Apparatus

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sensors Mode-S transponder

A0AC92

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N14203 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A0AC92
Octal
50126222
Decimal
10,529,938
Country
US
Tail
N14203
Type
E45X
No current signal · last broadcast 5h ago
Flights observed
537
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A0AC92.

Country allocation

The ICAO 24-bit address A0AC92 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 20 distinct

Callsign Airline Flights Last seen
UCA4945 - 9 2026-07-02
UCA4954 - 8 2026-07-02
UCA4831 - 7 2026-07-12
UCA4310 - 7 2026-07-12
UCA4810 - 6 2026-06-18
UCA4308 CommutAir 6 2026-06-17
UCA4250 - 6 2026-07-08
UCA4240 - 6 2026-07-12
UCA4926 - 5 2026-06-30
UCA4830 CommutAir 5 2026-06-04
UCA4332 - 5 2026-06-27
UCA4325 - 5 2026-06-28
UCA4313 - 5 2026-07-14
UCA4257 CommutAir 5 2026-06-18
UCA4241 CommutAir 5 2026-07-01
UCA4235 CommutAir 5 2026-06-09
UCA4986 - 4 2026-07-02
UCA4963 - 4 2026-07-14
UCA4942 - 4 2026-06-30
UCA4930 - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UCA4313 - Jul 14, 03:30 UTCJul 14, 04:40 UTC1h 10m
2026-07-14 UCA4963 - Jul 14, 01:45 UTCJul 14, 02:45 UTC1h 0m
2026-07-13 UCA4342 - Jul 13, 10:40 UTCJul 13, 11:05 UTC25m
2026-07-13 UCA4342 CHO → IAD Jul 13, 10:40 UTCJul 13, 11:05 UTC25m
2026-07-13 UCA4265 - Jul 13, 04:10 UTCJul 13, 04:25 UTC15m
2026-07-13 UCA4322 - Jul 13, 01:35 UTCJul 13, 03:05 UTC1h 30m
2026-07-12 UCA4310 - Jul 12, 23:00 UTCJul 13, 00:35 UTC1h 35m
2026-07-12 UCA4831 - Jul 12, 20:10 UTCJul 12, 20:20 UTC10m
2026-07-12 UCA4831 - Jul 12, 19:10 UTCJul 12, 20:20 UTC1h 10m
2026-07-12 UCA4831 ORF → IAD Jul 12, 19:13 UTCJul 12, 19:51 UTC38m
2026-07-12 UCA4240 IAD → ORF Jul 12, 17:15 UTCJul 12, 18:01 UTC45m
2026-07-12 UCA4240 - Jul 12, 13:20 UTCJul 12, 14:50 UTC1h 30m
2026-07-12 UCA4292 - Jul 12, 01:10 UTCJul 12, 02:35 UTC1h 25m
2026-07-12 UCA4292 IAH → HSV Jul 12, 01:08 UTCJul 12, 02:47 UTC1h 39m
2026-07-11 UCA4996 - Jul 11, 22:30 UTCJul 11, 23:55 UTC1h 25m
2026-07-11 UCA4911 - Jul 11, 19:45 UTCJul 11, 21:00 UTC1h 15m
2026-07-11 UCA4258 - Jul 11, 16:45 UTCJul 11, 18:05 UTC1h 20m
2026-07-11 UCA4293 - Jul 11, 13:10 UTCJul 11, 14:20 UTC1h 10m
2026-07-10 UCA4246 - Jul 10, 22:30 UTCJul 10, 23:30 UTC1h 0m
2026-07-10 UCA4246 GPT → IAH Jul 10, 22:30 UTCJul 10, 23:27 UTC57m
2026-07-10 UCA4273 - Jul 10, 20:00 UTCJul 10, 20:55 UTC55m
2026-07-10 UCA4822 - Jul 10, 16:30 UTCJul 10, 17:50 UTC1h 20m
2026-07-10 UCA4822 BHM → IAH Jul 10, 16:36 UTCJul 10, 17:48 UTC1h 12m
2026-07-10 UCA4231 - Jul 10, 12:55 UTCJul 10, 14:20 UTC1h 25m
2026-07-10 UCA4905 - Jul 10, 00:45 UTCJul 10, 02:10 UTC1h 25m
2026-07-09 UCA4286 - Jul 9, 17:15 UTCJul 9, 18:45 UTC1h 30m
2026-07-09 UCA4286 IAD → HSV Jul 9, 17:08 UTCJul 9, 18:48 UTC1h 40m
2026-07-09 UCA4834 - Jul 9, 14:50 UTCJul 9, 15:15 UTC25m
2026-07-09 UCA4319 - Jul 9, 13:00 UTCJul 9, 13:25 UTC25m
2026-07-09 UCA4244 - Jul 9, 10:20 UTCJul 9, 10:45 UTC25m
2026-07-09 UCA4244 MDT → IAD Jul 9, 10:31 UTCJul 9, 10:45 UTC14m
2026-07-09 UCA4964 - Jul 9, 02:30 UTCJul 9, 02:55 UTC25m
2026-07-09 UCA4882 - Jul 9, 00:05 UTCJul 9, 00:25 UTC20m
2026-07-08 UCA4250 - Jul 8, 22:15 UTCJul 8, 22:40 UTC25m
2026-07-08 UCA4230 - Jul 8, 19:40 UTCJul 8, 20:20 UTC40m
2026-07-08 UCA4230 AVP → IAD Jul 8, 19:27 UTCJul 8, 20:18 UTC51m
2026-07-08 UCA4234 - Jul 8, 17:45 UTCJul 8, 18:20 UTC35m
2026-07-08 UCA4227 - Jul 8, 14:45 UTCJul 8, 15:25 UTC40m
2026-07-08 UCA4227 AVP → IAD Jul 8, 14:47 UTCJul 8, 15:27 UTC40m
2026-07-08 UCA4965 - Jul 8, 12:50 UTCJul 8, 13:25 UTC35m
2026-07-08 UCA4251 - Jul 8, 10:30 UTCJul 8, 11:15 UTC45m
2026-07-08 UCA4849 IAD → GSO Jul 8, 02:33 UTCJul 8, 03:05 UTC32m
2026-07-08 UCA4849 - Jul 8, 02:30 UTCJul 8, 03:05 UTC35m
2026-07-08 UCA4238 - Jul 8, 00:00 UTCJul 8, 01:15 UTC1h 15m
2026-07-07 UCA4238 BTV → IAD Jul 7, 23:57 UTCJul 8, 01:11 UTC1h 14m
2026-07-07 UCA4302 - Jul 7, 21:55 UTCJul 7, 23:05 UTC1h 10m
2026-07-07 UCA4959 - Jul 7, 19:00 UTCJul 7, 20:00 UTC1h 0m
2026-07-07 UCA4962 - Jul 7, 16:55 UTCJul 7, 17:50 UTC55m
2026-07-07 UCA4889 - Jul 7, 14:15 UTCJul 7, 15:25 UTC1h 10m
2026-07-07 UCA4321 IAD → ALB Jul 7, 04:55 UTCJul 7, 05:50 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 N14203 page for operator, model, and routing details .

Mode-S A0AC92 frequently asked

What is Mode-S code A0AC92?
A0AC92 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N14203.
Where is Mode-S A0AC92 registered?
Mode-S code A0AC92 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 A0AC92 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0AC92, octal 50126222, decimal 10,529,938.
What flights does A0AC92 operate?
Mode-S A0AC92 has broadcast 20 distinct callsigns, including UCA4945, UCA4954, UCA4831, UCA4310, UCA4810.