Apparatus

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sensors Mode-S transponder

A63AFA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N500LR · BOMBARDIER CL-600 Challenger · operated by WORLDWIDE JET CHARTER INC

Hex
A63AFA
Octal
51435372
Decimal
10,894,074
Country
US
Tail
N500LR
Type
CL60
No current signal · last broadcast 1h ago
Flights observed
94
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A63AFA.

Country allocation

The ICAO 24-bit address A63AFA 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
WWI50 - 94 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 WWI50 - Jul 14, 10:30 UTCJul 14, 11:30 UTC1h 0m
2026-07-13 WWI50 - Jul 13, 19:10 UTCJul 13, 20:25 UTC1h 15m
2026-07-12 WWI50 - Jul 12, 21:40 UTCJul 12, 22:55 UTC1h 15m
2026-07-11 WWI50 IAD → TEB Jul 11, 20:00 UTCJul 11, 20:45 UTC45m
2026-07-10 WWI50 - Jul 10, 21:40 UTCJul 10, 22:40 UTC1h 0m
2026-07-10 WWI50 - Jul 10, 15:10 UTCJul 10, 16:35 UTC1h 25m
2026-07-10 WWI50 - Jul 10, 01:55 UTCJul 10, 03:20 UTC1h 25m
2026-07-09 WWI50 - Jul 9, 23:15 UTCJul 10, 00:55 UTC1h 40m
2026-07-08 WWI50 BOS → MDW Jul 8, 23:00 UTCJul 9, 01:05 UTC2h 5m
2026-07-07 WWI50 - Jul 7, 23:20 UTCJul 7, 23:55 UTC35m
2026-07-07 WWI50 - Jul 7, 20:20 UTCJul 7, 20:40 UTC20m
2026-07-05 WWI50 - Jul 5, 15:20 UTCJul 5, 19:25 UTC4h 5m
2026-07-05 WWI50 - Jul 5, 12:55 UTCJul 5, 13:50 UTC55m
2026-07-02 WWI50 - Jul 2, 20:45 UTCJul 2, 23:50 UTC3h 5m
2026-07-02 WWI50 - Jul 2, 17:05 UTCJul 2, 20:00 UTC2h 55m
2026-07-02 WWI50 - Jul 2, 13:50 UTCJul 2, 14:35 UTC45m
2026-06-30 WWI50 - Jun 30, 17:20 UTCJun 30, 18:40 UTC1h 20m
2026-06-29 WWI50 - Jun 29, 05:04 UTCJun 29, 08:54 UTC3h 50m
2026-06-29 WWI50 - Jun 29, 02:59 UTCJun 29, 03:20 UTC20m
2026-06-27 WWI50 - Jun 27, 21:15 UTCJun 27, 21:44 UTC30m
2026-06-26 WWI50 - Jun 26, 16:44 UTCJun 26, 21:15 UTC4h 30m
2026-06-26 WWI50 - Jun 26, 11:55 UTCJun 26, 13:49 UTC1h 55m
2026-06-25 WWI50 - Jun 25, 15:40 UTCJun 25, 18:45 UTC3h 5m
2026-06-25 WWI50 - Jun 25, 00:40 UTCJun 25, 02:14 UTC1h 35m
2026-06-22 WWI50 - Jun 22, 02:30 UTCJun 22, 04:49 UTC2h 20m
2026-06-21 WWI50 - Jun 21, 20:09 UTCJun 21, 23:05 UTC2h 55m
2026-06-19 WWI50 - Jun 19, 23:00 UTCJun 19, 23:54 UTC55m
2026-06-19 WWI50 PNE → TEB Jun 19, 03:44 UTCJun 19, 04:10 UTC25m
2026-06-18 WWI50 - Jun 18, 23:30 UTCJun 19, 02:50 UTC3h 19m
2026-06-18 WWI50 - Jun 18, 19:20 UTCJun 18, 20:45 UTC1h 25m
2026-06-17 WWI50 - Jun 17, 23:05 UTCJun 18, 01:45 UTC2h 40m
2026-06-17 WWI50 - Jun 17, 16:40 UTCJun 17, 19:30 UTC2h 50m
2026-06-14 WWI50 - Jun 14, 05:00 UTCJun 14, 08:25 UTC3h 25m
2026-06-13 WWI50 - Jun 13, 18:40 UTCJun 13, 22:20 UTC3h 40m
2026-06-13 WWI50 - Jun 13, 16:30 UTCJun 13, 16:55 UTC25m
2026-06-11 WWI50 - Jun 11, 22:40 UTCJun 11, 23:15 UTC35m
2026-06-11 WWI50 - Jun 11, 21:15 UTCJun 11, 22:00 UTC45m
2026-06-11 WWI50 - Jun 11, 17:55 UTCJun 11, 18:40 UTC45m
2026-06-11 WWI50 - Jun 11, 14:55 UTCJun 11, 15:20 UTC25m
2026-06-10 WWI50 - Jun 10, 18:30 UTCJun 10, 18:55 UTC25m
2026-06-07 WWI50 - Jun 7, 14:15 UTCJun 7, 18:30 UTC4h 15m
2026-06-06 WWI50 ABQ → TUS Jun 6, 18:55 UTCJun 6, 19:54 UTC1h 0m
2026-06-06 WWI50 - Jun 6, 00:30 UTCJun 6, 02:30 UTC2h 0m
2026-06-04 WWI50 SAC → SFO Jun 4, 20:15 UTCJun 4, 20:45 UTC30m
2026-06-04 WWI50 PDX → SAC Jun 4, 01:45 UTCJun 4, 02:50 UTC1h 5m
2026-06-03 WWI50 - Jun 3, 18:10 UTCJun 3, 21:55 UTC3h 45m
2026-06-03 WWI50 - Jun 3, 03:25 UTCJun 3, 03:40 UTC15m
2026-06-02 WWI50 - Jun 2, 23:15 UTCJun 3, 01:55 UTC2h 40m
2026-06-02 WWI50 MSN → STP Jun 2, 20:20 UTCJun 2, 21:10 UTC50m
2026-06-02 WWI50 - Jun 2, 16:20 UTCJun 2, 17:00 UTC40m

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 N500LR page for operator, model, and routing details .

Mode-S A63AFA frequently asked

What is Mode-S code A63AFA?
A63AFA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N500LR.
Where is Mode-S A63AFA registered?
Mode-S code A63AFA 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 A63AFA broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A63AFA, octal 51435372, decimal 10,894,074.
What flights does A63AFA operate?
Mode-S A63AFA has broadcast 1 distinct callsign, including WWI50.