Apparatus

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sensors Mode-S transponder

ADCE3E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N989TB · CUB CRAFTERS CC-11 Carbon Cub · operated by YB AVIATION LLC

Hex
ADCE3E
Octal
53347076
Decimal
11,390,526
Country
US
Tail
N989TB
Type
CC11
No current signal · last broadcast 16d ago
Flights observed
20
Distinct callsigns
1
Country
US
Last broadcast
16d ago

Last known position

Most recent position reported by Mode-S ADCE3E.

Country allocation

The ICAO 24-bit address ADCE3E 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
N989TB - 20 2026-06-27

Recent flights last 20

DateFlightRouteTakeoffLandingDuration
2026-06-27 N989TB - Jun 27, 21:40 UTCJun 27, 22:29 UTC50m
2026-06-27 N989TB - Jun 27, 19:19 UTCJun 27, 19:49 UTC30m
2026-06-25 N989TB - Jun 25, 21:29 UTCJun 25, 22:59 UTC1h 30m
2026-06-25 N989TB - Jun 25, 16:09 UTCJun 25, 16:29 UTC20m
2026-06-25 N989TB - Jun 25, 14:34 UTCJun 25, 14:59 UTC25m
2026-06-22 N989TB - Jun 22, 20:44 UTCJun 22, 21:14 UTC30m
2026-06-22 N989TB - Jun 22, 18:15 UTCJun 22, 18:40 UTC25m
2026-06-22 N989TB - Jun 22, 16:20 UTCJun 22, 16:50 UTC30m
2026-06-22 N989TB - Jun 22, 15:24 UTCJun 22, 15:40 UTC15m
2026-06-21 N989TB - Jun 21, 18:54 UTCJun 21, 20:14 UTC1h 20m
2026-06-20 N989TB HWD → HWD Jun 20, 19:29 UTCJun 20, 20:09 UTC40m
2026-06-20 N989TB HWD → HWD Jun 20, 17:49 UTCJun 20, 18:34 UTC45m
2026-06-19 N989TB - Jun 19, 21:19 UTCJun 19, 21:30 UTC10m
2026-06-19 N989TB - Jun 19, 19:29 UTCJun 19, 19:39 UTC10m
2026-06-19 N989TB HWD → HWD Jun 19, 19:04 UTCJun 19, 19:09 UTC5m
2026-06-19 N989TB HWD → HWD Jun 19, 18:34 UTCJun 19, 18:49 UTC15m
2026-05-28 N989TB HWD → HWD May 28, 01:50 UTCMay 28, 01:55 UTC5m
2026-05-01 N989TB - May 1, 22:20 UTCMay 1, 22:30 UTC10m
2026-05-01 N989TB HWD → LVK May 1, 20:45 UTCMay 1, 20:55 UTC10m
2026-04-30 N989TB HWD → HWD Apr 30, 20:15 UTCApr 30, 20:30 UTC15m

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 N989TB page for operator, model, and routing details .

Mode-S ADCE3E frequently asked

What is Mode-S code ADCE3E?
ADCE3E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N989TB.
Where is Mode-S ADCE3E registered?
Mode-S code ADCE3E 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 ADCE3E broadcasting right now?
No active broadcast right now. Last signal was 16d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADCE3E, octal 53347076, decimal 11,390,526.
What flights does ADCE3E operate?
Mode-S ADCE3E has broadcast 1 distinct callsign, including N989TB.