sensors Mode-S transponder

AD5B01

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N96NH · operated by MEADE JOHN P

Hex
AD5B01
Octal
53255401
Decimal
11,361,025
Country
US
Tail
N96NH
No current signal · last broadcast Jul 25, 21:10 UTC
Flights observed
13
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 21:10 UTC

Last known position

Most recent position reported by Mode-S AD5B01.

Country allocation

The ICAO 24-bit address AD5B01 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
N96NH - 13 2026-07-25

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-07-25 N96NH - Jul 25, 20:45 UTCJul 25, 21:10 UTC25m
2026-07-25 N96NH - Jul 25, 16:20 UTCJul 25, 19:10 UTC2h 50m
2026-07-25 N96NH - Jul 25, 12:45 UTCJul 25, 15:10 UTC2h 25m
2026-07-18 N96NH - Jul 18, 12:20 UTCJul 18, 13:15 UTC55m
2026-07-17 N96NH - Jul 17, 18:25 UTCJul 17, 21:15 UTC2h 50m
2026-07-17 N96NH - Jul 17, 14:39 UTCJul 17, 17:35 UTC2h 55m
2026-07-17 N96NH - Jul 17, 11:55 UTCJul 17, 12:04 UTC10m
2026-07-16 N96NH - Jul 16, 17:00 UTCJul 16, 17:14 UTC15m
2026-07-16 N96NH - Jul 16, 16:19 UTCJul 16, 16:25 UTC5m
2026-07-13 N96NH LEB → LEB Jul 13, 11:50 UTCJul 13, 12:05 UTC15m
2026-07-09 N96NH LEB → LEB Jul 9, 11:55 UTCJul 9, 12:20 UTC25m
2026-07-08 N96NH LEB → LEB Jul 8, 14:15 UTCJul 8, 14:25 UTC10m
2026-06-29 N96NH - Jun 29, 17:14 UTCJun 29, 17:30 UTC15m

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 N96NH page for operator, model, and routing details .

Mode-S AD5B01 frequently asked

What is Mode-S code AD5B01?
AD5B01 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N96NH.
Where is Mode-S AD5B01 registered?
Mode-S code AD5B01 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 AD5B01 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD5B01, octal 53255401, decimal 11,361,025.
What flights does AD5B01 operate?
Mode-S AD5B01 has broadcast 1 distinct callsign, including N96NH.