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sensors Mode-S transponder

A7FA2D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N613CZ · EMBRAER ERJ-170-200 (long wing) · operated by DELTA AIR LINES INC

Hex
A7FA2D
Octal
51775055
Decimal
11,008,557
Country
US
Tail
N613CZ
Type
E75L
Broadcasting now · callsign SKW3669 · 15,825 ft
Flights observed
534
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A7FA2D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7FA2D 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
SKW3915 - 15 2026-07-05
SKW3767 - 15 2026-06-29
SKW4101 - 10 2026-07-04
SKW4177 - 9 2026-06-20
SKW4063 - 9 2026-06-19
SKW3960 - 9 2026-07-07
SKW3650 SkyWest Airlines 9 2026-06-29
SKW4146 - 8 2026-07-03
SKW3945 - 8 2026-07-09
SKW3888 SkyWest Airlines 7 2026-05-06
SKW3712 SkyWest Airlines 7 2026-05-28
SKW3577 SkyWest Airlines 7 2026-06-25
SKW4163 - 6 2026-07-06
SKW3844 - 6 2026-07-09
SKW3669 - 6 2026-07-14
SKW135K - 6 2026-06-19
SKW4164 - 5 2026-06-28
SKW4088 - 5 2026-07-13
SKW3952 - 5 2026-07-13
SKW3856 - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3669 - Jul 14, 02:55 UTCJul 14, 03:15 UTC20m
2026-07-13 SKW3669 AUS → DEN Jul 13, 23:45 UTCJul 14, 01:50 UTC2h 5m
2026-07-13 SKW4028 - Jul 13, 18:00 UTCJul 13, 20:45 UTC2h 45m
2026-07-13 SKW4028 AUS → CMH Jul 13, 14:25 UTCJul 13, 16:55 UTC2h 30m
2026-07-13 SKW4088 - Jul 13, 11:50 UTCJul 13, 13:10 UTC1h 20m
2026-07-13 SKW4088 MEM → AUS Jul 13, 11:55 UTCJul 13, 13:09 UTC1h 14m
2026-07-13 SKW3952 - Jul 13, 01:05 UTCJul 13, 02:25 UTC1h 20m
2026-07-12 SKW4053 - Jul 12, 23:25 UTCJul 13, 00:10 UTC45m
2026-07-12 SKW4053 - Jul 12, 21:45 UTCJul 12, 22:30 UTC45m
2026-07-12 SKW3747 PHX → AUS Jul 12, 18:35 UTCJul 12, 20:35 UTC2h 0m
2026-07-12 SKW3747 AUS → PHX Jul 12, 15:45 UTCJul 12, 17:35 UTC1h 50m
2026-07-12 SKW4212 - Jul 12, 12:25 UTCJul 12, 14:40 UTC2h 15m
2026-07-11 SKW4468 - Jul 11, 01:35 UTCJul 11, 02:25 UTC50m
2026-07-10 SKW4005 YWG → MSP Jul 10, 23:00 UTCJul 11, 00:00 UTC1h 0m
2026-07-10 SKW182J MSP → YWG Jul 10, 20:35 UTCJul 10, 21:35 UTC1h 0m
2026-07-10 SKW3699 IAD → MSP Jul 10, 15:58 UTCJul 10, 18:02 UTC2h 4m
2026-07-10 SKW3699 IAD → MSP Jul 10, 15:55 UTCJul 10, 18:05 UTC2h 10m
2026-07-10 SKW3699 MSP → IAD Jul 10, 12:40 UTCJul 10, 14:40 UTC2h 0m
2026-07-10 SKW3914 - Jul 10, 10:15 UTCJul 10, 11:10 UTC55m
2026-07-10 SKW3834 - Jul 10, 02:50 UTCJul 10, 03:50 UTC1h 0m
2026-07-10 SKW4462 - Jul 10, 00:20 UTCJul 10, 01:15 UTC55m
2026-07-09 SKW4462 - Jul 9, 22:05 UTCJul 9, 22:50 UTC45m
2026-07-09 SKW4032 - Jul 9, 19:55 UTCJul 9, 20:40 UTC45m
2026-07-09 SKW4032 - Jul 9, 18:05 UTCJul 9, 18:45 UTC40m
2026-07-09 SKW3844 - Jul 9, 15:25 UTCJul 9, 17:00 UTC1h 35m
2026-07-09 SKW4610 AUS → OKC Jul 9, 13:30 UTCJul 9, 14:30 UTC1h 0m
2026-07-09 SKW3945 BNA → AUS Jul 9, 00:05 UTCJul 9, 01:50 UTC1h 45m
2026-07-08 SKW3945 AUS → BNA Jul 8, 20:45 UTCJul 8, 22:35 UTC1h 50m
2026-07-08 SKW3955 - Jul 8, 17:00 UTCJul 8, 19:35 UTC2h 35m
2026-07-08 SKW3708 EUG → SLC Jul 8, 13:15 UTCJul 8, 14:40 UTC1h 25m
2026-07-08 SKW137C SLC → EUG Jul 8, 05:00 UTCJul 8, 06:30 UTC1h 30m
2026-07-08 SKW3856 - Jul 8, 02:25 UTCJul 8, 03:55 UTC1h 30m
2026-07-07 SKW3856 - Jul 7, 23:40 UTCJul 8, 01:20 UTC1h 40m
2026-07-07 SKW3908 AUS → SLC Jul 7, 19:40 UTCJul 7, 22:25 UTC2h 45m
2026-07-07 SKW3960 BNA → AUS Jul 7, 16:35 UTCJul 7, 18:25 UTC1h 50m
2026-07-06 SKW4163 AUS → BNA Jul 6, 00:30 UTCJul 6, 02:25 UTC1h 55m
2026-07-05 SKW3915 BZN → AUS Jul 5, 19:42 UTCJul 5, 22:54 UTC3h 12m
2026-07-05 SKW3915 AUS → AUS Jul 5, 15:10 UTCJul 5, 22:55 UTC7h 45m
2026-07-05 SKW4088 - Jul 5, 12:00 UTCJul 5, 13:25 UTC1h 25m
2026-07-05 SKW3952 - Jul 5, 01:20 UTCJul 5, 02:45 UTC1h 25m
2026-07-04 SKW4101 - Jul 4, 21:40 UTCJul 4, 23:55 UTC2h 15m
2026-07-04 SKW4101 AUS → IND Jul 4, 21:45 UTCJul 4, 23:53 UTC2h 8m
2026-07-04 SKW4101 AUS → IND Jul 4, 16:10 UTCJul 4, 18:10 UTC2h 0m
2026-07-04 SKW3669 DEN → AUS Jul 4, 02:40 UTCJul 4, 04:25 UTC1h 45m
2026-07-03 SKW3669 AUS → DEN Jul 3, 23:40 UTCJul 4, 01:55 UTC2h 15m
2026-07-03 SKW3915 BZN → AUS Jul 3, 19:33 UTCJul 3, 22:10 UTC2h 37m
2026-07-03 SKW3915 AUS → AUS Jul 3, 15:20 UTCJul 3, 22:15 UTC6h 55m
2026-07-03 SKW4146 BNA → AUS Jul 3, 12:30 UTCJul 3, 14:15 UTC1h 45m
2026-07-03 SKW4146 BNA → AUS Jul 3, 12:30 UTCJul 3, 14:14 UTC1h 44m
2026-07-03 SKW4163 - Jul 3, 00:20 UTCJul 3, 02:15 UTC1h 55m

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 N613CZ page for operator, model, and routing details .

Mode-S A7FA2D frequently asked

What is Mode-S code A7FA2D?
A7FA2D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N613CZ.
Where is Mode-S A7FA2D registered?
Mode-S code A7FA2D 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 A7FA2D broadcasting right now?
Yes. Mode-S A7FA2D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7FA2D, octal 51775055, decimal 11,008,557.
What flights does A7FA2D operate?
Mode-S A7FA2D has broadcast 20 distinct callsigns, including SKW3915, SKW3767, SKW4101, SKW4177, SKW4063.