Apparatus

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sensors Mode-S transponder

A99F26

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N719TA · operated by DYNAMIC CONCEPTS LLC

Hex
A99F26
Octal
52317446
Decimal
11,116,326
Country
US
Tail
N719TA
Type
SR20
No current signal · last broadcast Jul 26, 16:15 UTC
Flights observed
99
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 16:15 UTC

Last known position

Most recent position reported by Mode-S A99F26.

Country allocation

The ICAO 24-bit address A99F26 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
N719TA - 99 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N719TA - Jul 26, 15:00 UTCJul 26, 16:15 UTC1h 15m
2026-07-25 N719TA - Jul 25, 18:00 UTCJul 25, 18:40 UTC40m
2026-07-25 N719TA - Jul 25, 15:25 UTCJul 25, 16:05 UTC40m
2026-07-24 N719TA - Jul 24, 22:00 UTCJul 24, 23:35 UTC1h 35m
2026-07-24 N719TA - Jul 24, 17:05 UTCJul 24, 18:30 UTC1h 25m
2026-07-22 N719TA - Jul 22, 23:20 UTCJul 23, 01:05 UTC1h 45m
2026-07-22 N719TA - Jul 22, 22:15 UTCJul 22, 22:40 UTC25m
2026-07-22 N719TA - Jul 22, 21:10 UTCJul 22, 21:20 UTC10m
2026-07-22 N719TA - Jul 22, 20:05 UTCJul 22, 20:40 UTC35m
2026-07-21 N719TA - Jul 21, 19:35 UTCJul 21, 20:50 UTC1h 15m
2026-07-21 N719TA - Jul 21, 17:50 UTCJul 21, 19:00 UTC1h 10m
2026-07-21 N719TA - Jul 21, 15:30 UTCJul 21, 16:45 UTC1h 15m
2026-07-20 N719TA - Jul 20, 21:05 UTCJul 20, 22:40 UTC1h 35m
2026-07-20 N719TA - Jul 20, 18:15 UTCJul 20, 19:40 UTC1h 25m
2026-07-20 N719TA - Jul 20, 15:40 UTCJul 20, 16:50 UTC1h 10m
2026-07-19 N719TA - Jul 19, 22:50 UTCJul 20, 00:10 UTC1h 20m
2026-07-19 N719TA - Jul 19, 17:35 UTCJul 19, 19:00 UTC1h 25m
2026-07-19 N719TA - Jul 19, 16:05 UTCJul 19, 16:45 UTC40m
2026-07-18 N719TA - Jul 18, 23:55 UTCJul 19, 01:10 UTC1h 15m
2026-07-18 N719TA - Jul 18, 22:05 UTCJul 18, 22:50 UTC45m
2026-07-18 N719TA - Jul 18, 19:30 UTCJul 18, 20:40 UTC1h 10m
2026-07-18 N719TA - Jul 18, 17:35 UTCJul 18, 18:40 UTC1h 5m
2026-07-18 N719TA - Jul 18, 14:55 UTCJul 18, 15:40 UTC45m
2026-07-17 N719TA - Jul 17, 22:00 UTCJul 17, 22:49 UTC50m
2026-07-17 N719TA - Jul 17, 19:45 UTCJul 17, 20:20 UTC35m
2026-07-17 N719TA - Jul 17, 18:15 UTCJul 17, 18:29 UTC15m
2026-07-17 N719TA - Jul 17, 14:24 UTCJul 17, 15:49 UTC1h 25m
2026-07-16 N719TA - Jul 16, 22:49 UTCJul 16, 23:59 UTC1h 10m
2026-07-15 N719TA - Jul 15, 22:40 UTCJul 16, 00:05 UTC1h 25m
2026-07-11 N719TA - Jul 11, 20:15 UTCJul 11, 21:35 UTC1h 20m
2026-07-07 N719TA - Jul 7, 15:40 UTCJul 7, 16:55 UTC1h 15m
2026-07-07 N719TA - Jul 7, 01:35 UTCJul 7, 02:10 UTC35m
2026-07-06 N719TA - Jul 6, 23:35 UTCJul 7, 00:10 UTC35m
2026-07-03 N719TA - Jul 3, 20:20 UTCJul 3, 21:10 UTC50m
2026-07-02 N719TA - Jul 2, 19:45 UTCJul 2, 20:05 UTC20m
2026-07-01 N719TA - Jul 1, 19:20 UTCJul 1, 21:00 UTC1h 40m
2026-07-01 N719TA - Jul 1, 00:05 UTCJul 1, 00:15 UTC10m
2026-06-30 N719TA - Jun 30, 22:10 UTCJun 30, 22:20 UTC10m
2026-06-30 N719TA - Jun 30, 20:00 UTCJun 30, 20:30 UTC30m
2026-06-30 N719TA - Jun 30, 17:50 UTCJun 30, 18:30 UTC40m
2026-06-29 N719TA - Jun 29, 18:44 UTCJun 29, 20:04 UTC1h 20m
2026-06-29 N719TA - Jun 29, 13:59 UTCJun 29, 14:25 UTC25m
2026-06-28 N719TA - Jun 28, 19:20 UTCJun 28, 20:50 UTC1h 30m
2026-06-28 N719TA - Jun 28, 01:15 UTCJun 28, 01:50 UTC35m
2026-06-26 N719TA - Jun 26, 19:30 UTCJun 26, 19:50 UTC20m
2026-06-24 N719TA - Jun 24, 19:59 UTCJun 24, 20:14 UTC15m
2026-06-23 N719TA - Jun 23, 19:44 UTCJun 23, 21:05 UTC1h 20m
2026-06-19 N719TA - Jun 19, 19:09 UTCJun 19, 19:59 UTC50m
2026-06-18 N719TA - Jun 18, 17:50 UTCJun 18, 19:25 UTC1h 35m
2026-06-17 N719TA - Jun 17, 00:00 UTCJun 17, 00:25 UTC25m

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 N719TA page for operator, model, and routing details .

Mode-S A99F26 frequently asked

What is Mode-S code A99F26?
A99F26 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N719TA.
Where is Mode-S A99F26 registered?
Mode-S code A99F26 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 A99F26 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99F26, octal 52317446, decimal 11,116,326.
What flights does A99F26 operate?
Mode-S A99F26 has broadcast 1 distinct callsign, including N719TA.