTCJul 25, 13:30 UTC15m
2026-07-24 GPD355 ANU → AXA Jul 24, 21:40 UTCJul 24, 21:55 UTC15m
2026-07-24 GPD906 SJU → VIJ Jul 24, 20:35 UTCJul 24, 20:50 UTC15m
2026-07-24 GPD905 VIJ → SJU Jul 24, 19:40 UTCJul 24, 19:50 UTC10m
2026-07-24 GPD904 SJU → VIJ Jul 24, 18:25 UTCJul 24, 18:45 UTC20m
2026-07-24 GPD903 VIJ → SJU Jul 24, 17:20 UTCJul 24, 17:40 UTC20m
2026-07-24 GPD902 SJU → VIJ Jul 24, 16:00 UTCJul 24, 16:15 UTC15m
2026-07-24 GPD901 VIJ → SJU Jul 24, 14:55 UTCJul 24, 15:10 UTC15m
2026-07-24 GPD3 - Jul 24, 13:20 UTCJul 24, 13:35 UTC15m
2026-07-23 GPD2 - Jul 23, 22:00 UTCJul 23, 22:10 UTC10m
2026-07-23 GPD906 SJU → VIJ Jul 23, 20:50 UTCJul 23, 21:05 UTC15m
2026-07-23 GPD905 VIJ → SJU Jul 23, 19:45 UTCJul 23, 19:55 UTC10m
2026-07-23 GPD904 SJU → VIJ Jul 23, 18:30 UTCJul 23, 18:40 UTC10m
2026-07-23 GPD903 - Jul 23, 17:10 UTCJul 23, 17:20 UTC10m
2026-07-23 GPD327 - Jul 23, 15:20 UTCJul 23, 15:35 UTC15m
2026-07-23 GPD720 - Jul 23, 13:55 UTCJul 23, 14:05 UTC10m
2026-07-22 GPD126 SJU → SBH Jul 22, 21:00 UTCJul 22, 21:25 UTC25m
2026-07-22 GPD153 SBH → SJU Jul 22, 19:05 UTCJul 22, 19:20 UTC15m
2026-07-22 GPD152 - Jul 22, 17:05 UTCJul 22, 17:30 UTC25m
2026-07-22 GPD103 SBH → SJU Jul 22, 15:55 UTCJul 22, 16:10 UTC15m
2026-07-22 GPD122 - Jul 22, 14:00 UTCJul 22, 14:25 UTC25m
2026-07-22 GPD193 - Jul 22, 12:55 UTCJul 22, 13:10 UTC15m
2026-07-21 GPD906 SJU → VIJ Jul 21, 22:15 UTCJul 21, 22:25 UTC10m
2026-07-21 GPD871 - Jul 21, 21:10 UTCJul 21, 21:35 UTC25m
2026-07-21 GPD065 SJU → SBH Jul 21, 19:30 UTCJul 21, 19:55 UTC25m
2026-07-21 GPD153 SBH → SJU Jul 21, 17:40 UTCJul 21, 17:55 UTC15m
2026-07-21 GPD152B - Jul 21, 15:35 UTCJul 21, 16:05 UTC30m
2026-07-21 GPD151 - Jul 21, 14:10 UTCJul 21, 14:20 UTC10m
2026-07-21 GPD150B - Jul 21, 12:15 UTCJul 21, 12:40 UTC25m
2026-07-20 GPD901 VIJ → SJU Jul 20, 18:10 UTCJul 20, 18:25 UTC15m
2026-07-20 GPD902 SJU → VIJ Jul 20, 16:50 UTCJul 20, 17:00 UTC10m
2026-07-20 GPD113 - Jul 20, 15:40 UTCJul 20, 15:55 UTC15m
2026-07-20 GPD112 - Jul 20, 13:40 UTCJul 20, 14:05 UTC25m
2026-07-20 GPD111 - Jul 20, 12:35 UTCJul 20, 12:50 UTC15m
2026-07-19 GPD116 SJU → SBH Jul 19, 21:15 UTCJul 19, 21:40 UTC25m
2026-07-19 GPD115 SBH → SJU Jul 19, 20:15 UTCJul 19, 20:35 UTC20m
2026-07-19 GPD114 SJU → SBH Jul 19, 17:50 UTCJul 19, 18:20 UTC30m

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 N134TW page for operator, model, and routing details .

Mode-S A08BCB frequently asked

What is Mode-S code A08BCB?
A08BCB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N134TW.
Where is Mode-S A08BCB registered?
Mode-S code A08BCB is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A08BCB broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A08BCB, octal 50105713, decimal 10,521,547.
What flights does A08BCB operate?
Mode-S A08BCB has broadcast 20 distinct callsigns, including GPD153, GPD115, GPD155, GPD173, GPD172.