Apparatus

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sensors Mode-S transponder

A4CC98

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N408Z · operated by ALPHA TANGO AIRCRAFT LLC

Hex
A4CC98
Octal
51146230
Decimal
10,800,280
Country
US
Tail
N408Z
Type
P28A
No current signal · last broadcast 3h ago
Flights observed
150
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A4CC98.

Country allocation

The ICAO 24-bit address A4CC98 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
CXK660 - 150 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CXK660 - Jul 14, 15:15 UTCJul 14, 16:45 UTC1h 30m
2026-07-14 CXK660 - Jul 14, 11:10 UTCJul 14, 13:15 UTC2h 5m
2026-07-14 CXK660 - Jul 14, 08:40 UTCJul 14, 10:10 UTC1h 30m
2026-07-13 CXK660 OWD → OWD Jul 13, 18:35 UTCJul 13, 19:20 UTC45m
2026-07-13 CXK660 - Jul 13, 14:55 UTCJul 13, 16:35 UTC1h 40m
2026-07-12 CXK660 - Jul 12, 10:35 UTCJul 12, 12:01 UTC1h 25m
2026-07-08 CXK660 OWD → OWD Jul 8, 12:15 UTCJul 8, 13:45 UTC1h 30m
2026-07-07 CXK660 - Jul 7, 10:05 UTCJul 7, 12:10 UTC2h 5m
2026-07-06 CXK660 OWD → OWD Jul 6, 16:55 UTCJul 6, 17:45 UTC50m
2026-07-04 CXK660 OWD → OWD Jul 4, 13:05 UTCJul 4, 14:50 UTC1h 45m
2026-07-04 CXK660 OWD → OWD Jul 4, 12:05 UTCJul 4, 12:25 UTC20m
2026-07-04 CXK660 - Jul 4, 11:10 UTCJul 4, 11:35 UTC25m
2026-07-01 CXK660 OWD → OWD Jul 1, 12:20 UTCJul 1, 14:15 UTC1h 55m
2026-06-30 CXK660 OWD → OWD Jun 30, 14:35 UTCJun 30, 16:10 UTC1h 35m
2026-06-30 CXK660 - Jun 30, 12:05 UTCJun 30, 13:40 UTC1h 35m
2026-06-29 CXK660 OWD → OWD Jun 29, 20:00 UTCJun 29, 21:19 UTC1h 20m
2026-06-29 CXK660 - Jun 29, 13:34 UTCJun 29, 15:04 UTC1h 30m
2026-06-29 CXK660 OWD → OWD Jun 29, 10:50 UTCJun 29, 12:29 UTC1h 40m
2026-06-28 CXK660 - Jun 28, 14:30 UTCJun 28, 16:05 UTC1h 35m
2026-06-27 CXK660 - Jun 27, 18:04 UTCJun 27, 19:29 UTC1h 25m
2026-06-27 CXK660 - Jun 27, 15:39 UTCJun 27, 16:20 UTC40m
2026-06-26 CXK660 OWD → OWD Jun 26, 15:45 UTCJun 26, 16:00 UTC15m
2026-06-25 CXK660 - Jun 25, 01:40 UTCJun 25, 03:20 UTC1h 40m
2026-06-24 CXK660 - Jun 24, 22:19 UTCJun 25, 00:05 UTC1h 45m
2026-06-22 CXK660 - Jun 22, 01:19 UTCJun 22, 03:24 UTC2h 5m
2026-06-20 CXK660 - Jun 20, 12:30 UTCJun 20, 13:55 UTC1h 25m
2026-06-18 CXK660 - Jun 18, 01:15 UTCJun 18, 03:25 UTC2h 10m
2026-06-16 CXK660 - Jun 16, 17:35 UTCJun 16, 18:09 UTC35m
2026-06-16 CXK660 - Jun 16, 14:25 UTCJun 16, 16:10 UTC1h 45m
2026-06-15 CXK660 - Jun 15, 18:29 UTCJun 15, 19:00 UTC30m
2026-06-14 CXK660 MNZ → OWD Jun 14, 12:10 UTCJun 14, 15:20 UTC3h 10m
2026-06-13 CXK660 MNZ → MNZ Jun 13, 17:35 UTCJun 13, 18:25 UTC50m
2026-06-13 CXK660 - Jun 13, 14:00 UTCJun 13, 16:05 UTC2h 5m
2026-06-13 CXK660 MNZ → MNZ Jun 13, 13:00 UTCJun 13, 13:20 UTC20m
2026-06-12 CXK660 - Jun 12, 16:40 UTCJun 12, 18:30 UTC1h 50m
2026-06-12 CXK660 - Jun 12, 13:15 UTCJun 12, 15:30 UTC2h 15m
2026-06-11 CXK660 - Jun 11, 19:45 UTCJun 11, 21:35 UTC1h 50m
2026-06-11 CXK660 - Jun 11, 17:05 UTCJun 11, 18:25 UTC1h 20m
2026-06-10 CXK660 MNZ → MNZ Jun 10, 20:45 UTCJun 10, 22:10 UTC1h 25m
2026-06-10 CXK660 MNZ → MNZ Jun 10, 00:15 UTCJun 10, 00:55 UTC40m
2026-06-09 CXK660 - Jun 9, 21:50 UTCJun 9, 23:20 UTC1h 30m
2026-06-09 CXK660 - Jun 9, 20:40 UTCJun 9, 21:15 UTC35m
2026-06-09 CXK660 - Jun 9, 18:55 UTCJun 9, 19:15 UTC20m
2026-06-09 CXK660 MNZ → MNZ Jun 9, 14:15 UTCJun 9, 15:50 UTC1h 35m
2026-06-09 CXK660 MNZ → MNZ Jun 9, 11:55 UTCJun 9, 13:05 UTC1h 10m
2026-06-03 CXK660 - Jun 3, 17:35 UTCJun 3, 18:50 UTC1h 15m
2026-06-02 CXK660 - Jun 2, 20:05 UTCJun 2, 22:05 UTC2h 0m
2026-06-02 CXK660 - Jun 2, 16:20 UTCJun 2, 17:55 UTC1h 35m
2026-06-02 CXK660 - Jun 2, 13:00 UTCJun 2, 13:45 UTC45m
2026-06-01 CXK660 - Jun 1, 23:25 UTCJun 2, 00:55 UTC1h 30m

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 N408Z page for operator, model, and routing details .

Mode-S A4CC98 frequently asked

What is Mode-S code A4CC98?
A4CC98 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N408Z.
Where is Mode-S A4CC98 registered?
Mode-S code A4CC98 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 A4CC98 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4CC98, octal 51146230, decimal 10,800,280.
What flights does A4CC98 operate?
Mode-S A4CC98 has broadcast 1 distinct callsign, including CXK660.