Apparatus

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sensors Mode-S transponder

A70E7A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N554CA · BOMBARDIER Regional Jet CRJ-900 · operated by DELTA AIR LINES INC

Hex
A70E7A
Octal
51607172
Decimal
10,948,218
Country
US
Tail
N554CA
Type
CRJ9
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
708
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A70E7A.

Country allocation

The ICAO 24-bit address A70E7A 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
SKW3861 - 25 2026-07-07
SKW3990 SkyWest Airlines 20 2026-07-22
SKW3886 SkyWest Airlines 13 2026-07-26
SKW3864 - 13 2026-07-18
SKW4103 - 12 2026-07-15
SKW4032 SkyWest Airlines 12 2026-06-05
SKW3995 SkyWest Airlines 12 2026-07-21
SKW3851 SkyWest Airlines 12 2026-07-23
SKW3835 SkyWest Airlines 12 2026-07-26
SKW3928 SkyWest Airlines 11 2026-05-18
SKW3783 SkyWest Airlines 11 2026-07-20
SKW3595 - 11 2026-07-11
SKW4073 - 10 2026-07-08
SKW3843 - 10 2026-06-17
SKW3920 - 9 2026-07-20
SKW3885 SkyWest Airlines 9 2026-05-28
SKW3868 - 9 2026-06-21
SKW3840 - 9 2026-07-15
SKW3836 SkyWest Airlines 9 2026-06-21
SKW3807 SkyWest Airlines 9 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW3865 SJC → SEA Jul 26, 21:00 UTCJul 26, 22:10 UTC1h 10m
2026-07-26 SKW3865 SJC → SEA Jul 26, 19:00 UTCJul 26, 20:00 UTC1h 0m
2026-07-26 SKW3831 MSP → OMA Jul 26, 16:35 UTCJul 26, 17:25 UTC50m
2026-07-26 SKW3831 MSP → OMA Jul 26, 16:40 UTCJul 26, 17:17 UTC37m
2026-07-26 SKW3831 MSP → OMA Jul 26, 14:55 UTCJul 26, 15:40 UTC45m
2026-07-26 SKW3835 FAR → MSP Jul 26, 11:30 UTCJul 26, 12:35 UTC1h 5m
2026-07-26 SKW3835 FAR → MSP Jul 26, 11:23 UTCJul 26, 12:35 UTC1h 12m
2026-07-26 SKW3886 LGA → MKE Jul 26, 01:20 UTCJul 26, 02:10 UTC50m
2026-07-26 SKW3886 LGA → MKE Jul 26, 01:21 UTCJul 26, 02:10 UTC49m
2026-07-25 SKW3849 SLC → TWF Jul 25, 21:20 UTCJul 25, 22:05 UTC45m
2026-07-25 SKW3849 SLC → TWF Jul 25, 19:35 UTCJul 25, 20:15 UTC40m
2026-07-25 SKW4090 MOT → MSP Jul 25, 16:15 UTCJul 25, 17:05 UTC50m
2026-07-25 SKW4090 MOT → MSP Jul 25, 14:10 UTCJul 25, 14:55 UTC45m
2026-07-25 SKW3835 FAR → MSP Jul 25, 11:45 UTCJul 25, 12:55 UTC1h 10m
2026-07-25 SKW3886 LGA → MKE Jul 25, 01:25 UTCJul 25, 02:20 UTC55m
2026-07-24 SKW4167 MSP → RST Jul 24, 21:25 UTCJul 24, 22:40 UTC1h 15m
2026-07-24 SKW4167 MSP → RST Jul 24, 19:00 UTCJul 24, 20:15 UTC1h 15m
2026-07-24 SKW4066 MSP → BIS Jul 24, 16:40 UTCJul 24, 17:25 UTC45m
2026-07-24 SKW4066 MSP → BIS Jul 24, 14:15 UTCJul 24, 15:10 UTC55m
2026-07-24 SKW3702 OMA → LGA Jul 24, 11:10 UTCJul 24, 12:25 UTC1h 15m
2026-07-24 SKW3780 CLT → DTW Jul 24, 01:20 UTCJul 24, 02:12 UTC52m
2026-07-24 SKW3780 CLT → DTW Jul 24, 01:15 UTCJul 24, 02:10 UTC55m
2026-07-23 SKW3851 LAX → SJC Jul 23, 22:40 UTCJul 23, 23:35 UTC55m
2026-07-23 SKW3851 LAX → SJC Jul 23, 20:00 UTCJul 23, 21:10 UTC1h 10m
2026-07-23 SKW4102 MKE → LGA Jul 23, 17:30 UTCJul 23, 18:20 UTC50m
2026-07-23 SKW4102 MKE → LGA Jul 23, 15:50 UTCJul 23, 16:25 UTC35m
2026-07-23 SKW3512 BOS → MKE Jul 23, 13:10 UTCJul 23, 14:00 UTC50m
2026-07-22 SKW4024 IND → DTW Jul 22, 23:45 UTCJul 23, 00:30 UTC45m
2026-07-22 SKW3865 GRR → MSP Jul 22, 20:15 UTCJul 22, 21:25 UTC1h 10m
2026-07-22 SKW3865 MSP → GRR Jul 22, 18:15 UTCJul 22, 19:10 UTC55m
2026-07-22 SKW3990 TVC → DTW Jul 22, 15:40 UTCJul 22, 16:45 UTC1h 5m
2026-07-22 SKW3990 TVC → DTW Jul 22, 13:35 UTCJul 22, 14:30 UTC55m
2026-07-22 SKW4140 DTW → YYZ Jul 22, 11:30 UTCJul 22, 12:00 UTC30m
2026-07-22 SKW4140 DTW → YYZ Jul 22, 11:26 UTCJul 22, 11:59 UTC33m
2026-07-22 SKW4003 DTW → BTV Jul 22, 01:35 UTCJul 22, 02:20 UTC45m
2026-07-21 SKW4130 PDX → SEA Jul 21, 22:50 UTCJul 21, 23:40 UTC50m
2026-07-21 SKW4130 PDX → SEA Jul 21, 22:45 UTCJul 21, 23:30 UTC45m
2026-07-21 SKW4130 PDX → SEA Jul 21, 20:20 UTCJul 21, 21:20 UTC1h 0m
2026-07-21 SKW3995 IND → DTW Jul 21, 17:50 UTCJul 21, 18:50 UTC1h 0m
2026-07-21 SKW3995 IND → DTW Jul 21, 15:35 UTCJul 21, 16:15 UTC40m
2026-07-21 SKW3927 BTV → DTW Jul 21, 13:20 UTCJul 21, 14:20 UTC1h 0m
2026-07-21 SKW3714 SLC → LGB Jul 21, 03:10 UTCJul 21, 04:15 UTC1h 5m
2026-07-20 SKW3783 MSP → FWA Jul 20, 23:05 UTCJul 21, 02:15 UTC3h 9m
2026-07-20 SKW3783 MSP → FWA Jul 20, 19:55 UTCJul 20, 21:45 UTC1h 50m
2026-07-20 SKW3920 GRB → MSP Jul 20, 17:10 UTCJul 20, 18:00 UTC50m
2026-07-20 SKW129W MSP → GRB Jul 20, 15:25 UTCJul 20, 16:05 UTC40m
2026-07-20 SKW3927 BTV → DTW Jul 20, 13:10 UTCJul 20, 14:05 UTC55m
2026-07-20 SKW3714 - Jul 20, 03:00 UTCJul 20, 04:05 UTC1h 5m
2026-07-19 SKW3783 IAD → MSP Jul 19, 23:00 UTCJul 20, 01:15 UTC2h 15m
2026-07-19 SKW3783 IAD → MSP Jul 19, 23:06 UTCJul 20, 01:07 UTC2h 1m

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 N554CA page for operator, model, and routing details .

Mode-S A70E7A frequently asked

What is Mode-S code A70E7A?
A70E7A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N554CA.
Where is Mode-S A70E7A registered?
Mode-S code A70E7A 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 A70E7A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A70E7A, octal 51607172, decimal 10,948,218.
What flights does A70E7A operate?
Mode-S A70E7A has broadcast 20 distinct callsigns, including SKW3861, SKW3990, SKW3886, SKW3864, SKW4103.