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sensors Mode-S transponder

A8EFBA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N675QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, ACRAM LLC, ATLANTIC UNION BANK, BEVO PRODUCTION CO, CARROLL CHARLES A, CARROLL CHRISTINE A

Hex
A8EFBA
Octal
52167672
Decimal
11,071,418
Country
US
Tail
N675QS
Type
C68A
No current signal · last broadcast Jul 22, 20:20 UTC
Flights observed
222
Distinct callsigns
2
Country
US
Last broadcast
Jul 22, 20:20 UTC

Last known position

Most recent position reported by Mode-S A8EFBA.

Country allocation

The ICAO 24-bit address A8EFBA 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
EJA675 - 215 2026-07-22
N675QS - 7 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 EJA675 SFO → LAS Jul 22, 19:00 UTCJul 22, 20:05 UTC1h 5m
2026-07-21 EJA675 - Jul 21, 21:20 UTCJul 21, 23:10 UTC1h 50m
2026-07-21 EJA675 BFI → SEA Jul 21, 19:40 UTCJul 21, 19:55 UTC15m
2026-07-21 EJA675 - Jul 21, 17:20 UTCJul 21, 17:45 UTC25m
2026-07-21 EJA675 - Jul 21, 14:45 UTCJul 21, 16:05 UTC1h 20m
2026-07-20 EJA675 OAK → SLC Jul 20, 13:10 UTCJul 20, 14:35 UTC1h 25m
2026-07-19 EJA675 - Jul 19, 22:35 UTCJul 19, 23:20 UTC45m
2026-07-19 EJA675 - Jul 19, 21:10 UTCJul 19, 21:55 UTC45m
2026-07-19 EJA675 - Jul 19, 17:20 UTCJul 19, 20:20 UTC3h 0m
2026-07-19 EJA675 - Jul 19, 12:55 UTCJul 19, 15:40 UTC2h 45m
2026-07-18 EJA675 - Jul 18, 19:10 UTCJul 18, 19:25 UTC15m
2026-07-18 EJA675 - Jul 18, 13:00 UTCJul 18, 14:20 UTC1h 20m
2026-07-17 EJA675 - Jul 17, 18:19 UTCJul 17, 19:55 UTC1h 35m
2026-07-17 EJA675 - Jul 17, 15:15 UTCJul 17, 17:15 UTC2h 0m
2026-07-17 EJA675 - Jul 17, 12:30 UTCJul 17, 14:04 UTC1h 35m
2026-07-17 EJA675 BOS → PHL Jul 17, 10:25 UTCJul 17, 11:20 UTC55m
2026-07-17 EJA675 - Jul 17, 01:35 UTCJul 17, 02:34 UTC1h 0m
2026-07-16 EJA675 - Jul 16, 22:49 UTCJul 17, 00:25 UTC1h 35m
2026-07-16 EJA675 - Jul 16, 20:00 UTCJul 16, 21:35 UTC1h 35m
2026-07-16 EJA675 - Jul 16, 17:25 UTCJul 16, 18:10 UTC45m
2026-07-16 EJA675 DAL → LEX Jul 16, 02:30 UTCJul 16, 04:20 UTC1h 50m
2026-07-15 N675QS - Jul 15, 23:15 UTCJul 16, 01:35 UTC2h 20m
2026-07-15 N675QS - Jul 15, 19:30 UTCJul 15, 20:45 UTC1h 15m
2026-07-14 EJA675 - Jul 14, 11:00 UTCJul 14, 12:30 UTC1h 30m
2026-07-13 EJA675 - Jul 13, 16:25 UTCJul 13, 18:25 UTC2h 0m
2026-07-13 EJA675 - Jul 13, 13:50 UTCJul 13, 14:30 UTC40m
2026-07-13 EJA675 - Jul 13, 12:35 UTCJul 13, 13:00 UTC25m
2026-07-13 EJA675 - Jul 13, 10:20 UTCJul 13, 11:05 UTC45m
2026-07-12 EJA675 - Jul 12, 21:30 UTCJul 12, 22:05 UTC35m
2026-07-12 EJA675 - Jul 12, 19:20 UTCJul 12, 20:10 UTC50m
2026-07-12 EJA675 - Jul 12, 15:30 UTCJul 12, 16:35 UTC1h 5m
2026-07-12 EJA675 RDG → MVY Jul 12, 13:35 UTCJul 12, 14:35 UTC1h 0m
2026-07-11 EJA675 - Jul 11, 22:20 UTCJul 11, 23:00 UTC40m
2026-07-11 EJA675 - Jul 11, 18:55 UTCJul 11, 20:35 UTC1h 40m
2026-07-11 EJA675 - Jul 11, 16:05 UTCJul 11, 17:25 UTC1h 20m
2026-07-11 EJA675 - Jul 11, 14:05 UTCJul 11, 15:15 UTC1h 10m
2026-07-10 EJA675 TEB → PDK Jul 10, 20:05 UTCJul 10, 22:00 UTC1h 55m
2026-07-10 EJA675 - Jul 10, 17:25 UTCJul 10, 18:15 UTC50m
2026-07-10 EJA675 - Jul 10, 15:55 UTCJul 10, 16:10 UTC15m
2026-07-10 EJA675 - Jul 10, 14:15 UTCJul 10, 14:55 UTC40m
2026-07-09 EJA675 - Jul 9, 20:15 UTCJul 9, 21:05 UTC50m
2026-07-09 EJA675 - Jul 9, 17:10 UTCJul 9, 19:20 UTC2h 10m
2026-07-09 EJA675 - Jul 9, 00:20 UTCJul 9, 00:55 UTC35m
2026-07-08 EJA675 BNA → MAC Jul 8, 21:45 UTCJul 8, 22:30 UTC45m
2026-07-08 EJA675 - Jul 8, 18:55 UTCJul 8, 20:45 UTC1h 50m
2026-07-08 EJA675 - Jul 8, 17:00 UTCJul 8, 17:30 UTC30m
2026-07-08 EJA675 - Jul 8, 15:30 UTCJul 8, 16:00 UTC30m
2026-07-07 EJA675 - Jul 7, 18:10 UTCJul 7, 19:10 UTC1h 0m
2026-07-07 N675QS - Jul 7, 10:05 UTCJul 7, 16:35 UTC6h 30m
2026-07-06 EJA675 - Jul 6, 21:30 UTCJul 6, 21:45 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 N675QS page for operator, model, and routing details .

Mode-S A8EFBA frequently asked

What is Mode-S code A8EFBA?
A8EFBA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N675QS.
Where is Mode-S A8EFBA registered?
Mode-S code A8EFBA 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 A8EFBA broadcasting right now?
No active broadcast right now. Last signal was Jul 22, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8EFBA, octal 52167672, decimal 11,071,418.
What flights does A8EFBA operate?
Mode-S A8EFBA has broadcast 2 distinct callsigns, including EJA675, N675QS.