Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6F5D7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N548CA · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A6F5D7
Octal
51572727
Decimal
10,941,911
Country
US
Tail
N548CA
Type
CRJ9
Broadcasting now · callsign SKW4089 · 34,050 ft
Flights observed
608
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A6F5D7 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A6F5D7 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
SKW3995 - 17 2026-07-02
SKW4456 SkyWest Airlines 15 2026-06-22
SKW3971 - 15 2026-07-07
SKW3861 - 14 2026-07-06
SKW4032 SkyWest Airlines 12 2026-06-02
SKW3976 - 12 2026-06-22
SKW3559 SkyWest Airlines 11 2026-06-07
SKW3675 - 10 2026-06-22
SKW4103 SkyWest Airlines 9 2026-06-12
SKW4055 SkyWest Airlines 9 2026-06-18
SKW4130 - 8 2026-07-05
SKW3990 - 8 2026-07-12
SKW3965 - 8 2026-06-22
SKW3946 SkyWest Airlines 8 2026-04-29
SKW3877 SkyWest Airlines 8 2026-06-07
SKW3538 SkyWest Airlines 8 2026-06-30
SKW188F - 8 2026-07-13
SKW4440 SkyWest Airlines 7 2026-05-02
SKW4076 SkyWest Airlines 7 2026-04-24
SKW3821 SkyWest Airlines 7 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4089 - Jul 14, 14:25 UTCJul 14, 15:45 UTC1h 20m
2026-07-14 SKW3702 - Jul 14, 11:05 UTCJul 14, 12:10 UTC1h 5m
2026-07-14 SKW3780 - Jul 14, 01:05 UTCJul 14, 02:10 UTC1h 5m
2026-07-13 SKW3948 - Jul 13, 23:10 UTCJul 14, 00:00 UTC50m
2026-07-13 SKW188F - Jul 13, 20:45 UTCJul 13, 21:30 UTC45m
2026-07-13 SKW4089 COS → MSP Jul 13, 17:37 UTCJul 13, 19:11 UTC1h 34m
2026-07-13 SKW4089 COS → MSP Jul 13, 17:25 UTCJul 13, 19:15 UTC1h 50m
2026-07-13 SKW4089 MSP → COS Jul 13, 14:40 UTCJul 13, 16:15 UTC1h 35m
2026-07-13 SKW4460 - Jul 13, 11:40 UTCJul 13, 12:25 UTC45m
2026-07-13 SKW4460 MKE → MSP Jul 13, 11:43 UTCJul 13, 12:24 UTC41m
2026-07-12 SKW4464 - Jul 12, 23:25 UTCJul 13, 00:20 UTC55m
2026-07-12 SKW3865 - Jul 12, 20:35 UTCJul 12, 21:40 UTC1h 5m
2026-07-12 SKW3865 MSP → GRR Jul 12, 18:10 UTCJul 12, 19:15 UTC1h 5m
2026-07-12 SKW3990 - Jul 12, 15:55 UTCJul 12, 16:55 UTC1h 0m
2026-07-12 SKW3990 MSP → GRR Jul 12, 14:05 UTCJul 12, 15:05 UTC1h 0m
2026-07-10 SKW3666 MSP → MSP Jul 10, 15:25 UTCJul 10, 15:50 UTC25m
2026-07-10 SKW3542 - Jul 10, 12:50 UTCJul 10, 14:05 UTC1h 15m
2026-07-10 SKW3541 - Jul 10, 01:30 UTCJul 10, 02:45 UTC1h 15m
2026-07-09 SKW3948 - Jul 9, 22:50 UTCJul 9, 23:40 UTC50m
2026-07-09 SKW188F MSP → OMA Jul 9, 20:57 UTCJul 9, 21:38 UTC41m
2026-07-09 SKW188F MSP → OMA Jul 9, 20:55 UTCJul 9, 21:40 UTC45m
2026-07-09 SKW3534 FSD → MSP Jul 9, 18:40 UTCJul 9, 19:25 UTC45m
2026-07-09 SKW3534 MSP → FSD Jul 9, 16:50 UTCJul 9, 17:30 UTC40m
2026-07-09 SKW4466 - Jul 9, 14:50 UTCJul 9, 15:50 UTC1h 0m
2026-07-09 SKW4466 MKE → MSP Jul 9, 14:51 UTCJul 9, 15:35 UTC44m
2026-07-09 SKW4466 MSP → MKE Jul 9, 12:50 UTCJul 9, 13:40 UTC50m
2026-07-09 SKW4158 MOT → MSP Jul 9, 10:17 UTCJul 9, 11:03 UTC46m
2026-07-09 SKW4154 - Jul 9, 03:00 UTCJul 9, 03:55 UTC55m
2026-07-08 SKW3709 - Jul 8, 23:45 UTCJul 9, 01:50 UTC2h 5m
2026-07-08 SKW3709 MSP → PIT Jul 8, 20:40 UTCJul 8, 22:45 UTC2h 5m
2026-07-08 SKW4144 - Jul 8, 17:55 UTCJul 8, 18:55 UTC1h 0m
2026-07-08 SKW4144 - Jul 8, 15:30 UTCJul 8, 16:25 UTC55m
2026-07-08 SKW3512 - Jul 8, 13:35 UTCJul 8, 14:25 UTC50m
2026-07-08 SKW4024 - Jul 8, 01:40 UTCJul 8, 02:25 UTC45m
2026-07-07 SKW3843 - Jul 7, 21:40 UTCJul 7, 22:25 UTC45m
2026-07-07 SKW3843 GRB → MSP Jul 7, 21:28 UTCJul 7, 22:14 UTC46m
2026-07-07 SKW3843 MSP → GRB Jul 7, 19:40 UTCJul 7, 20:20 UTC40m
2026-07-07 SKW3971 - Jul 7, 17:25 UTCJul 7, 18:25 UTC1h 0m
2026-07-07 SKW3971 RAP → MSP Jul 7, 17:25 UTCJul 7, 18:17 UTC52m
2026-07-07 SKW3971 - Jul 7, 14:50 UTCJul 7, 15:50 UTC1h 0m
2026-07-07 SKW3922 - Jul 7, 13:20 UTCJul 7, 13:50 UTC30m
2026-07-06 SKW3912 ATL → MDT Jul 6, 23:40 UTCJul 7, 00:00 UTC20m
2026-07-06 SKW3861 ATW → MSP Jul 6, 21:25 UTCJul 6, 22:15 UTC50m
2026-07-06 SKW3861 MSP → ATW Jul 6, 19:40 UTCJul 6, 20:25 UTC45m
2026-07-06 SKW3971 - Jul 6, 17:25 UTCJul 6, 18:30 UTC1h 5m
2026-07-06 SKW3971 - Jul 6, 14:40 UTCJul 6, 15:45 UTC1h 5m
2026-07-06 SKW4073 YYZ → MSP Jul 6, 10:55 UTCJul 6, 12:35 UTC1h 40m
2026-07-06 SKW125R SLC → YVR Jul 6, 01:20 UTCJul 6, 02:55 UTC1h 35m
2026-07-05 SKW4130 - Jul 5, 22:40 UTCJul 5, 23:45 UTC1h 5m
2026-07-05 SKW4130 - Jul 5, 20:05 UTCJul 5, 21:00 UTC55m

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 N548CA page for operator, model, and routing details .

Mode-S A6F5D7 frequently asked

What is Mode-S code A6F5D7?
A6F5D7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N548CA.
Where is Mode-S A6F5D7 registered?
Mode-S code A6F5D7 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 A6F5D7 broadcasting right now?
Yes. Mode-S A6F5D7 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6F5D7, octal 51572727, decimal 10,941,911.
What flights does A6F5D7 operate?
Mode-S A6F5D7 has broadcast 20 distinct callsigns, including SKW3995, SKW4456, SKW3971, SKW3861, SKW4032.