Apparatus

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sensors Mode-S transponder

A99033

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N715SC · operated by RUNAMUCK LLC

Hex
A99033
Octal
52310063
Decimal
11,112,499
Country
US
Tail
N715SC
Type
P28A
Broadcasting now · callsign SCU38 · 4,275 ft
Flights observed
157
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Current position

A99033 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A99033 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
SCU38 - 157 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SCU38 - Jul 14, 15:55 UTCJul 14, 16:45 UTC50m
2026-07-14 SCU38 - Jul 14, 13:30 UTCJul 14, 13:55 UTC25m
2026-07-13 SCU38 - Jul 13, 23:20 UTCJul 14, 00:00 UTC40m
2026-07-13 SCU38 - Jul 13, 15:25 UTCJul 13, 16:00 UTC35m
2026-07-12 SCU38 - Jul 12, 23:25 UTCJul 13, 00:30 UTC1h 5m
2026-07-12 SCU38 - Jul 12, 21:05 UTCJul 12, 21:45 UTC40m
2026-07-12 SCU38 - Jul 12, 18:15 UTCJul 12, 19:05 UTC50m
2026-07-12 SCU38 - Jul 12, 16:10 UTCJul 12, 16:25 UTC15m
2026-07-11 SCU38 - Jul 11, 21:30 UTCJul 11, 21:50 UTC20m
2026-07-11 SCU38 - Jul 11, 18:05 UTCJul 11, 19:00 UTC55m
2026-07-11 SCU38 - Jul 11, 15:55 UTCJul 11, 16:40 UTC45m
2026-07-11 SCU38 - Jul 11, 03:15 UTCJul 11, 05:35 UTC2h 20m
2026-07-10 SCU38 - Jul 10, 22:30 UTCJul 10, 23:05 UTC35m
2026-07-10 SCU38 - Jul 10, 18:35 UTCJul 10, 20:55 UTC2h 20m
2026-07-10 SCU38 - Jul 10, 15:05 UTCJul 10, 15:45 UTC40m
2026-07-09 SCU38 - Jul 9, 21:00 UTCJul 9, 21:45 UTC45m
2026-07-09 SCU38 - Jul 9, 18:10 UTCJul 9, 19:00 UTC50m
2026-07-09 SCU38 - Jul 9, 00:00 UTCJul 9, 00:50 UTC50m
2026-07-08 SCU38 - Jul 8, 21:45 UTCJul 8, 22:25 UTC40m
2026-07-03 SCU38 - Jul 3, 14:15 UTCJul 3, 14:55 UTC40m
2026-07-02 SCU38 - Jul 2, 19:00 UTCJul 2, 19:15 UTC15m
2026-07-02 SCU38 - Jul 2, 14:15 UTCJul 2, 14:30 UTC15m
2026-07-01 SCU38 - Jul 1, 19:10 UTCJul 1, 20:00 UTC50m
2026-07-01 SCU38 - Jul 1, 16:15 UTCJul 1, 16:25 UTC10m
2026-07-01 SCU38 - Jul 1, 14:05 UTCJul 1, 14:25 UTC20m
2026-06-30 SCU38 - Jun 30, 23:25 UTCJul 1, 00:05 UTC40m
2026-06-30 SCU38 - Jun 30, 20:30 UTCJun 30, 20:55 UTC25m
2026-06-30 SCU38 - Jun 30, 17:50 UTCJun 30, 18:15 UTC25m
2026-06-30 SCU38 - Jun 30, 15:35 UTCJun 30, 16:40 UTC1h 5m
2026-06-30 SCU38 - Jun 30, 00:04 UTCJun 30, 00:30 UTC25m
2026-06-29 SCU38 - Jun 29, 21:24 UTCJun 29, 22:00 UTC35m
2026-06-29 SCU38 - Jun 29, 16:19 UTCJun 29, 16:59 UTC40m
2026-06-28 SCU38 - Jun 28, 22:55 UTCJun 29, 01:20 UTC2h 25m
2026-06-27 SCU38 - Jun 27, 18:39 UTCJun 27, 20:14 UTC1h 35m
2026-06-26 SCU38 - Jun 26, 19:14 UTCJun 26, 19:55 UTC40m
2026-06-26 SCU38 - Jun 26, 16:39 UTCJun 26, 17:00 UTC20m
2026-06-26 SCU38 - Jun 26, 13:40 UTCJun 26, 14:09 UTC30m
2026-06-25 SCU38 - Jun 25, 19:15 UTCJun 25, 19:39 UTC25m
2026-06-25 SCU38 - Jun 25, 16:50 UTCJun 25, 17:49 UTC1h 0m
2026-06-24 SCU38 - Jun 24, 23:40 UTCJun 25, 00:35 UTC55m
2026-06-23 SCU38 - Jun 23, 23:55 UTCJun 24, 00:09 UTC15m
2026-06-23 SCU38 - Jun 23, 00:50 UTCJun 23, 01:45 UTC55m
2026-06-23 SCU38 - Jun 23, 00:09 UTCJun 23, 00:19 UTC10m
2026-06-22 SCU38 - Jun 22, 18:04 UTCJun 22, 18:49 UTC45m
2026-06-21 SCU38 - Jun 21, 00:45 UTCJun 21, 00:59 UTC15m
2026-06-19 SCU38 - Jun 19, 23:29 UTCJun 20, 00:29 UTC1h 0m
2026-06-19 SCU38 - Jun 19, 21:34 UTCJun 19, 21:59 UTC25m
2026-06-19 SCU38 - Jun 19, 20:59 UTCJun 19, 21:30 UTC30m
2026-06-18 SCU38 - Jun 18, 19:15 UTCJun 18, 19:45 UTC30m
2026-06-17 SCU38 - Jun 17, 21:25 UTCJun 17, 21:50 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 N715SC page for operator, model, and routing details .

Mode-S A99033 frequently asked

What is Mode-S code A99033?
A99033 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N715SC.
Where is Mode-S A99033 registered?
Mode-S code A99033 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 A99033 broadcasting right now?
Yes. Mode-S A99033 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99033, octal 52310063, decimal 11,112,499.
What flights does A99033 operate?
Mode-S A99033 has broadcast 1 distinct callsign, including SCU38.