Apparatus

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sensors Mode-S transponder

A7FDE4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N614CZ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A7FDE4
Octal
51776744
Decimal
11,009,508
Country
US
Tail
N614CZ
Type
E75L
Broadcasting now · callsign SKW3832 · 22,000 ft
Flights observed
684
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Current position

A7FDE4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7FDE4 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
SKW3669 SkyWest Airlines 11 2026-07-21
SKW3806 SkyWest Airlines 10 2026-06-02
SKW4088 - 9 2026-07-20
SKW4028 - 9 2026-07-20
SKW3767 SkyWest Airlines 9 2026-07-21
SKW3732 SkyWest Airlines 9 2026-05-20
SKW3707 - 9 2026-06-26
SKW3620 SkyWest Airlines 9 2026-05-13
SKW3923 - 8 2026-06-17
SKW3876 - 8 2026-07-19
SKW4164 SkyWest Airlines 7 2026-06-06
SKW3801 - 7 2026-06-27
SKW3747 - 7 2026-07-13
SKW3727 SkyWest Airlines 7 2026-04-22
SKW4119 - 6 2026-06-23
SKW4101 - 6 2026-07-12
SKW3966 - 6 2026-06-21
SKW3953 - 6 2026-06-20
SKW3952 SkyWest Airlines 6 2026-07-20
SKW3930 SkyWest Airlines 6 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4012 SLC → ABQ Jul 26, 22:20 UTCJul 26, 23:00 UTC40m
2026-07-26 SKW4012 SLC → ABQ Jul 26, 19:50 UTCJul 26, 21:10 UTC1h 20m
2026-07-26 SKW3536 RST → MSP Jul 26, 17:05 UTCJul 26, 18:40 UTC1h 35m
2026-07-26 SKW3536 RST → MSP Jul 26, 14:30 UTCJul 26, 15:55 UTC1h 25m
2026-07-26 SKW3899 RAP → MSP Jul 26, 11:10 UTCJul 26, 12:55 UTC1h 45m
2026-07-26 SKW4035 CLE → BOS Jul 26, 01:25 UTCJul 26, 02:55 UTC1h 30m
2026-07-25 SKW3942 BIS → MSP Jul 25, 18:50 UTCJul 25, 19:40 UTC50m
2026-07-25 SKW3942 BIS → MSP Jul 25, 18:46 UTCJul 25, 19:30 UTC44m
2026-07-25 SKW3942 BIS → MSP Jul 25, 16:15 UTCJul 25, 17:10 UTC55m
2026-07-25 SKW3844 MDW → MSP Jul 25, 12:55 UTCJul 25, 14:40 UTC1h 45m
2026-07-24 SKW3791 MSP → OKC Jul 24, 23:31 UTCJul 25, 00:54 UTC1h 23m
2026-07-24 SKW3791 MSP → OKC Jul 24, 23:25 UTCJul 25, 01:00 UTC1h 35m
2026-07-24 SKW3686 MSN → MSP Jul 24, 21:40 UTCJul 24, 22:01 UTC21m
2026-07-24 SKW3686 MSN → MSP Jul 24, 19:55 UTCJul 24, 20:15 UTC20m
2026-07-24 SKW3699 OMA → LGA Jul 24, 15:50 UTCJul 24, 18:20 UTC2h 30m
2026-07-24 SKW3699 OMA → LGA Jul 24, 12:50 UTCJul 24, 14:40 UTC1h 50m
2026-07-24 SKW3930 SJC → LAX Jul 24, 10:10 UTCJul 24, 10:45 UTC35m
2026-07-24 SKW3930 SJC → LAX Jul 24, 10:21 UTCJul 24, 10:40 UTC19m
2026-07-24 SKW3907 MDW → MSP Jul 24, 03:05 UTCJul 24, 03:25 UTC20m
2026-07-24 SKW4462 MSP → MKE Jul 24, 00:05 UTCJul 24, 01:05 UTC1h 0m
2026-07-23 SKW4462 MSP → MKE Jul 23, 22:15 UTCJul 23, 23:00 UTC45m
2026-07-23 SKW4032 HPN → ATL Jul 23, 20:00 UTCJul 23, 20:45 UTC45m
2026-07-23 SKW4032 HPN → ATL Jul 23, 18:10 UTCJul 23, 18:45 UTC35m
2026-07-23 SKW3561 BOI → SEA Jul 23, 16:00 UTCJul 23, 16:35 UTC35m
2026-07-23 SKW3561 BOI → SEA Jul 23, 14:25 UTCJul 23, 15:00 UTC35m
2026-07-23 SKW3996 CRW → ATL Jul 23, 10:15 UTCJul 23, 12:45 UTC2h 30m
2026-07-23 SKW4129 HPN → ATL Jul 23, 01:05 UTCJul 23, 02:55 UTC1h 50m
2026-07-22 SKW3526 YWG → MSP Jul 22, 21:20 UTCJul 22, 22:20 UTC1h 0m
2026-07-22 SKW3526 YWG → MSP Jul 22, 21:16 UTCJul 22, 22:19 UTC1h 3m
2026-07-22 SKW192E IMT → DTW Jul 22, 18:55 UTCJul 22, 20:05 UTC1h 10m
2026-07-22 SKW3813 TWF → SLC Jul 22, 15:05 UTCJul 22, 17:30 UTC2h 25m
2026-07-22 SKW4015 - Jul 22, 11:45 UTCJul 22, 13:55 UTC2h 10m
2026-07-22 SKW3731 SEA → SJC Jul 22, 00:45 UTCJul 22, 02:50 UTC2h 5m
2026-07-21 SKW3767 DTW → ATW Jul 21, 21:15 UTCJul 21, 22:55 UTC1h 40m
2026-07-21 SKW3767 DTW → ATW Jul 21, 18:05 UTCJul 21, 19:55 UTC1h 50m
2026-07-21 SKW3650 FAR → MSP Jul 21, 15:10 UTCJul 21, 16:40 UTC1h 30m
2026-07-21 SKW3650 FAR → MSP Jul 21, 12:25 UTCJul 21, 14:00 UTC1h 35m
2026-07-21 SKW3669 DTW → YUL Jul 21, 01:55 UTCJul 21, 03:45 UTC1h 50m
2026-07-20 SKW3669 DTW → YUL Jul 20, 22:25 UTCJul 21, 00:05 UTC1h 40m
2026-07-20 SKW4028 - Jul 20, 18:15 UTCJul 20, 20:30 UTC2h 15m
2026-07-20 SKW4028 AUS → CMH Jul 20, 14:30 UTCJul 20, 17:15 UTC2h 45m
2026-07-20 SKW4088 - Jul 20, 12:05 UTCJul 20, 13:30 UTC1h 25m
2026-07-20 SKW3952 ATL → HPN Jul 20, 01:10 UTCJul 20, 02:35 UTC1h 25m
2026-07-19 SKW4016 - Jul 19, 22:35 UTCJul 19, 23:45 UTC1h 10m
2026-07-19 SKW141E AUS → MSY Jul 19, 20:40 UTCJul 19, 21:45 UTC1h 5m
2026-07-19 SKW3876 DEN → AUS Jul 19, 17:40 UTCJul 19, 19:30 UTC1h 50m
2026-07-19 SKW3876 AUS → DEN Jul 19, 14:35 UTCJul 19, 16:20 UTC1h 45m
2026-07-19 SKW4175 - Jul 19, 10:40 UTCJul 19, 11:25 UTC45m
2026-07-18 SKW4121 MDW → DTW Jul 18, 22:05 UTCJul 18, 22:45 UTC40m
2026-07-18 SKW4085 CLE → BOS Jul 18, 18:25 UTCJul 18, 21:00 UTC2h 35m

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 N614CZ page for operator, model, and routing details .

Mode-S A7FDE4 frequently asked

What is Mode-S code A7FDE4?
A7FDE4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N614CZ.
Where is Mode-S A7FDE4 registered?
Mode-S code A7FDE4 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 A7FDE4 broadcasting right now?
Yes. Mode-S A7FDE4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7FDE4, octal 51776744, decimal 11,009,508.
What flights does A7FDE4 operate?
Mode-S A7FDE4 has broadcast 20 distinct callsigns, including SKW3669, SKW3806, SKW4088, SKW4028, SKW3767.