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sensors Mode-S transponder

AD224E

ICAO 24-bit transponder address · allocated to United States

Hex
AD224E
Octal
53221116
Decimal
11,346,510
Country
US
Broadcasting now · callsign N9451T · 1,550 ft
Flights observed
158
Distinct callsigns
1
Country
US
Last broadcast
9m ago

Current position

AD224E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD224E 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
N9451T - 158 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N9451T - Jul 20, 18:35 UTCJul 20, 19:30 UTC55m
2026-07-20 N9451T - Jul 20, 14:05 UTCJul 20, 14:55 UTC50m
2026-07-19 N9451T - Jul 19, 20:45 UTCJul 19, 21:25 UTC40m
2026-07-19 N9451T - Jul 19, 18:45 UTCJul 19, 19:35 UTC50m
2026-07-19 N9451T - Jul 19, 17:05 UTCJul 19, 17:40 UTC35m
2026-07-18 N9451T - Jul 18, 17:20 UTCJul 18, 19:10 UTC1h 50m
2026-07-17 N9451T - Jul 17, 23:00 UTCJul 18, 00:15 UTC1h 15m
2026-07-16 N9451T - Jul 16, 18:40 UTCJul 16, 19:50 UTC1h 10m
2026-07-12 N9451T - Jul 12, 22:35 UTCJul 12, 23:35 UTC1h 0m
2026-07-12 N9451T - Jul 12, 17:50 UTCJul 12, 19:25 UTC1h 35m
2026-07-11 N9451T - Jul 11, 16:25 UTCJul 11, 17:20 UTC55m
2026-07-11 N9451T - Jul 11, 14:30 UTCJul 11, 15:20 UTC50m
2026-07-10 N9451T - Jul 10, 18:35 UTCJul 10, 19:20 UTC45m
2026-07-10 N9451T - Jul 10, 16:50 UTCJul 10, 17:20 UTC30m
2026-07-10 N9451T - Jul 10, 15:15 UTCJul 10, 15:50 UTC35m
2026-07-10 N9451T - Jul 10, 12:40 UTCJul 10, 13:40 UTC1h 0m
2026-07-09 N9451T - Jul 9, 20:30 UTCJul 9, 21:35 UTC1h 5m
2026-07-09 N9451T - Jul 9, 18:50 UTCJul 9, 19:25 UTC35m
2026-07-09 N9451T - Jul 9, 16:45 UTCJul 9, 17:45 UTC1h 0m
2026-07-09 N9451T - Jul 9, 14:40 UTCJul 9, 15:50 UTC1h 10m
2026-07-08 N9451T - Jul 8, 19:25 UTCJul 8, 21:25 UTC2h 0m
2026-07-08 N9451T - Jul 8, 16:35 UTCJul 8, 17:40 UTC1h 5m
2026-07-07 N9451T - Jul 7, 18:20 UTCJul 7, 19:15 UTC55m
2026-07-07 N9451T - Jul 7, 16:25 UTCJul 7, 17:10 UTC45m
2026-07-07 N9451T - Jul 7, 13:35 UTCJul 7, 14:30 UTC55m
2026-07-06 N9451T - Jul 6, 22:45 UTCJul 6, 23:40 UTC55m
2026-07-06 N9451T - Jul 6, 20:50 UTCJul 6, 21:45 UTC55m
2026-07-06 N9451T - Jul 6, 19:10 UTCJul 6, 19:55 UTC45m
2026-07-06 N9451T - Jul 6, 14:45 UTCJul 6, 16:10 UTC1h 25m
2026-07-05 N9451T - Jul 5, 20:05 UTCJul 5, 21:15 UTC1h 10m
2026-07-03 N9451T - Jul 3, 18:40 UTCJul 3, 19:50 UTC1h 10m
2026-07-03 N9451T - Jul 3, 17:05 UTCJul 3, 17:35 UTC30m
2026-07-03 N9451T - Jul 3, 14:55 UTCJul 3, 15:45 UTC50m
2026-07-02 N9451T - Jul 2, 19:05 UTCJul 2, 21:15 UTC2h 10m
2026-07-02 N9451T - Jul 2, 14:40 UTCJul 2, 15:20 UTC40m
2026-07-01 N9451T - Jul 1, 18:30 UTCJul 1, 19:10 UTC40m
2026-06-30 N9451T - Jun 30, 18:35 UTCJun 30, 19:35 UTC1h 0m
2026-06-30 N9451T - Jun 30, 16:30 UTCJun 30, 17:35 UTC1h 5m
2026-06-29 N9451T - Jun 29, 20:35 UTCJun 29, 21:44 UTC1h 10m
2026-06-29 N9451T - Jun 29, 18:44 UTCJun 29, 19:44 UTC1h 0m
2026-06-29 N9451T - Jun 29, 16:59 UTCJun 29, 17:34 UTC35m
2026-06-29 N9451T - Jun 29, 14:44 UTCJun 29, 15:39 UTC55m
2026-06-28 N9451T - Jun 28, 15:05 UTCJun 28, 15:40 UTC35m
2026-06-27 N9451T - Jun 27, 22:35 UTCJun 27, 23:25 UTC50m
2026-06-27 N9451T - Jun 27, 18:24 UTCJun 27, 19:05 UTC40m
2026-06-27 N9451T - Jun 27, 16:39 UTCJun 27, 17:44 UTC1h 5m
2026-06-27 N9451T - Jun 27, 14:35 UTCJun 27, 15:34 UTC1h 0m
2026-06-26 N9451T - Jun 26, 22:49 UTCJun 26, 23:30 UTC40m
2026-06-26 N9451T - Jun 26, 20:44 UTCJun 26, 21:35 UTC50m
2026-06-26 N9451T - Jun 26, 18:29 UTCJun 26, 19:24 UTC55m

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.

Mode-S AD224E frequently asked

What is Mode-S code AD224E?
AD224E is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S AD224E registered?
Mode-S code AD224E 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 AD224E broadcasting right now?
Yes. Mode-S AD224E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD224E, octal 53221116, decimal 11,346,510.
What flights does AD224E operate?
Mode-S AD224E has broadcast 1 distinct callsign, including N9451T.