Apparatus

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sensors Mode-S transponder

ACBBC5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9199Z · CESSNA 172R Cutlass RG · operated by OKLAHOMA STATE UNIVERSITY

Hex
ACBBC5
Octal
53135705
Decimal
11,320,261
Country
US
Tail
N9199Z
Type
C72R
No current signal · last broadcast Jul 25, 16:15 UTC
Flights observed
118
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 16:15 UTC

Last known position

Most recent position reported by Mode-S ACBBC5.

Country allocation

The ICAO 24-bit address ACBBC5 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
N9199Z - 118 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N9199Z - Jul 25, 15:25 UTCJul 25, 16:15 UTC50m
2026-07-25 N9199Z - Jul 25, 13:00 UTCJul 25, 13:50 UTC50m
2026-07-24 N9199Z - Jul 24, 00:55 UTCJul 24, 01:40 UTC45m
2026-07-23 N9199Z - Jul 23, 20:55 UTCJul 23, 21:50 UTC55m
2026-07-23 N9199Z - Jul 23, 14:35 UTCJul 23, 15:35 UTC1h 0m
2026-07-23 N9199Z - Jul 23, 12:50 UTCJul 23, 13:20 UTC30m
2026-07-22 N9199Z - Jul 22, 20:20 UTCJul 22, 21:00 UTC40m
2026-07-22 N9199Z - Jul 22, 17:45 UTCJul 22, 18:20 UTC35m
2026-07-22 N9199Z - Jul 22, 15:15 UTCJul 22, 15:55 UTC40m
2026-07-21 N9199Z - Jul 21, 17:30 UTCJul 21, 18:20 UTC50m
2026-07-21 N9199Z - Jul 21, 14:30 UTCJul 21, 15:30 UTC1h 0m
2026-07-21 N9199Z - Jul 21, 12:45 UTCJul 21, 13:50 UTC1h 5m
2026-07-21 N9199Z - Jul 21, 00:15 UTCJul 21, 00:45 UTC30m
2026-07-20 N9199Z - Jul 20, 22:05 UTCJul 20, 22:25 UTC20m
2026-07-20 N9199Z - Jul 20, 17:40 UTCJul 20, 18:30 UTC50m
2026-07-20 N9199Z - Jul 20, 15:50 UTCJul 20, 16:25 UTC35m
2026-07-18 N9199Z - Jul 18, 18:45 UTCJul 18, 19:15 UTC30m
2026-07-18 N9199Z SWO → SWO Jul 18, 17:15 UTCJul 18, 17:45 UTC30m
2026-07-18 N9199Z - Jul 18, 14:50 UTCJul 18, 16:05 UTC1h 15m
2026-07-18 N9199Z - Jul 18, 12:25 UTCJul 18, 13:05 UTC40m
2026-07-17 N9199Z - Jul 17, 22:35 UTCJul 17, 23:35 UTC1h 0m
2026-07-17 N9199Z - Jul 17, 20:25 UTCJul 17, 20:44 UTC20m
2026-07-16 N9199Z - Jul 16, 23:29 UTCJul 17, 00:25 UTC55m
2026-07-07 N9199Z - Jul 7, 16:20 UTCJul 7, 17:05 UTC45m
2026-06-17 N9199Z - Jun 17, 13:00 UTCJun 17, 13:15 UTC15m
2026-06-17 N9199Z - Jun 17, 12:45 UTCJun 17, 12:55 UTC10m
2026-06-16 N9199Z - Jun 16, 17:10 UTCJun 16, 17:49 UTC40m
2026-06-15 N9199Z - Jun 15, 15:50 UTCJun 15, 16:45 UTC55m
2026-06-15 N9199Z - Jun 15, 14:05 UTCJun 15, 14:45 UTC40m
2026-06-13 N9199Z - Jun 13, 20:20 UTCJun 13, 21:05 UTC45m
2026-06-13 N9199Z - Jun 13, 16:05 UTCJun 13, 16:25 UTC20m
2026-06-13 N9199Z - Jun 13, 15:15 UTCJun 13, 15:35 UTC20m
2026-06-13 N9199Z - Jun 13, 13:35 UTCJun 13, 14:20 UTC45m
2026-06-12 N9199Z - Jun 12, 23:45 UTCJun 13, 01:00 UTC1h 15m
2026-06-10 N9199Z - Jun 10, 21:40 UTCJun 10, 22:55 UTC1h 15m
2026-06-10 N9199Z - Jun 10, 17:50 UTCJun 10, 18:50 UTC1h 0m
2026-06-10 N9199Z - Jun 10, 13:40 UTCJun 10, 13:55 UTC15m
2026-06-09 N9199Z - Jun 9, 22:10 UTCJun 9, 23:00 UTC50m
2026-06-09 N9199Z - Jun 9, 21:45 UTCJun 9, 22:05 UTC20m
2026-06-09 N9199Z - Jun 9, 15:20 UTCJun 9, 15:50 UTC30m
2026-06-09 N9199Z SWO → SWO Jun 9, 00:45 UTCJun 9, 01:35 UTC50m
2026-06-08 N9199Z - Jun 8, 22:45 UTCJun 8, 23:45 UTC1h 0m
2026-06-08 N9199Z - Jun 8, 19:20 UTCJun 8, 20:15 UTC55m
2026-06-08 N9199Z - Jun 8, 15:35 UTCJun 8, 17:10 UTC1h 35m
2026-06-04 N9199Z - Jun 4, 21:35 UTCJun 4, 22:00 UTC25m
2026-06-04 N9199Z - Jun 4, 19:25 UTCJun 4, 19:35 UTC10m
2026-06-03 N9199Z - Jun 3, 22:00 UTCJun 3, 23:05 UTC1h 5m
2026-06-02 N9199Z - Jun 2, 20:30 UTCJun 2, 21:25 UTC55m
2026-06-02 N9199Z - Jun 2, 01:50 UTCJun 2, 03:00 UTC1h 10m
2026-06-01 N9199Z - Jun 1, 22:20 UTCJun 1, 23:05 UTC45m

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 N9199Z page for operator, model, and routing details .

Mode-S ACBBC5 frequently asked

What is Mode-S code ACBBC5?
ACBBC5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9199Z.
Where is Mode-S ACBBC5 registered?
Mode-S code ACBBC5 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 ACBBC5 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACBBC5, octal 53135705, decimal 11,320,261.
What flights does ACBBC5 operate?
Mode-S ACBBC5 has broadcast 1 distinct callsign, including N9199Z.