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sensors Mode-S transponder

A0FA70

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N162PQ · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A0FA70
Octal
50175160
Decimal
10,549,872
Country
US
Tail
N162PQ
Type
CRJ9
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
702
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S A0FA70.

Country allocation

The ICAO 24-bit address A0FA70 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
SKW4040 SkyWest Airlines 18 2026-07-24
SKW3995 SkyWest Airlines 18 2026-07-26
SKW3976 SkyWest Airlines 14 2026-07-21
SKW4065 - 12 2026-07-15
SKW4055 SkyWest Airlines 12 2026-07-24
SKW3965 SkyWest Airlines 12 2026-07-21
SKW3538 SkyWest Airlines 12 2026-06-19
SKW4103 SkyWest Airlines 10 2026-06-22
SKW4051 SkyWest Airlines 10 2026-06-05
SKW3971 SkyWest Airlines 10 2026-06-13
SKW3889 - 10 2026-07-10
SKW3868 SkyWest Airlines 10 2026-06-15
SKW4154 - 9 2026-07-03
SKW3920 - 9 2026-07-03
SKW3861 - 9 2026-07-02
SKW3626 SkyWest Airlines 9 2026-07-24
SKW3559 SkyWest Airlines 9 2026-04-24
SKW4140 - 8 2026-07-04
SKW4136 SkyWest Airlines 8 2026-07-26
SKW4066 - 8 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW188F MSP → OMA Jul 26, 20:50 UTCJul 26, 21:35 UTC45m
2026-07-26 SKW3995 IND → DTW Jul 26, 18:05 UTCJul 26, 19:00 UTC55m
2026-07-26 SKW3995 IND → DTW Jul 26, 18:00 UTCJul 26, 18:55 UTC55m
2026-07-26 SKW3995 IND → DTW Jul 26, 15:40 UTCJul 26, 16:25 UTC45m
2026-07-26 SKW4136 SJC → LAX Jul 26, 13:05 UTCJul 26, 13:50 UTC45m
2026-07-25 SKW4143 DTW → BUF Jul 25, 23:35 UTCJul 26, 00:35 UTC1h 0m
2026-07-25 SKW4089 SFO → SEA Jul 25, 17:30 UTCJul 25, 19:20 UTC1h 50m
2026-07-25 SKW4089 SFO → SEA Jul 25, 14:35 UTCJul 25, 16:20 UTC1h 45m
2026-07-25 SKW4460 MKE → MSP Jul 25, 11:45 UTCJul 25, 12:40 UTC55m
2026-07-25 SKW3724 STL → LGA Jul 25, 00:10 UTCJul 25, 00:55 UTC45m
2026-07-25 SKW3724 STL → LGA Jul 25, 00:24 UTCJul 25, 00:54 UTC30m
2026-07-24 SKW4040 ATL → HPN Jul 24, 21:20 UTCJul 24, 22:55 UTC1h 35m
2026-07-24 SKW4040 ATL → HPN Jul 24, 18:30 UTCJul 24, 19:55 UTC1h 25m
2026-07-24 SKW4055 SJC → SEA Jul 24, 15:50 UTCJul 24, 17:20 UTC1h 30m
2026-07-24 SKW4055 SJC → SEA Jul 24, 12:55 UTCJul 24, 14:35 UTC1h 40m
2026-07-24 SKW3626 MDW → MSP Jul 24, 10:05 UTCJul 24, 11:40 UTC1h 35m
2026-07-24 SKW3795 MSP → OKC Jul 24, 01:40 UTCJul 24, 03:05 UTC1h 25m
2026-07-23 SKW4040 ATL → HPN Jul 23, 21:15 UTCJul 23, 22:50 UTC1h 35m
2026-07-23 SKW4040 ATL → HPN Jul 23, 21:16 UTCJul 23, 22:43 UTC1h 27m
2026-07-23 SKW4040 ATL → HPN Jul 23, 18:30 UTCJul 23, 19:50 UTC1h 20m
2026-07-23 SKW4055 SJC → SEA Jul 23, 15:30 UTCJul 23, 17:00 UTC1h 30m
2026-07-23 SKW4055 SJC → SEA Jul 23, 13:00 UTCJul 23, 14:25 UTC1h 25m
2026-07-23 SKW3626 MDW → MSP Jul 23, 10:05 UTCJul 23, 11:40 UTC1h 35m
2026-07-23 SKW3795 MSP → OKC Jul 23, 01:40 UTCJul 23, 03:05 UTC1h 25m
2026-07-22 SKW4096 SMF → SEA Jul 22, 21:15 UTCJul 22, 22:30 UTC1h 15m
2026-07-22 SKW4096 SMF → SEA Jul 22, 18:50 UTCJul 22, 19:55 UTC1h 5m
2026-07-22 SKW4440 - Jul 22, 16:25 UTCJul 22, 17:10 UTC45m
2026-07-22 SKW4440 - Jul 22, 14:10 UTCJul 22, 15:00 UTC50m
2026-07-22 SKW3665 BOI → SLC Jul 22, 12:10 UTCJul 22, 13:05 UTC55m
2026-07-22 SKW3665 BOI → SLC Jul 22, 12:12 UTCJul 22, 13:00 UTC48m
2026-07-22 SKW3544 MSP → IAD Jul 22, 01:15 UTCJul 22, 02:10 UTC55m
2026-07-21 SKW3965 ATL → ABY Jul 21, 23:10 UTCJul 22, 00:00 UTC50m
2026-07-21 SKW3965 ATL → ABY Jul 21, 21:30 UTCJul 21, 22:00 UTC30m
2026-07-21 SKW3976 SDF → MSP Jul 21, 18:40 UTCJul 21, 19:25 UTC45m
2026-07-21 SKW3976 SDF → MSP Jul 21, 16:40 UTCJul 21, 17:15 UTC35m
2026-07-21 SKW4123 - Jul 21, 13:30 UTCJul 21, 14:30 UTC1h 0m
2026-07-21 SKW4123 SYR → DTW Jul 21, 13:25 UTCJul 21, 14:28 UTC1h 3m
2026-07-21 SKW4123 - Jul 21, 11:15 UTCJul 21, 12:00 UTC45m
2026-07-20 SKW3642 - Jul 20, 20:55 UTCJul 20, 21:35 UTC40m
2026-07-20 SKW3642 BUF → DTW Jul 20, 21:08 UTCJul 20, 21:35 UTC27m
2026-07-20 SKW3642 - Jul 20, 18:50 UTCJul 20, 19:35 UTC45m
2026-07-20 SKW3636 - Jul 20, 16:55 UTCJul 20, 17:35 UTC40m
2026-07-20 SKW3636 - Jul 20, 14:35 UTCJul 20, 15:15 UTC40m
2026-07-20 SKW3977 DTW → MSN Jul 20, 11:45 UTCJul 20, 12:40 UTC55m
2026-07-20 SKW4013 - Jul 20, 01:00 UTCJul 20, 01:45 UTC45m
2026-07-20 SKW4013 DTW → LEX Jul 20, 01:02 UTCJul 20, 01:35 UTC33m
2026-07-19 SKW4040 ATL → HPN Jul 19, 22:20 UTCJul 19, 23:50 UTC1h 30m
2026-07-19 SKW4040 ATL → HPN Jul 19, 18:35 UTCJul 19, 19:55 UTC1h 20m
2026-07-19 SKW3500 - Jul 19, 14:30 UTCJul 19, 14:55 UTC25m
2026-07-19 SKW3500 - Jul 19, 13:10 UTCJul 19, 13:40 UTC30m

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 N162PQ page for operator, model, and routing details .

Mode-S A0FA70 frequently asked

What is Mode-S code A0FA70?
A0FA70 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N162PQ.
Where is Mode-S A0FA70 registered?
Mode-S code A0FA70 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 A0FA70 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0FA70, octal 50175160, decimal 10,549,872.
What flights does A0FA70 operate?
Mode-S A0FA70 has broadcast 20 distinct callsigns, including SKW4040, SKW3995, SKW3976, SKW4065, SKW4055.