Apparatus

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sensors Mode-S transponder

A5B1BB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N466UV · PIPER PA-44 Seminole · operated by UTAH VALLEY UNIVERSITY

Hex
A5B1BB
Octal
51330673
Decimal
10,858,939
Country
US
Tail
N466UV
Type
PA44
No current signal · last broadcast 3h ago
Flights observed
186
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A5B1BB.

Country allocation

The ICAO 24-bit address A5B1BB 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
N466UV - 186 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N466UV PVU → PVU Jul 14, 15:55 UTCJul 14, 16:45 UTC50m
2026-07-14 N466UV - Jul 14, 14:15 UTCJul 14, 14:35 UTC20m
2026-07-14 N466UV - Jul 14, 13:10 UTCJul 14, 13:20 UTC10m
2026-07-13 N466UV - Jul 13, 16:30 UTCJul 13, 17:30 UTC1h 0m
2026-07-13 N466UV PVU → PVU Jul 13, 13:55 UTCJul 13, 15:30 UTC1h 35m
2026-07-09 N466UV PVU → PVU Jul 9, 16:30 UTCJul 9, 17:45 UTC1h 15m
2026-07-03 N466UV - Jul 3, 17:40 UTCJul 3, 17:50 UTC10m
2026-07-03 N466UV PVU → PVU Jul 3, 15:50 UTCJul 3, 16:40 UTC50m
2026-07-03 N466UV PVU → PVU Jul 3, 13:40 UTCJul 3, 14:40 UTC1h 0m
2026-07-02 N466UV - Jul 2, 23:20 UTCJul 2, 23:50 UTC30m
2026-07-02 N466UV - Jul 2, 21:30 UTCJul 2, 22:35 UTC1h 5m
2026-07-02 N466UV PVU → PVU Jul 2, 20:35 UTCJul 2, 20:45 UTC10m
2026-07-02 N466UV PVU → PVU Jul 2, 19:25 UTCJul 2, 19:55 UTC30m
2026-07-02 N466UV PVU → PVU Jul 2, 17:50 UTCJul 2, 18:25 UTC35m
2026-07-02 N466UV PVU → PVU Jul 2, 15:30 UTCJul 2, 16:20 UTC50m
2026-07-01 N466UV - Jul 1, 23:05 UTCJul 2, 00:15 UTC1h 10m
2026-07-01 N466UV PVU → PVU Jul 1, 18:35 UTCJul 1, 20:10 UTC1h 35m
2026-07-01 N466UV PVU → PVU Jul 1, 15:40 UTCJul 1, 17:15 UTC1h 35m
2026-07-01 N466UV - Jul 1, 13:40 UTCJul 1, 14:20 UTC40m
2026-06-30 N466UV PVU → PVU Jun 30, 17:15 UTCJun 30, 18:50 UTC1h 35m
2026-06-30 N466UV - Jun 30, 14:35 UTCJun 30, 15:35 UTC1h 0m
2026-06-29 N466UV PVU → PVU Jun 29, 19:09 UTCJun 29, 19:24 UTC15m
2026-06-29 N466UV PVU → PVU Jun 29, 17:55 UTCJun 29, 18:14 UTC20m
2026-06-29 N466UV - Jun 29, 15:04 UTCJun 29, 16:04 UTC1h 0m
2026-06-29 N466UV PVU → PVU Jun 29, 12:34 UTCJun 29, 13:54 UTC1h 20m
2026-06-28 N466UV - Jun 28, 16:49 UTCJun 28, 18:05 UTC1h 15m
2026-06-28 N466UV - Jun 28, 14:34 UTCJun 28, 15:09 UTC35m
2026-06-27 N466UV PVU → PVU Jun 27, 16:55 UTCJun 27, 18:35 UTC1h 40m
2026-06-27 N466UV - Jun 27, 15:00 UTCJun 27, 16:20 UTC1h 20m
2026-06-26 N466UV PVU → NPH Jun 26, 20:00 UTCJun 26, 20:20 UTC20m
2026-06-26 N466UV PVU → PVU Jun 26, 16:24 UTCJun 26, 17:29 UTC1h 5m
2026-06-26 N466UV PVU → PVU Jun 26, 13:59 UTCJun 26, 15:10 UTC1h 10m
2026-06-25 N466UV PVU → PVU Jun 25, 19:49 UTCJun 25, 20:14 UTC25m
2026-06-25 N466UV - Jun 25, 17:20 UTCJun 25, 18:19 UTC1h 0m
2026-06-25 N466UV - Jun 25, 13:35 UTCJun 25, 14:24 UTC50m
2026-06-24 N466UV PVU → PVU Jun 24, 21:50 UTCJun 24, 22:45 UTC55m
2026-06-24 N466UV - Jun 24, 15:24 UTCJun 24, 16:45 UTC1h 20m
2026-06-24 N466UV PVU → PVU Jun 24, 13:44 UTCJun 24, 14:34 UTC50m
2026-06-24 N466UV - Jun 24, 04:24 UTCJun 24, 04:34 UTC10m
2026-06-23 N466UV - Jun 23, 23:44 UTCJun 24, 00:09 UTC25m
2026-06-23 N466UV PVU → PVU Jun 23, 21:34 UTCJun 23, 22:29 UTC55m
2026-06-21 N466UV PVU → PVU Jun 21, 16:30 UTCJun 21, 17:24 UTC55m
2026-06-21 N466UV PVU → PVU Jun 21, 14:10 UTCJun 21, 15:19 UTC1h 10m
2026-06-20 N466UV PVU → PVU Jun 20, 15:49 UTCJun 20, 16:49 UTC1h 0m
2026-06-20 N466UV PVU → PVU Jun 20, 13:39 UTCJun 20, 14:54 UTC1h 15m
2026-06-19 N466UV - Jun 19, 14:59 UTCJun 19, 16:19 UTC1h 20m
2026-06-17 N466UV PVU → PVU Jun 17, 17:55 UTCJun 17, 18:35 UTC40m
2026-06-17 N466UV PVU → PVU Jun 17, 15:50 UTCJun 17, 16:40 UTC50m
2026-06-17 N466UV PVU → PVU Jun 17, 13:50 UTCJun 17, 14:35 UTC45m
2026-06-16 N466UV PVU → PVU Jun 16, 22:05 UTCJun 16, 23:40 UTC1h 35m

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 N466UV page for operator, model, and routing details .

Mode-S A5B1BB frequently asked

What is Mode-S code A5B1BB?
A5B1BB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N466UV.
Where is Mode-S A5B1BB registered?
Mode-S code A5B1BB 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 A5B1BB broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5B1BB, octal 51330673, decimal 10,858,939.
What flights does A5B1BB operate?
Mode-S A5B1BB has broadcast 1 distinct callsign, including N466UV.