Apparatus

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sensors Mode-S transponder

A7B3F4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N596CS · CESSNA 172R Cutlass RG · operated by VAN ANDA AVIATION LLC

Hex
A7B3F4
Octal
51731764
Decimal
10,990,580
Country
US
Tail
N596CS
Type
C72R
Broadcasting now · callsign N596CS · 3,000 ft
Flights observed
147
Distinct callsigns
1
Country
US
Last broadcast
14h ago

Current position

A7B3F4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7B3F4 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
N596CS - 147 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N596CS - Jul 17, 20:44 UTCJul 17, 21:30 UTC45m
2026-07-16 N596CS - Jul 16, 15:30 UTCJul 16, 16:05 UTC35m
2026-07-13 N596CS - Jul 13, 21:45 UTCJul 13, 23:45 UTC2h 0m
2026-07-12 N596CS - Jul 12, 16:45 UTCJul 12, 17:35 UTC50m
2026-07-12 N596CS - Jul 12, 14:50 UTCJul 12, 16:01 UTC1h 10m
2026-07-12 N596CS - Jul 12, 12:45 UTCJul 12, 14:01 UTC1h 15m
2026-07-11 N596CS - Jul 11, 13:10 UTCJul 11, 13:35 UTC25m
2026-07-10 N596CS - Jul 10, 17:50 UTCJul 10, 18:50 UTC1h 0m
2026-07-09 N596CS - Jul 9, 21:50 UTCJul 9, 22:35 UTC45m
2026-07-09 N596CS - Jul 9, 18:50 UTCJul 9, 19:50 UTC1h 0m
2026-07-09 N596CS - Jul 9, 14:55 UTCJul 9, 15:15 UTC20m
2026-07-09 N596CS - Jul 9, 12:25 UTCJul 9, 13:15 UTC50m
2026-07-04 N596CS - Jul 4, 11:50 UTCJul 4, 13:40 UTC1h 50m
2026-07-03 N596CS - Jul 3, 16:45 UTCJul 3, 17:35 UTC50m
2026-07-03 N596CS - Jul 3, 14:30 UTCJul 3, 15:20 UTC50m
2026-07-03 N596CS - Jul 3, 11:50 UTCJul 3, 12:55 UTC1h 5m
2026-06-28 N596CS - Jun 28, 17:19 UTCJun 28, 18:00 UTC40m
2026-06-28 N596CS - Jun 28, 14:50 UTCJun 28, 15:34 UTC45m
2026-06-27 N596CS - Jun 27, 15:05 UTCJun 27, 15:39 UTC35m
2026-06-26 N596CS - Jun 26, 21:10 UTCJun 26, 22:19 UTC1h 10m
2026-06-26 N596CS - Jun 26, 17:59 UTCJun 26, 18:49 UTC50m
2026-06-26 N596CS - Jun 26, 16:24 UTCJun 26, 17:25 UTC1h 0m
2026-06-26 N596CS - Jun 26, 14:35 UTCJun 26, 15:25 UTC50m
2026-06-26 N596CS - Jun 26, 12:55 UTCJun 26, 13:55 UTC1h 0m
2026-06-25 N596CS - Jun 25, 20:05 UTCJun 25, 20:39 UTC35m
2026-06-25 N596CS - Jun 25, 11:44 UTCJun 25, 13:05 UTC1h 20m
2026-06-24 N596CS - Jun 24, 22:04 UTCJun 24, 23:10 UTC1h 5m
2026-06-24 N596CS - Jun 24, 14:09 UTCJun 24, 15:29 UTC1h 20m
2026-06-22 N596CS - Jun 22, 13:35 UTCJun 22, 15:10 UTC1h 35m
2026-06-21 N596CS - Jun 21, 11:30 UTCJun 21, 11:59 UTC30m
2026-06-20 N596CS - Jun 20, 12:59 UTCJun 20, 13:49 UTC50m
2026-06-19 N596CS - Jun 19, 21:44 UTCJun 19, 22:45 UTC1h 0m
2026-06-19 N596CS - Jun 19, 13:44 UTCJun 19, 14:59 UTC1h 15m
2026-06-19 N596CS - Jun 19, 00:24 UTCJun 19, 00:40 UTC15m
2026-06-18 N596CS - Jun 18, 18:50 UTCJun 18, 21:25 UTC2h 35m
2026-06-18 N596CS - Jun 18, 13:55 UTCJun 18, 17:00 UTC3h 5m
2026-06-18 N596CS - Jun 18, 10:50 UTCJun 18, 12:10 UTC1h 20m
2026-06-17 N596CS - Jun 17, 22:20 UTCJun 17, 23:10 UTC50m
2026-06-17 N596CS - Jun 17, 11:00 UTCJun 17, 12:35 UTC1h 35m
2026-06-16 N596CS - Jun 16, 14:35 UTCJun 16, 15:15 UTC40m
2026-06-16 N596CS - Jun 16, 10:45 UTCJun 16, 12:20 UTC1h 35m
2026-06-15 N596CS - Jun 15, 15:00 UTCJun 15, 15:45 UTC45m
2026-06-15 N596CS - Jun 15, 13:20 UTCJun 15, 14:00 UTC40m
2026-06-14 N596CS - Jun 14, 21:40 UTCJun 14, 22:40 UTC1h 0m
2026-06-14 N596CS - Jun 14, 14:00 UTCJun 14, 15:10 UTC1h 10m
2026-06-13 N596CS - Jun 13, 17:55 UTCJun 13, 18:55 UTC1h 0m
2026-06-13 N596CS - Jun 13, 13:15 UTCJun 13, 14:10 UTC55m
2026-06-13 N596CS - Jun 13, 12:05 UTCJun 13, 12:30 UTC25m
2026-06-12 N596CS - Jun 12, 17:55 UTCJun 12, 18:55 UTC1h 0m
2026-06-12 N596CS - Jun 12, 15:40 UTCJun 12, 16:05 UTC25m

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 N596CS page for operator, model, and routing details .

Mode-S A7B3F4 frequently asked

What is Mode-S code A7B3F4?
A7B3F4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N596CS.
Where is Mode-S A7B3F4 registered?
Mode-S code A7B3F4 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 A7B3F4 broadcasting right now?
Yes. Mode-S A7B3F4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7B3F4, octal 51731764, decimal 10,990,580.
What flights does A7B3F4 operate?
Mode-S A7B3F4 has broadcast 1 distinct callsign, including N596CS.