Apparatus

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sensors Mode-S transponder

A218A2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N234PA · PIPER PA-28-140/150/160/180 · operated by JULIET TWO LLC

Hex
A218A2
Octal
50414242
Decimal
10,623,138
Country
US
Tail
N234PA
Type
P28A
No current signal · last broadcast Jul 24, 20:40 UTC
Flights observed
192
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 20:40 UTC

Last known position

Most recent position reported by Mode-S A218A2.

Country allocation

The ICAO 24-bit address A218A2 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
N234PA - 192 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N234PA LNA → LNA Jul 24, 19:15 UTCJul 24, 20:40 UTC1h 25m
2026-07-23 N234PA LNA → LNA Jul 23, 21:50 UTCJul 23, 23:30 UTC1h 40m
2026-07-23 N234PA - Jul 23, 14:40 UTCJul 23, 15:15 UTC35m
2026-07-23 N234PA - Jul 23, 13:25 UTCJul 23, 14:05 UTC40m
2026-07-22 N234PA LNA → LNA Jul 22, 22:00 UTCJul 22, 23:35 UTC1h 35m
2026-07-22 N234PA LNA → LNA Jul 22, 14:55 UTCJul 22, 17:25 UTC2h 30m
2026-07-22 N234PA - Jul 22, 11:10 UTCJul 22, 12:15 UTC1h 5m
2026-07-21 N234PA - Jul 21, 18:40 UTCJul 21, 19:50 UTC1h 10m
2026-07-21 N234PA - Jul 21, 17:25 UTCJul 21, 18:05 UTC40m
2026-07-21 N234PA LNA → LNA Jul 21, 15:15 UTCJul 21, 16:30 UTC1h 15m
2026-07-20 N234PA LNA → LNA Jul 20, 22:15 UTCJul 20, 23:30 UTC1h 15m
2026-07-20 N234PA LNA → LNA Jul 20, 18:15 UTCJul 20, 19:35 UTC1h 20m
2026-07-20 N234PA LNA → LNA Jul 20, 15:55 UTCJul 20, 17:35 UTC1h 40m
2026-07-20 N234PA LNA → LNA Jul 20, 13:45 UTCJul 20, 14:50 UTC1h 5m
2026-07-20 N234PA LNA → LNA Jul 20, 11:35 UTCJul 20, 12:55 UTC1h 20m
2026-07-18 N234PA LNA → LNA Jul 18, 15:10 UTCJul 18, 16:15 UTC1h 5m
2026-07-18 N234PA LNA → LNA Jul 18, 11:50 UTCJul 18, 13:35 UTC1h 45m
2026-07-17 N234PA - Jul 17, 15:35 UTCJul 17, 16:15 UTC40m
2026-07-17 N234PA - Jul 17, 14:35 UTCJul 17, 14:55 UTC20m
2026-07-17 N234PA LNA → LNA Jul 17, 12:55 UTCJul 17, 14:04 UTC1h 10m
2026-07-16 N234PA LNA → LNA Jul 16, 22:19 UTCJul 16, 23:49 UTC1h 30m
2026-07-16 N234PA LNA → LNA Jul 16, 20:00 UTCJul 16, 20:55 UTC55m
2026-07-16 N234PA LNA → LNA Jul 16, 18:15 UTCJul 16, 19:14 UTC1h 0m
2026-07-16 N234PA LNA → LNA Jul 16, 15:35 UTCJul 16, 17:20 UTC1h 45m
2026-07-16 N234PA LNA → LNA Jul 16, 11:54 UTCJul 16, 13:10 UTC1h 15m
2026-07-15 N234PA LNA → LNA Jul 15, 11:25 UTCJul 15, 12:25 UTC1h 0m
2026-07-15 N234PA LNA → LNA Jul 15, 00:40 UTCJul 15, 01:55 UTC1h 15m
2026-07-14 N234PA LNA → LNA Jul 14, 22:45 UTCJul 15, 00:00 UTC1h 15m
2026-07-14 N234PA LNA → LNA Jul 14, 20:35 UTCJul 14, 21:25 UTC50m
2026-07-14 N234PA LNA → LNA Jul 14, 16:10 UTCJul 14, 17:20 UTC1h 10m
2026-07-14 N234PA - Jul 14, 12:35 UTCJul 14, 13:00 UTC25m
2026-07-14 N234PA - Jul 14, 11:30 UTCJul 14, 12:00 UTC30m
2026-07-13 N234PA LNA → LNA Jul 13, 17:45 UTCJul 13, 19:25 UTC1h 40m
2026-07-13 N234PA LNA → LNA Jul 13, 16:00 UTCJul 13, 17:10 UTC1h 10m
2026-07-13 N234PA LNA → LNA Jul 13, 13:55 UTCJul 13, 15:15 UTC1h 20m
2026-07-13 N234PA LNA → LNA Jul 13, 12:20 UTCJul 13, 13:10 UTC50m
2026-07-11 N234PA LNA → LNA Jul 11, 14:05 UTCJul 11, 15:15 UTC1h 10m
2026-07-10 N234PA - Jul 10, 19:40 UTCJul 10, 21:10 UTC1h 30m
2026-07-10 N234PA - Jul 10, 15:00 UTCJul 10, 16:30 UTC1h 30m
2026-07-09 N234PA LNA → LNA Jul 9, 22:50 UTCJul 9, 23:55 UTC1h 5m
2026-07-09 N234PA LNA → LNA Jul 9, 14:45 UTCJul 9, 15:55 UTC1h 10m
2026-07-08 N234PA LNA → LNA Jul 8, 17:00 UTCJul 8, 18:10 UTC1h 10m
2026-07-08 N234PA LNA → LNA Jul 8, 14:35 UTCJul 8, 15:40 UTC1h 5m
2026-07-08 N234PA - Jul 8, 11:40 UTCJul 8, 12:00 UTC20m
2026-07-08 N234PA - Jul 8, 10:35 UTCJul 8, 11:05 UTC30m
2026-07-07 N234PA LNA → LNA Jul 7, 22:30 UTCJul 8, 00:15 UTC1h 45m
2026-07-07 N234PA LNA → LNA Jul 7, 20:50 UTCJul 7, 21:55 UTC1h 5m
2026-07-07 N234PA - Jul 7, 20:00 UTCJul 7, 20:15 UTC15m
2026-07-07 N234PA - Jul 7, 18:40 UTCJul 7, 19:30 UTC50m
2026-07-07 N234PA LNA → LNA Jul 7, 15:05 UTCJul 7, 15:55 UTC50m

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 N234PA page for operator, model, and routing details .

Mode-S A218A2 frequently asked

What is Mode-S code A218A2?
A218A2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N234PA.
Where is Mode-S A218A2 registered?
Mode-S code A218A2 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 A218A2 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A218A2, octal 50414242, decimal 10,623,138.
What flights does A218A2 operate?
Mode-S A218A2 has broadcast 1 distinct callsign, including N234PA.