Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD481E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N955KC · operated by CALLANDER JOHN K

Hex
AD481E
Octal
53244036
Decimal
11,356,190
Country
US
Tail
N955KC
Type
GYRO
No current signal · last broadcast Jul 17, 03:55 UTC
Flights observed
48
Distinct callsigns
1
Country
US
Last broadcast
Jul 17, 03:55 UTC

Last known position

Most recent position reported by Mode-S AD481E.

Country allocation

The ICAO 24-bit address AD481E 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
N955KC - 48 2026-07-17

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-07-17 N955KC PAO → PAO Jul 17, 02:45 UTCJul 17, 03:55 UTC1h 10m
2026-07-16 N955KC PAO → PAO Jul 16, 02:55 UTCJul 16, 03:35 UTC40m
2026-07-11 N955KC PAO → PAO Jul 11, 23:20 UTCJul 12, 00:30 UTC1h 10m
2026-07-10 N955KC PAO → PAO Jul 10, 03:10 UTCJul 10, 03:55 UTC45m
2026-07-08 N955KC PAO → PAO Jul 8, 02:45 UTCJul 8, 03:55 UTC1h 10m
2026-07-05 N955KC - Jul 5, 23:35 UTCJul 6, 00:50 UTC1h 15m
2026-07-04 N955KC - Jul 4, 20:55 UTCJul 4, 21:45 UTC50m
2026-07-04 N955KC PAO → LVK Jul 4, 19:00 UTCJul 4, 19:20 UTC20m
2026-07-03 N955KC - Jul 3, 20:55 UTCJul 3, 21:10 UTC15m
2026-07-03 N955KC PAO → LVK Jul 3, 18:55 UTCJul 3, 19:15 UTC20m
2026-07-03 N955KC PAO → PAO Jul 3, 03:05 UTCJul 3, 03:55 UTC50m
2026-07-02 N955KC PAO → PAO Jul 2, 03:00 UTCJul 2, 03:55 UTC55m
2026-06-28 N955KC PAO → PAO Jun 28, 02:39 UTCJun 28, 03:50 UTC1h 10m
2026-06-28 N955KC - Jun 28, 01:44 UTCJun 28, 01:59 UTC15m
2026-06-27 N955KC - Jun 27, 23:45 UTCJun 28, 00:04 UTC20m
2026-06-27 N955KC PAO → PAO Jun 27, 03:04 UTCJun 27, 03:49 UTC45m
2026-06-25 N955KC PAO → PAO Jun 25, 03:10 UTCJun 25, 03:59 UTC50m
2026-06-24 N955KC PAO → PAO Jun 24, 03:04 UTCJun 24, 03:50 UTC45m
2026-06-22 N955KC PAO → PAO Jun 22, 01:44 UTCJun 22, 02:40 UTC55m
2026-06-20 N955KC PAO → PAO Jun 20, 23:14 UTCJun 20, 23:59 UTC45m
2026-06-20 N955KC PAO → PAO Jun 20, 21:44 UTCJun 20, 22:30 UTC45m
2026-06-20 N955KC SQL → PAO Jun 20, 20:20 UTCJun 20, 20:49 UTC30m
2026-06-20 N955KC PAO → SQL Jun 20, 18:40 UTCJun 20, 18:49 UTC10m
2026-06-18 N955KC - Jun 18, 03:05 UTCJun 18, 03:45 UTC40m
2026-06-18 N955KC PAO → PAO Jun 18, 02:10 UTCJun 18, 02:55 UTC45m
2026-06-17 N955KC PAO → PAO Jun 17, 03:00 UTCJun 17, 03:40 UTC40m
2026-06-14 N955KC - Jun 14, 23:39 UTCJun 15, 00:40 UTC1h 0m
2026-06-08 N955KC - Jun 8, 01:20 UTCJun 8, 02:00 UTC40m
2026-05-26 N955KC - May 26, 00:29 UTCMay 26, 01:24 UTC55m
2026-05-25 N955KC - May 25, 22:19 UTCMay 25, 23:10 UTC50m
2026-05-25 N955KC - May 25, 21:09 UTCMay 25, 22:05 UTC55m
2026-05-24 N955KC - May 24, 16:40 UTCMay 24, 16:55 UTC15m
2026-05-23 N955KC - May 23, 18:55 UTCMay 23, 20:05 UTC1h 10m
2026-05-21 N955KC - May 21, 02:50 UTCMay 21, 03:30 UTC40m
2026-05-20 N955KC - May 20, 02:55 UTCMay 20, 03:35 UTC40m
2026-05-17 N955KC - May 17, 23:20 UTCMay 18, 00:10 UTC50m
2026-05-16 N955KC - May 16, 21:35 UTCMay 16, 23:20 UTC1h 45m
2026-05-14 N955KC - May 14, 03:20 UTCMay 14, 03:45 UTC25m
2026-05-13 N955KC - May 13, 03:10 UTCMay 13, 03:40 UTC30m
2026-05-10 N955KC - May 10, 22:40 UTCMay 10, 23:50 UTC1h 10m
2026-05-10 N955KC - May 10, 21:44 UTCMay 10, 22:05 UTC20m
2026-05-10 N955KC - May 10, 00:15 UTCMay 10, 02:14 UTC2h 0m
2026-05-03 N955KC - May 3, 21:29 UTCMay 3, 22:30 UTC1h 0m
2026-05-03 N955KC - May 3, 00:50 UTCMay 3, 02:10 UTC1h 20m
2026-05-01 N955KC - May 1, 02:50 UTCMay 1, 03:55 UTC1h 5m
2026-04-25 N955KC - Apr 25, 20:55 UTCApr 25, 21:20 UTC25m
2026-04-22 N955KC - Apr 22, 21:10 UTCApr 22, 22:00 UTC50m
2026-04-22 N955KC - Apr 22, 19:20 UTCApr 22, 20:30 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 N955KC page for operator, model, and routing details .

Mode-S AD481E frequently asked

What is Mode-S code AD481E?
AD481E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N955KC.
Where is Mode-S AD481E registered?
Mode-S code AD481E 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 AD481E broadcasting right now?
No active broadcast right now. Last signal was Jul 17, 03:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD481E, octal 53244036, decimal 11,356,190.
What flights does AD481E operate?
Mode-S AD481E has broadcast 1 distinct callsign, including N955KC.