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
Broadcasting now · callsign SKW4721 · 32,825 ft
Flights observed
592
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A7E6CF is currently broadcasting. Map zoomed to live position.

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
SKW4717 - 9 2026-07-14
SKW5393 SkyWest Airlines 8 2026-05-25
SKW4765 SkyWest Airlines 8 2026-04-21
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
SKW5846 - 5 2026-07-09
SKW5753 - 5 2026-06-26
SKW5662 - 5 2026-07-04
SKW5299 - 5 2026-07-04
SKW4789 SkyWest Airlines 5 2026-05-07
SKW779J SkyWest Airlines 4 2026-06-11
SKW5951 SkyWest Airlines 4 2026-04-21
SKW5898 SkyWest Airlines 4 2026-05-06
SKW5812 SkyWest Airlines 4 2026-05-30
SKW5691 SkyWest Airlines 4 2026-04-27
SKW5636 - 4 2026-07-12
SKW5604 - 4 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4717 - Jul 14, 17:00 UTCJul 14, 17:45 UTC45m
2026-07-14 SKW5323 GEG → SFO Jul 14, 14:15 UTCJul 14, 16:15 UTC2h 0m
2026-07-14 SKW5693 SFO → GEG Jul 14, 04:00 UTCJul 14, 05:30 UTC1h 30m
2026-07-14 SKW5349 - Jul 14, 02:00 UTCJul 14, 02:30 UTC30m
2026-07-13 SKW4806 - Jul 13, 22:20 UTCJul 14, 00:10 UTC1h 50m
2026-07-13 SKW4806 DEN → FAT Jul 13, 22:15 UTCJul 14, 00:14 UTC1h 59m
2026-07-13 SKW4686 - Jul 13, 19:00 UTCJul 13, 20:40 UTC1h 40m
2026-07-13 SKW5369 - Jul 13, 15:50 UTCJul 13, 17:15 UTC1h 25m
2026-07-13 SKW5683 - Jul 13, 11:30 UTCJul 13, 11:45 UTC15m
2026-07-13 SKW5683 SLC → DEN Jul 13, 11:36 UTCJul 13, 12:30 UTC54m
2026-07-12 SKW5261 DEN → SLC Jul 12, 22:45 UTCJul 12, 23:45 UTC1h 0m
2026-07-12 SKW5261 DEN → SLC Jul 12, 22:47 UTCJul 12, 23:41 UTC54m
2026-07-12 SKW4721 - Jul 12, 19:25 UTCJul 12, 21:15 UTC1h 50m
2026-07-12 SKW4721 PSC → DEN Jul 12, 19:24 UTCJul 12, 21:19 UTC1h 55m
2026-07-12 SKW4717 - Jul 12, 16:35 UTCJul 12, 17:50 UTC1h 15m
2026-07-12 SKW4717 SFO → PSC Jul 12, 16:41 UTCJul 12, 17:57 UTC1h 16m
2026-07-12 SKW5738 - Jul 12, 13:20 UTCJul 12, 14:55 UTC1h 35m
2026-07-12 SKW5738 PHX → SFO Jul 12, 13:13 UTCJul 12, 14:46 UTC1h 33m
2026-07-12 SKW5319 - Jul 12, 06:01 UTCJul 12, 07:01 UTC1h 0m
2026-07-12 SKW5636 - Jul 12, 04:05 UTCJul 12, 04:30 UTC25m
2026-07-12 SKW5636 SAN → LAX Jul 12, 04:01 UTCJul 12, 04:26 UTC25m
2026-07-12 SKW5415 LAX → SAN Jul 12, 02:25 UTCJul 12, 02:55 UTC30m
2026-07-11 SKW5489 - Jul 11, 21:45 UTCJul 12, 00:55 UTC3h 10m
2026-07-11 SKW5426 - Jul 11, 17:30 UTCJul 11, 20:35 UTC3h 5m
2026-07-11 SKW4741 - Jul 11, 13:40 UTCJul 11, 16:05 UTC2h 25m
2026-07-11 SKW5370 - Jul 11, 03:35 UTCJul 11, 03:45 UTC10m
2026-07-11 SKW5370 LAX → MSO Jul 11, 03:38 UTCJul 11, 05:43 UTC2h 5m
2026-07-11 SKW5647 - Jul 11, 01:50 UTCJul 11, 02:15 UTC25m
2026-07-11 SKW5862 SFO → SBA Jul 11, 00:15 UTCJul 11, 01:05 UTC50m
2026-07-10 SKW5599 CLD → SFO Jul 10, 21:50 UTCJul 10, 23:00 UTC1h 10m
2026-07-10 SKW5599 CLD → SFO Jul 10, 21:51 UTCJul 10, 22:56 UTC1h 5m
2026-07-10 SKW5507 DEN → CLD Jul 10, 18:00 UTCJul 10, 20:00 UTC2h 0m
2026-07-10 SKW4710 - Jul 10, 14:40 UTCJul 10, 15:45 UTC1h 5m
2026-07-10 SKW4665 - Jul 10, 01:15 UTCJul 10, 02:05 UTC50m
2026-07-09 SKW5846 - Jul 9, 21:40 UTCJul 9, 23:55 UTC2h 15m
2026-07-09 SKW5846 OTH → DEN Jul 9, 21:28 UTCJul 9, 23:53 UTC2h 25m
2026-07-09 SKW4689 - Jul 9, 19:30 UTCJul 9, 20:20 UTC50m
2026-07-09 SKW4689 SFO → OTH Jul 9, 19:19 UTCJul 9, 20:32 UTC1h 13m
2026-07-09 SKW5519 CLD → SFO Jul 9, 16:23 UTCJul 9, 17:25 UTC1h 2m
2026-07-09 SKW5519 - Jul 9, 16:15 UTCJul 9, 17:25 UTC1h 10m
2026-07-09 SKW5508 - Jul 9, 01:55 UTCJul 9, 03:05 UTC1h 10m
2026-07-08 SKW4786 - Jul 8, 23:25 UTCJul 9, 00:35 UTC1h 10m
2026-07-08 SKW4786 PSP → SFO Jul 8, 23:22 UTCJul 9, 00:33 UTC1h 11m
2026-07-08 SKW5312 IAH → MSY Jul 8, 20:55 UTCJul 8, 21:45 UTC50m
2026-07-08 SKW5312 IAH → MSY Jul 8, 20:51 UTCJul 8, 21:53 UTC1h 2m
2026-07-08 SKW5248 SMF → SFO Jul 8, 19:10 UTCJul 8, 19:45 UTC35m
2026-07-08 SKW5248 SMF → SFO Jul 8, 19:04 UTCJul 8, 19:39 UTC35m
2026-07-08 SKW5372 - Jul 8, 16:35 UTCJul 8, 17:40 UTC1h 5m
2026-07-08 SKW5372 LAX → SMF Jul 8, 16:40 UTCJul 8, 17:39 UTC59m
2026-07-08 SKW4730 - Jul 8, 13:00 UTCJul 8, 14:45 UTC1h 45m

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?
Yes. Mode-S A7E6CF is currently airborne.
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 SKW4717, SKW5393, SKW4765, SKW5399, SKW4671.