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sensors Mode-S transponder

ADDDD2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N993AK · BEECH 99 Airliner · operated by LAKE CLARK AIR INC

Hex
ADDDD2
Octal
53356722
Decimal
11,394,514
Country
US
Tail
N993AK
Type
BE99
No current signal · last broadcast Jul 26, 02:50 UTC
Flights observed
234
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 02:50 UTC

Last known position

Most recent position reported by Mode-S ADDDD2.

Country allocation

The ICAO 24-bit address ADDDD2 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
N993AK - 234 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N993AK - Jul 26, 02:05 UTCJul 26, 02:45 UTC40m
2026-07-25 N993AK - Jul 25, 23:55 UTCJul 26, 00:35 UTC40m
2026-07-25 N993AK - Jul 25, 21:30 UTCJul 25, 22:15 UTC45m
2026-07-25 N993AK - Jul 25, 19:45 UTCJul 25, 20:20 UTC35m
2026-07-25 N993AK - Jul 25, 17:50 UTCJul 25, 18:25 UTC35m
2026-07-25 N993AK - Jul 25, 15:45 UTCJul 25, 16:20 UTC35m
2026-07-23 N993AK - Jul 23, 22:30 UTCJul 23, 23:05 UTC35m
2026-07-23 N993AK - Jul 23, 20:50 UTCJul 23, 21:55 UTC1h 5m
2026-07-23 N993AK - Jul 23, 19:05 UTCJul 23, 19:30 UTC25m
2026-07-23 N993AK - Jul 23, 17:50 UTCJul 23, 18:15 UTC25m
2026-07-23 N993AK - Jul 23, 15:45 UTCJul 23, 16:20 UTC35m
2026-07-22 N993AK - Jul 22, 23:50 UTCJul 23, 01:15 UTC1h 25m
2026-07-22 N993AK - Jul 22, 18:30 UTCJul 22, 19:20 UTC50m
2026-07-22 N993AK - Jul 22, 16:20 UTCJul 22, 18:00 UTC1h 40m
2026-07-21 N993AK - Jul 21, 23:10 UTCJul 22, 00:30 UTC1h 20m
2026-07-21 N993AK - Jul 21, 18:05 UTCJul 21, 19:10 UTC1h 5m
2026-07-21 N993AK - Jul 21, 15:15 UTCJul 21, 15:35 UTC20m
2026-07-21 N993AK - Jul 21, 03:00 UTCJul 21, 03:40 UTC40m
2026-07-21 N993AK - Jul 21, 00:50 UTCJul 21, 01:35 UTC45m
2026-07-20 N993AK - Jul 20, 22:25 UTCJul 20, 23:00 UTC35m
2026-07-20 N993AK - Jul 20, 19:00 UTCJul 20, 19:40 UTC40m
2026-07-20 N993AK - Jul 20, 17:35 UTCJul 20, 18:15 UTC40m
2026-07-20 N993AK - Jul 20, 15:15 UTCJul 20, 15:55 UTC40m
2026-07-20 N993AK - Jul 20, 01:45 UTCJul 20, 02:40 UTC55m
2026-07-20 N993AK - Jul 20, 00:05 UTCJul 20, 01:10 UTC1h 5m
2026-07-19 N993AK - Jul 19, 18:00 UTCJul 19, 18:40 UTC40m
2026-07-19 N993AK - Jul 19, 15:45 UTCJul 19, 16:35 UTC50m
2026-07-19 N993AK - Jul 19, 01:45 UTCJul 19, 02:30 UTC45m
2026-07-18 N993AK - Jul 18, 23:50 UTCJul 19, 00:45 UTC55m
2026-07-18 N993AK - Jul 18, 21:45 UTCJul 18, 22:40 UTC55m
2026-07-18 N993AK - Jul 18, 20:00 UTCJul 18, 20:50 UTC50m
2026-07-18 N993AK - Jul 18, 17:25 UTCJul 18, 18:15 UTC50m
2026-07-18 N993AK - Jul 18, 15:30 UTCJul 18, 16:10 UTC40m
2026-07-18 N993AK - Jul 18, 03:55 UTCJul 18, 04:20 UTC25m
2026-07-17 N993AK - Jul 17, 23:35 UTCJul 17, 23:55 UTC20m
2026-07-17 N993AK - Jul 17, 17:09 UTCJul 17, 17:55 UTC45m
2026-07-17 N993AK - Jul 17, 15:10 UTCJul 17, 15:49 UTC40m
2026-07-17 N993AK - Jul 17, 01:39 UTCJul 17, 02:25 UTC45m
2026-07-17 N993AK - Jul 17, 00:04 UTCJul 17, 00:50 UTC45m
2026-07-16 N993AK - Jul 16, 22:15 UTCJul 16, 22:59 UTC45m
2026-07-16 N993AK - Jul 16, 21:45 UTCJul 16, 22:05 UTC20m
2026-07-16 N993AK - Jul 16, 18:44 UTCJul 16, 19:10 UTC25m
2026-07-16 N993AK - Jul 16, 17:30 UTCJul 16, 17:54 UTC25m
2026-07-16 N993AK - Jul 16, 15:10 UTCJul 16, 15:40 UTC30m
2026-07-16 N993AK - Jul 16, 01:45 UTCJul 16, 02:25 UTC40m
2026-07-16 N993AK - Jul 16, 00:05 UTCJul 16, 00:30 UTC25m
2026-07-15 N993AK - Jul 15, 22:10 UTCJul 15, 22:45 UTC35m
2026-07-15 N993AK - Jul 15, 19:25 UTCJul 15, 19:55 UTC30m
2026-07-15 N993AK - Jul 15, 18:05 UTCJul 15, 18:40 UTC35m
2026-07-15 N993AK - Jul 15, 15:50 UTCJul 15, 16:50 UTC1h 0m

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 N993AK page for operator, model, and routing details .

Mode-S ADDDD2 frequently asked

What is Mode-S code ADDDD2?
ADDDD2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N993AK.
Where is Mode-S ADDDD2 registered?
Mode-S code ADDDD2 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 ADDDD2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 02:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADDDD2, octal 53356722, decimal 11,394,514.
What flights does ADDDD2 operate?
Mode-S ADDDD2 has broadcast 1 distinct callsign, including N993AK.