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sensors Mode-S transponder

A53347

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N434PH · BELL 407 · operated by PHI HEALTH LLC

Hex
A53347
Octal
51231507
Decimal
10,826,567
Country
US
Tail
N434PH
Type
B407
No current signal · last broadcast 8d ago
Flights observed
38
Distinct callsigns
1
Country
US
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S A53347.

Country allocation

The ICAO 24-bit address A53347 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
N434PH - 29 2026-07-24

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-25 - - Jul 25, 04:05 UTCJul 25, 04:30 UTC25m
2026-07-24 N434PH - Jul 24, 15:25 UTCJul 24, 15:35 UTC10m
2026-07-24 N434PH - Jul 24, 14:35 UTCJul 24, 15:20 UTC45m
2026-07-22 N434PH - Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 N434PH - Jul 22, 04:20 UTCJul 22, 04:40 UTC20m
2026-07-15 N434PH - Jul 15, 07:55 UTCJul 15, 08:10 UTC15m
2026-07-15 N434PH - Jul 15, 06:45 UTCJul 15, 07:50 UTC1h 5m
2026-07-12 N434PH - Jul 12, 08:55 UTCJul 12, 09:05 UTC10m
2026-07-09 N434PH - Jul 9, 07:20 UTCJul 9, 07:30 UTC10m
2026-07-09 N434PH - Jul 9, 06:25 UTCJul 9, 07:15 UTC50m
2026-07-04 - - Jul 4, 23:05 UTCJul 4, 23:15 UTC10m
2026-07-03 - - Jul 3, 15:55 UTCJul 3, 16:10 UTC15m
2026-07-01 N434PH - Jul 1, 00:25 UTCJul 1, 01:05 UTC40m
2026-06-30 N434PH - Jun 30, 17:15 UTCJun 30, 17:45 UTC30m
2026-06-29 N434PH - Jun 29, 23:39 UTCJun 30, 00:04 UTC25m
2026-06-29 N434PH - Jun 29, 15:00 UTCJun 29, 15:04 UTC5m
2026-06-28 N434PH - Jun 28, 19:59 UTCJun 28, 21:20 UTC1h 20m
2026-06-26 N434PH - Jun 26, 05:55 UTCJun 26, 06:54 UTC1h 0m
2026-06-26 N434PH - Jun 26, 04:45 UTCJun 26, 04:55 UTC10m
2026-06-26 N434PH - Jun 26, 03:00 UTCJun 26, 03:20 UTC20m
2026-06-25 - - Jun 25, 16:50 UTCJun 25, 17:34 UTC45m
2026-06-25 - - Jun 25, 15:24 UTCJun 25, 15:54 UTC30m
2026-06-23 N434PH - Jun 23, 16:29 UTCJun 23, 17:20 UTC50m
2026-06-22 N434PH - Jun 22, 15:45 UTCJun 22, 16:50 UTC1h 5m
2026-06-21 N434PH - Jun 21, 19:55 UTCJun 21, 20:09 UTC15m
2026-06-21 N434PH - Jun 21, 19:05 UTCJun 21, 19:20 UTC15m
2026-06-21 N434PH - Jun 21, 17:24 UTCJun 21, 17:45 UTC20m
2026-06-21 N434PH - Jun 21, 16:19 UTCJun 21, 16:34 UTC15m
2026-04-24 N434PH - Apr 24, 15:30 UTCApr 24, 15:40 UTC10m
2026-04-23 - - Apr 23, 05:35 UTCApr 23, 05:50 UTC15m
2026-04-23 - - Apr 23, 01:45 UTCApr 23, 02:05 UTC20m
2026-04-21 - - Apr 21, 03:00 UTCApr 21, 03:15 UTC15m
2026-04-21 - - Apr 21, 01:30 UTCApr 21, 02:15 UTC45m
2026-04-20 N434PH - Apr 20, 16:30 UTCApr 20, 16:40 UTC10m
2026-04-17 N434PH - Apr 17, 23:25 UTCApr 17, 23:35 UTC10m
2026-04-17 N434PH - Apr 17, 22:50 UTCApr 17, 23:00 UTC10m
2026-04-17 N434PH - Apr 17, 12:55 UTCApr 17, 13:10 UTC15m
2026-04-16 N434PH - Apr 16, 13:50 UTCApr 16, 14:55 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 N434PH page for operator, model, and routing details .

Mode-S A53347 frequently asked

What is Mode-S code A53347?
A53347 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N434PH.
Where is Mode-S A53347 registered?
Mode-S code A53347 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 A53347 broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A53347, octal 51231507, decimal 10,826,567.
What flights does A53347 operate?
Mode-S A53347 has broadcast 1 distinct callsign, including N434PH.