Apparatus

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sensors Mode-S transponder

A8B5B2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N660RB · EMBRAER EMB-505 Phenom 300 · operated by NICHOLAS SERVICES LLC

Hex
A8B5B2
Octal
52132662
Decimal
11,056,562
Country
US
Tail
N660RB
Type
E55P
No current signal · last broadcast 23d ago
Flights observed
141
Distinct callsigns
1
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S A8B5B2.

Country allocation

The ICAO 24-bit address A8B5B2 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
JTZ433 - 141 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JTZ433 - Jul 26, 19:15 UTCJul 26, 22:30 UTC3h 15m
2026-07-26 JTZ433 - Jul 26, 16:55 UTCJul 26, 17:55 UTC1h 0m
2026-07-26 JTZ433 - Jul 26, 14:15 UTCJul 26, 15:10 UTC55m
2026-07-25 JTZ433 NEW → TEB Jul 25, 16:00 UTCJul 25, 18:45 UTC2h 45m
2026-07-25 JTZ433 ADS → NEW Jul 25, 13:35 UTCJul 25, 14:45 UTC1h 10m
2026-07-24 JTZ433 - Jul 24, 20:40 UTCJul 24, 22:20 UTC1h 40m
2026-07-24 JTZ433 - Jul 24, 18:50 UTCJul 24, 19:15 UTC25m
2026-07-24 JTZ433 - Jul 24, 17:15 UTCJul 24, 17:55 UTC40m
2026-07-24 JTZ433 - Jul 24, 14:00 UTCJul 24, 15:35 UTC1h 35m
2026-07-23 JTZ433 - Jul 23, 14:25 UTCJul 23, 16:00 UTC1h 35m
2026-07-23 JTZ433 - Jul 23, 11:20 UTCJul 23, 13:20 UTC2h 0m
2026-07-22 JTZ433 - Jul 22, 18:35 UTCJul 22, 20:10 UTC1h 35m
2026-07-22 JTZ433 - Jul 22, 16:20 UTCJul 22, 16:55 UTC35m
2026-07-22 JTZ433 - Jul 22, 11:45 UTCJul 22, 12:50 UTC1h 5m
2026-07-21 JTZ433 - Jul 21, 20:30 UTCJul 21, 22:55 UTC2h 25m
2026-07-21 JTZ433 - Jul 21, 16:10 UTCJul 21, 17:05 UTC55m
2026-07-21 JTZ433 - Jul 21, 12:00 UTCJul 21, 12:45 UTC45m
2026-07-20 JTZ433 - Jul 20, 13:50 UTCJul 20, 14:00 UTC10m
2026-07-20 JTZ433 - Jul 20, 12:25 UTCJul 20, 13:10 UTC45m
2026-07-20 JTZ433 - Jul 20, 10:25 UTCJul 20, 11:15 UTC50m
2026-07-19 JTZ433 - Jul 19, 19:15 UTCJul 19, 20:15 UTC1h 0m
2026-07-19 JTZ433 - Jul 19, 15:45 UTCJul 19, 16:30 UTC45m
2026-07-19 JTZ433 - Jul 19, 14:15 UTCJul 19, 15:05 UTC50m
2026-07-18 JTZ433 - Jul 18, 20:55 UTCJul 18, 21:10 UTC15m
2026-07-18 JTZ433 - Jul 18, 19:20 UTCJul 18, 20:20 UTC1h 0m
2026-07-18 JTZ433 - Jul 18, 17:50 UTCJul 18, 18:35 UTC45m
2026-07-18 JTZ433 - Jul 18, 15:50 UTCJul 18, 16:35 UTC45m
2026-07-18 JTZ433 - Jul 18, 13:20 UTCJul 18, 14:55 UTC1h 35m
2026-07-17 JTZ433 PUB → DFW Jul 17, 23:25 UTCJul 18, 00:50 UTC1h 25m
2026-07-17 JTZ433 - Jul 17, 22:15 UTCJul 17, 22:49 UTC35m
2026-07-17 JTZ433 - Jul 17, 18:25 UTCJul 17, 20:04 UTC1h 40m
2026-07-17 JTZ433 - Jul 17, 15:20 UTCJul 17, 16:34 UTC1h 15m
2026-07-16 JTZ433 - Jul 16, 23:15 UTCJul 17, 00:30 UTC1h 15m
2026-07-16 JTZ433 - Jul 16, 20:00 UTCJul 16, 22:30 UTC2h 30m
2026-07-16 JTZ433 - Jul 16, 17:05 UTCJul 16, 17:45 UTC40m
2026-07-15 JTZ433 - Jul 15, 13:30 UTCJul 15, 16:25 UTC2h 55m
2026-07-14 JTZ433 - Jul 14, 20:25 UTCJul 14, 21:00 UTC35m
2026-07-14 JTZ433 - Jul 14, 17:50 UTCJul 14, 18:45 UTC55m
2026-07-13 JTZ433 - Jul 13, 16:35 UTCJul 13, 17:30 UTC55m
2026-07-13 JTZ433 - Jul 13, 13:50 UTCJul 13, 14:00 UTC10m
2026-07-12 JTZ433 - Jul 12, 15:10 UTCJul 12, 16:01 UTC50m
2026-07-12 JTZ433 - Jul 12, 12:20 UTCJul 12, 13:01 UTC40m
2026-07-11 JTZ433 - Jul 11, 17:15 UTCJul 11, 19:05 UTC1h 50m
2026-07-11 JTZ433 - Jul 11, 15:40 UTCJul 11, 16:25 UTC45m
2026-07-10 JTZ433 - Jul 10, 20:00 UTCJul 10, 21:50 UTC1h 50m
2026-07-10 JTZ433 - Jul 10, 17:30 UTCJul 10, 19:15 UTC1h 45m
2026-07-10 JTZ433 - Jul 10, 16:00 UTCJul 10, 16:25 UTC25m
2026-07-10 JTZ433 NEW → APA Jul 10, 11:40 UTCJul 10, 14:15 UTC2h 35m
2026-07-09 JTZ433 - Jul 9, 21:20 UTCJul 9, 22:15 UTC55m
2026-07-09 JTZ433 - Jul 9, 13:15 UTCJul 9, 14:10 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.

Prefer a tail-number view? See the N660RB page for operator, model, and routing details .

Mode-S A8B5B2 frequently asked

What is Mode-S code A8B5B2?
A8B5B2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N660RB.
Where is Mode-S A8B5B2 registered?
Mode-S code A8B5B2 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 A8B5B2 broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8B5B2, octal 52132662, decimal 11,056,562.
What flights does A8B5B2 operate?
Mode-S A8B5B2 has broadcast 1 distinct callsign, including JTZ433.