Apparatus

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sensors Mode-S transponder

AB35D8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N821PA · PIPER PA-28-140/150/160/180 · operated by SKYWEST LEASING INC

Hex
AB35D8
Octal
52632730
Decimal
11,220,440
Country
US
Tail
N821PA
Type
P28A
Broadcasting now · callsign ASI532 · 5,500 ft
Flights observed
154
Distinct callsigns
1
Country
US
Last broadcast
6m ago

Current position

AB35D8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB35D8 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
ASI532 - 154 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ASI532 - Jul 14, 18:15 UTCJul 14, 20:00 UTC1h 45m
2026-07-14 ASI532 DVT → DVT Jul 14, 13:40 UTCJul 14, 16:15 UTC2h 35m
2026-07-13 ASI532 - Jul 13, 12:20 UTCJul 13, 14:00 UTC1h 40m
2026-07-12 ASI532 DVT → DVT Jul 12, 17:40 UTCJul 12, 19:10 UTC1h 30m
2026-07-12 ASI532 - Jul 12, 14:25 UTCJul 12, 15:01 UTC35m
2026-07-11 ASI532 DVT → DVT Jul 11, 19:00 UTCJul 11, 20:20 UTC1h 20m
2026-07-11 ASI532 DVT → DVT Jul 11, 13:15 UTCJul 11, 14:00 UTC45m
2026-07-10 ASI532 DVT → DVT Jul 10, 17:55 UTCJul 10, 18:00 UTC5m
2026-07-10 ASI532 DVT → DVT Jul 10, 16:40 UTCJul 10, 17:00 UTC20m
2026-07-10 ASI532 - Jul 10, 16:10 UTCJul 10, 16:35 UTC25m
2026-07-09 ASI532 - Jul 9, 15:45 UTCJul 9, 16:50 UTC1h 5m
2026-07-09 ASI532 - Jul 9, 14:05 UTCJul 9, 14:45 UTC40m
2026-07-07 ASI532 - Jul 7, 14:50 UTCJul 7, 16:20 UTC1h 30m
2026-07-03 ASI532 - Jul 3, 13:00 UTCJul 3, 14:25 UTC1h 25m
2026-07-03 ASI532 ONT → DVT Jul 3, 05:35 UTCJul 3, 08:35 UTC3h 0m
2026-07-03 ASI532 - Jul 3, 02:40 UTCJul 3, 03:50 UTC1h 10m
2026-07-03 ASI532 - Jul 3, 00:50 UTCJul 3, 02:05 UTC1h 15m
2026-07-02 ASI532 DVT → DVT Jul 2, 17:45 UTCJul 2, 18:35 UTC50m
2026-07-02 ASI532 DVT → DVT Jul 2, 15:05 UTCJul 2, 16:45 UTC1h 40m
2026-06-23 ASI532 DVT → DVT Jun 23, 20:29 UTCJun 23, 21:14 UTC45m
2026-06-23 ASI532 DVT → DVT Jun 23, 15:59 UTCJun 23, 17:30 UTC1h 30m
2026-06-23 ASI532 - Jun 23, 13:05 UTCJun 23, 13:50 UTC45m
2026-06-22 ASI532 - Jun 22, 18:24 UTCJun 22, 20:19 UTC1h 55m
2026-06-22 ASI532 DVT → DVT Jun 22, 16:10 UTCJun 22, 17:20 UTC1h 10m
2026-06-21 ASI532 DVT → DVT Jun 21, 04:20 UTCJun 21, 07:04 UTC2h 45m
2026-06-20 ASI532 DVT → DVT Jun 20, 20:55 UTCJun 20, 22:35 UTC1h 40m
2026-06-20 ASI532 - Jun 20, 15:34 UTCJun 20, 16:19 UTC45m
2026-06-20 ASI532 DVT → DVT Jun 20, 12:54 UTCJun 20, 14:24 UTC1h 30m
2026-06-19 ASI532 DVT → DVT Jun 19, 17:49 UTCJun 19, 18:39 UTC50m
2026-06-19 ASI532 DVT → DVT Jun 19, 15:29 UTCJun 19, 16:44 UTC1h 15m
2026-06-19 ASI532 - Jun 19, 13:04 UTCJun 19, 13:24 UTC20m
2026-06-18 ASI532 DVT → DVT Jun 18, 23:50 UTCJun 19, 00:55 UTC1h 4m
2026-06-18 ASI532 - Jun 18, 19:00 UTCJun 18, 19:55 UTC55m
2026-06-18 ASI532 DVT → DVT Jun 18, 16:15 UTCJun 18, 17:45 UTC1h 30m
2026-06-18 ASI532 - Jun 18, 13:30 UTCJun 18, 14:45 UTC1h 15m
2026-06-17 ASI532 DVT → DVT Jun 17, 18:15 UTCJun 17, 20:15 UTC2h 0m
2026-06-17 ASI532 DVT → DVT Jun 17, 16:00 UTCJun 17, 17:20 UTC1h 20m
2026-06-17 ASI532 - Jun 17, 13:05 UTCJun 17, 14:45 UTC1h 40m
2026-06-16 ASI532 - Jun 16, 18:29 UTCJun 16, 19:30 UTC1h 0m
2026-06-16 ASI532 - Jun 16, 15:40 UTCJun 16, 16:25 UTC45m
2026-06-16 ASI532 - Jun 16, 13:15 UTCJun 16, 14:35 UTC1h 20m
2026-06-15 ASI532 - Jun 15, 14:34 UTCJun 15, 16:04 UTC1h 30m
2026-06-15 ASI532 DVT → DVT Jun 15, 13:05 UTCJun 15, 13:15 UTC10m
2026-06-14 ASI532 DVT → DVT Jun 14, 16:20 UTCJun 14, 17:20 UTC1h 0m
2026-06-14 ASI532 - Jun 14, 13:30 UTCJun 14, 14:50 UTC1h 20m
2026-06-13 ASI532 DVT → DVT Jun 13, 17:25 UTCJun 13, 17:45 UTC20m
2026-06-12 ASI532 DVT → DVT Jun 12, 20:55 UTCJun 12, 21:40 UTC45m
2026-06-12 ASI532 DVT → DVT Jun 12, 18:35 UTCJun 12, 19:40 UTC1h 5m
2026-06-12 ASI532 - Jun 12, 13:25 UTCJun 12, 14:30 UTC1h 5m
2026-06-11 ASI532 DVT → DVT Jun 11, 17:10 UTCJun 11, 18:15 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 N821PA page for operator, model, and routing details .

Mode-S AB35D8 frequently asked

What is Mode-S code AB35D8?
AB35D8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N821PA.
Where is Mode-S AB35D8 registered?
Mode-S code AB35D8 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 AB35D8 broadcasting right now?
Yes. Mode-S AB35D8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB35D8, octal 52632730, decimal 11,220,440.
What flights does AB35D8 operate?
Mode-S AB35D8 has broadcast 1 distinct callsign, including ASI532.