Apparatus

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sensors Mode-S transponder

A9BD90

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N727AC · PIPER PA-28-140/150/160/180 · operated by LONG ISLAND AVIATORS LLC

Hex
A9BD90
Octal
52336620
Decimal
11,124,112
Country
US
Tail
N727AC
Type
P28A
Broadcasting now · callsign N727AC · 900 ft
Flights observed
169
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Current position

A9BD90 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9BD90 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
N727AC - 169 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-25 N727AC - Jun 25, 15:10 UTCJun 25, 16:29 UTC1h 20m
2026-06-25 N727AC - Jun 25, 11:25 UTCJun 25, 14:04 UTC2h 40m
2026-06-24 N727AC FRG → FRG Jun 24, 20:05 UTCJun 24, 20:54 UTC50m
2026-06-24 N727AC - Jun 24, 17:05 UTCJun 24, 17:50 UTC45m
2026-06-24 N727AC - Jun 24, 15:05 UTCJun 24, 15:59 UTC55m
2026-06-24 N727AC - Jun 24, 12:30 UTCJun 24, 13:40 UTC1h 10m
2026-06-22 N727AC - Jun 22, 16:24 UTCJun 22, 17:00 UTC35m
2026-06-21 N727AC FRG → FRG Jun 21, 23:14 UTCJun 22, 00:50 UTC1h 35m
2026-06-21 N727AC - Jun 21, 16:59 UTCJun 21, 17:35 UTC35m
2026-06-21 N727AC - Jun 21, 13:09 UTCJun 21, 14:05 UTC55m
2026-06-21 N727AC FRG → FRG Jun 21, 02:10 UTCJun 21, 02:24 UTC15m
2026-06-20 N727AC - Jun 20, 10:59 UTCJun 20, 11:20 UTC20m
2026-06-19 N727AC FRG → FRG Jun 19, 21:09 UTCJun 19, 21:59 UTC50m
2026-06-19 N727AC - Jun 19, 17:24 UTCJun 19, 18:49 UTC1h 25m
2026-06-19 N727AC - Jun 19, 13:29 UTCJun 19, 14:34 UTC1h 5m
2026-06-17 N727AC FRG → FRG Jun 17, 20:30 UTCJun 17, 22:30 UTC2h 0m
2026-06-17 N727AC FRG → FRG Jun 17, 17:15 UTCJun 17, 18:20 UTC1h 5m
2026-06-17 N727AC - Jun 17, 13:30 UTCJun 17, 14:15 UTC45m
2026-06-17 N727AC - Jun 17, 11:35 UTCJun 17, 13:00 UTC1h 25m
2026-06-16 N727AC FRG → FRG Jun 16, 20:15 UTCJun 16, 21:45 UTC1h 30m
2026-06-16 N727AC FRG → FRG Jun 16, 18:09 UTCJun 16, 18:50 UTC40m
2026-06-16 N727AC - Jun 16, 14:35 UTCJun 16, 16:15 UTC1h 40m
2026-06-16 N727AC FRG → FRG Jun 16, 12:50 UTCJun 16, 13:55 UTC1h 5m
2026-06-15 N727AC - Jun 15, 22:45 UTCJun 15, 23:19 UTC35m
2026-06-15 N727AC - Jun 15, 21:04 UTCJun 15, 21:45 UTC40m
2026-06-14 N727AC FRG → FRG Jun 14, 16:20 UTCJun 14, 17:15 UTC55m
2026-06-13 N727AC - Jun 13, 14:25 UTCJun 13, 15:55 UTC1h 30m
2026-06-13 N727AC FRG → FRG Jun 13, 12:40 UTCJun 13, 13:30 UTC50m
2026-06-12 N727AC - Jun 12, 13:20 UTCJun 12, 15:10 UTC1h 50m
2026-06-11 N727AC FRG → FRG Jun 11, 17:40 UTCJun 11, 18:45 UTC1h 5m
2026-06-11 N727AC - Jun 11, 13:20 UTCJun 11, 14:50 UTC1h 30m
2026-06-10 N727AC FRG → FRG Jun 10, 19:20 UTCJun 10, 20:15 UTC55m
2026-06-09 N727AC - Jun 9, 19:10 UTCJun 9, 20:50 UTC1h 40m
2026-06-09 N727AC FRG → FRG Jun 9, 15:10 UTCJun 9, 15:50 UTC40m
2026-06-09 N727AC - Jun 9, 11:45 UTCJun 9, 13:05 UTC1h 20m
2026-06-08 N727AC - Jun 8, 17:05 UTCJun 8, 18:30 UTC1h 25m
2026-06-08 N727AC - Jun 8, 11:50 UTCJun 8, 13:40 UTC1h 50m
2026-06-07 N727AC FRG → FRG Jun 7, 16:05 UTCJun 7, 16:50 UTC45m
2026-06-07 N727AC FRG → FRG Jun 7, 13:00 UTCJun 7, 14:00 UTC1h 0m
2026-06-07 N727AC - Jun 7, 10:30 UTCJun 7, 11:45 UTC1h 15m
2026-06-06 N727AC FRG → FRG Jun 6, 17:10 UTCJun 6, 18:19 UTC1h 10m
2026-06-06 N727AC FRG → FRG Jun 6, 12:54 UTCJun 6, 14:09 UTC1h 15m
2026-06-05 N727AC - Jun 5, 16:55 UTCJun 5, 17:25 UTC30m
2026-06-04 N727AC FRG → FRG Jun 4, 22:35 UTCJun 5, 00:15 UTC1h 40m
2026-06-04 N727AC - Jun 4, 19:30 UTCJun 4, 21:25 UTC1h 55m
2026-06-04 N727AC - Jun 4, 16:35 UTCJun 4, 18:25 UTC1h 50m
2026-06-04 N727AC FRG → FRG Jun 4, 12:35 UTCJun 4, 13:50 UTC1h 15m
2026-06-03 N727AC FRG → FRG Jun 3, 17:25 UTCJun 3, 18:35 UTC1h 10m
2026-06-03 N727AC - Jun 3, 14:50 UTCJun 3, 15:50 UTC1h 0m
2026-06-02 N727AC FRG → FRG Jun 2, 22:10 UTCJun 3, 00:05 UTC1h 55m

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 N727AC page for operator, model, and routing details .

Mode-S A9BD90 frequently asked

What is Mode-S code A9BD90?
A9BD90 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N727AC.
Where is Mode-S A9BD90 registered?
Mode-S code A9BD90 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 A9BD90 broadcasting right now?
Yes. Mode-S A9BD90 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9BD90, octal 52336620, decimal 11,124,112.
What flights does A9BD90 operate?
Mode-S A9BD90 has broadcast 1 distinct callsign, including N727AC.