Apparatus

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sensors Mode-S transponder

A1D1C5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N216WE · BOEING 727-200 · operated by INTERNATIONAL TRADING COMPANY OF YUKON INC

Hex
A1D1C5
Octal
50350705
Decimal
10,604,997
Country
US
Tail
N216WE
Type
B722
No current signal · last broadcast 2d ago
Flights observed
88
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A1D1C5.

Country allocation

The ICAO 24-bit address A1D1C5 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 1 distinct

Callsign Airline Flights Last seen
TSU216 Gulf & Caribbean Cargo / Contract Air Cargo 88 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-11 TSU216 PTK → PBC Jun 11, 18:35 UTCJun 11, 19:40 UTC1h 5m
2026-06-11 TSU216 PTK → PBC Jun 11, 15:35 UTCJun 11, 17:45 UTC2h 10m
2026-06-11 TSU216 PTK → PBC Jun 11, 11:55 UTCJun 11, 14:45 UTC2h 50m
2026-06-11 TSU216 PTK → PBC Jun 11, 04:40 UTCJun 11, 05:40 UTC1h 0m
2026-06-10 TSU216 PTK → PBC Jun 10, 23:35 UTCJun 11, 02:35 UTC3h 0m
2026-06-10 TSU216 PTK → PBC Jun 10, 21:05 UTCJun 10, 22:40 UTC1h 35m
2026-06-10 TSU216 PTK → PBC Jun 10, 14:00 UTCJun 10, 17:45 UTC3h 45m
2026-06-09 TSU216 PTK → PBC Jun 9, 11:35 UTCJun 9, 14:25 UTC2h 50m
2026-06-09 TSU216 PTK → PBC Jun 9, 07:55 UTCJun 9, 09:45 UTC1h 50m
2026-06-09 TSU216 PTK → PBC Jun 9, 01:30 UTCJun 9, 05:20 UTC3h 50m
2026-06-08 TSU216 PTK → PBC Jun 8, 20:10 UTCJun 8, 21:45 UTC1h 35m
2026-06-08 TSU216 PTK → PBC Jun 8, 17:30 UTCJun 8, 19:30 UTC2h 0m
2026-06-08 TSU216 PTK → PBC Jun 8, 02:25 UTCJun 8, 04:50 UTC2h 25m
2026-06-07 TSU216 PTK → PBC Jun 7, 22:55 UTCJun 8, 01:10 UTC2h 15m
2026-06-05 TSU216 PTK → PBC Jun 5, 17:55 UTCJun 5, 19:30 UTC1h 35m
2026-06-05 TSU216 PTK → PBC Jun 5, 12:40 UTCJun 5, 16:15 UTC3h 35m
2026-06-05 TSU216 PTK → PBC Jun 5, 09:55 UTCJun 5, 10:05 UTC10m
2026-06-05 TSU216 PTK → PBC Jun 5, 03:40 UTCJun 5, 05:40 UTC2h 0m
2026-06-04 TSU216 PTK → PBC Jun 4, 23:40 UTCJun 5, 02:00 UTC2h 20m
2026-06-04 TSU216 PTK → PBC Jun 4, 15:10 UTCJun 4, 19:05 UTC3h 55m
2026-06-04 TSU216 PTK → PBC Jun 4, 06:35 UTCJun 4, 07:55 UTC1h 20m
2026-06-04 TSU216 PTK → PBC Jun 4, 03:10 UTCJun 4, 04:45 UTC1h 35m
2026-06-03 TSU216 PTK → PBC Jun 3, 22:25 UTCJun 4, 01:10 UTC2h 45m
2026-06-03 TSU216 PTK → PBC Jun 3, 15:15 UTCJun 3, 18:15 UTC3h 0m
2026-06-03 TSU216 PTK → PBC Jun 3, 11:00 UTCJun 3, 13:50 UTC2h 50m
2026-06-03 TSU216 PTK → PBC Jun 3, 06:00 UTCJun 3, 08:45 UTC2h 45m
2026-06-03 TSU216 PTK → PBC Jun 3, 00:10 UTCJun 3, 02:45 UTC2h 35m
2026-06-02 TSU216 PTK → PBC Jun 2, 20:30 UTCJun 2, 20:55 UTC25m
2026-06-02 TSU216 PTK → PBC Jun 2, 17:15 UTCJun 2, 19:35 UTC2h 20m
2026-06-02 TSU216 PTK → PBC Jun 2, 13:20 UTCJun 2, 14:35 UTC1h 15m
2026-06-01 TSU216 PTK → PBC Jun 1, 12:40 UTCJun 1, 17:50 UTC5h 10m
2026-05-30 TSU216 PTK → PBC May 30, 06:25 UTCMay 30, 08:10 UTC1h 45m
2026-05-30 TSU216 PTK → PBC May 30, 03:45 UTCMay 30, 05:05 UTC1h 20m
2026-05-28 TSU216 PTK → PBC May 28, 05:15 UTCMay 28, 05:55 UTC40m
2026-05-28 TSU216 PTK → PBC May 28, 01:00 UTCMay 28, 04:10 UTC3h 10m
2026-05-27 TSU216 PTK → PBC May 27, 00:49 UTCMay 27, 03:09 UTC2h 20m
2026-05-26 TSU216 PTK → PBC May 26, 22:15 UTCMay 27, 00:14 UTC2h 0m
2026-05-23 TSU216 PTK → PBC May 23, 15:35 UTCMay 23, 21:00 UTC5h 26m
2026-05-23 TSU216 PTK → PBC May 23, 11:50 UTCMay 23, 14:10 UTC2h 20m
2026-05-23 TSU216 PTK → PBC May 23, 06:10 UTCMay 23, 08:55 UTC2h 45m
2026-05-21 TSU216 PTK → PBC May 21, 13:10 UTCMay 21, 15:25 UTC2h 15m
2026-05-21 TSU216 PTK → PBC May 21, 09:50 UTCMay 21, 12:00 UTC2h 10m
2026-05-21 TSU216 PTK → PBC May 21, 04:50 UTCMay 21, 08:00 UTC3h 10m
2026-05-20 TSU216 PTK → PBC May 20, 00:40 UTCMay 20, 01:30 UTC50m
2026-05-19 TSU216 PTK → PBC May 19, 21:15 UTCMay 19, 23:25 UTC2h 10m
2026-05-19 TSU216 PTK → PBC May 19, 15:00 UTCMay 19, 15:55 UTC55m
2026-05-19 TSU216 PTK → PBC May 19, 02:15 UTCMay 19, 03:15 UTC1h 0m
2026-05-18 TSU216 PTK → PBC May 18, 23:05 UTCMay 18, 23:50 UTC45m
2026-05-18 TSU216 PTK → PBC May 18, 17:55 UTCMay 18, 18:20 UTC25m
2026-05-18 TSU216 PTK → PBC May 18, 02:50 UTCMay 18, 05:20 UTC2h 30m

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 N216WE page for operator, model, and routing details .

Mode-S A1D1C5 frequently asked

What is Mode-S code A1D1C5?
A1D1C5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N216WE.
Where is Mode-S A1D1C5 registered?
Mode-S code A1D1C5 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 A1D1C5 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1D1C5, octal 50350705, decimal 10,604,997.
What flights does A1D1C5 operate?
Mode-S A1D1C5 has broadcast 1 distinct callsign, including TSU216.