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 24d ago
Flights observed
171
Distinct callsigns
2
Country
US
Last broadcast
24d 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 - 155 2026-06-19
N670QS - 16 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-19 EJA670 BNA → CMH Jun 19, 20:19 UTCJun 19, 21:09 UTC50m
2026-06-19 EJA670 - Jun 19, 18:30 UTCJun 19, 19:34 UTC1h 5m
2026-06-19 EJA670 - Jun 19, 15:09 UTCJun 19, 16:14 UTC1h 5m
2026-06-18 EJA670 LEX → BNA Jun 18, 22:45 UTCJun 18, 23:50 UTC1h 5m
2026-06-18 EJA670 - Jun 18, 21:05 UTCJun 18, 22:15 UTC1h 10m
2026-06-18 EJA670 - Jun 18, 19:10 UTCJun 18, 19:25 UTC15m
2026-06-18 EJA670 - Jun 18, 13:50 UTCJun 18, 17:40 UTC3h 50m
2026-06-17 EJA670 CLD → AZA Jun 17, 18:35 UTCJun 17, 19:25 UTC50m
2026-06-17 EJA670 LAS → CLD Jun 17, 17:10 UTCJun 17, 17:55 UTC45m
2026-06-17 EJA670 - Jun 17, 12:55 UTCJun 17, 14:00 UTC1h 5m
2026-06-16 EJA670 - Jun 16, 21:35 UTCJun 16, 23:10 UTC1h 35m
2026-06-16 EJA670 - Jun 16, 17:30 UTCJun 16, 19:35 UTC2h 5m
2026-06-16 EJA670 - Jun 16, 16:20 UTCJun 16, 16:45 UTC25m
2026-06-16 EJA670 - Jun 16, 15:09 UTCJun 16, 15:30 UTC20m
2026-06-15 EJA670 - Jun 15, 20:20 UTCJun 16, 00:05 UTC3h 45m
2026-06-15 EJA670 - Jun 15, 18:10 UTCJun 15, 19:05 UTC55m
2026-06-15 EJA670 - Jun 15, 14:55 UTCJun 15, 15:40 UTC45m
2026-06-14 EJA670 SJC → SBA Jun 14, 15:25 UTCJun 15, 01:10 UTC9h 44m
2026-06-11 EJA670 SJC → SBA Jun 11, 21:20 UTCJun 12, 00:15 UTC2h 55m
2026-06-11 EJA670 SJC → SBA Jun 11, 18:50 UTCJun 11, 19:50 UTC1h 0m
2026-06-11 EJA670 SJC → SBA Jun 11, 18:30 UTCJun 11, 18:45 UTC15m
2026-06-11 N670QS - Jun 11, 16:45 UTCJun 11, 17:15 UTC30m
2026-06-11 N670QS - Jun 11, 14:30 UTCJun 11, 15:15 UTC45m
2026-06-09 EJA670 SJC → SBA Jun 9, 19:45 UTCJun 9, 20:25 UTC40m
2026-06-09 N670QS - Jun 9, 18:35 UTCJun 9, 19:10 UTC35m
2026-06-09 N670QS - Jun 9, 14:45 UTCJun 9, 17:15 UTC2h 30m
2026-06-05 EJA670 SJC → SBA Jun 5, 21:30 UTCJun 5, 22:40 UTC1h 10m
2026-06-05 EJA670 SJC → SBA Jun 5, 19:45 UTCJun 5, 20:35 UTC50m
2026-06-05 EJA670 SJC → SBA Jun 5, 17:50 UTCJun 5, 18:35 UTC45m
2026-06-05 EJA670 SJC → SBA Jun 5, 13:15 UTCJun 5, 16:50 UTC3h 35m
2026-06-05 EJA670 SJC → SBA Jun 5, 02:15 UTCJun 5, 04:05 UTC1h 50m
2026-06-04 EJA670 SJC → SBA Jun 4, 22:50 UTCJun 5, 00:40 UTC1h 50m
2026-06-04 EJA670 SJC → SBA Jun 4, 21:50 UTCJun 4, 22:05 UTC15m
2026-06-04 EJA670 SJC → SBA Jun 4, 20:30 UTCJun 4, 20:55 UTC25m
2026-06-04 EJA670 SJC → SBA Jun 4, 17:15 UTCJun 4, 18:30 UTC1h 15m
2026-06-03 EJA670 SJC → SBA Jun 3, 22:00 UTCJun 4, 18:30 UTC20h 30m
2026-06-03 EJA670 SJC → SBA Jun 3, 18:50 UTCJun 3, 19:45 UTC55m
2026-06-03 EJA670 SJC → SBA Jun 3, 16:15 UTCJun 3, 17:45 UTC1h 30m
2026-06-03 EJA670 SJC → SBA Jun 3, 00:20 UTCJun 3, 01:55 UTC1h 35m
2026-06-02 EJA670 SJC → SBA Jun 2, 19:00 UTCJun 2, 21:30 UTC2h 30m
2026-06-02 EJA670 SJC → SBA Jun 2, 02:15 UTCJun 2, 02:35 UTC20m
2026-06-02 EJA670 SJC → SBA Jun 2, 01:15 UTCJun 2, 01:30 UTC15m
2026-06-01 EJA670 SJC → SBA Jun 1, 20:55 UTCJun 2, 00:05 UTC3h 10m
2026-06-01 EJA670 SJC → SBA Jun 1, 17:30 UTCJun 1, 19:55 UTC2h 25m
2026-05-31 EJA670 SJC → SBA May 31, 23:35 UTCJun 1, 03:00 UTC3h 25m
2026-05-31 EJA670 SJC → SBA May 31, 21:40 UTCMay 31, 22:10 UTC30m
2026-05-31 EJA670 SJC → SBA May 31, 19:00 UTCMay 31, 20:55 UTC1h 55m
2026-05-31 EJA670 SJC → SBA May 31, 17:10 UTCMay 31, 18:00 UTC50m
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

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 24d 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.