Apparatus

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sensors Mode-S transponder

ADDCC1

ICAO 24-bit transponder address · allocated to United States

Hex
ADDCC1
Octal
53356301
Decimal
11,394,241
Country
US
No current signal · last broadcast 13d ago
Flights observed
42
Distinct callsigns
1
Country
US
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S ADDCC1.

Country allocation

The ICAO 24-bit address ADDCC1 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
N9922T - 42 2026-07-04

Recent flights last 42

DateFlightRouteTakeoffLandingDuration
2026-07-04 N9922T - Jul 4, 23:35 UTCJul 4, 23:55 UTC20m
2026-07-04 N9922T - Jul 4, 21:45 UTCJul 4, 23:00 UTC1h 15m
2026-07-03 N9922T - Jul 3, 02:35 UTCJul 3, 02:45 UTC10m
2026-07-03 N9922T - Jul 3, 01:30 UTCJul 3, 01:45 UTC15m
2026-07-03 N9922T - Jul 3, 00:40 UTCJul 3, 00:55 UTC15m
2026-07-03 N9922T SQL → SQL Jul 3, 00:25 UTCJul 3, 00:35 UTC10m
2026-07-02 N9922T - Jul 2, 23:40 UTCJul 2, 23:45 UTC5m
2026-07-02 N9922T RHV → PAO Jul 2, 23:25 UTCJul 2, 23:35 UTC10m
2026-06-28 N9922T - Jun 28, 22:49 UTCJun 28, 23:09 UTC20m
2026-06-28 N9922T - Jun 28, 18:25 UTCJun 28, 18:40 UTC15m
2026-06-28 N9922T - Jun 28, 01:10 UTCJun 28, 01:29 UTC20m
2026-06-28 N9922T - Jun 28, 00:09 UTCJun 28, 00:25 UTC15m
2026-06-26 N9922T - Jun 26, 22:25 UTCJun 26, 23:34 UTC1h 10m
2026-06-26 N9922T - Jun 26, 19:20 UTCJun 26, 20:55 UTC1h 35m
2026-06-25 N9922T SCK → RHV Jun 25, 20:49 UTCJun 25, 21:20 UTC30m
2026-06-25 N9922T RHV → SCK Jun 25, 18:04 UTCJun 25, 19:54 UTC1h 50m
2026-06-25 N9922T - Jun 25, 01:59 UTCJun 25, 02:05 UTC5m
2026-06-25 N9922T RHV → RHV Jun 25, 01:44 UTCJun 25, 01:54 UTC10m
2026-06-23 N9922T - Jun 23, 01:54 UTCJun 23, 02:15 UTC20m
2026-06-22 N9922T - Jun 22, 23:14 UTCJun 22, 23:29 UTC15m
2026-06-22 N9922T - Jun 22, 04:44 UTCJun 22, 05:10 UTC25m
2026-06-22 N9922T - Jun 22, 02:59 UTCJun 22, 03:30 UTC30m
2026-06-21 N9922T - Jun 21, 00:29 UTCJun 21, 01:10 UTC40m
2026-06-20 N9922T - Jun 20, 22:10 UTCJun 20, 22:59 UTC50m
2026-06-20 N9922T - Jun 20, 19:49 UTCJun 20, 20:34 UTC45m
2026-06-20 N9922T - Jun 20, 17:29 UTCJun 20, 18:19 UTC50m
2026-06-20 N9922T - Jun 20, 00:44 UTCJun 20, 00:59 UTC15m
2026-06-19 N9922T - Jun 19, 23:09 UTCJun 19, 23:25 UTC15m
2026-06-19 N9922T RHV → RHV Jun 19, 03:44 UTCJun 19, 03:49 UTC5m
2026-06-16 N9922T - Jun 16, 00:15 UTCJun 16, 01:45 UTC1h 30m
2026-06-15 N9922T - Jun 15, 23:15 UTCJun 15, 23:25 UTC10m
2026-06-14 N9922T - Jun 14, 22:10 UTCJun 14, 22:40 UTC30m
2026-06-14 N9922T - Jun 14, 16:55 UTCJun 14, 17:25 UTC30m
2026-06-13 N9922T - Jun 13, 20:10 UTCJun 13, 21:50 UTC1h 40m
2026-06-13 N9922T - Jun 13, 19:10 UTCJun 13, 19:35 UTC25m
2026-06-13 N9922T - Jun 13, 15:30 UTCJun 13, 17:15 UTC1h 45m
2026-06-12 N9922T - Jun 12, 14:45 UTCJun 12, 15:00 UTC15m
2026-06-11 N9922T - Jun 11, 22:20 UTCJun 11, 22:35 UTC15m
2026-06-11 N9922T - Jun 11, 17:15 UTCJun 11, 17:40 UTC25m
2026-06-10 N9922T - Jun 10, 20:35 UTCJun 10, 20:55 UTC20m
2026-05-24 N9922T - May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 N9922T - May 24, 19:10 UTCMay 24, 20:55 UTC1h 45m

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.

Mode-S ADDCC1 frequently asked

What is Mode-S code ADDCC1?
ADDCC1 is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S ADDCC1 registered?
Mode-S code ADDCC1 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 ADDCC1 broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADDCC1, octal 53356301, decimal 11,394,241.
What flights does ADDCC1 operate?
Mode-S ADDCC1 has broadcast 1 distinct callsign, including N9922T.