Apparatus

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sensors Mode-S transponder

ABDF0B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N864PU · PIPER PA-28-140/150/160/180 · operated by TRUSTEES OF PURDUE UNIVERSITY

Hex
ABDF0B
Octal
52757413
Decimal
11,263,755
Country
US
Tail
N864PU
Type
P28A
Broadcasting now · callsign PDU64 · 1,325 ft
Flights observed
157
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Current position

ABDF0B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ABDF0B 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
PDU64 - 157 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 PDU64 - Jul 14, 11:40 UTCJul 14, 12:45 UTC1h 5m
2026-07-13 PDU64 - Jul 13, 13:55 UTCJul 13, 15:05 UTC1h 10m
2026-07-08 PDU64 LAF → LAF Jul 8, 16:45 UTCJul 8, 18:15 UTC1h 30m
2026-07-08 PDU64 LAF → LAF Jul 8, 13:45 UTCJul 8, 15:10 UTC1h 25m
2026-07-07 PDU64 - Jul 7, 21:25 UTCJul 7, 22:30 UTC1h 5m
2026-07-07 PDU64 LAF → LAF Jul 7, 16:00 UTCJul 7, 17:10 UTC1h 10m
2026-07-07 PDU64 - Jul 7, 14:05 UTCJul 7, 15:10 UTC1h 5m
2026-06-26 PDU64 LAF → LAF Jun 26, 16:44 UTCJun 26, 18:49 UTC2h 5m
2026-06-26 PDU64 - Jun 26, 15:10 UTCJun 26, 15:49 UTC40m
2026-06-26 PDU64 LAF → LAF Jun 26, 12:24 UTCJun 26, 14:09 UTC1h 45m
2026-06-26 PDU64 - Jun 26, 02:40 UTCJun 26, 03:20 UTC40m
2026-06-26 PDU64 - Jun 26, 01:24 UTCJun 26, 01:54 UTC30m
2026-06-25 PDU64 LAF → LAF Jun 25, 19:49 UTCJun 25, 22:04 UTC2h 15m
2026-06-25 PDU64 LAF → LAF Jun 25, 16:24 UTCJun 25, 18:04 UTC1h 40m
2026-06-25 PDU64 LAF → LAF Jun 25, 14:14 UTCJun 25, 15:15 UTC1h 0m
2026-06-25 PDU64 LAF → LAF Jun 25, 12:10 UTCJun 25, 13:14 UTC1h 5m
2026-06-24 PDU64 - Jun 24, 23:20 UTCJun 24, 23:40 UTC20m
2026-06-24 PDU64 - Jun 24, 22:14 UTCJun 24, 22:35 UTC20m
2026-06-24 PDU64 LAF → LAF Jun 24, 20:14 UTCJun 24, 21:19 UTC1h 5m
2026-06-24 PDU64 LAF → LAF Jun 24, 18:05 UTCJun 24, 19:10 UTC1h 5m
2026-06-24 PDU64 LAF → LAF Jun 24, 15:59 UTCJun 24, 17:20 UTC1h 20m
2026-06-24 PDU64 LAF → LAF Jun 24, 13:54 UTCJun 24, 14:34 UTC40m
2026-06-24 PDU64 LAF → LAF Jun 24, 11:59 UTCJun 24, 13:00 UTC1h 0m
2026-06-24 PDU64 LAF → LAF Jun 24, 02:05 UTCJun 24, 05:09 UTC3h 5m
2026-06-23 PDU64 LAF → LAF Jun 23, 22:34 UTCJun 24, 00:09 UTC1h 35m
2026-06-23 PDU64 - Jun 23, 20:19 UTCJun 23, 21:20 UTC1h 0m
2026-06-23 PDU64 - Jun 23, 18:04 UTCJun 23, 19:19 UTC1h 15m
2026-06-23 PDU64 - Jun 23, 16:09 UTCJun 23, 17:04 UTC55m
2026-06-23 PDU64 LAF → LAF Jun 23, 14:15 UTCJun 23, 15:09 UTC55m
2026-06-23 PDU64 - Jun 23, 12:05 UTCJun 23, 13:05 UTC1h 0m
2026-06-22 PDU64 - Jun 22, 22:15 UTCJun 22, 23:20 UTC1h 5m
2026-06-22 PDU64 LAF → LAF Jun 22, 17:44 UTCJun 22, 18:40 UTC55m
2026-06-20 PDU64 - Jun 20, 17:44 UTCJun 20, 20:00 UTC2h 15m
2026-06-20 PDU64 - Jun 20, 13:04 UTCJun 20, 16:19 UTC3h 15m
2026-06-19 PDU64 LAF → LAF Jun 19, 22:49 UTCJun 19, 23:54 UTC1h 5m
2026-06-19 PDU64 LAF → LAF Jun 19, 20:55 UTCJun 19, 21:59 UTC1h 5m
2026-06-19 PDU64 - Jun 19, 19:54 UTCJun 19, 20:14 UTC20m
2026-06-19 PDU64 - Jun 19, 18:54 UTCJun 19, 19:14 UTC20m
2026-06-19 PDU64 - Jun 19, 16:59 UTCJun 19, 18:05 UTC1h 5m
2026-06-19 PDU64 LAF → LAF Jun 19, 14:54 UTCJun 19, 16:09 UTC1h 15m
2026-06-19 PDU64 LAF → LAF Jun 19, 12:09 UTCJun 19, 14:04 UTC1h 55m
2026-06-18 PDU64 LAF → LAF Jun 18, 22:35 UTCJun 18, 23:40 UTC1h 5m
2026-06-18 PDU64 LAF → LAF Jun 18, 21:05 UTCJun 18, 22:30 UTC1h 25m
2026-06-18 PDU64 LAF → LAF Jun 18, 17:45 UTCJun 18, 19:50 UTC2h 5m
2026-06-18 PDU64 LAF → LAF Jun 18, 15:05 UTCJun 18, 16:20 UTC1h 15m
2026-06-18 PDU64 LAF → LAF Jun 18, 12:50 UTCJun 18, 14:15 UTC1h 25m
2026-06-10 PDU64 - Jun 10, 19:35 UTCJun 10, 21:10 UTC1h 35m
2026-06-10 PDU64 LAF → LAF Jun 10, 18:05 UTCJun 10, 19:05 UTC1h 0m
2026-06-10 PDU64 LAF → LAF Jun 10, 16:10 UTCJun 10, 17:10 UTC1h 0m
2026-06-10 PDU64 LAF → LAF Jun 10, 14:35 UTCJun 10, 15:20 UTC45m

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 N864PU page for operator, model, and routing details .

Mode-S ABDF0B frequently asked

What is Mode-S code ABDF0B?
ABDF0B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N864PU.
Where is Mode-S ABDF0B registered?
Mode-S code ABDF0B 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 ABDF0B broadcasting right now?
Yes. Mode-S ABDF0B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABDF0B, octal 52757413, decimal 11,263,755.
What flights does ABDF0B operate?
Mode-S ABDF0B has broadcast 1 distinct callsign, including PDU64.