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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 SKW141E · 2,825 ft
Flights observed
613
Distinct callsigns
20
Country
US
Last broadcast
1h ago

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
SKW3806 SkyWest Airlines 10 2026-06-02
SKW3732 SkyWest Airlines 9 2026-05-20
SKW3707 - 9 2026-06-26
SKW3669 - 9 2026-07-12
SKW3620 SkyWest Airlines 9 2026-05-13
SKW3923 - 8 2026-06-17
SKW4164 SkyWest Airlines 7 2026-06-06
SKW4088 - 7 2026-07-06
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
SKW3881 SkyWest Airlines 6 2026-06-25
SKW3876 - 6 2026-07-14
SKW3840 SkyWest Airlines 6 2026-05-28
SKW4038 SkyWest Airlines 5 2026-05-31
SKW4028 - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3876 DEN → AUS Jul 14, 16:15 UTCJul 14, 18:05 UTC1h 50m
2026-07-14 SKW3876 AUS → DEN Jul 14, 12:55 UTCJul 14, 14:40 UTC1h 45m
2026-07-14 SKW3577 - Jul 14, 01:15 UTCJul 14, 02:40 UTC1h 25m
2026-07-13 SKW3577 - Jul 13, 22:50 UTCJul 14, 00:30 UTC1h 40m
2026-07-13 SKW3747 PHX → AUS Jul 13, 17:40 UTCJul 13, 19:40 UTC2h 0m
2026-07-13 SKW3747 AUS → PHX Jul 13, 14:45 UTCJul 13, 16:55 UTC2h 10m
2026-07-12 SKW4027 - Jul 12, 22:50 UTCJul 13, 00:55 UTC2h 5m
2026-07-12 SKW4027 AUS → IND Jul 12, 19:20 UTCJul 12, 21:35 UTC2h 15m
2026-07-12 SKW4101 - Jul 12, 15:40 UTCJul 12, 17:45 UTC2h 5m
2026-07-12 SKW4101 AUS → IND Jul 12, 12:20 UTCJul 12, 14:30 UTC2h 10m
2026-07-12 SKW3669 DEN → AUS Jul 12, 06:15 UTCJul 12, 08:01 UTC1h 45m
2026-07-12 SKW3669 DEN → AUS Jul 12, 06:24 UTCJul 12, 07:58 UTC1h 34m
2026-07-12 SKW3669 AUS → DEN Jul 12, 03:35 UTCJul 12, 05:20 UTC1h 45m
2026-07-12 SKW3734 TPA → AUS Jul 12, 00:05 UTCJul 12, 02:25 UTC2h 20m
2026-07-11 SKW3734 AUS → TPA Jul 11, 20:05 UTCJul 11, 22:55 UTC2h 50m
2026-07-11 SKW4177 - Jul 11, 18:00 UTCJul 11, 18:50 UTC50m
2026-07-11 SKW4177 - Jul 11, 15:45 UTCJul 11, 16:30 UTC45m
2026-07-11 SKW3950 MSP → AUS Jul 11, 12:10 UTCJul 11, 14:25 UTC2h 15m
2026-07-11 SKW3930 - Jul 11, 10:05 UTCJul 11, 10:35 UTC30m
2026-07-11 SKW3907 - Jul 11, 03:05 UTCJul 11, 03:25 UTC20m
2026-07-10 SKW4012 - Jul 10, 22:35 UTCJul 11, 00:00 UTC1h 25m
2026-07-10 SKW4012 MSP → XNA Jul 10, 20:00 UTCJul 10, 21:30 UTC1h 30m
2026-07-10 SKW3536 - Jul 10, 17:00 UTCJul 10, 18:30 UTC1h 30m
2026-07-10 SKW3536 MSP → XNA Jul 10, 14:20 UTCJul 10, 15:50 UTC1h 30m
2026-07-10 SKW3660 YWG → MSP Jul 10, 11:45 UTCJul 10, 12:40 UTC55m
2026-07-10 SKW135K MSP → YWG Jul 10, 03:00 UTCJul 10, 04:10 UTC1h 10m
2026-07-09 SKW4063 - Jul 9, 23:50 UTCJul 10, 01:35 UTC1h 45m
2026-07-09 SKW4063 - Jul 9, 21:05 UTCJul 9, 22:45 UTC1h 40m
2026-07-09 SKW3848 - Jul 9, 18:50 UTCJul 9, 19:40 UTC50m
2026-07-09 SKW3848 OMA → MSP Jul 9, 18:58 UTCJul 9, 19:37 UTC39m
2026-07-09 SKW4114 SLC → OMA Jul 9, 15:45 UTCJul 9, 17:40 UTC1h 55m
2026-07-09 SKW3856 - Jul 9, 02:15 UTCJul 9, 03:40 UTC1h 25m
2026-07-08 SKW3856 - Jul 8, 23:50 UTCJul 9, 01:15 UTC1h 25m
2026-07-08 SKW3908 AUS → SLC Jul 8, 20:15 UTCJul 8, 22:50 UTC2h 35m
2026-07-08 SKW3747 PHX → AUS Jul 8, 16:51 UTCJul 8, 18:44 UTC1h 53m
2026-07-08 SKW3747 PHX → AUS Jul 8, 16:50 UTCJul 8, 18:45 UTC1h 55m
2026-07-08 SKW3747 - Jul 8, 13:50 UTCJul 8, 15:45 UTC1h 55m
2026-07-08 SKW3945 - Jul 8, 00:15 UTCJul 8, 02:00 UTC1h 45m
2026-07-07 SKW3945 AUS → BNA Jul 7, 20:50 UTCJul 7, 23:10 UTC2h 20m
2026-07-07 SKW3747 - Jul 7, 16:55 UTCJul 7, 18:55 UTC2h 0m
2026-07-07 SKW3747 AUS → PHX Jul 7, 13:40 UTCJul 7, 15:40 UTC2h 0m
2026-07-07 SKW3669 DEN → AUS Jul 7, 01:50 UTCJul 7, 03:30 UTC1h 40m
2026-07-06 SKW3669 AUS → DEN Jul 6, 22:15 UTCJul 7, 00:30 UTC2h 15m
2026-07-06 SKW4028 - Jul 6, 18:15 UTCJul 6, 20:40 UTC2h 25m
2026-07-06 SKW4028 CMH → AUS Jul 6, 18:11 UTCJul 6, 20:40 UTC2h 29m
2026-07-06 SKW4028 AUS → CMH Jul 6, 14:45 UTCJul 6, 17:10 UTC2h 25m
2026-07-06 SKW4088 - Jul 6, 12:30 UTCJul 6, 13:50 UTC1h 20m
2026-07-06 SKW4088 MEM → AUS Jul 6, 12:34 UTCJul 6, 13:46 UTC1h 12m
2026-07-06 SKW3952 - Jul 6, 01:45 UTCJul 6, 03:05 UTC1h 20m
2026-07-05 SKW3612 - Jul 5, 21:50 UTCJul 6, 00:15 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 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 SKW3806, SKW3732, SKW3707, SKW3669, SKW3620.