Apparatus

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sensors Mode-S transponder

A60DC3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N49AD · AIRBUS HELICOPTERS EC-120 · operated by ALTAIR ADVANCED INDUSTRIES INC

Hex
A60DC3
Octal
51406703
Decimal
10,882,499
Country
US
Tail
N49AD
Type
EC20
No current signal · last broadcast 3d ago
Flights observed
24
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A60DC3.

Country allocation

The ICAO 24-bit address A60DC3 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
N49AD - 24 2026-07-04

Recent flights last 24

DateFlightRouteTakeoffLandingDuration
2026-07-04 N49AD - Jul 4, 23:40 UTCJul 4, 23:55 UTC15m
2026-07-04 N49AD - Jul 4, 17:50 UTCJul 4, 18:05 UTC15m
2026-07-01 N49AD - Jul 1, 01:15 UTCJul 1, 01:25 UTC10m
2026-06-30 N49AD - Jun 30, 23:30 UTCJun 30, 23:45 UTC15m
2026-06-28 N49AD ESD → BLI Jun 28, 03:00 UTCJun 28, 03:14 UTC15m
2026-06-28 N49AD - Jun 28, 00:59 UTCJun 28, 01:15 UTC15m
2026-06-21 N49AD - Jun 21, 02:30 UTCJun 21, 02:45 UTC15m
2026-06-20 N49AD - Jun 20, 23:19 UTCJun 20, 23:29 UTC10m
2026-06-10 N49AD - Jun 10, 21:20 UTCJun 10, 21:40 UTC20m
2026-06-10 N49AD - Jun 10, 19:35 UTCJun 10, 19:50 UTC15m
2026-06-08 N49AD - Jun 8, 01:40 UTCJun 8, 02:15 UTC35m
2026-06-07 N49AD - Jun 7, 21:15 UTCJun 7, 21:30 UTC15m
2026-06-04 N49AD - Jun 4, 21:25 UTCJun 4, 21:40 UTC15m
2026-06-04 N49AD - Jun 4, 19:45 UTCJun 4, 19:55 UTC10m
2026-05-30 N49AD - May 30, 22:35 UTCMay 30, 23:00 UTC25m
2026-05-30 N49AD - May 30, 18:20 UTCMay 30, 18:35 UTC15m
2026-05-27 N49AD - May 27, 20:10 UTCMay 27, 20:25 UTC15m
2026-05-27 N49AD YDT → YDT May 27, 17:35 UTCMay 27, 17:45 UTC10m
2026-05-26 N49AD - May 26, 18:55 UTCMay 26, 19:45 UTC50m
2026-05-12 N49AD - May 12, 20:40 UTCMay 12, 21:01 UTC20m
2026-05-12 N49AD CKR → BLI May 12, 18:05 UTCMay 12, 18:20 UTC15m
2026-05-12 N49AD - May 12, 17:15 UTCMay 12, 17:35 UTC20m
2026-04-18 N49AD - Apr 18, 20:25 UTCApr 18, 21:15 UTC50m
2026-04-18 N49AD - Apr 18, 18:15 UTCApr 18, 18:25 UTC10m

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 N49AD page for operator, model, and routing details .

Mode-S A60DC3 frequently asked

What is Mode-S code A60DC3?
A60DC3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N49AD.
Where is Mode-S A60DC3 registered?
Mode-S code A60DC3 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 A60DC3 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A60DC3, octal 51406703, decimal 10,882,499.
What flights does A60DC3 operate?
Mode-S A60DC3 has broadcast 1 distinct callsign, including N49AD.