Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AA720F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N772SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
AA720F
Octal
52471017
Decimal
11,170,319
Country
US
Tail
N772SK
Type
CRJ7
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
670
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S AA720F.

Country allocation

The ICAO 24-bit address AA720F 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
SKW6413 SkyWest Airlines 15 2026-07-25
SKW6343 - 13 2026-06-22
SKW4887 SkyWest Airlines 11 2026-06-04
SKW6446 - 9 2026-07-10
SKW6410 - 9 2026-07-07
SKW6348 - 9 2026-07-17
SKW6324 - 9 2026-07-16
SKW6311 SkyWest Airlines 9 2026-07-22
SKW6203 SkyWest Airlines 9 2026-07-26
SKW6387 SkyWest Airlines 8 2026-06-05
SKW6256 SkyWest Airlines 8 2026-07-24
SKW4919 SkyWest Airlines 8 2026-06-11
SKW238P SkyWest Airlines 8 2026-07-23
SKW6337 SkyWest Airlines 7 2026-07-26
SKW6288 SkyWest Airlines 7 2026-07-26
SKW6249 - 7 2026-07-03
SKW4910 - 7 2026-07-17
SKW6423 SkyWest Airlines 6 2026-05-09
SKW6383 SkyWest Airlines 6 2026-06-29
SKW6342 SkyWest Airlines 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6337 PHX → SEA Jul 26, 20:50 UTCJul 26, 21:25 UTC35m
2026-07-26 SKW6288 MHK → ORD Jul 26, 18:30 UTCJul 26, 19:40 UTC1h 10m
2026-07-26 SKW6288 MHK → ORD Jul 26, 16:10 UTCJul 26, 17:10 UTC1h 0m
2026-07-26 SKW6203 ASE → ORD Jul 26, 14:05 UTCJul 26, 14:40 UTC35m
2026-07-26 SKW6203 ASE → ORD Jul 26, 14:02 UTCJul 26, 14:35 UTC33m
2026-07-26 SKW6206 PHX → SFO Jul 26, 12:40 UTCJul 26, 13:20 UTC40m
2026-07-26 SKW6421 DFW → PVU Jul 26, 01:25 UTCJul 26, 02:20 UTC55m
2026-07-26 SKW6421 DFW → PVU Jul 26, 01:22 UTCJul 26, 02:14 UTC52m
2026-07-25 SKW6421 DFW → PVU Jul 25, 23:55 UTCJul 26, 00:35 UTC40m
2026-07-25 SKW6413 SJC → PHX Jul 25, 18:05 UTCJul 25, 18:55 UTC50m
2026-07-25 SKW6413 SJC → PHX Jul 25, 18:00 UTCJul 25, 18:46 UTC46m
2026-07-25 SKW6413 SJC → PHX Jul 25, 16:35 UTCJul 25, 17:15 UTC40m
2026-07-25 SKW6340 OKC → DFW Jul 25, 13:50 UTCJul 25, 14:40 UTC50m
2026-07-25 SKW6340 OKC → DFW Jul 25, 13:51 UTCJul 25, 14:36 UTC45m
2026-07-25 SKW6284 LAX → SFO Jul 25, 03:05 UTCJul 25, 03:40 UTC35m
2026-07-25 SKW6284 LAX → SFO Jul 25, 03:00 UTCJul 25, 03:39 UTC39m
2026-07-25 SKW6342 SJC → PHX Jul 25, 00:45 UTCJul 25, 01:55 UTC1h 10m
2026-07-25 SKW6342 SJC → PHX Jul 25, 00:45 UTCJul 25, 01:45 UTC1h 0m
2026-07-24 SKW6342 SJC → PHX Jul 24, 22:50 UTCJul 24, 23:50 UTC1h 0m
2026-07-24 SKW6256 ORD → MSN Jul 24, 20:50 UTCJul 24, 21:30 UTC40m
2026-07-24 SKW6256 ORD → MSN Jul 24, 21:03 UTCJul 24, 21:21 UTC18m
2026-07-24 SKW6256 ORD → MSN Jul 24, 19:15 UTCJul 24, 20:00 UTC45m
2026-07-24 SKW6296 LAX → SFO Jul 24, 14:00 UTCJul 24, 18:00 UTC4h 0m
2026-07-24 SKW6511 PHX → STS Jul 24, 11:25 UTCJul 24, 12:15 UTC50m
2026-07-24 SKW6339 PHX → SJC Jul 24, 01:10 UTCJul 24, 01:45 UTC35m
2026-07-23 SKW6337 PHX → SEA Jul 23, 23:00 UTCJul 23, 23:40 UTC40m
2026-07-23 SKW6337 PHX → SEA Jul 23, 23:03 UTCJul 23, 23:39 UTC36m
2026-07-23 SKW6337 PHX → SEA Jul 23, 20:45 UTCJul 23, 21:15 UTC30m
2026-07-23 SKW6413 SJC → PHX Jul 23, 18:05 UTCJul 23, 18:50 UTC45m
2026-07-23 SKW6413 SJC → PHX Jul 23, 18:01 UTCJul 23, 18:48 UTC47m
2026-07-23 SKW6413 SJC → PHX Jul 23, 16:20 UTCJul 23, 17:05 UTC45m
2026-07-23 SKW6203 ASE → ORD Jul 23, 13:35 UTCJul 23, 14:10 UTC35m
2026-07-23 SKW238P PHX → OKC Jul 23, 02:19 UTCJul 23, 03:54 UTC1h 35m
2026-07-23 SKW238P PHX → OKC Jul 23, 02:10 UTCJul 23, 04:00 UTC1h 50m
2026-07-22 SKW6311 LAX → SFO Jul 22, 22:20 UTCJul 22, 23:30 UTC1h 10m
2026-07-22 SKW6311 LAX → SFO Jul 22, 20:10 UTCJul 22, 21:25 UTC1h 15m
2026-07-22 SKW6392 OKC → PHX Jul 22, 14:05 UTCJul 22, 15:45 UTC1h 40m
2026-07-22 SKW6392 OKC → PHX Jul 22, 14:09 UTCJul 22, 16:00 UTC1h 51m
2026-07-22 SKW6206 PHX → SFO Jul 22, 12:35 UTCJul 22, 13:05 UTC30m
2026-07-21 SKW6295 PHX → SFO Jul 21, 23:45 UTCJul 22, 00:45 UTC1h 0m
2026-07-21 SKW6295 PHX → SFO Jul 21, 21:15 UTCJul 21, 22:35 UTC1h 20m
2026-07-21 SKW6288 MHK → ORD Jul 21, 18:15 UTCJul 21, 19:30 UTC1h 15m
2026-07-21 SKW6288 MHK → ORD Jul 21, 18:17 UTCJul 21, 19:19 UTC1h 2m
2026-07-21 SKW6288 MHK → ORD Jul 21, 16:15 UTCJul 21, 17:10 UTC55m
2026-07-21 SKW6203 ASE → ORD Jul 21, 13:35 UTCJul 21, 14:10 UTC35m
2026-07-21 SKW238P PHX → OKC Jul 21, 02:30 UTCJul 21, 04:45 UTC2h 15m
2026-07-20 SKW6354 ORD → PVD Jul 20, 23:55 UTCJul 21, 01:35 UTC1h 40m
2026-07-20 SKW6354 ORD → PVD Jul 20, 20:50 UTCJul 20, 22:15 UTC1h 25m
2026-07-20 SKW4986 ORD → ICT Jul 20, 18:55 UTCJul 20, 19:20 UTC25m
2026-07-20 SKW4986 ORD → ICT Jul 20, 17:15 UTCJul 20, 17:40 UTC25m

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 N772SK page for operator, model, and routing details .

Mode-S AA720F frequently asked

What is Mode-S code AA720F?
AA720F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N772SK.
Where is Mode-S AA720F registered?
Mode-S code AA720F 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 AA720F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA720F, octal 52471017, decimal 11,170,319.
What flights does AA720F operate?
Mode-S AA720F has broadcast 20 distinct callsigns, including SKW6413, SKW6343, SKW4887, SKW6446, SKW6410.