Apparatus

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sensors Mode-S transponder

A8DD27

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N670QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, ACG AIR LLC, COBANK ACB, WEBER JOSEPH F TRUSTEE, MMBT LLC, NATIONAL DISTRIBUTING COMPANY INC

Hex
A8DD27
Octal
52156447
Decimal
11,066,663
Country
US
Tail
N670QS
Type
C68A
No current signal · last broadcast 1d ago
Flights observed
123
Distinct callsigns
2
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A8DD27.

Country allocation

The ICAO 24-bit address A8DD27 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 2 distinct

Callsign Airline Flights Last seen
EJA670 NetJets 111 2026-05-28
N670QS - 12 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 EJA670 SJC → SBA May 28, 20:55 UTCMay 28, 21:40 UTC45m
2026-05-28 EJA670 SJC → SBA May 28, 16:25 UTCMay 28, 16:40 UTC15m
2026-05-28 EJA670 SJC → SBA May 28, 14:20 UTCMay 28, 15:55 UTC1h 35m
2026-05-28 EJA670 SJC → SBA May 28, 11:35 UTCMay 28, 12:25 UTC50m
2026-05-28 EJA670 SJC → SBA May 28, 10:40 UTCMay 28, 11:00 UTC20m
2026-05-27 EJA670 SJC → SBA May 27, 22:40 UTCMay 27, 23:30 UTC50m
2026-05-27 EJA670 SJC → SBA May 27, 16:20 UTCMay 27, 17:20 UTC1h 0m
2026-05-27 EJA670 SJC → SBA May 27, 00:49 UTCMay 27, 03:09 UTC2h 20m
2026-05-26 EJA670 SJC → SBA May 26, 20:24 UTCMay 26, 21:00 UTC35m
2026-05-26 EJA670 SJC → SBA May 26, 03:15 UTCMay 26, 03:55 UTC40m
2026-05-25 EJA670 SJC → SBA May 25, 21:54 UTCMay 26, 02:35 UTC4h 40m
2026-05-25 EJA670 SJC → SBA May 25, 19:00 UTCMay 25, 19:59 UTC59m
2026-05-25 EJA670 SJC → SBA May 25, 02:15 UTCMay 25, 02:30 UTC15m
2026-05-24 EJA670 SJC → SBA May 24, 23:15 UTCMay 24, 23:30 UTC15m
2026-05-24 EJA670 SJC → SBA May 24, 19:25 UTCMay 24, 21:45 UTC2h 20m
2026-05-24 EJA670 SJC → SBA May 24, 17:20 UTCMay 24, 17:50 UTC30m
2026-05-23 EJA670 SJC → SBA May 23, 17:50 UTCMay 24, 17:45 UTC23h 55m
2026-05-23 EJA670 SJC → SBA May 23, 16:30 UTCMay 23, 18:45 UTC2h 16m
2026-05-22 EJA670 SJC → SBA May 22, 23:20 UTCMay 23, 00:05 UTC45m
2026-05-22 EJA670 SJC → SBA May 22, 20:20 UTCMay 22, 22:40 UTC2h 20m
2026-05-22 EJA670 SJC → SBA May 22, 18:15 UTCMay 22, 18:40 UTC25m
2026-05-22 EJA670 SJC → SBA May 22, 14:20 UTCMay 22, 16:05 UTC1h 45m
2026-05-21 EJA670 SJC → SBA May 21, 22:35 UTCMay 22, 01:50 UTC3h 15m
2026-05-21 EJA670 SJC → SBA May 21, 20:35 UTCMay 21, 21:30 UTC55m
2026-05-21 EJA670 SJC → SBA May 21, 18:35 UTCMay 21, 19:20 UTC45m
2026-05-21 EJA670 SJC → SBA May 21, 16:50 UTCMay 21, 17:50 UTC1h 0m
2026-05-21 EJA670 SJC → SBA May 21, 14:45 UTCMay 21, 15:50 UTC1h 5m
2026-05-21 EJA670 SJC → SBA May 21, 00:35 UTCMay 21, 02:00 UTC1h 25m
2026-05-20 EJA670 SJC → SBA May 20, 20:05 UTCMay 20, 22:15 UTC2h 10m
2026-05-20 EJA670 SJC → SBA May 20, 17:15 UTCMay 20, 19:05 UTC1h 50m
2026-05-20 EJA670 SJC → SBA May 20, 14:45 UTCMay 20, 15:20 UTC35m
2026-05-19 EJA670 SJC → SBA May 19, 20:30 UTCMay 19, 21:40 UTC1h 10m
2026-05-19 EJA670 SJC → SBA May 19, 16:10 UTCMay 19, 17:55 UTC1h 45m
2026-05-19 EJA670 SJC → SBA May 19, 13:20 UTCMay 19, 14:45 UTC1h 25m
2026-05-18 EJA670 SJC → SBA May 18, 19:15 UTCMay 18, 21:25 UTC2h 10m
2026-05-18 EJA670 SJC → SBA May 18, 16:45 UTCMay 18, 17:20 UTC35m
2026-05-18 EJA670 SJC → SBA May 18, 14:05 UTCMay 18, 14:55 UTC50m
2026-05-18 EJA670 SJC → SBA May 18, 11:50 UTCMay 18, 13:05 UTC1h 15m
2026-05-17 EJA670 SJC → SBA May 17, 22:10 UTCMay 18, 01:50 UTC3h 40m
2026-05-17 EJA670 SJC → SBA May 17, 20:50 UTCMay 17, 21:15 UTC25m
2026-05-17 N670QS - May 17, 16:55 UTCMay 17, 18:40 UTC1h 45m
2026-05-16 N670QS - May 16, 16:05 UTCMay 16, 17:30 UTC1h 25m
2026-05-16 EJA670 SJC → SBA May 16, 13:15 UTCMay 16, 14:05 UTC50m
2026-05-13 EJA670 SJC → SBA May 13, 10:50 UTCMay 13, 14:35 UTC3h 45m
2026-05-12 EJA670 SJC → SBA May 12, 15:35 UTCMay 12, 17:30 UTC1h 55m
2026-05-12 EJA670 SJC → SBA May 12, 13:25 UTCMay 12, 14:20 UTC55m
2026-05-11 EJA670 SJC → SBA May 11, 20:30 UTCMay 11, 21:15 UTC45m
2026-05-11 EJA670 SJC → SBA May 11, 17:05 UTCMay 11, 19:20 UTC2h 15m
2026-05-11 EJA670 SJC → SBA May 11, 13:05 UTCMay 11, 15:45 UTC2h 40m
2026-05-10 EJA670 SJC → SBA May 10, 21:44 UTCMay 11, 00:25 UTC2h 40m

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 N670QS page for operator, model, and routing details .

Mode-S A8DD27 frequently asked

What is Mode-S code A8DD27?
A8DD27 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N670QS.
Where is Mode-S A8DD27 registered?
Mode-S code A8DD27 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 A8DD27 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8DD27, octal 52156447, decimal 11,066,663.
What flights does A8DD27 operate?
Mode-S A8DD27 has broadcast 2 distinct callsigns, including EJA670, N670QS.