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sensors Mode-S transponder

AA25A6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N753EV · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
AA25A6
Octal
52422646
Decimal
11,150,758
Country
US
Tail
N753EV
Type
CRJ7
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
598
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S AA25A6.

Country allocation

The ICAO 24-bit address AA25A6 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
SKW5598 SkyWest Airlines 8 2026-07-23
SKW5402 - 8 2026-06-22
SKW5869 - 7 2026-07-14
SKW5606 SkyWest Airlines 7 2026-05-21
SKW4691 - 7 2026-07-08
SKW5977 - 6 2026-07-15
SKW5896 - 6 2026-07-14
SKW5805 SkyWest Airlines 6 2026-07-20
SKW5723 - 6 2026-06-17
SKW5661 SkyWest Airlines 6 2026-07-26
SKW5609 - 6 2026-07-08
SKW5556 SkyWest Airlines 6 2026-07-26
SKW5495 - 6 2026-07-04
SKW4731 SkyWest Airlines 6 2026-07-26
SKW6031 - 5 2026-07-18
SKW5912 SkyWest Airlines 5 2026-07-21
SKW5746 SkyWest Airlines 5 2026-05-09
SKW5612 SkyWest Airlines 5 2026-05-16
SKW5432 SkyWest Airlines 5 2026-05-18
SKW5377 - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5556 PSC → SFO Jul 26, 19:50 UTCJul 26, 20:20 UTC30m
2026-07-26 SKW5661 PHL → ORD Jul 26, 16:35 UTCJul 26, 17:25 UTC50m
2026-07-26 SKW4731 DEN → SAF Jul 26, 14:35 UTCJul 26, 15:15 UTC40m
2026-07-26 SKW4738 SLC → ORD Jul 26, 11:20 UTCJul 26, 12:35 UTC1h 15m
2026-07-25 SKW4734 DEN → COS Jul 25, 21:05 UTCJul 25, 22:00 UTC55m
2026-07-25 SKW5229 SFO → TUS Jul 25, 18:45 UTCJul 25, 19:55 UTC1h 10m
2026-07-25 SKW5235 IAH → GDL Jul 25, 15:50 UTCJul 25, 16:55 UTC1h 5m
2026-07-25 SKW5235 IAH → GDL Jul 25, 15:57 UTCJul 25, 17:11 UTC1h 14m
2026-07-25 SKYW4677 - Jul 25, 14:00 UTCJul 25, 14:20 UTC20m
2026-07-25 SKW5669 MAF → IAH Jul 25, 02:10 UTCJul 25, 02:30 UTC20m
2026-07-24 SKW4719 COS → DEN Jul 24, 23:25 UTCJul 24, 23:45 UTC20m
2026-07-24 SKW5546 LEX → ORD Jul 24, 21:50 UTCJul 24, 22:05 UTC15m
2026-07-24 SKW5319 GEG → SFO Jul 24, 17:00 UTCJul 24, 18:20 UTC1h 20m
2026-07-24 SKW5975 DEN → ATL Jul 24, 14:00 UTCJul 24, 15:15 UTC1h 15m
2026-07-24 SKW5794 AVL → ORD Jul 24, 11:20 UTCJul 24, 12:45 UTC1h 25m
2026-07-24 SKW5794 AVL → ORD Jul 24, 11:17 UTCJul 24, 12:44 UTC1h 27m
2026-07-24 SKW5252 FAT → LAX Jul 24, 02:55 UTCJul 24, 04:05 UTC1h 10m
2026-07-24 SKW5666 MCI → SFO Jul 24, 00:45 UTCJul 24, 01:45 UTC1h 0m
2026-07-23 SKW5950 ORD → SDF Jul 23, 20:10 UTCJul 23, 20:50 UTC40m
2026-07-23 SKW5825 SFO → BOI Jul 23, 17:20 UTCJul 23, 18:25 UTC1h 5m
2026-07-23 SKW5825 SFO → BOI Jul 23, 17:11 UTCJul 23, 18:19 UTC1h 8m
2026-07-23 SKW5215 LGA → ORD Jul 23, 14:20 UTCJul 23, 15:35 UTC1h 15m
2026-07-23 SKW5598 ORD → MLI Jul 23, 11:45 UTCJul 23, 12:10 UTC25m
2026-07-23 SKW5539 ORD → SLC Jul 23, 03:45 UTCJul 23, 04:10 UTC25m
2026-07-23 SKW5653 FAT → SFO Jul 23, 01:05 UTCJul 23, 01:55 UTC50m
2026-07-22 SKW5555 ORD → OKC Jul 22, 23:45 UTCJul 23, 00:05 UTC20m
2026-07-22 SKW5436 TYS → ORD Jul 22, 21:15 UTCJul 22, 22:05 UTC50m
2026-07-22 SKW393H ORD → CAK Jul 22, 19:20 UTCJul 22, 19:40 UTC20m
2026-07-22 SKW5399 BWI → LGA Jul 22, 16:05 UTCJul 22, 16:45 UTC40m
2026-07-22 SKW5842 - Jul 22, 14:40 UTCJul 22, 15:00 UTC20m
2026-07-22 SKW5842 ORD → MKE Jul 22, 14:19 UTCJul 22, 14:55 UTC36m
2026-07-22 SKW5598 ORD → MLI Jul 22, 12:05 UTCJul 22, 12:35 UTC30m
2026-07-22 SKW5539 ORD → SLC Jul 22, 04:15 UTCJul 22, 04:30 UTC15m
2026-07-21 SKW5289 - Jul 21, 22:30 UTCJul 22, 00:30 UTC2h 0m
2026-07-21 SKW5573 RDM → SFO Jul 21, 19:25 UTCJul 21, 20:50 UTC1h 25m
2026-07-21 SKW5912 LNK → ORD Jul 21, 16:08 UTCJul 21, 17:15 UTC1h 7m
2026-07-21 SKW5912 LNK → ORD Jul 21, 16:05 UTCJul 21, 17:25 UTC1h 20m
2026-07-21 SKW5826 SFO → EGE Jul 21, 14:00 UTCJul 21, 15:00 UTC1h 0m
2026-07-21 SKW5935 ICT → IAH Jul 21, 11:01 UTCJul 21, 12:16 UTC1h 15m
2026-07-21 SKW5237 GRB → ORD Jul 21, 00:45 UTCJul 21, 12:20 UTC11h 35m
2026-07-20 SKW5805 SNA → SFO Jul 20, 22:10 UTCJul 20, 22:45 UTC35m
2026-07-20 SKW5805 SNA → SFO Jul 20, 21:47 UTCJul 20, 22:40 UTC53m
2026-07-20 SKW5556 PSC → SFO Jul 20, 19:35 UTCJul 20, 20:05 UTC30m
2026-07-20 SKW5661 PHL → ORD Jul 20, 16:45 UTCJul 20, 17:40 UTC55m
2026-07-20 SKW4731 DEN → SAF Jul 20, 14:45 UTCJul 20, 15:20 UTC35m
2026-07-20 SKW5866 LNK → DEN Jul 20, 11:35 UTCJul 20, 12:45 UTC1h 10m
2026-07-20 SKW5824 ORD → FNT Jul 20, 03:15 UTCJul 20, 04:15 UTC1h 0m
2026-07-20 SKW5353 SFO → RDD Jul 20, 00:25 UTCJul 20, 01:35 UTC1h 10m
2026-07-19 SKW4776 ACV → SFO Jul 19, 21:55 UTCJul 19, 22:55 UTC1h 0m
2026-07-19 SKW4776 ACV → SFO Jul 19, 21:50 UTCJul 19, 23:00 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 N753EV page for operator, model, and routing details .

Mode-S AA25A6 frequently asked

What is Mode-S code AA25A6?
AA25A6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N753EV.
Where is Mode-S AA25A6 registered?
Mode-S code AA25A6 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 AA25A6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA25A6, octal 52422646, decimal 11,150,758.
What flights does AA25A6 operate?
Mode-S AA25A6 has broadcast 20 distinct callsigns, including SKW5598, SKW5402, SKW5869, SKW5606, SKW4691.