Apparatus

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sensors Mode-S transponder

A18DD3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2FE · BOMBARDIER BD-700 Global 6000/6500 · operated by FEDERAL EXPRESS LEASING CORP

Hex
A18DD3
Octal
50306723
Decimal
10,587,603
Country
US
Tail
N2FE
Type
GLEX
No current signal · last broadcast 6d ago
Flights observed
52
Distinct callsigns
1
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S A18DD3.

Country allocation

The ICAO 24-bit address A18DD3 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
N2FE - 52 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 N2FE - Jul 22, 13:00 UTCJul 22, 16:45 UTC3h 45m
2026-07-16 N2FE IAD → AMS Jul 16, 13:45 UTCJul 16, 20:45 UTC7h 0m
2026-07-16 N2FE - Jul 16, 11:15 UTCJul 16, 12:49 UTC1h 35m
2026-07-09 N2FE - Jul 9, 14:35 UTCJul 9, 16:20 UTC1h 45m
2026-07-08 N2FE - Jul 8, 16:25 UTCJul 8, 18:45 UTC2h 20m
2026-07-07 N2FE - Jul 7, 21:15 UTCJul 7, 22:45 UTC1h 30m
2026-07-07 N2FE ORD → IND Jul 7, 16:20 UTCJul 7, 16:55 UTC35m
2026-07-06 N2FE - Jul 6, 19:15 UTCJul 6, 22:35 UTC3h 20m
2026-07-05 N2FE - Jul 5, 22:00 UTCJul 6, 01:10 UTC3h 10m
2026-06-25 N2FE - Jun 25, 22:20 UTCJun 25, 23:55 UTC1h 35m
2026-06-25 N2FE - Jun 25, 20:14 UTCJun 25, 21:35 UTC1h 20m
2026-06-23 N2FE - Jun 23, 11:10 UTCJun 23, 12:35 UTC1h 25m
2026-06-22 N2FE - Jun 22, 19:54 UTCJun 22, 21:14 UTC1h 20m
2026-06-22 N2FE - Jun 22, 14:45 UTCJun 22, 15:35 UTC50m
2026-06-22 N2FE - Jun 22, 12:25 UTCJun 22, 13:29 UTC1h 5m
2026-06-18 N2FE - Jun 18, 16:00 UTCJun 18, 17:10 UTC1h 10m
2026-06-18 N2FE - Jun 18, 14:20 UTCJun 18, 15:10 UTC50m
2026-06-18 N2FE - Jun 18, 12:20 UTCJun 18, 13:20 UTC1h 0m
2026-06-17 N2FE - Jun 17, 17:20 UTCJun 17, 18:20 UTC1h 0m
2026-06-17 N2FE - Jun 17, 15:20 UTCJun 17, 16:35 UTC1h 15m
2026-06-16 N2FE - Jun 16, 13:44 UTCJun 16, 14:50 UTC1h 5m
2026-06-16 N2FE NEW → AUS Jun 16, 11:40 UTCJun 16, 12:50 UTC1h 10m
2026-06-15 N2FE - Jun 15, 17:15 UTCJun 15, 18:10 UTC55m
2026-06-13 N2FE - Jun 13, 01:15 UTCJun 13, 02:55 UTC1h 40m
2026-06-12 N2FE - Jun 12, 14:55 UTCJun 12, 21:00 UTC6h 5m
2026-06-12 N2FE - Jun 12, 07:45 UTCJun 12, 14:01 UTC6h 15m
2026-06-12 N2FE - Jun 12, 00:45 UTCJun 12, 06:40 UTC5h 55m
2026-06-06 N2FE - Jun 6, 17:40 UTCJun 6, 23:09 UTC5h 30m
2026-06-06 N2FE - Jun 6, 09:19 UTCJun 6, 16:39 UTC7h 20m
2026-06-06 N2FE - Jun 6, 02:10 UTCJun 6, 08:40 UTC6h 30m
2026-06-05 N2FE - Jun 5, 22:00 UTCJun 5, 23:50 UTC1h 50m
2026-06-03 N2FE - Jun 3, 01:40 UTCJun 3, 03:15 UTC1h 35m
2026-06-02 N2FE - Jun 2, 22:40 UTCJun 3, 00:15 UTC1h 35m
2026-05-21 N2FE - May 21, 22:05 UTCMay 21, 22:35 UTC30m
2026-05-21 N2FE - May 21, 19:40 UTCMay 21, 20:05 UTC25m
2026-05-21 N2FE - May 21, 17:15 UTCMay 21, 18:55 UTC1h 40m
2026-05-21 N2FE - May 21, 13:15 UTCMay 21, 14:55 UTC1h 40m
2026-05-21 N2FE - May 21, 11:55 UTCMay 21, 12:20 UTC25m
2026-05-17 N2FE - May 17, 22:30 UTCMay 18, 00:05 UTC1h 35m
2026-05-17 N2FE - May 17, 20:05 UTCMay 17, 21:35 UTC1h 30m
2026-05-16 N2FE - May 16, 17:10 UTCMay 16, 18:00 UTC50m
2026-05-15 N2FE - May 15, 20:55 UTCMay 15, 22:20 UTC1h 25m
2026-05-14 N2FE - May 14, 11:50 UTCMay 14, 19:05 UTC7h 15m
2026-05-12 N2FE - May 12, 06:00 UTCMay 12, 07:15 UTC1h 15m
2026-05-11 N2FE - May 11, 20:35 UTCMay 11, 21:21 UTC45m
2026-05-06 N2FE - May 6, 22:10 UTCMay 6, 22:35 UTC25m
2026-05-06 N2FE - May 6, 12:01 UTCMay 6, 12:20 UTC20m
2026-05-05 N2FE - May 5, 11:10 UTCMay 5, 12:40 UTC1h 30m
2026-05-04 N2FE - May 4, 20:00 UTCMay 4, 21:20 UTC1h 20m
2026-04-30 N2FE - Apr 30, 14:55 UTCApr 30, 17:40 UTC2h 45m

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 N2FE page for operator, model, and routing details .

Mode-S A18DD3 frequently asked

What is Mode-S code A18DD3?
A18DD3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2FE.
Where is Mode-S A18DD3 registered?
Mode-S code A18DD3 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 A18DD3 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A18DD3, octal 50306723, decimal 10,587,603.
What flights does A18DD3 operate?
Mode-S A18DD3 has broadcast 1 distinct callsign, including N2FE.