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sensors Mode-S transponder

A26F6F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N256SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A26F6F
Octal
50467557
Decimal
10,645,359
Country
US
Tail
N256SY
Type
E75L
Broadcasting now · callsign SKW4146 · 8,450 ft
Flights observed
572
Distinct callsigns
20
Country
US
Last broadcast
29m ago

Current position

A26F6F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A26F6F 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
SKW3915 SkyWest Airlines 14 2026-05-22
SKW4127 - 13 2026-06-22
SKW3999 - 12 2026-06-24
SKW3712 SkyWest Airlines 10 2026-05-22
SKW3956 SkyWest Airlines 9 2026-06-10
SKW3876 - 9 2026-07-10
SKW3806 - 9 2026-06-16
SKW3681 - 9 2026-07-07
SKW4041 SkyWest Airlines 8 2026-06-10
SKW4098 SkyWest Airlines 7 2026-05-22
SKW4063 - 7 2026-06-29
SKW4115 SkyWest Airlines 6 2026-05-22
SKW3945 - 6 2026-07-10
SKW3673 SkyWest Airlines 6 2026-06-05
SKW3669 - 6 2026-07-11
SKW4124 - 5 2026-06-19
SKW4070 SkyWest Airlines 5 2026-06-18
SKW3825 - 5 2026-06-26
SKW3755 SkyWest Airlines 5 2026-06-07
SKW3725 SkyWest Airlines 5 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4146 - Jul 14, 12:30 UTCJul 14, 13:45 UTC1h 15m
2026-07-14 SKW4163 AUS → BNA Jul 14, 01:20 UTCJul 14, 03:05 UTC1h 45m
2026-07-13 SKW3767 ECP → AUS Jul 13, 21:40 UTCJul 13, 23:30 UTC1h 50m
2026-07-13 SKW3767 - Jul 13, 19:10 UTCJul 13, 20:55 UTC1h 45m
2026-07-11 SKW4085 - Jul 11, 19:45 UTCJul 11, 21:50 UTC2h 5m
2026-07-11 SKW4085 - Jul 11, 12:55 UTCJul 11, 16:10 UTC3h 15m
2026-07-11 SKW3669 DEN → AUS Jul 11, 03:45 UTCJul 11, 05:50 UTC2h 5m
2026-07-11 SKW3669 DEN → AUS Jul 11, 03:47 UTCJul 11, 05:47 UTC2h 0m
2026-07-11 SKW3669 AUS → DEN Jul 11, 00:15 UTCJul 11, 02:35 UTC2h 20m
2026-07-10 SKW4016 - Jul 10, 21:15 UTCJul 10, 22:25 UTC1h 10m
2026-07-10 SKW4016 MSY → AUS Jul 10, 21:18 UTCJul 10, 22:16 UTC58m
2026-07-10 SKW141E AUS → MSY Jul 10, 18:47 UTCJul 10, 20:11 UTC1h 24m
2026-07-10 SKW141E AUS → MSY Jul 10, 18:45 UTCJul 10, 20:20 UTC1h 35m
2026-07-10 SKW3876 DEN → AUS Jul 10, 15:50 UTCJul 10, 17:35 UTC1h 45m
2026-07-10 SKW3876 AUS → DEN Jul 10, 12:35 UTCJul 10, 14:25 UTC1h 50m
2026-07-10 SKW4175 - Jul 10, 10:25 UTCJul 10, 11:15 UTC50m
2026-07-10 SKW4067 - Jul 10, 03:55 UTCJul 10, 04:35 UTC40m
2026-07-10 SKW3945 - Jul 10, 00:10 UTCJul 10, 02:00 UTC1h 50m
2026-07-09 SKW3945 AUS → BNA Jul 9, 20:40 UTCJul 9, 22:30 UTC1h 50m
2026-07-09 SKW3955 SLC → AUS Jul 9, 17:15 UTCJul 9, 19:45 UTC2h 30m
2026-07-09 SKW4029 - Jul 9, 13:40 UTCJul 9, 15:40 UTC2h 0m
2026-07-08 SKW3791 MSP → OKC Jul 8, 23:25 UTCJul 9, 01:05 UTC1h 40m
2026-07-08 SKW3848 - Jul 8, 18:55 UTCJul 8, 19:55 UTC1h 0m
2026-07-08 SKW4114 - Jul 8, 15:55 UTCJul 8, 17:40 UTC1h 45m
2026-07-08 SKW4069 SBA → SLC Jul 8, 12:50 UTCJul 8, 14:20 UTC1h 30m
2026-07-08 SKW3803 SLC → SBA Jul 8, 03:15 UTCJul 8, 04:50 UTC1h 35m
2026-07-07 SKW3896 - Jul 7, 23:00 UTCJul 8, 01:10 UTC2h 10m
2026-07-07 SKW3896 - Jul 7, 19:45 UTCJul 7, 21:35 UTC1h 50m
2026-07-07 SKW3681 BUR → SLC Jul 7, 17:00 UTCJul 7, 18:25 UTC1h 25m
2026-07-07 SKW3681 BUR → SLC Jul 7, 16:57 UTCJul 7, 18:20 UTC1h 23m
2026-07-07 SKW3681 SLC → BUR Jul 7, 14:20 UTCJul 7, 16:00 UTC1h 40m
2026-07-07 SKW3856 - Jul 7, 03:40 UTCJul 7, 05:00 UTC1h 20m
2026-07-06 SKW3856 - Jul 6, 23:35 UTCJul 7, 01:10 UTC1h 35m
2026-07-06 SKW3908 AUS → SLC Jul 6, 19:50 UTCJul 6, 22:15 UTC2h 25m
2026-07-06 SKW3960 - Jul 6, 16:40 UTCJul 6, 18:35 UTC1h 55m
2026-07-06 SKW3960 BNA → AUS Jul 6, 16:38 UTCJul 6, 18:34 UTC1h 56m
2026-07-06 SKW3960 AUS → BNA Jul 6, 13:35 UTCJul 6, 15:20 UTC1h 45m
2026-07-06 SKW3669 - Jul 6, 02:55 UTCJul 6, 04:45 UTC1h 50m
2026-07-06 SKW3669 DEN → AUS Jul 6, 03:00 UTCJul 6, 04:40 UTC1h 40m
2026-07-05 SKW3669 AUS → DEN Jul 5, 23:40 UTCJul 6, 01:55 UTC2h 15m
2026-07-05 SKW4085 - Jul 5, 20:05 UTCJul 5, 22:40 UTC2h 35m
2026-07-05 SKW4085 - Jul 5, 14:30 UTCJul 5, 17:45 UTC3h 15m
2026-07-05 SKW4015 - Jul 5, 11:30 UTCJul 5, 13:35 UTC2h 5m
2026-07-05 SKW3731 AUS → IND Jul 5, 02:10 UTCJul 5, 04:20 UTC2h 10m
2026-07-04 SKW4028 - Jul 4, 19:45 UTCJul 4, 22:30 UTC2h 45m
2026-07-04 SKW4028 AUS → CMH Jul 4, 14:30 UTCJul 4, 17:00 UTC2h 30m
2026-07-04 SKW4088 - Jul 4, 11:55 UTCJul 4, 13:15 UTC1h 20m
2026-07-04 SKW3952 - Jul 4, 02:25 UTCJul 4, 03:45 UTC1h 20m
2026-07-03 SKW3612 - Jul 3, 22:40 UTCJul 4, 01:10 UTC2h 30m
2026-07-03 SKW3612 - Jul 3, 19:00 UTCJul 3, 21:25 UTC2h 25m

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 N256SY page for operator, model, and routing details .

Mode-S A26F6F frequently asked

What is Mode-S code A26F6F?
A26F6F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N256SY.
Where is Mode-S A26F6F registered?
Mode-S code A26F6F 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 A26F6F broadcasting right now?
Yes. Mode-S A26F6F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A26F6F, octal 50467557, decimal 10,645,359.
What flights does A26F6F operate?
Mode-S A26F6F has broadcast 20 distinct callsigns, including SKW3915, SKW4127, SKW3999, SKW3712, SKW3956.