sensors Mode-S transponder

A1F8DD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N226SB · operated by SB SIERRA PARTNERS LLC, BLOOMER DEVERE GROUP AVIA INC

Hex
A1F8DD
Octal
50374335
Decimal
10,615,005
Country
US
Tail
N226SB
Type
S22T
No current signal · last broadcast 11d ago
Flights observed
34
Distinct callsigns
1
Country
US
Last broadcast
11d ago

Last known position

Most recent position reported by Mode-S A1F8DD.

Country allocation

The ICAO 24-bit address A1F8DD 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 1 distinct

Callsign Airline Flights Last seen
N226SB - 34 2026-06-04

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-06-04 N226SB - Jun 4, 01:10 UTCJun 4, 01:50 UTC40m
2026-06-03 N226SB SBA → TOA Jun 3, 20:45 UTCJun 3, 21:25 UTC40m
2026-06-03 N226SB - Jun 3, 01:05 UTCJun 3, 02:10 UTC1h 5m
2026-06-02 N226SB - Jun 2, 23:05 UTCJun 3, 00:20 UTC1h 15m
2026-05-29 N226SB - May 29, 00:00 UTCMay 29, 00:40 UTC40m
2026-05-28 N226SB - May 28, 21:15 UTCMay 28, 21:30 UTC15m
2026-05-28 N226SB - May 28, 15:50 UTCMay 28, 16:40 UTC50m
2026-05-28 N226SB - May 28, 04:35 UTCMay 28, 05:20 UTC45m
2026-05-27 N226SB - May 27, 16:45 UTCMay 27, 17:35 UTC50m
2026-05-24 N226SB - May 24, 20:25 UTCMay 24, 21:10 UTC45m
2026-05-24 N226SB - May 24, 19:25 UTCMay 24, 19:45 UTC20m
2026-05-24 N226SB HSH → HSH May 24, 17:50 UTCMay 24, 18:20 UTC30m
2026-05-24 N226SB - May 24, 15:40 UTCMay 24, 16:00 UTC20m
2026-05-24 N226SB - May 24, 14:45 UTCMay 24, 15:10 UTC25m
2026-05-23 N226SB SBA → VNY May 23, 00:00 UTCMay 23, 00:35 UTC35m
2026-05-22 N226SB - May 22, 22:35 UTCMay 22, 23:35 UTC1h 0m
2026-05-22 N226SB - May 22, 20:25 UTCMay 22, 21:40 UTC1h 15m
2026-05-21 N226SB - May 21, 20:10 UTCMay 21, 21:05 UTC55m
2026-05-21 N226SB - May 21, 17:50 UTCMay 21, 18:40 UTC50m
2026-05-17 N226SB - May 17, 16:30 UTCMay 17, 17:35 UTC1h 5m
2026-05-17 N226SB - May 17, 13:50 UTCMay 17, 15:05 UTC1h 15m
2026-05-17 N226SB - May 17, 01:05 UTCMay 17, 02:50 UTC1h 45m
2026-05-16 N226SB - May 16, 16:05 UTCMay 16, 18:05 UTC2h 0m
2026-05-16 N226SB SBA → SBA May 16, 15:55 UTCMay 16, 16:00 UTC5m
2026-05-14 N226SB SQL → SBA May 14, 04:25 UTCMay 14, 05:45 UTC1h 20m
2026-05-13 N226SB - May 13, 17:15 UTCMay 13, 18:55 UTC1h 40m
2026-04-19 N226SB - Apr 19, 21:00 UTCApr 19, 21:40 UTC40m
2026-04-19 N226SB - Apr 19, 19:00 UTCApr 19, 19:20 UTC20m
2026-04-17 N226SB - Apr 17, 17:25 UTCApr 17, 18:05 UTC40m
2026-04-17 N226SB - Apr 17, 15:35 UTCApr 17, 16:55 UTC1h 20m
2026-04-16 N226SB - Apr 16, 01:15 UTCApr 16, 02:45 UTC1h 30m
2026-04-15 N226SB - Apr 15, 19:05 UTCApr 15, 20:00 UTC55m
2026-04-15 N226SB - Apr 15, 18:20 UTCApr 15, 19:00 UTC40m
2026-04-12 N226SB - Apr 12, 17:15 UTCApr 12, 18:10 UTC55m

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 N226SB page for operator, model, and routing details .

Mode-S A1F8DD frequently asked

What is Mode-S code A1F8DD?
A1F8DD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N226SB.
Where is Mode-S A1F8DD registered?
Mode-S code A1F8DD 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 A1F8DD broadcasting right now?
No active broadcast right now. Last signal was 11d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F8DD, octal 50374335, decimal 10,615,005.
What flights does A1F8DD operate?
Mode-S A1F8DD has broadcast 1 distinct callsign, including N226SB.