Apparatus

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sensors Mode-S transponder

A4F7FB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4190V · CESSNA 172R Cutlass RG · operated by ATP AIRCRAFT 2 LLC

Hex
A4F7FB
Octal
51173773
Decimal
10,811,387
Country
US
Tail
N4190V
Type
C72R
No current signal · last broadcast 9d ago
Flights observed
143
Distinct callsigns
1
Country
US
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S A4F7FB.

Country allocation

The ICAO 24-bit address A4F7FB 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
CXK214 - 143 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 CXK214 SAC → LVK Jul 9, 01:05 UTCJul 9, 02:25 UTC1h 20m
2026-07-09 CXK214 - Jul 9, 00:25 UTCJul 9, 01:00 UTC35m
2026-07-08 CXK214 - Jul 8, 00:50 UTCJul 8, 01:40 UTC50m
2026-07-07 CXK214 LVK → LVK Jul 7, 18:45 UTCJul 7, 19:30 UTC45m
2026-07-06 CXK214 LVK → LVK Jul 6, 18:25 UTCJul 6, 18:55 UTC30m
2026-07-03 CXK214 LVK → LVK Jul 3, 18:05 UTCJul 3, 18:15 UTC10m
2026-07-01 CXK214 - Jul 1, 15:00 UTCJul 1, 16:30 UTC1h 30m
2026-06-28 CXK214 - Jun 28, 15:44 UTCJun 28, 16:05 UTC20m
2026-06-26 CXK214 - Jun 26, 23:30 UTCJun 27, 02:04 UTC2h 35m
2026-06-26 CXK214 - Jun 26, 17:59 UTCJun 26, 19:14 UTC1h 15m
2026-06-26 CXK214 - Jun 26, 02:05 UTCJun 26, 02:54 UTC50m
2026-06-25 CXK214 - Jun 25, 23:05 UTCJun 26, 00:50 UTC1h 45m
2026-06-25 CXK214 - Jun 25, 16:50 UTCJun 25, 18:50 UTC2h 0m
2026-06-24 CXK214 - Jun 24, 22:14 UTCJun 24, 23:34 UTC1h 20m
2026-06-24 CXK214 - Jun 24, 02:05 UTCJun 24, 02:40 UTC35m
2026-06-23 CXK214 - Jun 23, 21:20 UTCJun 23, 23:44 UTC2h 25m
2026-06-23 CXK214 - Jun 23, 18:50 UTCJun 23, 20:15 UTC1h 25m
2026-06-23 CXK214 - Jun 23, 02:04 UTCJun 23, 03:25 UTC1h 20m
2026-06-22 CXK214 - Jun 22, 23:24 UTCJun 23, 00:54 UTC1h 30m
2026-06-22 CXK214 - Jun 22, 20:19 UTCJun 22, 21:25 UTC1h 5m
2026-06-22 CXK214 SMX → SMX Jun 22, 20:04 UTCJun 22, 20:10 UTC5m
2026-06-22 CXK214 - Jun 22, 18:40 UTCJun 22, 19:54 UTC1h 15m
2026-06-21 CXK214 - Jun 21, 17:50 UTCJun 21, 19:14 UTC1h 25m
2026-06-19 CXK214 - Jun 19, 23:25 UTCJun 20, 00:54 UTC1h 30m
2026-06-19 CXK214 - Jun 19, 20:59 UTCJun 19, 22:19 UTC1h 20m
2026-06-18 CXK214 - Jun 18, 21:55 UTCJun 18, 23:10 UTC1h 15m
2026-06-18 CXK214 - Jun 18, 20:10 UTCJun 18, 20:30 UTC20m
2026-06-17 CXK214 - Jun 17, 23:55 UTCJun 18, 01:00 UTC1h 5m
2026-06-17 CXK214 - Jun 17, 21:40 UTCJun 17, 22:55 UTC1h 15m
2026-06-16 CXK214 - Jun 16, 22:10 UTCJun 16, 23:30 UTC1h 20m
2026-06-16 CXK214 - Jun 16, 02:45 UTCJun 16, 03:35 UTC50m
2026-06-16 CXK214 - Jun 16, 00:45 UTCJun 16, 01:35 UTC50m
2026-06-15 CXK214 - Jun 15, 22:30 UTCJun 16, 00:00 UTC1h 30m
2026-06-14 CXK214 - Jun 14, 23:25 UTCJun 15, 00:24 UTC1h 0m
2026-06-14 CXK214 - Jun 14, 20:40 UTCJun 14, 22:00 UTC1h 20m
2026-06-14 CXK214 - Jun 14, 00:40 UTCJun 14, 01:30 UTC50m
2026-06-13 CXK214 - Jun 13, 18:55 UTCJun 13, 20:25 UTC1h 30m
2026-06-12 CXK214 - Jun 12, 23:25 UTCJun 13, 00:50 UTC1h 25m
2026-06-12 CXK214 - Jun 12, 00:30 UTCJun 12, 01:50 UTC1h 20m
2026-06-11 CXK214 - Jun 11, 21:50 UTCJun 11, 22:40 UTC50m
2026-06-11 CXK214 - Jun 11, 18:35 UTCJun 11, 19:55 UTC1h 20m
2026-06-11 CXK214 - Jun 11, 15:00 UTCJun 11, 17:40 UTC2h 40m
2026-06-11 CXK214 RAL → RAL Jun 11, 14:15 UTCJun 11, 14:50 UTC35m
2026-06-11 CXK214 RAL → RAL Jun 11, 14:00 UTCJun 11, 14:05 UTC5m
2026-06-10 CXK214 RAL → RAL Jun 10, 20:35 UTCJun 10, 21:45 UTC1h 10m
2026-06-10 CXK214 RAL → RAL Jun 10, 20:25 UTCJun 10, 20:30 UTC5m
2026-06-10 CXK214 RIR → RIR Jun 10, 17:30 UTCJun 10, 18:35 UTC1h 5m
2026-06-09 CXK214 - Jun 9, 19:35 UTCJun 9, 21:25 UTC1h 50m
2026-06-09 CXK214 - Jun 9, 16:45 UTCJun 9, 17:45 UTC1h 0m
2026-06-09 CXK214 - Jun 9, 15:30 UTCJun 9, 15:50 UTC20m

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 N4190V page for operator, model, and routing details .

Mode-S A4F7FB frequently asked

What is Mode-S code A4F7FB?
A4F7FB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4190V.
Where is Mode-S A4F7FB registered?
Mode-S code A4F7FB 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 A4F7FB broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4F7FB, octal 51173773, decimal 10,811,387.
What flights does A4F7FB operate?
Mode-S A4F7FB has broadcast 1 distinct callsign, including CXK214.