Apparatus

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sensors Mode-S transponder

A33D5C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N308DG · Motorglider · operated by UNITED STATES AIR FORCE

Hex
A33D5C
Octal
50636534
Decimal
10,698,076
Country
US
Tail
N308DG
Type
GLIM
No current signal · last broadcast Jul 24, 18:15 UTC
Flights observed
126
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 18:15 UTC

Last known position

Most recent position reported by Mode-S A33D5C.

Country allocation

The ICAO 24-bit address A33D5C 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
THNDR70 - 126 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 THNDR70 - Jul 24, 17:55 UTCJul 24, 18:15 UTC20m
2026-07-24 THNDR70 - Jul 24, 17:00 UTCJul 24, 17:15 UTC15m
2026-07-23 THNDR70 - Jul 23, 15:15 UTCJul 23, 15:30 UTC15m
2026-07-22 THNDR70 - Jul 22, 15:05 UTCJul 22, 15:15 UTC10m
2026-07-22 THNDR70 - Jul 22, 12:30 UTCJul 22, 13:10 UTC40m
2026-07-21 THNDR70 - Jul 21, 17:05 UTCJul 21, 17:15 UTC10m
2026-07-21 THNDR70 - Jul 21, 16:05 UTCJul 21, 16:15 UTC10m
2026-07-20 THNDR70 - Jul 20, 13:55 UTCJul 20, 14:05 UTC10m
2026-07-14 THNDR70 - Jul 14, 16:20 UTCJul 14, 16:30 UTC10m
2026-07-14 THNDR70 - Jul 14, 14:50 UTCJul 14, 15:25 UTC35m
2026-07-14 THNDR70 - Jul 14, 12:50 UTCJul 14, 13:05 UTC15m
2026-07-14 THNDR70 - Jul 14, 00:10 UTCJul 14, 00:20 UTC10m
2026-07-13 THNDR70 - Jul 13, 23:25 UTCJul 13, 23:35 UTC10m
2026-07-13 THNDR70 - Jul 13, 22:40 UTCJul 13, 22:55 UTC15m
2026-07-13 THNDR70 - Jul 13, 21:50 UTCJul 13, 22:00 UTC10m
2026-07-13 THNDR70 - Jul 13, 17:30 UTCJul 13, 17:40 UTC10m
2026-07-13 THNDR70 - Jul 13, 16:35 UTCJul 13, 16:45 UTC10m
2026-07-13 THNDR70 - Jul 13, 15:40 UTCJul 13, 15:50 UTC10m
2026-07-13 THNDR70 - Jul 13, 14:50 UTCJul 13, 15:00 UTC10m
2026-07-13 THNDR70 - Jul 13, 12:50 UTCJul 13, 13:00 UTC10m
2026-07-07 THNDR70 - Jul 7, 14:00 UTCJul 7, 14:10 UTC10m
2026-07-06 THNDR70 - Jul 6, 20:20 UTCJul 6, 20:30 UTC10m
2026-07-06 THNDR70 - Jul 6, 16:50 UTCJul 6, 17:00 UTC10m
2026-07-06 THNDR70 - Jul 6, 15:45 UTCJul 6, 15:55 UTC10m
2026-07-06 THNDR70 - Jul 6, 15:00 UTCJul 6, 15:15 UTC15m
2026-07-06 THNDR70 - Jul 6, 12:25 UTCJul 6, 13:00 UTC35m
2026-07-02 THNDR70 - Jul 2, 19:40 UTCJul 2, 19:50 UTC10m
2026-07-02 THNDR70 - Jul 2, 17:50 UTCJul 2, 18:00 UTC10m
2026-07-02 THNDR70 - Jul 2, 16:45 UTCJul 2, 16:55 UTC10m
2026-07-02 THNDR70 - Jul 2, 15:10 UTCJul 2, 15:20 UTC10m
2026-07-02 THNDR70 - Jul 2, 12:35 UTCJul 2, 12:50 UTC15m
2026-07-01 THNDR70 - Jul 1, 15:30 UTCJul 1, 15:40 UTC10m
2026-06-30 THNDR70 AFF → AFF Jun 30, 12:30 UTCJun 30, 12:45 UTC15m
2026-06-29 THNDR70 - Jun 29, 12:29 UTCJun 29, 12:39 UTC10m
2026-06-27 THNDR70 - Jun 27, 15:49 UTCJun 27, 16:04 UTC15m
2026-06-27 THNDR70 - Jun 27, 15:00 UTCJun 27, 15:10 UTC10m
2026-06-27 THNDR70 - Jun 27, 14:20 UTCJun 27, 14:29 UTC10m
2026-06-26 THNDR70 AFF → AFF Jun 26, 17:54 UTCJun 26, 18:15 UTC20m
2026-06-26 THNDR70 - Jun 26, 17:04 UTCJun 26, 17:15 UTC10m
2026-06-26 THNDR70 - Jun 26, 16:14 UTCJun 26, 16:24 UTC10m
2026-06-26 THNDR70 - Jun 26, 00:20 UTCJun 26, 00:30 UTC10m
2026-06-25 THNDR70 - Jun 25, 23:34 UTCJun 25, 23:44 UTC10m
2026-06-25 THNDR70 - Jun 25, 16:55 UTCJun 25, 17:09 UTC15m
2026-06-25 THNDR70 - Jun 25, 15:20 UTCJun 25, 15:29 UTC10m
2026-06-25 THNDR70 - Jun 25, 14:09 UTCJun 25, 14:20 UTC10m
2026-06-23 THNDR70 - Jun 23, 18:14 UTCJun 23, 18:25 UTC10m
2026-06-23 THNDR70 - Jun 23, 17:25 UTCJun 23, 17:39 UTC15m
2026-06-23 THNDR70 - Jun 23, 16:29 UTCJun 23, 16:39 UTC10m
2026-06-22 THNDR70 - Jun 22, 23:50 UTCJun 23, 00:35 UTC45m
2026-06-22 THNDR70 - Jun 22, 22:49 UTCJun 22, 22:59 UTC10m

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 N308DG page for operator, model, and routing details .

Mode-S A33D5C frequently asked

What is Mode-S code A33D5C?
A33D5C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N308DG.
Where is Mode-S A33D5C registered?
Mode-S code A33D5C 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 A33D5C broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 18:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A33D5C, octal 50636534, decimal 10,698,076.
What flights does A33D5C operate?
Mode-S A33D5C has broadcast 1 distinct callsign, including THNDR70.