Apparatus

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sensors Mode-S transponder

A813AA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6198N · CESSNA 172 Skyhawk · operated by CHRISTIANSEN AVIATION LLC

Hex
A813AA
Octal
52011652
Decimal
11,015,082
Country
US
Tail
N6198N
Type
C172
No current signal · last broadcast 11h ago
Flights observed
140
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A813AA.

Country allocation

The ICAO 24-bit address A813AA 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
BYF30 - 140 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BYF30 - May 29, 22:30 UTCMay 29, 22:35 UTC5m
2026-05-29 BYF30 SQL → SQL May 29, 22:10 UTCMay 29, 22:25 UTC15m
2026-05-29 BYF30 SQL → SQL May 29, 21:35 UTCMay 29, 21:40 UTC5m
2026-05-29 BYF30 SQL → SQL May 29, 18:45 UTCMay 29, 18:55 UTC10m
2026-05-29 BYF30 SQL → SQL May 29, 18:00 UTCMay 29, 18:40 UTC40m
2026-05-27 BYF30 - May 27, 17:55 UTCMay 27, 18:25 UTC30m
2026-05-27 BYF30 - May 27, 16:15 UTCMay 27, 17:00 UTC45m
2026-05-25 BYF30 SQL → SQL May 25, 20:55 UTCMay 25, 21:40 UTC45m
2026-05-24 BYF30 SQL → SQL May 24, 18:55 UTCMay 24, 19:00 UTC5m
2026-05-24 BYF30 SQL → SQL May 24, 18:30 UTCMay 24, 18:35 UTC5m
2026-05-24 BYF30 SQL → SQL May 24, 18:05 UTCMay 24, 18:15 UTC10m
2026-05-24 BYF30 SQL → SQL May 24, 17:50 UTCMay 24, 18:00 UTC10m
2026-05-24 BYF30 SQL → SQL May 24, 17:40 UTCMay 24, 17:45 UTC5m
2026-05-24 BYF30 SQL → SQL May 24, 01:05 UTCMay 24, 02:10 UTC1h 5m
2026-05-23 BYF30 SQL → SQL May 23, 21:55 UTCMay 23, 23:00 UTC1h 5m
2026-05-23 BYF30 SQL → SQL May 23, 18:10 UTCMay 23, 19:45 UTC1h 35m
2026-05-23 BYF30 - May 23, 17:30 UTCMay 23, 17:35 UTC5m
2026-05-23 BYF30 SQL → SQL May 23, 17:05 UTCMay 23, 17:15 UTC10m
2026-05-23 BYF30 SQL → SQL May 23, 16:30 UTCMay 23, 16:55 UTC25m
2026-05-22 BYF30 - May 22, 23:40 UTCMay 23, 00:40 UTC1h 0m
2026-05-22 BYF30 - May 22, 22:55 UTCMay 22, 23:35 UTC40m
2026-05-22 BYF30 - May 22, 20:20 UTCMay 22, 21:30 UTC1h 10m
2026-05-22 BYF30 - May 22, 19:30 UTCMay 22, 20:05 UTC35m
2026-05-19 BYF30 - May 19, 04:05 UTCMay 19, 04:45 UTC40m
2026-05-19 BYF30 - May 19, 01:05 UTCMay 19, 02:05 UTC1h 0m
2026-05-17 BYF30 SQL → SQL May 17, 22:40 UTCMay 17, 23:40 UTC1h 0m
2026-05-17 BYF30 SQL → SQL May 17, 22:20 UTCMay 17, 22:25 UTC5m
2026-05-16 BYF30 SQL → SQL May 16, 18:15 UTCMay 16, 18:30 UTC15m
2026-05-16 BYF30 SQL → SQL May 16, 17:10 UTCMay 16, 18:00 UTC50m
2026-05-15 BYF30 - May 15, 22:05 UTCMay 15, 23:25 UTC1h 20m
2026-05-15 BYF30 - May 15, 19:20 UTCMay 15, 20:30 UTC1h 10m
2026-05-14 BYF30 - May 14, 18:45 UTCMay 14, 20:50 UTC2h 5m
2026-05-13 BYF30 - May 13, 16:55 UTCMay 13, 17:40 UTC45m
2026-05-13 BYF30 - May 13, 16:00 UTCMay 13, 16:50 UTC50m
2026-05-12 BYF30 SQL → SQL May 12, 20:25 UTCMay 12, 21:50 UTC1h 25m
2026-05-12 BYF30 - May 12, 04:15 UTCMay 12, 05:20 UTC1h 5m
2026-05-12 BYF30 - May 12, 02:45 UTCMay 12, 03:10 UTC25m
2026-05-11 BYF30 - May 11, 21:55 UTCMay 11, 22:35 UTC39m
2026-05-11 BYF30 SQL → SQL May 11, 02:25 UTCMay 11, 02:40 UTC15m
2026-05-11 BYF30 SQL → SQL May 11, 02:00 UTCMay 11, 02:05 UTC5m
2026-05-11 BYF30 SQL → SQL May 11, 01:45 UTCMay 11, 01:55 UTC10m
2026-05-11 BYF30 SQL → SQL May 11, 01:30 UTCMay 11, 01:40 UTC10m
2026-05-10 BYF30 SQL → SQL May 10, 22:25 UTCMay 11, 00:05 UTC1h 40m
2026-05-09 BYF30 SQL → SQL May 9, 19:25 UTCMay 9, 19:40 UTC15m
2026-05-09 BYF30 SQL → SQL May 9, 19:10 UTCMay 9, 19:14 UTC5m
2026-05-08 BYF30 SQL → SQL May 8, 21:30 UTCMay 8, 22:35 UTC1h 5m
2026-05-08 BYF30 - May 8, 00:29 UTCMay 8, 01:45 UTC1h 15m
2026-05-07 BYF30 - May 7, 23:39 UTCMay 8, 00:20 UTC40m
2026-05-07 BYF30 SQL → SQL May 7, 15:15 UTCMay 7, 17:35 UTC2h 20m
2026-05-07 BYF30 PAO → PAO May 7, 05:30 UTCMay 7, 05:40 UTC10m

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 N6198N page for operator, model, and routing details .

Mode-S A813AA frequently asked

What is Mode-S code A813AA?
A813AA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6198N.
Where is Mode-S A813AA registered?
Mode-S code A813AA 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 A813AA broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A813AA, octal 52011652, decimal 11,015,082.
What flights does A813AA operate?
Mode-S A813AA has broadcast 1 distinct callsign, including BYF30.