Apparatus

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sensors Mode-S transponder

A7E6CF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N608UX · EMBRAER ERJ-170-200 (long wing) · operated by UNITED AIRLINES INC

Hex
A7E6CF
Octal
51763317
Decimal
11,003,599
Country
US
Tail
N608UX
Type
E75L
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
661
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S A7E6CF.

Country allocation

The ICAO 24-bit address A7E6CF 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
SKW5846 SkyWest Airlines 10 2026-07-19
SKW4765 SkyWest Airlines 10 2026-07-26
SKW4717 - 9 2026-07-14
SKW5393 SkyWest Airlines 8 2026-05-25
SKW5399 SkyWest Airlines 7 2026-06-23
SKW4671 SkyWest Airlines 7 2026-06-09
SKW4654 - 7 2026-06-23
SKW5514 SkyWest Airlines 6 2026-05-25
SKW4702 SkyWest Airlines 6 2026-06-09
SKW4689 SkyWest Airlines 6 2026-07-19
SKW4652 SkyWest Airlines 6 2026-07-25
SKW5753 - 5 2026-06-26
SKW5662 - 5 2026-07-04
SKW5487 - 5 2026-07-21
SKW5299 - 5 2026-07-04
SKW4789 SkyWest Airlines 5 2026-05-07
SKW4785 SkyWest Airlines 5 2026-07-25
SKW4665 - 5 2026-07-20
SKW779J SkyWest Airlines 4 2026-06-11
SKW5970 - 4 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5577 ORD → LGA Jul 26, 20:10 UTCJul 26, 21:40 UTC1h 30m
2026-07-26 SKW4733 ORD → DCA Jul 26, 17:10 UTCJul 26, 18:40 UTC1h 30m
2026-07-26 SKW4765 DEN → SBP Jul 26, 13:55 UTCJul 26, 15:20 UTC1h 25m
2026-07-26 SKW4765 DEN → SBP Jul 26, 14:04 UTCJul 26, 15:20 UTC1h 16m
2026-07-26 SKW5545 ORD → HPN Jul 26, 10:10 UTCJul 26, 12:15 UTC2h 5m
2026-07-25 SKW4805 MSN → ORD Jul 25, 19:55 UTCJul 25, 21:40 UTC1h 45m
2026-07-25 SKW5536 SFO → TUS Jul 25, 15:50 UTCJul 25, 17:55 UTC2h 5m
2026-07-25 SKW4785 IAH → LGA Jul 25, 03:52 UTCJul 25, 05:39 UTC1h 47m
2026-07-25 SKW4785 IAH → LGA Jul 25, 03:45 UTCJul 25, 05:40 UTC1h 55m
2026-07-25 SKW4652 AVL → ORD Jul 25, 02:40 UTCJul 25, 02:55 UTC15m
2026-07-25 SKW4652 AVL → ORD Jul 25, 01:30 UTCJul 25, 02:55 UTC1h 25m
2026-07-25 SKW4652 AVL → ORD Jul 25, 01:31 UTCJul 25, 02:22 UTC51m
2026-07-24 SKW4760 DEN → ATW Jul 24, 21:55 UTCJul 24, 23:00 UTC1h 5m
2026-07-24 SKW5195 SLC → DTW Jul 24, 18:55 UTCJul 24, 19:55 UTC1h 0m
2026-07-24 SKW5195 SLC → DTW Jul 24, 18:44 UTCJul 24, 19:51 UTC1h 7m
2026-07-22 SKW4760 DEN → ATW Jul 22, 22:55 UTCJul 23, 00:05 UTC1h 10m
2026-07-22 SKW5277 MBS → ORD Jul 22, 18:50 UTCJul 22, 20:30 UTC1h 40m
2026-07-22 SKW5211 LGA → IAH Jul 22, 16:14 UTCJul 22, 17:31 UTC1h 17m
2026-07-22 SKW5712 GEG → SFO Jul 22, 13:25 UTCJul 22, 14:35 UTC1h 10m
2026-07-22 SKW5734 - Jul 22, 01:55 UTCJul 22, 03:10 UTC1h 15m
2026-07-21 SKW4634 FAR → ORD Jul 21, 22:35 UTCJul 22, 00:05 UTC1h 30m
2026-07-21 SKW4629 BOI → SFO Jul 21, 19:50 UTCJul 21, 21:20 UTC1h 30m
2026-07-21 SKW5834 ABQ → DEN Jul 21, 16:50 UTCJul 21, 17:50 UTC1h 0m
2026-07-21 SKW5487 DEN → ABQ Jul 21, 14:25 UTCJul 21, 15:15 UTC50m
2026-07-21 SKW5487 DEN → ABQ Jul 21, 14:20 UTCJul 21, 15:15 UTC55m
2026-07-21 SKW4777 ORD → BNA Jul 21, 10:55 UTCJul 21, 12:30 UTC1h 35m
2026-07-21 SKW5389 SAN → SFO Jul 21, 03:40 UTCJul 21, 05:05 UTC1h 25m
2026-07-21 SKW5389 SAN → SFO Jul 21, 03:13 UTCJul 21, 05:07 UTC1h 54m
2026-07-21 SKW5316 SFO → SAT Jul 21, 00:10 UTCJul 21, 01:30 UTC1h 20m
2026-07-21 SKW5316 SFO → SAT Jul 21, 00:18 UTCJul 21, 01:45 UTC1h 27m
2026-07-20 SKW5251 MSN → ORD Jul 20, 22:05 UTCJul 20, 23:10 UTC1h 5m
2026-07-20 SKW5972 - Jul 20, 18:45 UTCJul 20, 19:45 UTC1h 0m
2026-07-20 SKW5497 DEN → ICT Jul 20, 17:00 UTCJul 20, 18:00 UTC1h 0m
2026-07-20 SKW4710 BIS → DEN Jul 20, 14:43 UTCJul 20, 15:45 UTC1h 2m
2026-07-20 SKW4665 DEN → DEN Jul 20, 01:30 UTCJul 20, 15:45 UTC14h 15m
2026-07-19 SKW5846 ORD → SDF Jul 19, 22:35 UTCJul 20, 00:05 UTC1h 30m
2026-07-19 SKW5846 ORD → SDF Jul 19, 22:00 UTCJul 19, 22:25 UTC25m
2026-07-19 SKW5846 ORD → SDF Jul 19, 22:03 UTCJul 20, 00:08 UTC2h 5m
2026-07-19 SKW4689 LAX → SFO Jul 19, 19:25 UTCJul 19, 20:25 UTC1h 0m
2026-07-19 SKW5519 CLD → SFO Jul 19, 17:10 UTCJul 19, 18:25 UTC1h 15m
2026-07-19 SKW5508 SFO → CLD Jul 19, 03:20 UTCJul 19, 04:35 UTC1h 15m
2026-07-19 SKW5433 ONT → SFO Jul 19, 01:25 UTCJul 19, 02:25 UTC1h 0m
2026-07-19 SKW5433 ONT → SFO Jul 19, 01:28 UTCJul 19, 02:23 UTC55m
2026-07-18 SKW5471 SFO → ACV Jul 18, 23:35 UTCJul 19, 00:35 UTC1h 0m
2026-07-18 SKW5945 IAH → SLP Jul 18, 21:00 UTCJul 18, 22:35 UTC1h 35m
2026-07-18 SKW717C DEN → SUN Jul 18, 18:10 UTCJul 18, 19:25 UTC1h 15m
2026-07-18 SKW5295 - Jul 18, 13:40 UTCJul 18, 16:00 UTC2h 20m
2026-07-18 SKW5815 DEN → BHM Jul 18, 00:19 UTCJul 18, 02:40 UTC2h 20m
2026-07-18 SKW5815 DEN → BHM Jul 18, 00:11 UTCJul 18, 02:37 UTC2h 26m
2026-07-17 SKW5268 - Jul 17, 20:55 UTCJul 17, 22:05 UTC1h 10m

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 N608UX page for operator, model, and routing details .

Mode-S A7E6CF frequently asked

What is Mode-S code A7E6CF?
A7E6CF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N608UX.
Where is Mode-S A7E6CF registered?
Mode-S code A7E6CF 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 A7E6CF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7E6CF, octal 51763317, decimal 11,003,599.
What flights does A7E6CF operate?
Mode-S A7E6CF has broadcast 20 distinct callsigns, including SKW5846, SKW4765, SKW4717, SKW5393, SKW5399.