Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8FEB8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N679SA · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
A8FEB8
Octal
52177270
Decimal
11,075,256
Country
US
Tail
N679SA
Type
CRJ2
No current signal · last broadcast 16h ago
Flights observed
619
Distinct callsigns
20
Country
US
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S A8FEB8.

Country allocation

The ICAO 24-bit address A8FEB8 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 20 distinct

Callsign Airline Flights Last seen
SKW5566 - 23 2026-07-01
SKW5961 SkyWest Airlines 22 2026-05-21
SKW5248 SkyWest Airlines 22 2026-05-19
SKW5460 SkyWest Airlines 21 2026-05-19
SKW5220 SkyWest Airlines 21 2026-05-19
SKW5539 SkyWest Airlines 19 2026-05-21
SKW5323 SkyWest Airlines 19 2026-05-16
SKW5796 SkyWest Airlines 17 2026-05-21
SKW5997 - 16 2026-07-13
SKW5737 SkyWest Airlines 16 2026-05-18
SKW4729 SkyWest Airlines 16 2026-05-20
SKW514L SkyWest Airlines 12 2026-05-20
SKW5958 SkyWest Airlines 9 2026-05-17
SKW5895 SkyWest Airlines 9 2026-05-20
SKW565E SkyWest Airlines 9 2026-05-15
SKW789T SkyWest Airlines 8 2026-05-20
SKW5383 SkyWest Airlines 8 2026-04-27
SKW5627 SkyWest Airlines 7 2026-05-20
SKW5238 SkyWest Airlines 7 2026-04-28
SKW4739 SkyWest Airlines 7 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SKW5648 - Jul 13, 23:15 UTCJul 13, 23:45 UTC30m
2026-07-13 SKW5648 MKE → ORD Jul 13, 22:43 UTCJul 13, 23:26 UTC43m
2026-07-13 SKW5345 - Jul 13, 21:00 UTCJul 13, 21:30 UTC30m
2026-07-13 SKW6059 - Jul 13, 18:35 UTCJul 13, 19:35 UTC1h 0m
2026-07-13 SKW6069 - Jul 13, 16:50 UTCJul 13, 17:25 UTC35m
2026-07-13 SKW5997 - Jul 13, 13:55 UTCJul 13, 14:30 UTC35m
2026-07-13 SKW5997 MLI → ORD Jul 13, 13:35 UTCJul 13, 14:22 UTC47m
2026-07-13 SKW578A - Jul 13, 01:05 UTCJul 13, 01:30 UTC25m
2026-07-12 SKW4698 CAK → ORD Jul 12, 22:10 UTCJul 12, 23:25 UTC1h 15m
2026-07-12 SKW5563 - Jul 12, 20:10 UTCJul 12, 21:10 UTC1h 0m
2026-07-12 SKW5100 - Jul 12, 16:45 UTCJul 12, 17:35 UTC50m
2026-07-12 SKW5119 - Jul 12, 13:50 UTCJul 12, 15:15 UTC1h 25m
2026-07-10 SKW5126 - Jul 10, 16:45 UTCJul 10, 17:20 UTC35m
2026-07-10 SKW566Z - Jul 10, 14:30 UTCJul 10, 15:05 UTC35m
2026-07-10 SKW566Z DEN → LBL Jul 10, 14:23 UTCJul 10, 15:15 UTC52m
2026-07-10 SKW6072 - Jul 10, 11:50 UTCJul 10, 12:35 UTC45m
2026-07-10 SKW357Z - Jul 10, 03:55 UTCJul 10, 04:50 UTC55m
2026-07-10 SKW5107 - Jul 10, 02:00 UTCJul 10, 02:30 UTC30m
2026-07-09 SKW5039 - Jul 9, 23:20 UTCJul 10, 00:20 UTC1h 0m
2026-07-09 SKW5649 - Jul 9, 19:30 UTCJul 9, 20:40 UTC1h 10m
2026-07-09 SKW5649 LNK → DEN Jul 9, 19:26 UTCJul 9, 20:38 UTC1h 12m
2026-07-09 SKW5831 - Jul 9, 17:40 UTCJul 9, 18:40 UTC1h 0m
2026-07-09 SKW4736 CPR → DEN Jul 9, 15:00 UTCJul 9, 15:45 UTC45m
2026-07-09 SKW5802 DEN → CPR Jul 9, 02:10 UTCJul 9, 02:50 UTC40m
2026-07-09 SKW4743 - Jul 9, 00:00 UTCJul 9, 01:00 UTC1h 0m
2026-07-08 SKW5233 - Jul 8, 20:30 UTCJul 8, 21:10 UTC40m
2026-07-08 SKW5233 DEN → AMA Jul 8, 20:33 UTCJul 8, 21:24 UTC51m
2026-07-08 SKW6096 COS → DEN Jul 8, 19:05 UTCJul 8, 19:25 UTC20m
2026-07-08 SKW6096 COS → DEN Jul 8, 18:20 UTCJul 8, 19:23 UTC1h 3m
2026-07-08 1234567 COS → COS Jul 8, 08:55 UTCJul 8, 09:05 UTC10m
2026-07-08 SKW5861 DEN → COS Jul 8, 02:35 UTCJul 8, 02:50 UTC15m
2026-07-08 SKW5861 DEN → COS Jul 8, 02:29 UTCJul 8, 02:51 UTC22m
2026-07-07 SKW5137 HYS → DEN Jul 7, 11:50 UTCJul 7, 12:35 UTC45m
2026-07-07 SKW744C - Jul 7, 03:00 UTCJul 7, 03:25 UTC25m
2026-07-06 SKW5084 - Jul 6, 23:40 UTCJul 6, 23:55 UTC15m
2026-07-06 SKW5084 PIR → DEN Jul 6, 23:29 UTCJul 7, 00:50 UTC1h 21m
2026-07-06 SKW302C DEN → PIR Jul 6, 20:15 UTCJul 6, 21:15 UTC1h 0m
2026-07-06 SKW5053 - Jul 6, 17:20 UTCJul 6, 18:35 UTC1h 15m
2026-07-06 SKW792R - Jul 6, 15:05 UTCJul 6, 16:15 UTC1h 10m
2026-07-06 SKW5221 - Jul 6, 13:35 UTCJul 6, 14:15 UTC40m
2026-07-06 SKW5494 - Jul 6, 02:20 UTCJul 6, 02:55 UTC35m
2026-07-06 SKW5494 DEN → AMA Jul 6, 01:39 UTCJul 6, 03:14 UTC1h 35m
2026-07-05 SKW5590 - Jul 5, 22:40 UTCJul 5, 23:50 UTC1h 10m
2026-07-05 SKW5845 - Jul 5, 20:10 UTCJul 5, 21:20 UTC1h 10m
2026-07-05 SKW5845 DEN → BIL Jul 5, 20:13 UTCJul 5, 21:17 UTC1h 4m
2026-07-05 SKW5126 - Jul 5, 16:40 UTCJul 5, 17:15 UTC35m
2026-07-05 SKW566Z - Jul 5, 14:20 UTCJul 5, 15:00 UTC40m
2026-07-05 SKW5104 - Jul 5, 11:45 UTCJul 5, 12:50 UTC1h 5m
2026-07-05 SKW5062 DEN → PIR Jul 5, 03:20 UTCJul 5, 04:15 UTC55m
2026-07-05 SKW553U - Jul 5, 00:00 UTCJul 5, 01:40 UTC1h 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 N679SA page for operator, model, and routing details .

Mode-S A8FEB8 frequently asked

What is Mode-S code A8FEB8?
A8FEB8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N679SA.
Where is Mode-S A8FEB8 registered?
Mode-S code A8FEB8 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 A8FEB8 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8FEB8, octal 52177270, decimal 11,075,256.
What flights does A8FEB8 operate?
Mode-S A8FEB8 has broadcast 20 distinct callsigns, including SKW5566, SKW5961, SKW5248, SKW5460, SKW5220.