Apparatus

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sensors Mode-S transponder

A9BE4C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N727HR · operated by AIRPLANE FACTORY INC

Hex
A9BE4C
Octal
52337114
Decimal
11,124,300
Country
US
Tail
N727HR
Type
SLG4
No current signal · last broadcast 1h ago
Flights observed
77
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A9BE4C.

Country allocation

The ICAO 24-bit address A9BE4C 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
N727HR - 77 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-22 N727HR SEE → SEE Jun 22, 00:20 UTCJun 22, 01:35 UTC1h 15m
2026-06-20 N727HR SEE → SEE Jun 20, 18:14 UTCJun 20, 18:45 UTC30m
2026-06-20 N727HR SEE → SEE Jun 20, 16:29 UTCJun 20, 18:04 UTC1h 35m
2026-06-20 N727HR - Jun 20, 00:24 UTCJun 20, 01:19 UTC55m
2026-06-19 N727HR - Jun 19, 22:09 UTCJun 19, 22:39 UTC30m
2026-06-19 N727HR - Jun 19, 20:34 UTCJun 19, 21:04 UTC30m
2026-06-19 N727HR - Jun 19, 18:44 UTCJun 19, 19:25 UTC40m
2026-06-18 N727HR - Jun 18, 23:40 UTCJun 19, 00:40 UTC59m
2026-06-18 N727HR - Jun 18, 21:45 UTCJun 18, 22:25 UTC40m
2026-06-18 N727HR SEE → SEE Jun 18, 19:20 UTCJun 18, 19:55 UTC35m
2026-06-16 N727HR - Jun 16, 20:45 UTCJun 16, 20:55 UTC10m
2026-06-15 N727HR - Jun 15, 21:20 UTCJun 15, 22:45 UTC1h 25m
2026-06-15 N727HR - Jun 15, 18:04 UTCJun 15, 19:14 UTC1h 10m
2026-06-15 N727HR - Jun 15, 16:55 UTCJun 15, 17:59 UTC1h 5m
2026-06-13 N727HR SEE → SEE Jun 13, 19:30 UTCJun 13, 20:25 UTC55m
2026-06-12 N727HR - Jun 12, 22:10 UTCJun 12, 22:45 UTC35m
2026-06-12 N727HR RBK → HMT Jun 12, 21:55 UTCJun 12, 22:05 UTC10m
2026-06-12 N727HR - Jun 12, 18:45 UTCJun 12, 19:15 UTC30m
2026-06-11 N727HR - Jun 11, 21:25 UTCJun 11, 22:20 UTC55m
2026-06-11 N727HR - Jun 11, 20:40 UTCJun 11, 21:20 UTC40m
2026-06-10 N727HR - Jun 10, 21:00 UTCJun 10, 22:50 UTC1h 50m
2026-06-10 N727HR - Jun 10, 17:45 UTCJun 10, 19:15 UTC1h 30m
2026-06-09 N727HR - Jun 9, 20:50 UTCJun 9, 21:15 UTC25m
2026-06-09 N727HR - Jun 9, 18:45 UTCJun 9, 19:40 UTC55m
2026-06-09 N727HR - Jun 9, 16:45 UTCJun 9, 17:40 UTC55m
2026-06-09 N727HR - Jun 9, 15:30 UTCJun 9, 15:50 UTC20m
2026-06-09 N727HR - Jun 9, 01:30 UTCJun 9, 02:30 UTC1h 0m
2026-06-09 N727HR SEE → SEE Jun 9, 00:05 UTCJun 9, 00:35 UTC30m
2026-06-08 N727HR - Jun 8, 19:35 UTCJun 8, 20:30 UTC55m
2026-06-08 N727HR - Jun 8, 18:00 UTCJun 8, 18:35 UTC35m
2026-06-08 N727HR - Jun 8, 16:35 UTCJun 8, 17:00 UTC25m
2026-06-07 N727HR SEE → SEE Jun 7, 21:35 UTCJun 7, 22:35 UTC1h 0m
2026-06-07 N727HR - Jun 7, 18:55 UTCJun 7, 20:15 UTC1h 20m
2026-06-05 N727HR - Jun 5, 20:05 UTCJun 5, 20:30 UTC25m
2026-06-02 N727HR - Jun 2, 17:35 UTCJun 2, 18:30 UTC55m
2026-06-02 N727HR - Jun 2, 16:50 UTCJun 2, 17:30 UTC40m
2026-06-02 N727HR SEE → SEE Jun 2, 03:20 UTCJun 2, 03:50 UTC30m
2026-06-01 N727HR - Jun 1, 20:35 UTCJun 1, 21:30 UTC55m
2026-06-01 N727HR SEE → SEE Jun 1, 16:25 UTCJun 1, 17:20 UTC55m
2026-05-28 N727HR SEE → SEE May 28, 16:30 UTCMay 28, 17:30 UTC1h 0m
2026-05-27 N727HR SEE → SEE May 27, 19:15 UTCMay 27, 20:20 UTC1h 5m
2026-05-26 N727HR SEE → SEE May 26, 14:35 UTCMay 26, 15:35 UTC1h 0m
2026-05-22 N727HR SEE → SEE May 22, 16:50 UTCMay 22, 17:40 UTC50m
2026-05-20 N727HR - May 20, 16:55 UTCMay 20, 19:20 UTC2h 25m
2026-05-19 N727HR SEE → SEE May 19, 20:50 UTCMay 19, 21:55 UTC1h 5m
2026-05-19 N727HR - May 19, 18:55 UTCMay 19, 19:55 UTC1h 0m
2026-05-19 N727HR - May 19, 16:35 UTCMay 19, 17:20 UTC45m
2026-05-18 N727HR - May 18, 23:30 UTCMay 19, 00:25 UTC55m
2026-05-18 N727HR SEE → SEE May 18, 19:30 UTCMay 18, 19:55 UTC25m
2026-05-15 N727HR SEE → SEE May 15, 00:20 UTCMay 15, 01:25 UTC1h 5m

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 N727HR page for operator, model, and routing details .

Mode-S A9BE4C frequently asked

What is Mode-S code A9BE4C?
A9BE4C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N727HR.
Where is Mode-S A9BE4C registered?
Mode-S code A9BE4C 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 A9BE4C broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9BE4C, octal 52337114, decimal 11,124,300.
What flights does A9BE4C operate?
Mode-S A9BE4C has broadcast 1 distinct callsign, including N727HR.