Apparatus

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sensors Mode-S transponder

A8303F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N627AA · operated by PEREGRINE HOWARD PARTNERS II LP

Hex
A8303F
Octal
52030077
Decimal
11,022,399
Country
US
Tail
N627AA
Type
P28A
No current signal · last broadcast 1d ago
Flights observed
9
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A8303F.

Country allocation

The ICAO 24-bit address A8303F 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
N627AA - 9 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 N627AA - Apr 13, 21:50 UTCApr 13, 22:55 UTC1h 5m
2026-04-13 N627AA - Apr 13, 20:55 UTCApr 13, 21:00 UTC5m
2026-04-13 N627AA LNA → LNA Apr 13, 20:40 UTCApr 13, 20:50 UTC10m
2026-04-13 N627AA - Apr 13, 19:50 UTCApr 13, 20:20 UTC30m
2026-04-13 N627AA - Apr 13, 19:30 UTCApr 13, 20:10 UTC40m
2026-04-13 N627AA - Apr 13, 18:15 UTCApr 13, 18:55 UTC40m
2026-04-13 N627AA - Apr 13, 18:00 UTCApr 13, 18:10 UTC10m
2026-04-13 N627AA LNA → LNA Apr 13, 12:55 UTCApr 13, 15:40 UTC2h 45m
2026-04-12 N627AA - Apr 12, 17:15 UTCApr 12, 18:25 UTC1h 10m

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 N627AA page for operator, model, and routing details .

Mode-S A8303F frequently asked

What is Mode-S code A8303F?
A8303F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N627AA.
Where is Mode-S A8303F registered?
Mode-S code A8303F 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 A8303F broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8303F, octal 52030077, decimal 11,022,399.
What flights does A8303F operate?
Mode-S A8303F has broadcast 1 distinct callsign, including N627AA.