sensors Mode-S transponder

A8EF2B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N675JZ · operated by MERCER FRASER CO

Hex
A8EF2B
Octal
52167453
Decimal
11,071,275
Country
US
Tail
N675JZ
No current signal · last broadcast 12h ago
Flights observed
58
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A8EF2B.

Country allocation

The ICAO 24-bit address A8EF2B 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
N675JZ - 58 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N675JZ - May 29, 23:20 UTCMay 30, 00:25 UTC1h 5m
2026-05-29 N675JZ - May 29, 21:55 UTCMay 29, 22:40 UTC45m
2026-05-29 N675JZ - May 29, 19:45 UTCMay 29, 20:10 UTC25m
2026-05-29 N675JZ - May 29, 17:00 UTCMay 29, 17:10 UTC10m
2026-05-29 N675JZ - May 29, 15:20 UTCMay 29, 15:25 UTC5m
2026-05-28 N675JZ - May 28, 13:50 UTCMay 28, 17:05 UTC3h 15m
2026-05-18 N675JZ - May 18, 14:55 UTCMay 18, 15:55 UTC1h 0m
2026-05-18 N675JZ - May 18, 13:25 UTCMay 18, 14:20 UTC55m
2026-05-17 N675JZ - May 17, 22:40 UTCMay 18, 00:10 UTC1h 30m
2026-05-17 N675JZ - May 17, 19:20 UTCMay 17, 22:05 UTC2h 45m
2026-05-17 N675JZ - May 17, 18:10 UTCMay 17, 18:35 UTC25m
2026-05-17 N675JZ - May 17, 00:05 UTCMay 17, 00:30 UTC25m
2026-05-16 N675JZ SJC → RDD May 16, 17:55 UTCMay 16, 19:15 UTC1h 20m
2026-05-16 N675JZ - May 16, 14:25 UTCMay 16, 15:31 UTC1h 5m
2026-05-15 N675JZ - May 15, 21:10 UTCMay 15, 22:25 UTC1h 15m
2026-05-15 N675JZ - May 15, 14:30 UTCMay 15, 15:35 UTC1h 4m
2026-05-14 N675JZ - May 14, 22:50 UTCMay 14, 23:55 UTC1h 5m
2026-05-14 N675JZ - May 14, 20:00 UTCMay 14, 20:35 UTC35m
2026-05-14 N675JZ - May 14, 19:00 UTCMay 14, 19:25 UTC25m
2026-05-14 N675JZ - May 14, 16:20 UTCMay 14, 18:35 UTC2h 15m
2026-05-14 N675JZ - May 14, 13:55 UTCMay 14, 15:40 UTC1h 45m
2026-05-13 N675JZ - May 13, 22:05 UTCMay 13, 23:10 UTC1h 5m
2026-05-11 N675JZ MCC → MHR May 11, 16:05 UTCMay 11, 16:10 UTC5m
2026-05-11 N675JZ - May 11, 15:05 UTCMay 11, 15:25 UTC20m
2026-05-11 N675JZ - May 11, 13:45 UTCMay 11, 14:35 UTC50m
2026-05-10 N675JZ - May 10, 20:00 UTCMay 10, 21:14 UTC1h 15m
2026-05-10 N675JZ - May 10, 17:49 UTCMay 10, 19:00 UTC1h 10m
2026-05-09 N675JZ - May 9, 02:05 UTCMay 9, 03:00 UTC55m
2026-05-09 N675JZ SJC → MCC May 9, 01:10 UTCMay 9, 01:45 UTC35m
2026-05-08 N675JZ - May 8, 23:20 UTCMay 9, 00:25 UTC1h 5m
2026-05-05 N675JZ - May 5, 23:35 UTCMay 6, 00:31 UTC55m
2026-05-05 N675JZ - May 5, 13:30 UTCMay 5, 15:30 UTC2h 0m
2026-05-04 N675JZ - May 4, 23:05 UTCMay 5, 00:15 UTC1h 10m
2026-05-04 N675JZ - May 4, 15:20 UTCMay 4, 16:35 UTC1h 15m
2026-04-30 N675JZ - Apr 30, 23:45 UTCMay 1, 00:40 UTC55m
2026-04-30 N675JZ MHR → MCC Apr 30, 21:45 UTCApr 30, 21:55 UTC10m
2026-04-30 N675JZ MCC → MHR Apr 30, 17:35 UTCApr 30, 17:45 UTC10m
2026-04-30 N675JZ - Apr 30, 15:40 UTCApr 30, 16:30 UTC50m
2026-04-29 N675JZ - Apr 29, 20:25 UTCApr 29, 21:35 UTC1h 10m
2026-04-29 N675JZ - Apr 29, 15:30 UTCApr 29, 15:50 UTC20m
2026-04-29 N675JZ - Apr 29, 14:00 UTCApr 29, 14:50 UTC50m
2026-04-27 N675JZ - Apr 27, 16:10 UTCApr 27, 17:00 UTC50m
2026-04-27 N675JZ - Apr 27, 14:35 UTCApr 27, 15:00 UTC25m
2026-04-27 N675JZ - Apr 27, 13:40 UTCApr 27, 14:05 UTC25m
2026-04-24 N675JZ - Apr 24, 23:55 UTCApr 25, 00:55 UTC1h 0m
2026-04-24 N675JZ - Apr 24, 23:10 UTCApr 24, 23:35 UTC25m
2026-04-24 N675JZ - Apr 24, 21:10 UTCApr 24, 21:45 UTC35m
2026-04-22 N675JZ - Apr 22, 02:15 UTCApr 22, 03:20 UTC1h 5m
2026-04-22 N675JZ - Apr 22, 00:50 UTCApr 22, 01:45 UTC55m
2026-04-20 N675JZ - Apr 20, 21:10 UTCApr 20, 22:10 UTC1h 0m

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 N675JZ page for operator, model, and routing details .

Mode-S A8EF2B frequently asked

What is Mode-S code A8EF2B?
A8EF2B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N675JZ.
Where is Mode-S A8EF2B registered?
Mode-S code A8EF2B 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 A8EF2B broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8EF2B, octal 52167453, decimal 11,071,275.
What flights does A8EF2B operate?
Mode-S A8EF2B has broadcast 1 distinct callsign, including N675JZ.