sensors Mode-S transponder

A4EE3B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N417BA · LEARJET 35 · operated by ROYAL AIR FREIGHT INC

Hex
A4EE3B
Octal
51167073
Decimal
10,808,891
Country
US
Tail
N417BA
Type
LJ35
No current signal · last broadcast 23h ago
Flights observed
41
Distinct callsigns
6
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A4EE3B.

Country allocation

The ICAO 24-bit address A4EE3B 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 6 distinct

Callsign Airline Flights Last seen
RAX220 - 16 2026-07-17
RAX1073 - 11 2026-07-15
RAX716 - 7 2026-06-19
RAX123 - 4 2026-07-02
RAX777 - 2 2026-06-03
RAX101 - 1 2026-06-11

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
2026-07-17 RAX220 - Jul 17, 05:50 UTCJul 17, 13:00 UTC7h 10m
2026-07-17 RAX220 - Jul 17, 02:59 UTCJul 17, 04:59 UTC2h 0m
2026-07-16 RAX220 - Jul 16, 13:05 UTCJul 16, 13:34 UTC30m
2026-07-16 RAX220 - Jul 16, 07:50 UTCJul 16, 11:15 UTC3h 25m
2026-07-16 RAX220 - Jul 16, 04:10 UTCJul 16, 05:25 UTC1h 15m
2026-07-15 RAX1073 - Jul 15, 08:55 UTCJul 15, 10:20 UTC1h 25m
2026-07-15 RAX1073 - Jul 15, 04:10 UTCJul 15, 08:25 UTC4h 15m
2026-07-15 RAX1073 - Jul 15, 02:55 UTCJul 15, 03:25 UTC30m
2026-07-14 RAX1073 - Jul 14, 06:15 UTCJul 14, 09:50 UTC3h 35m
2026-07-14 RAX1073 - Jul 14, 04:50 UTCJul 14, 05:30 UTC40m
2026-07-10 RAX1073 - Jul 10, 17:30 UTCJul 10, 18:35 UTC1h 5m
2026-07-10 RAX1073 - Jul 10, 13:55 UTCJul 10, 16:55 UTC3h 0m
2026-07-10 RAX1073 LRD → BUR Jul 10, 10:25 UTCJul 10, 13:05 UTC2h 40m
2026-07-09 RAX1073 - Jul 9, 01:50 UTCJul 9, 04:00 UTC2h 10m
2026-07-08 RAX1073 - Jul 8, 23:55 UTCJul 9, 00:20 UTC25m
2026-07-08 RAX1073 - Jul 8, 04:10 UTCJul 8, 08:15 UTC4h 5m
2026-07-02 RAX123 - Jul 2, 01:40 UTCJul 2, 05:00 UTC3h 20m
2026-07-01 RAX123 - Jul 1, 21:55 UTCJul 2, 00:00 UTC2h 5m
2026-06-30 RAX123 - Jun 30, 18:20 UTCJun 30, 21:20 UTC3h 0m
2026-06-30 RAX123 - Jun 30, 14:00 UTCJun 30, 17:45 UTC3h 45m
2026-06-25 RAX220 - Jun 25, 22:45 UTCJun 26, 01:20 UTC2h 35m
2026-06-24 RAX220 - Jun 24, 21:04 UTCJun 24, 23:04 UTC2h 0m
2026-06-24 RAX220 - Jun 24, 18:15 UTCJun 24, 20:24 UTC2h 10m
2026-06-24 RAX220 - Jun 24, 02:24 UTCJun 24, 04:24 UTC2h 0m
2026-06-23 RAX220 LRD → BMI Jun 23, 23:19 UTCJun 24, 01:34 UTC2h 15m
2026-06-22 RAX220 - Jun 22, 19:54 UTCJun 22, 22:44 UTC2h 50m
2026-06-22 RAX220 - Jun 22, 18:15 UTCJun 22, 18:54 UTC40m
2026-06-19 RAX716 - Jun 19, 00:45 UTCJun 19, 03:34 UTC2h 50m
2026-06-18 RAX716 - Jun 18, 22:45 UTCJun 18, 23:15 UTC30m
2026-06-18 RAX716 - Jun 18, 18:05 UTCJun 18, 22:10 UTC4h 5m
2026-06-17 RAX716 - Jun 17, 01:20 UTCJun 17, 02:55 UTC1h 35m
2026-06-17 RAX716 - Jun 17, 00:10 UTCJun 17, 00:45 UTC35m
2026-06-16 RAX716 - Jun 16, 22:55 UTCJun 16, 23:30 UTC35m
2026-06-16 RAX716 - Jun 16, 21:40 UTCJun 16, 22:30 UTC50m
2026-06-12 RAX220 - Jun 12, 07:55 UTCJun 12, 11:30 UTC3h 35m
2026-06-12 RAX220 - Jun 12, 04:35 UTCJun 12, 07:00 UTC2h 25m
2026-06-12 RAX220 - Jun 12, 00:40 UTCJun 12, 03:40 UTC3h 0m
2026-06-11 RAX220 - Jun 11, 22:00 UTCJun 11, 23:50 UTC1h 50m
2026-06-11 RAX101 - Jun 11, 17:50 UTCJun 11, 18:20 UTC30m
2026-06-03 RAX777 - Jun 3, 19:30 UTCJun 3, 19:50 UTC20m
2026-05-29 RAX777 - May 29, 20:05 UTCMay 29, 20:30 UTC25m

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 N417BA page for operator, model, and routing details .

Mode-S A4EE3B frequently asked

What is Mode-S code A4EE3B?
A4EE3B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N417BA.
Where is Mode-S A4EE3B registered?
Mode-S code A4EE3B 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 A4EE3B broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4EE3B, octal 51167073, decimal 10,808,891.
What flights does A4EE3B operate?
Mode-S A4EE3B has broadcast 6 distinct callsigns, including RAX220, RAX1073, RAX716, RAX123, RAX777.