sensors Mode-S transponder

A8E3DC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N672HG · operated by ROBERT KELLY

Hex
A8E3DC
Octal
52161734
Decimal
11,068,380
Country
US
Tail
N672HG
No current signal · last broadcast 8h ago
Flights observed
20
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A8E3DC.

Country allocation

The ICAO 24-bit address A8E3DC 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
N672HG - 20 2026-05-29

Recent flights last 20

DateFlightRouteTakeoffLandingDuration
2026-05-29 N672HG - May 29, 22:35 UTCMay 30, 00:10 UTC1h 35m
2026-05-19 N672HG - May 19, 21:55 UTCMay 20, 00:50 UTC2h 55m
2026-05-18 N672HG - May 18, 22:05 UTCMay 19, 00:40 UTC2h 35m
2026-05-14 N672HG - May 14, 23:40 UTCMay 15, 02:40 UTC3h 0m
2026-05-14 N672HG - May 14, 21:25 UTCMay 14, 23:00 UTC1h 35m
2026-05-14 N672HG - May 14, 18:00 UTCMay 14, 21:05 UTC3h 5m
2026-05-13 N672HG - May 13, 13:40 UTCMay 13, 14:25 UTC45m
2026-05-13 N672HG - May 13, 11:40 UTCMay 13, 12:20 UTC40m
2026-05-12 N672HG - May 12, 20:35 UTCMay 12, 23:45 UTC3h 10m
2026-05-12 N672HG - May 12, 15:50 UTCMay 12, 19:10 UTC3h 20m
2026-05-07 N672HG HAR → DAL May 7, 21:40 UTCMay 8, 00:29 UTC2h 50m
2026-05-07 N672HG - May 7, 14:00 UTCMay 7, 20:55 UTC6h 55m
2026-05-04 N672HG - May 4, 11:05 UTCMay 4, 19:00 UTC7h 56m
2026-05-03 N672HG - May 3, 17:10 UTCMay 3, 19:25 UTC2h 15m
2026-04-30 N672HG - Apr 30, 18:40 UTCApr 30, 21:20 UTC2h 40m
2026-04-24 N672HG - Apr 24, 23:40 UTCApr 25, 01:15 UTC1h 35m
2026-04-24 N672HG - Apr 24, 21:55 UTCApr 24, 22:50 UTC55m
2026-04-23 N672HG - Apr 23, 19:45 UTCApr 23, 22:20 UTC2h 35m
2026-04-19 N672HG - Apr 19, 16:45 UTCApr 19, 19:40 UTC2h 55m
2026-04-15 N672HG - Apr 15, 17:05 UTCApr 15, 18:15 UTC1h 10m

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 N672HG page for operator, model, and routing details .

Mode-S A8E3DC frequently asked

What is Mode-S code A8E3DC?
A8E3DC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N672HG.
Where is Mode-S A8E3DC registered?
Mode-S code A8E3DC 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 A8E3DC broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8E3DC, octal 52161734, decimal 11,068,380.
What flights does A8E3DC operate?
Mode-S A8E3DC has broadcast 1 distinct callsign, including N672HG.