sensors Mode-S transponder

ACF49D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N934AZ · operated by N934AZ

Hex
ACF49D
Octal
53172235
Decimal
11,334,813
Country
US
Tail
N934AZ
No current signal · last broadcast 3h ago
Flights observed
154
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S ACF49D.

Country allocation

The ICAO 24-bit address ACF49D 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
OZN934 - 154 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 OZN934 - Jun 2, 21:30 UTCJun 2, 22:35 UTC1h 5m
2026-06-02 OZN934 - Jun 2, 19:50 UTCJun 2, 20:55 UTC1h 5m
2026-06-02 OZN934 - Jun 2, 17:25 UTCJun 2, 18:30 UTC1h 5m
2026-06-02 OZN934 - Jun 2, 15:50 UTCJun 2, 16:30 UTC40m
2026-06-02 OZN934 TMB → TMB Jun 2, 13:30 UTCJun 2, 14:40 UTC1h 10m
2026-06-02 OZN934 - Jun 2, 11:25 UTCJun 2, 12:35 UTC1h 10m
2026-06-01 OZN934 - Jun 1, 19:25 UTCJun 1, 20:45 UTC1h 20m
2026-06-01 OZN934 - Jun 1, 15:50 UTCJun 1, 16:55 UTC1h 5m
2026-06-01 OZN934 - Jun 1, 13:20 UTCJun 1, 14:35 UTC1h 15m
2026-06-01 OZN934 - Jun 1, 11:25 UTCJun 1, 11:55 UTC30m
2026-06-01 OZN934 TMB → TMB Jun 1, 00:50 UTCJun 1, 02:45 UTC1h 55m
2026-05-30 OZN934 - May 30, 21:45 UTCMay 30, 22:55 UTC1h 10m
2026-05-30 OZN934 TMB → TMB May 30, 17:25 UTCMay 30, 19:50 UTC2h 25m
2026-05-30 OZN934 TMB → TMB May 30, 13:35 UTCMay 30, 14:45 UTC1h 10m
2026-05-30 OZN934 TMB → TMB May 30, 11:40 UTCMay 30, 12:45 UTC1h 5m
2026-05-29 OZN934 - May 29, 21:55 UTCMay 29, 22:50 UTC55m
2026-05-29 OZN934 - May 29, 17:40 UTCMay 29, 19:00 UTC1h 20m
2026-05-29 OZN934 - May 29, 15:45 UTCMay 29, 16:30 UTC45m
2026-05-29 OZN934 TMB → TMB May 29, 11:45 UTCMay 29, 14:50 UTC3h 5m
2026-05-28 OZN934 TMB → TMB May 28, 21:55 UTCMay 28, 22:55 UTC1h 0m
2026-05-28 OZN934 TMB → TMB May 28, 19:45 UTCMay 28, 20:35 UTC50m
2026-05-27 OZN934 TMB → TMB May 27, 21:50 UTCMay 27, 22:50 UTC1h 0m
2026-05-27 OZN934 TMB → TMB May 27, 15:25 UTCMay 27, 16:05 UTC40m
2026-05-27 OZN934 TMB → TMB May 27, 11:30 UTCMay 27, 12:45 UTC1h 15m
2026-05-26 OZN934 - May 26, 19:45 UTCMay 26, 21:29 UTC1h 45m
2026-05-26 OZN934 - May 26, 17:25 UTCMay 26, 18:50 UTC1h 25m
2026-05-26 OZN934 TMB → TMB May 26, 13:50 UTCMay 26, 14:40 UTC50m
2026-05-26 OZN934 TMB → TMB May 26, 11:24 UTCMay 26, 12:45 UTC1h 20m
2026-05-22 OZN934 - May 22, 21:30 UTCMay 22, 22:20 UTC50m
2026-05-22 OZN934 - May 22, 17:50 UTCMay 22, 18:55 UTC1h 5m
2026-05-22 OZN934 TMB → TMB May 22, 14:05 UTCMay 22, 14:50 UTC45m
2026-05-22 OZN934 - May 22, 11:40 UTCMay 22, 12:30 UTC50m
2026-05-21 OZN934 - May 21, 21:30 UTCMay 21, 22:25 UTC55m
2026-05-21 OZN934 TMB → TMB May 21, 17:45 UTCMay 21, 18:45 UTC1h 0m
2026-05-21 OZN934 - May 21, 14:15 UTCMay 21, 16:30 UTC2h 15m
2026-05-21 OZN934 TMB → TMB May 21, 11:25 UTCMay 21, 12:40 UTC1h 15m
2026-05-20 OZN934 - May 20, 15:45 UTCMay 20, 16:55 UTC1h 10m
2026-05-19 OZN934 TMB → TMB May 19, 17:45 UTCMay 19, 18:30 UTC45m
2026-05-19 OZN934 TMB → TMB May 19, 16:20 UTCMay 19, 16:55 UTC35m
2026-05-17 OZN934 - May 17, 17:50 UTCMay 17, 18:40 UTC50m
2026-05-17 OZN934 TMB → TMB May 17, 11:30 UTCMay 17, 12:25 UTC55m
2026-05-16 OZN934 - May 16, 15:55 UTCMay 16, 16:35 UTC40m
2026-05-16 OZN934 - May 16, 13:51 UTCMay 16, 14:55 UTC1h 5m
2026-05-16 OZN934 TMB → TMB May 16, 11:31 UTCMay 16, 12:35 UTC1h 5m
2026-05-15 OZN934 TMB → TMB May 15, 21:45 UTCMay 15, 22:45 UTC1h 0m
2026-05-15 OZN934 - May 15, 17:35 UTCMay 15, 18:40 UTC1h 5m
2026-05-15 OZN934 TMB → TMB May 15, 13:35 UTCMay 15, 14:45 UTC1h 10m
2026-05-14 OZN934 - May 14, 21:25 UTCMay 14, 22:25 UTC1h 0m
2026-05-14 OZN934 TMB → TMB May 14, 18:30 UTCMay 14, 18:55 UTC25m
2026-05-14 OZN934 - May 14, 15:35 UTCMay 14, 16:25 UTC50m

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 N934AZ page for operator, model, and routing details .

Mode-S ACF49D frequently asked

What is Mode-S code ACF49D?
ACF49D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N934AZ.
Where is Mode-S ACF49D registered?
Mode-S code ACF49D 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 ACF49D broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF49D, octal 53172235, decimal 11,334,813.
What flights does ACF49D operate?
Mode-S ACF49D has broadcast 1 distinct callsign, including OZN934.