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sensors Mode-S transponder

A3BDBE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N340EM · CESSNA 340 Super · operated by BIOTECH AVIATION LLC

Hex
A3BDBE
Octal
50736676
Decimal
10,730,942
Country
US
Tail
N340EM
Type
C340
No current signal · last broadcast Jul 23, 16:35 UTC
Flights observed
106
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 16:35 UTC

Last known position

Most recent position reported by Mode-S A3BDBE.

Country allocation

The ICAO 24-bit address A3BDBE 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
N340EM - 106 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N340EM - Jul 23, 15:20 UTCJul 23, 16:35 UTC1h 15m
2026-07-23 N340EM - Jul 23, 11:55 UTCJul 23, 13:10 UTC1h 15m
2026-07-22 N340EM - Jul 22, 14:55 UTCJul 22, 16:30 UTC1h 35m
2026-07-22 N340EM - Jul 22, 12:05 UTCJul 22, 13:15 UTC1h 10m
2026-07-21 N340EM - Jul 21, 16:30 UTCJul 21, 17:50 UTC1h 20m
2026-07-21 N340EM - Jul 21, 13:25 UTCJul 21, 14:40 UTC1h 15m
2026-07-16 N340EM - Jul 16, 15:10 UTCJul 16, 16:35 UTC1h 25m
2026-07-16 N340EM - Jul 16, 11:54 UTCJul 16, 13:15 UTC1h 20m
2026-07-14 N340EM - Jul 14, 15:30 UTCJul 14, 16:40 UTC1h 10m
2026-07-14 N340EM - Jul 14, 12:00 UTCJul 14, 13:15 UTC1h 15m
2026-07-13 N340EM - Jul 13, 15:20 UTCJul 13, 16:35 UTC1h 15m
2026-07-13 N340EM - Jul 13, 12:00 UTCJul 13, 13:20 UTC1h 20m
2026-07-09 N340EM - Jul 9, 15:15 UTCJul 9, 16:20 UTC1h 5m
2026-07-09 N340EM - Jul 9, 11:55 UTCJul 9, 13:15 UTC1h 20m
2026-07-08 N340EM - Jul 8, 15:00 UTCJul 8, 16:05 UTC1h 5m
2026-07-08 N340EM - Jul 8, 11:50 UTCJul 8, 13:10 UTC1h 20m
2026-07-07 N340EM - Jul 7, 14:40 UTCJul 7, 16:05 UTC1h 25m
2026-07-07 N340EM - Jul 7, 11:55 UTCJul 7, 13:25 UTC1h 30m
2026-07-06 N340EM - Jul 6, 15:35 UTCJul 6, 16:55 UTC1h 20m
2026-07-06 N340EM - Jul 6, 11:55 UTCJul 6, 13:10 UTC1h 15m
2026-07-01 N340EM - Jul 1, 15:35 UTCJul 1, 16:55 UTC1h 20m
2026-07-01 N340EM - Jul 1, 12:00 UTCJul 1, 13:25 UTC1h 25m
2026-06-30 N340EM - Jun 30, 20:20 UTCJun 30, 21:00 UTC40m
2026-06-30 N340EM - Jun 30, 17:45 UTCJun 30, 18:00 UTC15m
2026-06-30 N340EM - Jun 30, 14:20 UTCJun 30, 14:50 UTC30m
2026-06-25 N340EM - Jun 25, 19:05 UTCJun 25, 19:15 UTC10m
2026-06-24 N340EM - Jun 24, 14:50 UTCJun 24, 16:14 UTC1h 25m
2026-06-24 N340EM - Jun 24, 11:50 UTCJun 24, 13:10 UTC1h 20m
2026-06-23 N340EM - Jun 23, 14:49 UTCJun 23, 16:14 UTC1h 25m
2026-06-23 N340EM - Jun 23, 11:54 UTCJun 23, 13:24 UTC1h 30m
2026-06-22 N340EM - Jun 22, 23:29 UTCJun 22, 23:39 UTC10m
2026-06-22 N340EM - Jun 22, 15:54 UTCJun 22, 16:54 UTC1h 0m
2026-06-22 N340EM - Jun 22, 12:00 UTCJun 22, 13:29 UTC1h 30m
2026-06-18 N340EM - Jun 18, 15:20 UTCJun 18, 16:30 UTC1h 10m
2026-06-18 N340EM - Jun 18, 11:55 UTCJun 18, 13:30 UTC1h 35m
2026-06-17 N340EM - Jun 17, 15:40 UTCJun 17, 16:45 UTC1h 5m
2026-06-17 N340EM - Jun 17, 12:00 UTCJun 17, 13:25 UTC1h 25m
2026-06-16 N340EM - Jun 16, 16:20 UTCJun 16, 17:19 UTC1h 0m
2026-06-16 N340EM - Jun 16, 12:05 UTCJun 16, 13:34 UTC1h 30m
2026-06-15 N340EM - Jun 15, 15:30 UTCJun 15, 16:49 UTC1h 20m
2026-06-15 N340EM - Jun 15, 12:05 UTCJun 15, 13:45 UTC1h 40m
2026-06-11 N340EM - Jun 11, 15:20 UTCJun 11, 16:30 UTC1h 10m
2026-06-11 N340EM - Jun 11, 11:55 UTCJun 11, 13:15 UTC1h 20m
2026-06-10 N340EM - Jun 10, 15:05 UTCJun 10, 16:25 UTC1h 20m
2026-06-10 N340EM - Jun 10, 11:55 UTCJun 10, 13:35 UTC1h 40m
2026-06-09 N340EM - Jun 9, 16:45 UTCJun 9, 16:55 UTC10m
2026-06-09 N340EM - Jun 9, 15:20 UTCJun 9, 15:50 UTC30m
2026-06-09 N340EM - Jun 9, 12:05 UTCJun 9, 13:30 UTC1h 25m
2026-06-02 N340EM - Jun 2, 22:05 UTCJun 2, 22:20 UTC15m
2026-06-02 N340EM - Jun 2, 15:25 UTCJun 2, 16:35 UTC1h 10m

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 N340EM page for operator, model, and routing details .

Mode-S A3BDBE frequently asked

What is Mode-S code A3BDBE?
A3BDBE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N340EM.
Where is Mode-S A3BDBE registered?
Mode-S code A3BDBE 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 A3BDBE broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 16:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3BDBE, octal 50736676, decimal 10,730,942.
What flights does A3BDBE operate?
Mode-S A3BDBE has broadcast 1 distinct callsign, including N340EM.