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sensors Mode-S transponder

A99D90

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N719AV · BOMBARDIER Regional Jet CRJ-200 · operated by LEAD AND STEEL LLC

Hex
A99D90
Octal
52316620
Decimal
11,115,920
Country
US
Tail
N719AV
Type
CRJ2
Broadcasting now · callsign SGX719 · 150 ft
Flights observed
189
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Current position

A99D90 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A99D90 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
SGX719 - 189 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SGX719 - Jul 14, 13:55 UTCJul 14, 14:20 UTC25m
2026-07-14 SGX719 - Jul 14, 13:00 UTCJul 14, 13:25 UTC25m
2026-07-13 SGX719 YYZ → TEB Jul 13, 19:00 UTCJul 13, 20:00 UTC1h 0m
2026-07-13 SGX719 - Jul 13, 03:40 UTCJul 13, 04:20 UTC40m
2026-07-12 SGX719 - Jul 12, 20:10 UTCJul 12, 20:55 UTC45m
2026-07-11 SGX719 - Jul 11, 20:05 UTCJul 11, 20:45 UTC40m
2026-07-10 SGX719 YQB → BTV Jul 10, 14:20 UTCJul 10, 15:05 UTC45m
2026-07-10 SGX719 - Jul 10, 01:30 UTCJul 10, 02:25 UTC55m
2026-07-09 SGX719 - Jul 9, 21:45 UTCJul 9, 23:30 UTC1h 45m
2026-07-09 SGX719 MSN → IND Jul 9, 05:10 UTCJul 9, 05:55 UTC45m
2026-07-09 SGX719 - Jul 9, 02:10 UTCJul 9, 02:45 UTC35m
2026-07-07 SGX719 - Jul 7, 16:45 UTCJul 7, 18:45 UTC2h 0m
2026-07-07 SGX719 - Jul 7, 14:40 UTCJul 7, 15:10 UTC30m
2026-07-06 SGX719 - Jul 6, 18:40 UTCJul 6, 20:40 UTC2h 0m
2026-07-06 SGX719 - Jul 6, 15:50 UTCJul 6, 17:35 UTC1h 45m
2026-07-06 SGX719 - Jul 6, 13:20 UTCJul 6, 13:55 UTC35m
2026-07-05 SGX719 - Jul 5, 20:15 UTCJul 5, 22:55 UTC2h 40m
2026-07-05 SGX719 - Jul 5, 19:10 UTCJul 5, 19:20 UTC10m
2026-07-05 SGX719 - Jul 5, 15:45 UTCJul 5, 18:25 UTC2h 40m
2026-07-04 SGX719 - Jul 4, 20:00 UTCJul 4, 20:30 UTC30m
2026-07-03 SGX719 - Jul 3, 17:50 UTCJul 3, 20:35 UTC2h 45m
2026-07-03 SGX719 ATL → FLL Jul 3, 15:20 UTCJul 3, 16:50 UTC1h 30m
2026-07-03 SGX719 - Jul 3, 12:35 UTCJul 3, 14:30 UTC1h 55m
2026-07-02 SGX719 - Jul 2, 20:20 UTCJul 2, 20:45 UTC25m
2026-07-02 SGX719 - Jul 2, 17:10 UTCJul 2, 19:05 UTC1h 55m
2026-07-02 SGX719 - Jul 2, 13:10 UTCJul 2, 15:30 UTC2h 20m
2026-07-01 SGX719 - Jul 1, 19:25 UTCJul 1, 19:45 UTC20m
2026-07-01 SGX719 IAD → YUL Jul 1, 17:15 UTCJul 1, 18:30 UTC1h 15m
2026-07-01 SGX719 BED → IAD Jul 1, 13:45 UTCJul 1, 14:50 UTC1h 5m
2026-06-30 SGX719 - Jun 30, 15:25 UTCJun 30, 18:05 UTC2h 40m
2026-06-29 SGX719 - Jun 29, 19:44 UTCJun 29, 21:34 UTC1h 50m
2026-06-29 SGX719 - Jun 29, 14:14 UTCJun 29, 16:29 UTC2h 15m
2026-06-28 SGX719 - Jun 28, 19:40 UTCJun 28, 21:14 UTC1h 35m
2026-06-28 SGX719 - Jun 28, 16:35 UTCJun 28, 17:44 UTC1h 10m
2026-06-28 SGX719 - Jun 28, 12:35 UTCJun 28, 13:10 UTC35m
2026-06-27 SGX719 - Jun 27, 15:30 UTCJun 27, 18:35 UTC3h 5m
2026-06-27 SGX719 - Jun 27, 13:24 UTCJun 27, 13:40 UTC15m
2026-06-25 SGX719 - Jun 25, 14:14 UTCJun 25, 16:55 UTC2h 40m
2026-06-25 SGX719 - Jun 25, 11:04 UTCJun 25, 12:54 UTC1h 50m
2026-06-24 SGX719 - Jun 24, 21:24 UTCJun 24, 23:04 UTC1h 40m
2026-06-24 SGX719 - Jun 24, 17:29 UTCJun 24, 18:39 UTC1h 10m
2026-06-24 SGX719 - Jun 24, 15:00 UTCJun 24, 16:19 UTC1h 20m
2026-06-23 SGX719 - Jun 23, 20:15 UTCJun 23, 21:45 UTC1h 30m
2026-06-23 SGX719 YWG → MDW Jun 23, 01:00 UTCJun 23, 02:40 UTC1h 40m
2026-06-22 SGX719 ABE → YWG Jun 22, 18:04 UTCJun 22, 21:10 UTC3h 5m
2026-06-22 SGX719 - Jun 22, 15:20 UTCJun 22, 15:59 UTC40m
2026-06-21 SGX719 - Jun 21, 20:14 UTCJun 21, 22:04 UTC1h 50m
2026-06-21 SGX719 - Jun 21, 16:59 UTCJun 21, 19:00 UTC2h 0m
2026-06-21 SGX719 - Jun 21, 14:44 UTCJun 21, 14:59 UTC15m
2026-06-20 SGX719 - Jun 20, 15:29 UTCJun 20, 16:59 UTC1h 30m

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 N719AV page for operator, model, and routing details .

Mode-S A99D90 frequently asked

What is Mode-S code A99D90?
A99D90 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N719AV.
Where is Mode-S A99D90 registered?
Mode-S code A99D90 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 A99D90 broadcasting right now?
Yes. Mode-S A99D90 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99D90, octal 52316620, decimal 11,115,920.
What flights does A99D90 operate?
Mode-S A99D90 has broadcast 1 distinct callsign, including SGX719.