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sensors Mode-S transponder

AAAFD8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N788SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
AAAFD8
Octal
52527730
Decimal
11,186,136
Country
US
Tail
N788SK
Type
CRJ7
No current signal · last broadcast Jul 25, 01:40 UTC
Flights observed
542
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 01:40 UTC

Last known position

Most recent position reported by Mode-S AAAFD8.

Country allocation

The ICAO 24-bit address AAAFD8 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
SKW5617 SkyWest Airlines 7 2026-07-22
SKW5239 - 7 2026-07-09
SKW5661 - 6 2026-07-09
SKW5622 - 6 2026-07-11
SKW5609 - 6 2026-07-15
SKW5495 - 6 2026-07-07
SKW5431 - 6 2026-06-26
SKW5869 SkyWest Airlines 5 2026-06-08
SKW5827 SkyWest Airlines 5 2026-06-26
SKW5723 - 5 2026-07-20
SKW5657 SkyWest Airlines 5 2026-06-16
SKW5590 - 5 2026-06-19
SKW4731 - 5 2026-07-09
SKW4718 SkyWest Airlines 5 2026-05-13
SKW4709 - 5 2026-06-30
SKW4685 SkyWest Airlines 5 2026-07-23
SKW4684 - 5 2026-07-07
SKW4636 SkyWest Airlines 5 2026-07-19
SKW6037 SkyWest Airlines 4 2026-07-22
SKW5989 - 4 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SKW4711 DAY → ORD Jul 25, 01:20 UTCJul 25, 01:40 UTC20m
2026-07-25 SKW4711 DAY → ORD Jul 25, 01:27 UTCJul 25, 01:38 UTC11m
2026-07-24 SKW4633 BOI → LAX Jul 24, 22:30 UTCJul 24, 23:25 UTC55m
2026-07-24 SKW5633 LEX → ORD Jul 24, 21:00 UTCJul 24, 21:35 UTC35m
2026-07-24 SKW4748 GRB → ORD Jul 24, 18:40 UTCJul 24, 19:15 UTC35m
2026-07-24 SKW5720 SFO → BOI Jul 24, 17:30 UTCJul 24, 17:50 UTC20m
2026-07-24 SKW5399 BWI → LGA Jul 24, 15:45 UTCJul 24, 16:05 UTC20m
2026-07-24 SKW5842 - Jul 24, 13:55 UTCJul 24, 14:15 UTC20m
2026-07-24 SKW5752 BFL → DEN Jul 24, 11:35 UTCJul 24, 12:30 UTC55m
2026-07-24 SKW5752 BFL → DEN Jul 24, 11:31 UTCJul 24, 12:13 UTC42m
2026-07-23 SKW382U ORD → TVC Jul 23, 23:30 UTCJul 24, 00:00 UTC30m
2026-07-23 SKW4685 EUG → SFO Jul 23, 20:05 UTCJul 23, 21:25 UTC1h 20m
2026-07-23 SKW5437 PHX → SFO Jul 23, 18:00 UTCJul 23, 18:55 UTC55m
2026-07-23 SKW5466 BOI → SFO Jul 23, 14:50 UTCJul 23, 16:00 UTC1h 10m
2026-07-23 SKW5466 BOI → SFO Jul 23, 14:54 UTCJul 23, 16:03 UTC1h 9m
2026-07-23 SKW5409 ORD → FAR Jul 23, 12:35 UTCJul 23, 13:30 UTC55m
2026-07-23 SKW5889 - Jul 23, 10:40 UTCJul 23, 11:20 UTC40m
2026-07-23 SKW5830 PWM → ORD Jul 23, 02:51 UTCJul 23, 03:02 UTC11m
2026-07-23 SKW5830 PWM → ORD Jul 23, 02:35 UTCJul 23, 02:55 UTC20m
2026-07-22 SKW4723 - Jul 22, 23:50 UTCJul 23, 00:25 UTC35m
2026-07-22 SKW4781 AUS → LAX Jul 22, 22:00 UTCJul 22, 22:35 UTC35m
2026-07-22 SKW5617 PSP → SFO Jul 22, 18:15 UTCJul 22, 19:50 UTC1h 35m
2026-07-22 SKW6037 LAX → RDD Jul 22, 16:15 UTCJul 22, 17:15 UTC1h 0m
2026-07-22 SKW5853 LGA → ORD Jul 22, 12:30 UTCJul 22, 13:45 UTC1h 15m
2026-07-22 SKW5767 DAY → ORD Jul 22, 03:00 UTCJul 22, 04:20 UTC1h 20m
2026-07-21 SKW5606 GEG → SFO Jul 21, 23:10 UTCJul 22, 01:15 UTC2h 5m
2026-07-21 SKW5565 SUN → SFO Jul 21, 20:25 UTCJul 21, 22:20 UTC1h 55m
2026-07-21 SKW5977 ASE → SFO Jul 21, 16:35 UTCJul 21, 18:15 UTC1h 40m
2026-07-21 SKW5532 SFO → ABQ Jul 21, 12:40 UTCJul 21, 13:50 UTC1h 10m
2026-07-20 SKW4748 GRB → ORD Jul 20, 22:45 UTCJul 20, 23:30 UTC45m
2026-07-20 SKW5720 SFO → BOI Jul 20, 21:25 UTCJul 20, 21:45 UTC20m
2026-07-20 SKW5977 - Jul 20, 16:25 UTCJul 20, 17:55 UTC1h 30m
2026-07-20 SKW5532 - Jul 20, 12:00 UTCJul 20, 13:10 UTC1h 10m
2026-07-20 SKW5723 - Jul 20, 09:55 UTCJul 20, 10:15 UTC20m
2026-07-19 SKW4636 ORD → SBN Jul 19, 23:20 UTCJul 19, 23:40 UTC20m
2026-07-19 SKW4685 - Jul 19, 20:10 UTCJul 19, 21:35 UTC1h 25m
2026-07-19 SKW5437 - Jul 19, 18:10 UTCJul 19, 19:05 UTC55m
2026-07-19 SKW5383 TYS → DEN Jul 19, 14:25 UTCJul 19, 15:25 UTC1h 0m
2026-07-19 SKW6089 FWA → FAR Jul 19, 01:10 UTCJul 19, 01:50 UTC40m
2026-07-18 SKW5505 ORD → SBN Jul 18, 23:10 UTCJul 18, 23:27 UTC17m
2026-07-18 SKW5505 - Jul 18, 23:10 UTCJul 18, 23:30 UTC20m
2026-07-18 SKW5714 SJC → DEN Jul 18, 20:20 UTCJul 18, 21:15 UTC55m
2026-07-18 SKW5234 - Jul 18, 17:45 UTCJul 18, 18:25 UTC40m
2026-07-18 SKW5629 - Jul 18, 15:10 UTCJul 18, 16:05 UTC55m
2026-07-18 SKW5703 - Jul 18, 13:20 UTCJul 18, 14:05 UTC45m
2026-07-18 SKW4707 - Jul 18, 10:20 UTCJul 18, 10:55 UTC35m
2026-07-18 SKW4740 GTF → DEN Jul 18, 01:54 UTCJul 18, 02:19 UTC25m
2026-07-17 SKW4685 - Jul 17, 22:40 UTCJul 17, 23:50 UTC1h 10m
2026-07-17 SKW5437 - Jul 17, 18:25 UTCJul 17, 19:15 UTC50m
2026-07-17 SKW5437 ORD → DLH Jul 17, 18:14 UTCJul 17, 19:23 UTC1h 9m

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 N788SK page for operator, model, and routing details .

Mode-S AAAFD8 frequently asked

What is Mode-S code AAAFD8?
AAAFD8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N788SK.
Where is Mode-S AAAFD8 registered?
Mode-S code AAAFD8 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 AAAFD8 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 01:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAAFD8, octal 52527730, decimal 11,186,136.
What flights does AAAFD8 operate?
Mode-S AAAFD8 has broadcast 20 distinct callsigns, including SKW5617, SKW5239, SKW5661, SKW5622, SKW5609.