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sensors Mode-S transponder

AD48DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N955SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
AD48DF
Octal
53244337
Decimal
11,356,383
Country
US
Tail
N955SW
Type
CRJ2
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
449
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S AD48DF.

Country allocation

The ICAO 24-bit address AD48DF 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
SKW5110 SkyWest Airlines 9 2026-07-19
SKW5091 - 7 2026-07-22
SKW5067 - 6 2026-06-20
SKW6055 SkyWest Airlines 4 2026-05-04
SKW5335 SkyWest Airlines 4 2026-07-23
SKW5196 - 4 2026-07-01
SKW5141 SkyWest Airlines 4 2026-06-23
SKW5088 - 4 2026-07-18
SKW5047 SkyWest Airlines 4 2026-07-22
SKW5029 - 4 2026-06-22
SKW4698 - 4 2026-07-14
SKW4677 SkyWest Airlines 4 2026-05-19
SKW437F SkyWest Airlines 4 2026-05-22
SKW403G SkyWest Airlines 4 2026-07-18
SKW792R SkyWest Airlines 3 2026-05-28
SKW6082 - 3 2026-07-11
SKW6067 SkyWest Airlines 3 2026-06-12
SKW6022 SkyWest Airlines 3 2026-07-24
SKW5915 - 3 2026-06-19
SKW5888 SkyWest Airlines 3 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5122 ORD → DEC Jul 26, 19:45 UTCJul 26, 20:30 UTC45m
2026-07-26 SKW456R - Jul 26, 18:05 UTCJul 26, 18:50 UTC45m
2026-07-26 SKW5065 MEI → IAH Jul 26, 14:30 UTCJul 26, 16:00 UTC1h 30m
2026-07-26 SKW5038 PLN → ORD Jul 26, 12:25 UTCJul 26, 13:00 UTC35m
2026-07-26 SKW5046 IAD → JST Jul 26, 10:45 UTCJul 26, 11:10 UTC25m
2026-07-26 SKW572U ORD → JST Jul 26, 03:20 UTCJul 26, 04:25 UTC1h 5m
2026-07-26 SKW572U ORD → JST Jul 26, 03:27 UTCJul 26, 04:21 UTC54m
2026-07-25 SKW4633 BOI → LAX Jul 25, 23:00 UTCJul 25, 23:40 UTC40m
2026-07-25 SKW4633 BOI → LAX Jul 25, 22:42 UTCJul 25, 23:28 UTC46m
2026-07-25 SKW5633 LEX → ORD Jul 25, 21:05 UTCJul 25, 21:45 UTC40m
2026-07-25 SKW5633 LEX → ORD Jul 25, 21:09 UTCJul 25, 21:31 UTC22m
2026-07-25 SKW5320 ORD → MKE Jul 25, 17:50 UTCJul 25, 18:30 UTC40m
2026-07-25 SKW5320 ORD → MKE Jul 25, 17:47 UTCJul 25, 18:14 UTC27m
2026-07-25 SKW5839 BFL → DEN Jul 25, 16:25 UTCJul 25, 17:00 UTC35m
2026-07-25 SKW4676 DSM → ORD Jul 25, 13:10 UTCJul 25, 13:55 UTC45m
2026-07-25 SKW5317 ORD → MEM Jul 25, 03:00 UTCJul 25, 03:35 UTC35m
2026-07-24 SKW6013 MKE → ORD Jul 24, 23:40 UTCJul 25, 00:50 UTC1h 10m
2026-07-24 SKW6013 MKE → ORD Jul 24, 23:43 UTCJul 25, 00:36 UTC53m
2026-07-24 SKW503C ORD → DLH Jul 24, 21:05 UTCJul 24, 22:00 UTC55m
2026-07-24 SKW6022 PIA → ORD Jul 24, 19:25 UTCJul 24, 19:40 UTC15m
2026-07-24 SKW6022 PIA → ORD Jul 24, 18:55 UTCJul 24, 19:40 UTC45m
2026-07-24 SKW6022 PIA → ORD Jul 24, 18:26 UTCJul 24, 19:09 UTC43m
2026-07-24 SKW5733 HRL → DEN Jul 24, 17:10 UTCJul 24, 17:40 UTC30m
2026-07-23 SKW5335 PNS → DEN Jul 23, 20:00 UTCJul 23, 21:40 UTC1h 40m
2026-07-23 SKW5335 PNS → DEN Jul 23, 20:00 UTCJul 23, 21:25 UTC1h 25m
2026-07-23 SKW5282 ORD → MSN Jul 23, 17:45 UTCJul 23, 19:10 UTC1h 25m
2026-07-23 SKW5282 ORD → MSN Jul 23, 17:37 UTCJul 23, 19:06 UTC1h 29m
2026-07-22 SKW5047 VCT → IAH Jul 22, 20:55 UTCJul 22, 22:25 UTC1h 30m
2026-07-22 SKW5091 - Jul 22, 18:00 UTCJul 22, 19:40 UTC1h 40m
2026-07-22 SKW5091 IAH → CHA Jul 22, 18:12 UTCJul 22, 19:34 UTC1h 22m
2026-07-22 SKW5803 SHV → IAH Jul 22, 14:10 UTCJul 22, 15:30 UTC1h 20m
2026-07-22 SKW5597 DEN → ASE Jul 22, 00:10 UTCJul 22, 01:20 UTC1h 10m
2026-07-21 SKW5047 VCT → IAH Jul 21, 20:50 UTCJul 21, 22:25 UTC1h 35m
2026-07-21 SKW5047 VCT → IAH Jul 21, 20:58 UTCJul 21, 22:20 UTC1h 22m
2026-07-21 SKW5091 - Jul 21, 18:15 UTCJul 21, 19:55 UTC1h 40m
2026-07-21 SKW5091 IAH → CHA Jul 21, 18:12 UTCJul 21, 19:55 UTC1h 43m
2026-07-21 SKW5129 ORD → CMX Jul 21, 15:52 UTCJul 21, 16:41 UTC49m
2026-07-21 SKW5049 PIB → IAH Jul 21, 13:50 UTCJul 21, 14:40 UTC50m
2026-07-21 SKW5058 VCT → IAH Jul 21, 10:45 UTCJul 21, 11:20 UTC35m
2026-07-21 SKW5058 VCT → IAH Jul 21, 10:41 UTCJul 21, 11:17 UTC36m
2026-07-21 SKW313P - Jul 21, 03:30 UTCJul 21, 03:55 UTC25m
2026-07-21 SKW5530 RDM → SFO Jul 21, 01:00 UTCJul 21, 01:50 UTC50m
2026-07-21 SKW5530 RDM → SFO Jul 21, 01:00 UTCJul 21, 01:47 UTC47m
2026-07-20 SKW5368 - Jul 20, 23:35 UTCJul 21, 00:20 UTC45m
2026-07-20 SKW5094 ORD → FOD Jul 20, 20:55 UTCJul 20, 22:25 UTC1h 30m
2026-07-20 SKW5091 - Jul 20, 18:00 UTCJul 20, 19:45 UTC1h 45m
2026-07-20 SKW5091 IAH → CHA Jul 20, 18:12 UTCJul 20, 19:38 UTC1h 26m
2026-07-20 SKW5069 SLN → IAH Jul 20, 15:05 UTCJul 20, 16:35 UTC1h 30m
2026-07-20 SKW483J IAH → SLN Jul 20, 00:15 UTCJul 20, 01:35 UTC1h 20m
2026-07-19 SKW5047 VCT → IAH Jul 19, 21:00 UTCJul 19, 22:45 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 N955SW page for operator, model, and routing details .

Mode-S AD48DF frequently asked

What is Mode-S code AD48DF?
AD48DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N955SW.
Where is Mode-S AD48DF registered?
Mode-S code AD48DF 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 AD48DF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD48DF, octal 53244337, decimal 11,356,383.
What flights does AD48DF operate?
Mode-S AD48DF has broadcast 20 distinct callsigns, including SKW5110, SKW5091, SKW5067, SKW6055, SKW5335.