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sensors Mode-S transponder

ADDC1A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N992WW · CESSNA 172R Cutlass RG · operated by TSS FLYING CLUB INC

Hex
ADDC1A
Octal
53356032
Decimal
11,394,074
Country
US
Tail
N992WW
Type
C72R
No current signal · last broadcast Jul 26, 20:25 UTC
Flights observed
101
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 20:25 UTC

Last known position

Most recent position reported by Mode-S ADDC1A.

Country allocation

The ICAO 24-bit address ADDC1A 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
N992WW - 101 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N992WW - Jul 26, 19:50 UTCJul 26, 20:25 UTC35m
2026-07-26 N992WW - Jul 26, 18:00 UTCJul 26, 18:50 UTC50m
2026-07-25 N992WW - Jul 25, 23:40 UTCJul 26, 01:35 UTC1h 55m
2026-07-25 N992WW - Jul 25, 15:25 UTCJul 25, 17:15 UTC1h 50m
2026-07-25 N992WW GAI → GAI Jul 25, 11:05 UTCJul 25, 12:10 UTC1h 5m
2026-07-24 N992WW - Jul 24, 12:35 UTCJul 24, 14:00 UTC1h 25m
2026-07-23 N992WW - Jul 23, 16:40 UTCJul 23, 17:15 UTC35m
2026-07-23 N992WW - Jul 23, 14:40 UTCJul 23, 15:20 UTC40m
2026-07-22 N992WW - Jul 22, 15:05 UTCJul 22, 16:10 UTC1h 5m
2026-07-22 N992WW - Jul 22, 13:25 UTCJul 22, 14:10 UTC45m
2026-07-20 N992WW GAI → GAI Jul 20, 22:55 UTCJul 21, 00:10 UTC1h 14m
2026-07-19 N992WW GAI → GAI Jul 19, 17:20 UTCJul 19, 18:35 UTC1h 15m
2026-07-19 N992WW - Jul 19, 13:20 UTCJul 19, 14:35 UTC1h 15m
2026-07-17 N992WW - Jul 17, 19:20 UTCJul 17, 21:20 UTC2h 0m
2026-07-17 N992WW - Jul 17, 14:55 UTCJul 17, 16:59 UTC2h 5m
2026-07-16 N992WW - Jul 16, 15:55 UTCJul 16, 16:49 UTC55m
2026-07-13 N992WW - Jul 13, 14:30 UTCJul 13, 14:45 UTC15m
2026-07-10 N992WW - Jul 10, 17:20 UTCJul 10, 19:55 UTC2h 35m
2026-07-10 N992WW - Jul 10, 13:35 UTCJul 10, 15:50 UTC2h 15m
2026-07-08 N992WW - Jul 8, 17:55 UTCJul 8, 19:00 UTC1h 5m
2026-07-05 N992WW GAI → GAI Jul 5, 18:20 UTCJul 5, 19:10 UTC50m
2026-07-05 N992WW - Jul 5, 15:50 UTCJul 5, 16:30 UTC40m
2026-07-05 N992WW - Jul 5, 13:20 UTCJul 5, 14:00 UTC40m
2026-07-04 N992WW - Jul 4, 15:10 UTCJul 4, 15:50 UTC40m
2026-07-04 N992WW - Jul 4, 12:25 UTCJul 4, 13:55 UTC1h 30m
2026-07-03 N992WW - Jul 3, 18:45 UTCJul 3, 20:25 UTC1h 40m
2026-07-03 N992WW - Jul 3, 14:25 UTCJul 3, 15:45 UTC1h 20m
2026-07-02 N992WW - Jul 2, 14:25 UTCJul 2, 15:50 UTC1h 25m
2026-06-30 N992WW - Jun 30, 22:40 UTCJun 30, 23:40 UTC1h 0m
2026-06-29 N992WW - Jun 29, 17:10 UTCJun 29, 18:05 UTC55m
2026-06-29 N992WW - Jun 29, 13:49 UTCJun 29, 14:50 UTC1h 0m
2026-06-28 N992WW LNS → GAI Jun 28, 19:25 UTCJun 28, 20:39 UTC1h 15m
2026-06-28 N992WW - Jun 28, 17:44 UTCJun 28, 18:55 UTC1h 10m
2026-06-27 N992WW - Jun 27, 11:59 UTCJun 27, 13:35 UTC1h 35m
2026-06-25 N992WW - Jun 25, 20:49 UTCJun 25, 22:39 UTC1h 50m
2026-06-25 N992WW - Jun 25, 14:59 UTCJun 25, 16:29 UTC1h 30m
2026-06-23 N992WW - Jun 23, 19:44 UTCJun 23, 21:39 UTC1h 55m
2026-06-21 N992WW - Jun 21, 17:15 UTCJun 21, 19:00 UTC1h 45m
2026-06-21 N992WW - Jun 21, 13:29 UTCJun 21, 16:04 UTC2h 35m
2026-06-19 N992WW - Jun 19, 17:19 UTCJun 19, 17:44 UTC25m
2026-06-19 N992WW GAI → MRB Jun 19, 14:44 UTCJun 19, 15:24 UTC40m
2026-06-17 N992WW - Jun 17, 21:15 UTCJun 17, 22:35 UTC1h 20m
2026-06-17 N992WW - Jun 17, 17:55 UTCJun 17, 18:56 UTC1h 0m
2026-06-17 N992WW - Jun 17, 17:10 UTCJun 17, 17:25 UTC15m
2026-06-17 N992WW - Jun 17, 13:55 UTCJun 17, 14:55 UTC1h 0m
2026-06-15 N992WW - Jun 15, 20:00 UTCJun 15, 21:20 UTC1h 20m
2026-06-15 N992WW - Jun 15, 14:20 UTCJun 15, 15:30 UTC1h 10m
2026-06-14 N992WW - Jun 14, 17:40 UTCJun 14, 19:20 UTC1h 40m
2026-06-14 N992WW - Jun 14, 14:05 UTCJun 14, 15:40 UTC1h 35m
2026-06-13 N992WW - Jun 13, 18:20 UTCJun 13, 21:30 UTC3h 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 N992WW page for operator, model, and routing details .

Mode-S ADDC1A frequently asked

What is Mode-S code ADDC1A?
ADDC1A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N992WW.
Where is Mode-S ADDC1A registered?
Mode-S code ADDC1A 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 ADDC1A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADDC1A, octal 53356032, decimal 11,394,074.
What flights does ADDC1A operate?
Mode-S ADDC1A has broadcast 1 distinct callsign, including N992WW.