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sensors Mode-S transponder

A5CBD9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4727D · CESSNA 172 Skyhawk · operated by M B AIRWAYS INC

Hex
A5CBD9
Octal
51345731
Decimal
10,865,625
Country
US
Tail
N4727D
Type
C172
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
284
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S A5CBD9.

Country allocation

The ICAO 24-bit address A5CBD9 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
N4727D - 284 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N4727D RBK → RBK Jul 26, 20:00 UTCJul 26, 21:00 UTC1h 0m
2026-07-26 N4727D - Jul 26, 02:05 UTCJul 26, 02:55 UTC50m
2026-07-25 N4727D - Jul 25, 19:55 UTCJul 25, 20:55 UTC1h 0m
2026-07-25 N4727D RBK → RBK Jul 25, 02:10 UTCJul 25, 03:00 UTC50m
2026-07-24 N4727D RBK → RBK Jul 24, 23:55 UTCJul 25, 00:45 UTC50m
2026-07-24 N4727D RBK → RBK Jul 24, 18:35 UTCJul 24, 19:45 UTC1h 10m
2026-07-24 N4727D RBK → RBK Jul 24, 15:40 UTCJul 24, 16:15 UTC35m
2026-07-24 N4727D RBK → RBK Jul 24, 00:05 UTCJul 24, 00:50 UTC45m
2026-07-23 N4727D RBK → RBK Jul 23, 16:35 UTCJul 23, 18:10 UTC1h 35m
2026-07-23 N4727D RBK → RBK Jul 23, 02:55 UTCJul 23, 03:40 UTC45m
2026-07-22 N4727D RBK → RBK Jul 22, 22:35 UTCJul 23, 00:20 UTC1h 45m
2026-07-22 N4727D - Jul 22, 19:20 UTCJul 22, 20:10 UTC50m
2026-07-22 N4727D RBK → RBK Jul 22, 17:40 UTCJul 22, 18:15 UTC35m
2026-07-22 N4727D RBK → RBK Jul 22, 01:40 UTCJul 22, 02:15 UTC35m
2026-07-21 N4727D - Jul 21, 19:45 UTCJul 21, 20:25 UTC40m
2026-07-21 N4727D - Jul 21, 17:25 UTCJul 21, 18:35 UTC1h 10m
2026-07-21 N4727D RBK → RBK Jul 21, 14:15 UTCJul 21, 15:20 UTC1h 5m
2026-07-21 N4727D RBK → RBK Jul 21, 03:00 UTCJul 21, 04:40 UTC1h 40m
2026-07-20 N4727D - Jul 20, 22:30 UTCJul 20, 23:30 UTC1h 0m
2026-07-20 N4727D RBK → RBK Jul 20, 20:00 UTCJul 20, 21:15 UTC1h 15m
2026-07-20 N4727D - Jul 20, 18:40 UTCJul 20, 18:55 UTC15m
2026-07-20 N4727D HMT → HMT Jul 20, 18:25 UTCJul 20, 18:35 UTC10m
2026-07-20 N4727D RBK → HMT Jul 20, 17:55 UTCJul 20, 18:10 UTC15m
2026-07-20 N4727D RBK → RBK Jul 20, 15:45 UTCJul 20, 16:40 UTC55m
2026-07-20 N4727D RBK → RBK Jul 20, 13:45 UTCJul 20, 14:30 UTC45m
2026-07-20 N4727D HMT → RBK Jul 20, 00:10 UTCJul 20, 01:05 UTC55m
2026-07-19 N4727D - Jul 19, 23:25 UTCJul 19, 23:55 UTC30m
2026-07-19 N4727D - Jul 19, 19:45 UTCJul 19, 20:20 UTC35m
2026-07-19 N4727D - Jul 19, 15:25 UTCJul 19, 16:30 UTC1h 5m
2026-07-18 N4727D - Jul 18, 19:20 UTCJul 18, 20:15 UTC55m
2026-07-18 N4727D RBK → RBK Jul 18, 15:50 UTCJul 18, 16:40 UTC50m
2026-07-18 N4727D - Jul 18, 01:54 UTCJul 18, 03:20 UTC1h 26m
2026-07-17 N4727D RBK → RBK Jul 17, 20:20 UTCJul 17, 22:00 UTC1h 40m
2026-07-17 N4727D - Jul 17, 17:50 UTCJul 17, 18:40 UTC50m
2026-07-16 N4727D RBK → RBK Jul 16, 22:49 UTCJul 16, 23:25 UTC35m
2026-07-16 N4727D - Jul 16, 21:25 UTCJul 16, 22:10 UTC45m
2026-07-16 N4727D RBK → RBK Jul 16, 16:44 UTCJul 16, 19:30 UTC2h 45m
2026-07-16 N4727D RBK → RBK Jul 16, 14:50 UTCJul 16, 16:05 UTC1h 15m
2026-07-16 N4727D - Jul 16, 13:15 UTCJul 16, 13:54 UTC40m
2026-07-16 N4727D - Jul 16, 01:40 UTCJul 16, 02:40 UTC1h 0m
2026-07-15 N4727D - Jul 15, 18:45 UTCJul 15, 18:55 UTC10m
2026-07-15 N4727D HMT → HMT Jul 15, 18:20 UTCJul 15, 18:40 UTC20m
2026-07-15 N4727D RBK → HMT Jul 15, 17:50 UTCJul 15, 18:05 UTC15m
2026-07-15 N4727D - Jul 15, 14:00 UTCJul 15, 14:50 UTC50m
2026-07-12 N4727D - Jul 12, 18:01 UTCJul 12, 18:45 UTC45m
2026-07-12 N4727D RBK → RBK Jul 12, 15:45 UTCJul 12, 16:30 UTC45m
2026-07-12 N4727D - Jul 12, 02:10 UTCJul 12, 02:45 UTC35m
2026-07-11 N4727D BUR → RBK Jul 11, 19:25 UTCJul 11, 20:20 UTC55m
2026-07-11 N4727D RBK → WHP Jul 11, 17:30 UTCJul 11, 18:50 UTC1h 20m
2026-07-11 N4727D RBK → RBK Jul 11, 02:35 UTCJul 11, 03:10 UTC35m

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 N4727D page for operator, model, and routing details .

Mode-S A5CBD9 frequently asked

What is Mode-S code A5CBD9?
A5CBD9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4727D.
Where is Mode-S A5CBD9 registered?
Mode-S code A5CBD9 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 A5CBD9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5CBD9, octal 51345731, decimal 10,865,625.
What flights does A5CBD9 operate?
Mode-S A5CBD9 has broadcast 1 distinct callsign, including N4727D.