Apparatus

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sensors Mode-S transponder

A8B516

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N660JW · CESSNA 172 Skyhawk · operated by LEARNING 2 FLY LLC

Hex
A8B516
Octal
52132426
Decimal
11,056,406
Country
US
Tail
N660JW
Type
C172
No current signal · last broadcast 17h ago
Flights observed
238
Distinct callsigns
1
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S A8B516.

Country allocation

The ICAO 24-bit address A8B516 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
N660JW - 238 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N660JW GYR → GYR Jul 13, 16:25 UTCJul 13, 17:30 UTC1h 5m
2026-07-13 N660JW GYR → GYR Jul 13, 14:35 UTCJul 13, 15:25 UTC50m
2026-07-13 N660JW - Jul 13, 11:50 UTCJul 13, 12:35 UTC45m
2026-07-13 N660JW GYR → GYR Jul 13, 01:40 UTCJul 13, 02:15 UTC35m
2026-07-12 N660JW - Jul 12, 15:35 UTCJul 12, 16:15 UTC40m
2026-07-12 N660JW - Jul 12, 13:20 UTCJul 12, 15:01 UTC1h 40m
2026-07-11 N660JW GYR → GYR Jul 11, 17:40 UTCJul 11, 18:35 UTC55m
2026-07-11 N660JW GYR → GYR Jul 11, 15:45 UTCJul 11, 16:35 UTC50m
2026-07-11 N660JW GYR → GYR Jul 11, 13:40 UTCJul 11, 14:45 UTC1h 5m
2026-07-10 N660JW - Jul 10, 18:40 UTCJul 10, 19:30 UTC50m
2026-07-10 N660JW GYR → GYR Jul 10, 16:55 UTCJul 10, 17:50 UTC55m
2026-07-10 N660JW GYR → GYR Jul 10, 15:05 UTCJul 10, 15:55 UTC50m
2026-07-10 N660JW GYR → GYR Jul 10, 12:35 UTCJul 10, 13:45 UTC1h 10m
2026-07-10 N660JW GYR → GYR Jul 10, 03:10 UTCJul 10, 05:20 UTC2h 10m
2026-07-09 N660JW GYR → GYR Jul 9, 16:40 UTCJul 9, 17:55 UTC1h 15m
2026-07-09 N660JW GYR → GYR Jul 9, 12:30 UTCJul 9, 13:50 UTC1h 20m
2026-07-09 N660JW GYR → GYR Jul 9, 00:35 UTCJul 9, 02:45 UTC2h 10m
2026-07-08 N660JW GYR → GYR Jul 8, 21:30 UTCJul 8, 22:00 UTC30m
2026-07-08 N660JW GYR → GYR Jul 8, 16:40 UTCJul 8, 18:10 UTC1h 30m
2026-07-08 N660JW GYR → GYR Jul 8, 14:30 UTCJul 8, 15:35 UTC1h 5m
2026-07-08 N660JW GYR → GYR Jul 8, 12:40 UTCJul 8, 13:35 UTC55m
2026-07-07 N660JW GYR → GYR Jul 7, 16:50 UTCJul 7, 18:00 UTC1h 10m
2026-07-07 N660JW GYR → GYR Jul 7, 14:45 UTCJul 7, 15:45 UTC1h 0m
2026-07-07 N660JW GYR → GYR Jul 7, 12:50 UTCJul 7, 13:40 UTC50m
2026-07-06 N660JW - Jul 6, 17:30 UTCJul 6, 18:25 UTC55m
2026-07-06 N660JW - Jul 6, 15:20 UTCJul 6, 16:15 UTC55m
2026-07-05 N660JW GYR → GYR Jul 5, 13:20 UTCJul 5, 14:45 UTC1h 25m
2026-07-05 N660JW VGT → GYR Jul 5, 08:10 UTCJul 5, 10:50 UTC2h 40m
2026-07-05 N660JW GYR → VGT Jul 5, 03:40 UTCJul 5, 06:25 UTC2h 45m
2026-07-04 N660JW HII → GYR Jul 4, 14:40 UTCJul 4, 16:20 UTC1h 40m
2026-07-04 N660JW GYR → HII Jul 4, 13:15 UTCJul 4, 14:35 UTC1h 20m
2026-07-03 N660JW - Jul 3, 17:40 UTCJul 3, 17:55 UTC15m
2026-07-02 N660JW GYR → BXK Jul 2, 19:00 UTCJul 2, 19:15 UTC15m
2026-07-02 N660JW - Jul 2, 16:00 UTCJul 2, 16:35 UTC35m
2026-07-02 N660JW - Jul 2, 10:00 UTCJul 2, 10:35 UTC35m
2026-07-01 N660JW GYR → GYR Jul 1, 18:50 UTCJul 1, 21:15 UTC2h 25m
2026-07-01 N660JW - Jul 1, 14:10 UTCJul 1, 14:50 UTC40m
2026-07-01 N660JW - Jul 1, 08:30 UTCJul 1, 09:05 UTC35m
2026-06-30 N660JW - Jun 30, 14:25 UTCJun 30, 15:05 UTC40m
2026-06-30 N660JW - Jun 30, 06:50 UTCJun 30, 07:25 UTC35m
2026-06-28 N660JW - Jun 28, 18:55 UTCJun 28, 19:49 UTC55m
2026-06-28 N660JW - Jun 28, 13:55 UTCJun 28, 14:34 UTC40m
2026-06-28 N660JW MYF → GYR Jun 28, 00:20 UTCJun 28, 02:25 UTC2h 5m
2026-06-27 N660JW - Jun 27, 18:45 UTCJun 27, 19:15 UTC30m
2026-06-27 N660JW - Jun 27, 16:14 UTCJun 27, 17:04 UTC50m
2026-06-27 N660JW GYR → GYR Jun 27, 12:19 UTCJun 27, 12:34 UTC15m
2026-06-24 N660JW HII → GYR Jun 24, 16:45 UTCJun 24, 18:29 UTC1h 45m
2026-06-24 N660JW GYR → HII Jun 24, 14:24 UTCJun 24, 15:49 UTC1h 25m
2026-06-23 N660JW - Jun 23, 15:40 UTCJun 23, 16:20 UTC40m
2026-06-23 N660JW - Jun 23, 13:34 UTCJun 23, 14:15 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 N660JW page for operator, model, and routing details .

Mode-S A8B516 frequently asked

What is Mode-S code A8B516?
A8B516 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N660JW.
Where is Mode-S A8B516 registered?
Mode-S code A8B516 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 A8B516 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8B516, octal 52132426, decimal 11,056,406.
What flights does A8B516 operate?
Mode-S A8B516 has broadcast 1 distinct callsign, including N660JW.