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sensors Mode-S transponder

ADD7A5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N991PF · operated by CIRRUS DESIGN CORP

Hex
ADD7A5
Octal
53353645
Decimal
11,392,933
Country
US
Tail
N991PF
Type
SR20
No current signal · last broadcast 6h ago
Flights observed
112
Distinct callsigns
1
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S ADD7A5.

Country allocation

The ICAO 24-bit address ADD7A5 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
N991PF - 112 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-08 N991PF - Jul 8, 13:45 UTCJul 8, 15:10 UTC1h 25m
2026-07-07 N991PF - Jul 7, 19:00 UTCJul 7, 19:35 UTC35m
2026-07-07 N991PF - Jul 7, 17:45 UTCJul 7, 18:05 UTC20m
2026-07-01 N991PF - Jul 1, 19:20 UTCJul 1, 20:55 UTC1h 35m
2026-07-01 N991PF - Jul 1, 15:30 UTCJul 1, 16:50 UTC1h 20m
2026-07-01 N991PF - Jul 1, 14:25 UTCJul 1, 14:45 UTC20m
2026-07-01 N991PF - Jul 1, 13:05 UTCJul 1, 13:30 UTC25m
2026-06-30 N991PF - Jun 30, 19:40 UTCJun 30, 22:20 UTC2h 40m
2026-06-30 N991PF - Jun 30, 13:25 UTCJun 30, 15:45 UTC2h 20m
2026-06-29 N991PF - Jun 29, 15:09 UTCJun 29, 15:45 UTC35m
2026-06-29 N991PF - Jun 29, 13:59 UTCJun 29, 14:19 UTC20m
2026-06-28 N991PF - Jun 28, 19:55 UTCJun 28, 20:34 UTC40m
2026-06-28 N991PF - Jun 28, 15:24 UTCJun 28, 16:09 UTC45m
2026-06-28 N991PF - Jun 28, 02:10 UTCJun 28, 02:29 UTC20m
2026-06-26 N991PF - Jun 26, 22:10 UTCJun 26, 22:40 UTC30m
2026-06-26 N991PF - Jun 26, 21:10 UTCJun 26, 21:24 UTC15m
2026-06-26 N991PF - Jun 26, 18:39 UTCJun 26, 19:04 UTC25m
2026-06-26 N991PF - Jun 26, 17:44 UTCJun 26, 17:54 UTC10m
2026-06-26 N991PF HVN → HPN Jun 26, 15:05 UTCJun 26, 15:54 UTC50m
2026-06-26 N991PF - Jun 26, 14:29 UTCJun 26, 14:59 UTC30m
2026-06-25 N991PF - Jun 25, 19:34 UTCJun 25, 19:59 UTC25m
2026-06-25 N991PF - Jun 25, 18:29 UTCJun 25, 18:55 UTC25m
2026-06-25 N991PF HPN → HPN Jun 25, 17:20 UTCJun 25, 17:44 UTC25m
2026-06-25 N991PF - Jun 25, 01:24 UTCJun 25, 02:59 UTC1h 35m
2026-06-24 N991PF - Jun 24, 14:45 UTCJun 24, 15:49 UTC1h 5m
2026-06-24 N991PF - Jun 24, 13:40 UTCJun 24, 14:39 UTC1h 0m
2026-06-24 N991PF RDG → HPN Jun 24, 01:49 UTCJun 24, 02:54 UTC1h 5m
2026-06-23 N991PF - Jun 23, 22:49 UTCJun 23, 23:44 UTC55m
2026-06-23 N991PF - Jun 23, 17:04 UTCJun 23, 19:00 UTC1h 55m
2026-06-22 N991PF - Jun 22, 14:10 UTCJun 22, 15:20 UTC1h 10m
2026-06-22 N991PF HPN → LNS Jun 22, 12:54 UTCJun 22, 13:54 UTC1h 0m
2026-06-21 N991PF - Jun 21, 19:14 UTCJun 21, 20:34 UTC1h 20m
2026-06-21 N991PF - Jun 21, 15:09 UTCJun 21, 16:34 UTC1h 25m
2026-06-21 N991PF - Jun 21, 13:04 UTCJun 21, 14:15 UTC1h 10m
2026-06-20 N991PF - Jun 20, 17:49 UTCJun 20, 18:54 UTC1h 5m
2026-06-19 N991PF - Jun 19, 17:14 UTCJun 19, 19:49 UTC2h 35m
2026-06-19 N991PF - Jun 19, 12:44 UTCJun 19, 14:09 UTC1h 25m
2026-06-17 N991PF - Jun 17, 20:50 UTCJun 17, 21:20 UTC30m
2026-06-17 N991PF - Jun 17, 13:50 UTCJun 17, 14:20 UTC30m
2026-06-16 N991PF - Jun 16, 21:55 UTCJun 16, 22:15 UTC20m
2026-06-16 N991PF - Jun 16, 20:35 UTCJun 16, 20:50 UTC15m
2026-06-16 N991PF - Jun 16, 11:45 UTCJun 16, 13:34 UTC1h 50m
2026-06-15 N991PF - Jun 15, 19:55 UTCJun 15, 20:30 UTC35m
2026-06-14 N991PF HPN → HPN Jun 14, 19:00 UTCJun 14, 20:15 UTC1h 15m
2026-06-14 N991PF - Jun 14, 14:10 UTCJun 14, 14:30 UTC20m
2026-06-13 N991PF - Jun 13, 18:15 UTCJun 13, 19:00 UTC45m
2026-06-13 N991PF - Jun 13, 12:50 UTCJun 13, 13:45 UTC55m
2026-06-07 N991PF - Jun 7, 13:35 UTCJun 7, 14:35 UTC1h 0m
2026-06-06 N991PF - Jun 6, 17:29 UTCJun 6, 18:50 UTC1h 20m
2026-06-06 N991PF - Jun 6, 13:54 UTCJun 6, 15:25 UTC1h 30m

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 N991PF page for operator, model, and routing details .

Mode-S ADD7A5 frequently asked

What is Mode-S code ADD7A5?
ADD7A5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N991PF.
Where is Mode-S ADD7A5 registered?
Mode-S code ADD7A5 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 ADD7A5 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADD7A5, octal 53353645, decimal 11,392,933.
What flights does ADD7A5 operate?
Mode-S ADD7A5 has broadcast 1 distinct callsign, including N991PF.