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
Broadcasting now · callsign SKW3865 · 2,500 ft
Flights observed
627
Distinct callsigns
20
Country
US
Last broadcast
51m ago

Current position

A70E7A is currently broadcasting. Map zoomed to live position.

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 - 16 2026-07-14
SKW4032 SkyWest Airlines 12 2026-06-05
SKW3928 SkyWest Airlines 11 2026-05-18
SKW3864 - 11 2026-07-13
SKW3595 - 11 2026-07-11
SKW4073 - 10 2026-07-08
SKW3995 - 10 2026-07-12
SKW3886 - 10 2026-07-11
SKW3851 SkyWest Airlines 10 2026-05-19
SKW3843 - 10 2026-06-17
SKW4103 - 9 2026-07-12
SKW3885 SkyWest Airlines 9 2026-05-28
SKW3868 - 9 2026-06-21
SKW3836 SkyWest Airlines 9 2026-06-21
SKW3835 - 9 2026-07-11
SKW3807 SkyWest Airlines 9 2026-06-06
SKW4466 - 8 2026-07-10
SKW4007 SkyWest Airlines 8 2026-06-09
SKW3921 SkyWest Airlines 8 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3865 - Jul 14, 20:20 UTCJul 14, 20:30 UTC10m
2026-07-14 SKW3865 MSP → GRR Jul 14, 18:15 UTCJul 14, 19:15 UTC1h 0m
2026-07-14 SKW3990 - Jul 14, 15:45 UTCJul 14, 16:50 UTC1h 5m
2026-07-14 SKW3990 GRR → MSP Jul 14, 15:54 UTCJul 14, 16:44 UTC50m
2026-07-14 SKW3990 MSP → GRR Jul 14, 13:35 UTCJul 14, 14:45 UTC1h 10m
2026-07-14 SKW3840 FSD → MSP Jul 14, 10:15 UTCJul 14, 10:55 UTC40m
2026-07-14 SKW3578 MSP → FSD Jul 14, 00:00 UTCJul 14, 00:35 UTC35m
2026-07-13 SKW3967 - Jul 13, 20:50 UTCJul 13, 21:55 UTC1h 5m
2026-07-13 SKW3967 - Jul 13, 18:10 UTCJul 13, 19:05 UTC55m
2026-07-13 SKW3990 - Jul 13, 15:55 UTCJul 13, 16:55 UTC1h 0m
2026-07-13 SKW3990 MSP → GRR Jul 13, 13:40 UTCJul 13, 14:45 UTC1h 5m
2026-07-13 SKW3864 - Jul 13, 11:25 UTCJul 13, 12:15 UTC50m
2026-07-13 SKW4014 - Jul 13, 02:55 UTCJul 13, 03:40 UTC45m
2026-07-12 SKW3709 - Jul 12, 23:40 UTCJul 13, 01:15 UTC1h 35m
2026-07-12 SKW3709 - Jul 12, 21:00 UTCJul 12, 22:35 UTC1h 35m
2026-07-12 SKW3995 - Jul 12, 19:10 UTCJul 12, 20:01 UTC50m
2026-07-12 SKW3995 - Jul 12, 16:35 UTCJul 12, 17:20 UTC45m
2026-07-12 SKW4103 - Jul 12, 14:50 UTCJul 12, 15:30 UTC40m
2026-07-12 SKW4103 MSN → MSP Jul 12, 14:47 UTCJul 12, 15:25 UTC38m
2026-07-12 SKW4103 - Jul 12, 12:25 UTCJul 12, 13:05 UTC40m
2026-07-12 SKW3840 FSD → MSP Jul 12, 10:10 UTCJul 12, 10:45 UTC35m
2026-07-12 SKW3578 MSP → FSD Jul 12, 00:10 UTCJul 12, 00:40 UTC30m
2026-07-11 SKW3595 - Jul 11, 21:30 UTCJul 11, 22:50 UTC1h 20m
2026-07-11 SKW3595 MSP → ICT Jul 11, 19:05 UTCJul 11, 20:15 UTC1h 10m
2026-07-11 SKW3556 SJC → SLC Jul 11, 16:35 UTCJul 11, 17:55 UTC1h 20m
2026-07-11 SKW3556 SJC → SLC Jul 11, 14:10 UTCJul 11, 15:20 UTC1h 10m
2026-07-11 SKW3835 - Jul 11, 11:25 UTCJul 11, 12:30 UTC1h 5m
2026-07-11 SKW3886 - Jul 11, 01:20 UTCJul 11, 02:15 UTC55m
2026-07-10 SKW3948 - Jul 10, 22:50 UTCJul 10, 23:35 UTC45m
2026-07-10 SKW188F MSP → OMA Jul 10, 20:50 UTCJul 10, 21:40 UTC50m
2026-07-10 SKW3534 FSD → MSP Jul 10, 18:40 UTCJul 10, 19:15 UTC35m
2026-07-10 SKW3534 MSP → FSD Jul 10, 16:55 UTCJul 10, 17:30 UTC35m
2026-07-10 SKW4466 - Jul 10, 14:50 UTCJul 10, 15:40 UTC50m
2026-07-10 SKW4466 - Jul 10, 12:55 UTCJul 10, 13:40 UTC45m
2026-07-10 SKW4158 - Jul 10, 10:30 UTCJul 10, 11:20 UTC50m
2026-07-09 SKW4143 - Jul 9, 23:55 UTCJul 10, 00:55 UTC1h 0m
2026-07-09 SKW3595 ATL → CHA Jul 9, 21:30 UTCJul 9, 22:45 UTC1h 15m
2026-07-09 SKW3595 ATL → CHA Jul 9, 18:45 UTCJul 9, 20:05 UTC1h 20m
2026-07-09 SKW3990 - Jul 9, 15:50 UTCJul 9, 16:55 UTC1h 5m
2026-07-09 SKW3990 - Jul 9, 13:50 UTCJul 9, 14:55 UTC1h 5m
2026-07-09 SKW3864 CBF → MSP Jul 9, 11:20 UTCJul 9, 12:10 UTC50m
2026-07-09 SKW4014 - Jul 9, 03:25 UTCJul 9, 04:25 UTC1h 0m
2026-07-09 SKW3829 YYZ → MSP Jul 9, 00:10 UTCJul 9, 01:45 UTC1h 35m
2026-07-08 SKW4080 MSP → YYZ Jul 8, 21:15 UTCJul 8, 22:50 UTC1h 35m
2026-07-08 SKW4089 COS → MSP Jul 8, 18:25 UTCJul 8, 20:00 UTC1h 35m
2026-07-08 SKW4089 MSP → COS Jul 8, 14:35 UTCJul 8, 16:40 UTC2h 5m
2026-07-08 SKW4073 YYZ → MSP Jul 8, 11:00 UTCJul 8, 12:35 UTC1h 35m
2026-07-08 SKW125R MSP → YYZ Jul 8, 01:15 UTCJul 8, 02:45 UTC1h 30m
2026-07-07 SKW3861 - Jul 7, 21:35 UTCJul 7, 22:25 UTC50m
2026-07-07 SKW3861 ATW → MSP Jul 7, 21:34 UTCJul 7, 22:21 UTC47m

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?
Yes. Mode-S A70E7A is currently airborne.
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, SKW4032, SKW3928, SKW3864.