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sensors Mode-S transponder

A7F7A0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N612QX · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A7F7A0
Octal
51773640
Decimal
11,007,904
Country
US
Tail
N612QX
Type
CRJ7
No current signal · last broadcast Jul 24, 04:45 UTC
Flights observed
233
Distinct callsigns
20
Country
US
Last broadcast
Jul 24, 04:45 UTC

Last known position

Most recent position reported by Mode-S A7F7A0.

Country allocation

The ICAO 24-bit address A7F7A0 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
SKW6229 - 8 2026-06-29
SKW6352 - 6 2026-07-01
SKW6238 - 6 2026-07-14
SKW5003 - 6 2026-06-25
SKW6194 - 5 2026-07-15
SKW4973 - 5 2026-07-07
SKW4820 - 5 2026-07-03
SKW6503 - 4 2026-07-12
SKW6451 - 4 2026-06-23
SKW6417 - 4 2026-07-09
SKW6384 - 4 2026-07-06
SKW6343 SkyWest Airlines 4 2026-07-20
SKW6339 - 4 2026-07-20
SKW5010 - 4 2026-07-11
SKW4956 - 4 2026-07-14
SKW4930 SkyWest Airlines 4 2026-07-21
SKW4825 SkyWest Airlines 4 2026-06-26
SKW9909 - 3 2026-07-03
SKW6437 - 3 2026-07-15
SKW6407 SkyWest Airlines 3 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 SKW238P PHX → OKC Jul 24, 02:50 UTCJul 24, 04:45 UTC1h 55m
2026-07-24 SKW6354 ORD → PVD Jul 24, 00:15 UTCJul 24, 01:45 UTC1h 30m
2026-07-23 SKW6354 ORD → PVD Jul 23, 21:45 UTCJul 23, 23:20 UTC1h 35m
2026-07-23 SKW4994 SBN → DFW Jul 23, 01:15 UTCJul 23, 02:25 UTC1h 10m
2026-07-22 SKW4994 SBN → DFW Jul 22, 23:20 UTCJul 23, 00:20 UTC1h 0m
2026-07-22 SKW4991 ORD → LEX Jul 22, 19:25 UTCJul 22, 21:45 UTC2h 20m
2026-07-22 SKW4991 ORD → LEX Jul 22, 19:22 UTCJul 22, 21:44 UTC2h 22m
2026-07-22 SKW4991 ORD → LEX Jul 22, 15:55 UTCJul 22, 18:10 UTC2h 15m
2026-07-22 SKW6375 - Jul 22, 13:10 UTCJul 22, 14:30 UTC1h 20m
2026-07-22 SKW6375 MRY → PHX Jul 22, 13:13 UTCJul 22, 14:27 UTC1h 14m
2026-07-22 SKW6374 DFW → SJT Jul 22, 03:50 UTCJul 22, 05:10 UTC1h 20m
2026-07-22 SKW6298 LAX → SFO Jul 22, 01:15 UTCJul 22, 02:20 UTC1h 5m
2026-07-21 SKW6298 LAX → SFO Jul 21, 23:20 UTCJul 22, 00:10 UTC50m
2026-07-21 SKW6383 - Jul 21, 19:10 UTCJul 21, 19:40 UTC30m
2026-07-21 SKW6383 YUM → PHX Jul 21, 19:03 UTCJul 21, 19:39 UTC36m
2026-07-21 SKW6383 - Jul 21, 17:35 UTCJul 21, 18:05 UTC30m
2026-07-21 SKW6392 OKC → PHX Jul 21, 14:10 UTCJul 21, 16:00 UTC1h 50m
2026-07-21 SKW6206 PHX → SFO Jul 21, 12:34 UTCJul 21, 13:00 UTC26m
2026-07-21 SKW6206 PHX → SFO Jul 21, 12:30 UTCJul 21, 13:15 UTC45m
2026-07-21 SKW4930 MLI → ORD Jul 21, 10:15 UTCJul 21, 10:55 UTC40m
2026-07-21 SKW4930 MLI → ORD Jul 21, 10:02 UTCJul 21, 10:54 UTC52m
2026-07-21 SKW4885 SFO → LAX Jul 21, 03:55 UTCJul 21, 04:25 UTC30m
2026-07-21 SKW4885 SFO → LAX Jul 21, 03:59 UTCJul 21, 04:36 UTC37m
2026-07-21 SKW4894 XNA → LAX Jul 21, 01:45 UTCJul 21, 02:30 UTC45m
2026-07-21 SKW4894 XNA → LAX Jul 21, 00:00 UTCJul 21, 00:40 UTC40m
2026-07-20 SKW4912 DFW → SBN Jul 20, 21:15 UTCJul 20, 22:55 UTC1h 40m
2026-07-20 SKW4912 DFW → SBN Jul 20, 17:45 UTCJul 20, 19:40 UTC1h 55m
2026-07-20 SKW6343 DAY → ORD Jul 20, 15:35 UTCJul 20, 16:20 UTC45m
2026-07-20 SKW6343 DAY → ORD Jul 20, 13:45 UTCJul 20, 14:20 UTC35m
2026-07-20 SKW6511 - Jul 20, 11:45 UTCJul 20, 12:25 UTC40m
2026-07-20 SKW6511 SHV → DFW Jul 20, 11:40 UTCJul 20, 12:23 UTC43m
2026-07-20 SKW6339 DFW → SHV Jul 20, 01:17 UTCJul 20, 01:50 UTC33m
2026-07-20 SKW6339 DFW → SHV Jul 20, 01:15 UTCJul 20, 01:50 UTC35m
2026-07-19 SKW4930 MLI → ORD Jul 19, 16:05 UTCJul 19, 16:50 UTC45m
2026-07-19 SKW4930 MLI → ORD Jul 19, 15:58 UTCJul 19, 16:39 UTC41m
2026-07-19 SKW4885 SFO → LAX Jul 19, 04:00 UTCJul 19, 04:35 UTC35m
2026-07-18 SKW4996 - Jul 18, 23:00 UTCJul 19, 00:45 UTC1h 45m
2026-07-18 SKW4996 - Jul 18, 20:15 UTCJul 18, 21:45 UTC1h 30m
2026-07-18 SKW4918 - Jul 18, 17:20 UTCJul 18, 19:10 UTC1h 50m
2026-07-18 SKW4918 GJT → DFW Jul 18, 17:16 UTCJul 18, 19:06 UTC1h 50m
2026-07-18 SKW4918 - Jul 18, 14:30 UTCJul 18, 16:25 UTC1h 55m
2026-07-18 SKW4926 SWO → DFW Jul 18, 11:50 UTCJul 18, 12:30 UTC40m
2026-07-18 SKW4926 SWO → DFW Jul 18, 11:49 UTCJul 18, 12:29 UTC40m
2026-07-18 SKW4961 - Jul 18, 03:15 UTCJul 18, 03:55 UTC40m
2026-07-18 SKW6342 - Jul 18, 00:50 UTCJul 18, 02:00 UTC1h 10m
2026-07-18 SKW6342 BTR → DFW Jul 18, 00:49 UTCJul 18, 01:59 UTC1h 10m
2026-07-17 SKW6342 DFW → BTR Jul 17, 23:10 UTCJul 18, 00:04 UTC55m
2026-07-17 SKW4936 - Jul 17, 20:35 UTCJul 17, 21:20 UTC45m
2026-07-17 SKW4936 - Jul 17, 18:50 UTCJul 17, 19:35 UTC45m
2026-07-17 SKW6340 - Jul 17, 15:10 UTCJul 17, 15:49 UTC40m

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 N612QX page for operator, model, and routing details .

Mode-S A7F7A0 frequently asked

What is Mode-S code A7F7A0?
A7F7A0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N612QX.
Where is Mode-S A7F7A0 registered?
Mode-S code A7F7A0 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 A7F7A0 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 04:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7F7A0, octal 51773640, decimal 11,007,904.
What flights does A7F7A0 operate?
Mode-S A7F7A0 has broadcast 20 distinct callsigns, including SKW6229, SKW6352, SKW6238, SKW5003, SKW6194.