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sensors Mode-S transponder

ADF3E9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N99885 · CESSNA 172 Skyhawk · operated by AZ2025 LLC

Hex
ADF3E9
Octal
53371751
Decimal
11,400,169
Country
US
Tail
N99885
Type
C172
No current signal · last broadcast 13h ago
Flights observed
287
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S ADF3E9.

Country allocation

The ICAO 24-bit address ADF3E9 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
OZN969 - 287 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 OZN969 TMB → TMB Jul 13, 19:30 UTCJul 13, 20:25 UTC55m
2026-07-13 OZN969 - Jul 13, 17:15 UTCJul 13, 18:20 UTC1h 5m
2026-07-13 OZN969 TMB → TMB Jul 13, 13:20 UTCJul 13, 14:30 UTC1h 10m
2026-07-13 OZN969 - Jul 13, 11:25 UTCJul 13, 12:30 UTC1h 5m
2026-07-12 OZN969 TMB → TMB Jul 12, 21:10 UTCJul 12, 22:20 UTC1h 10m
2026-07-12 OZN969 TMB → TMB Jul 12, 17:35 UTCJul 12, 18:55 UTC1h 20m
2026-07-12 OZN969 TMB → TMB Jul 12, 15:30 UTCJul 12, 16:40 UTC1h 10m
2026-07-12 OZN969 TMB → TMB Jul 12, 11:20 UTCJul 12, 13:50 UTC2h 30m
2026-07-11 OZN969 TMB → TMB Jul 11, 19:35 UTCJul 11, 20:20 UTC45m
2026-07-11 OZN969 TMB → TMB Jul 11, 15:30 UTCJul 11, 16:35 UTC1h 5m
2026-07-11 OZN969 - Jul 11, 13:55 UTCJul 11, 14:50 UTC55m
2026-07-11 OZN969 - Jul 11, 11:50 UTCJul 11, 12:55 UTC1h 5m
2026-07-11 OZN969 TMB → TMB Jul 11, 00:50 UTCJul 11, 02:40 UTC1h 50m
2026-07-10 OZN969 - Jul 10, 15:55 UTCJul 10, 16:50 UTC55m
2026-07-10 OZN969 TMB → TMB Jul 10, 14:05 UTCJul 10, 14:55 UTC50m
2026-07-10 OZN969 TMB → TMB Jul 10, 11:25 UTCJul 10, 12:30 UTC1h 5m
2026-07-09 OZN969 TMB → TMB Jul 9, 14:45 UTCJul 9, 15:50 UTC1h 5m
2026-07-08 OZN969 - Jul 8, 17:45 UTCJul 8, 18:40 UTC55m
2026-07-08 OZN969 - Jul 8, 13:50 UTCJul 8, 15:35 UTC1h 45m
2026-07-07 OZN969 TMB → TMB Jul 7, 19:45 UTCJul 7, 20:40 UTC55m
2026-07-07 OZN969 TMB → TMB Jul 7, 15:30 UTCJul 7, 16:40 UTC1h 10m
2026-07-07 OZN969 TMB → TMB Jul 7, 14:30 UTCJul 7, 14:45 UTC15m
2026-07-07 OZN969 TMB → TMB Jul 7, 13:45 UTCJul 7, 14:25 UTC40m
2026-07-07 OZN969 - Jul 7, 11:30 UTCJul 7, 12:25 UTC55m
2026-07-06 OZN969 TMB → TMB Jul 6, 15:55 UTCJul 6, 16:35 UTC40m
2026-07-06 OZN969 TMB → TMB Jul 6, 13:35 UTCJul 6, 14:45 UTC1h 10m
2026-07-06 OZN969 TMB → TMB Jul 6, 11:30 UTCJul 6, 12:35 UTC1h 5m
2026-07-05 OZN969 - Jul 5, 22:20 UTCJul 5, 22:55 UTC35m
2026-07-05 OZN969 - Jul 5, 21:30 UTCJul 5, 21:40 UTC10m
2026-07-05 OZN969 - Jul 5, 16:20 UTCJul 5, 16:40 UTC20m
2026-07-05 OZN969 TMB → TMB Jul 5, 15:40 UTCJul 5, 16:15 UTC35m
2026-07-05 OZN969 - Jul 5, 14:15 UTCJul 5, 14:45 UTC30m
2026-07-05 OZN969 - Jul 5, 13:30 UTCJul 5, 13:45 UTC15m
2026-07-05 OZN969 - Jul 5, 11:35 UTCJul 5, 12:35 UTC1h 0m
2026-07-04 OZN969 TMB → TMB Jul 4, 17:35 UTCJul 4, 18:20 UTC45m
2026-07-04 OZN969 TMB → TMB Jul 4, 13:40 UTCJul 4, 14:45 UTC1h 5m
2026-07-04 OZN969 - Jul 4, 11:20 UTCJul 4, 12:30 UTC1h 10m
2026-07-03 OZN969 TMB → TMB Jul 3, 13:15 UTCJul 3, 14:50 UTC1h 35m
2026-07-03 OZN969 TMB → TMB Jul 3, 11:35 UTCJul 3, 12:40 UTC1h 5m
2026-07-02 OZN969 TMB → TMB Jul 2, 17:50 UTCJul 2, 18:35 UTC45m
2026-07-02 OZN969 TMB → TMB Jul 2, 16:15 UTCJul 2, 16:40 UTC25m
2026-07-02 OZN969 TMB → TMB Jul 2, 13:50 UTCJul 2, 14:45 UTC55m
2026-07-01 OZN969 TMB → TMB Jul 1, 17:25 UTCJul 1, 18:35 UTC1h 10m
2026-07-01 OZN969 - Jul 1, 15:25 UTCJul 1, 16:30 UTC1h 5m
2026-07-01 OZN969 TMB → TMB Jul 1, 11:35 UTCJul 1, 12:50 UTC1h 15m
2026-06-30 OZN969 - Jun 30, 18:30 UTCJun 30, 18:35 UTC5m
2026-06-30 OZN969 TMB → TMB Jun 30, 17:40 UTCJun 30, 17:50 UTC10m
2026-06-30 OZN969 - Jun 30, 15:55 UTCJun 30, 16:35 UTC40m
2026-06-30 OZN969 TMB → TMB Jun 30, 13:30 UTCJun 30, 14:35 UTC1h 5m
2026-06-30 OZN969 - Jun 30, 11:35 UTCJun 30, 12:35 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 N99885 page for operator, model, and routing details .

Mode-S ADF3E9 frequently asked

What is Mode-S code ADF3E9?
ADF3E9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N99885.
Where is Mode-S ADF3E9 registered?
Mode-S code ADF3E9 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 ADF3E9 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADF3E9, octal 53371751, decimal 11,400,169.
What flights does ADF3E9 operate?
Mode-S ADF3E9 has broadcast 1 distinct callsign, including OZN969.