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sensors Mode-S transponder

A05D92

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N12201 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A05D92
Octal
50056622
Decimal
10,509,714
Country
US
Tail
N12201
Type
E45X
No current signal · last broadcast Jul 26, 20:05 UTC
Flights observed
659
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:05 UTC

Last known position

Most recent position reported by Mode-S A05D92.

Country allocation

The ICAO 24-bit address A05D92 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
UCA4276 CommutAir 9 2026-05-21
UCA4347 CommutAir 8 2026-07-23
UCA4277 CommutAir 8 2026-05-21
UCA4996 CommutAir 7 2026-06-17
UCA4896 - 7 2026-07-07
UCA4858 CommutAir 7 2026-06-09
UCA4323 CommutAir 7 2026-07-24
UCA4282 CommutAir 7 2026-07-24
UCA4268 - 7 2026-07-17
UCA4238 CommutAir 7 2026-06-08
UCA4232 - 7 2026-07-05
UCA4950 - 6 2026-07-13
UCA4902 - 6 2026-07-14
UCA4372 CommutAir 6 2026-07-17
UCA4334 CommutAir 6 2026-07-23
UCA4245 CommutAir 6 2026-07-23
UCA4977 - 5 2026-07-12
UCA4939 - 5 2026-07-13
UCA4926 - 5 2026-07-11
UCA4901 - 5 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UCA4879 GPT → IAH Jul 26, 18:40 UTCJul 26, 20:05 UTC1h 25m
2026-07-26 UCA4878 MOB → IAH Jul 26, 16:10 UTCJul 26, 17:15 UTC1h 5m
2026-07-26 UCA4312 IAD → CVG Jul 26, 13:30 UTCJul 26, 14:35 UTC1h 5m
2026-07-25 UCA4379 IAH → BTR Jul 25, 21:50 UTCJul 25, 22:50 UTC1h 0m
2026-07-25 UCA4379 IAH → BTR Jul 25, 21:46 UTCJul 25, 22:41 UTC55m
2026-07-25 UCA4366 IAH → LRD Jul 25, 19:50 UTCJul 25, 20:35 UTC45m
2026-07-25 UCA4366 IAH → LRD Jul 25, 19:54 UTCJul 25, 20:41 UTC47m
2026-07-25 UCA4878 MOB → IAH Jul 25, 16:10 UTCJul 25, 17:15 UTC1h 5m
2026-07-24 UCA4323 DEN → DRO Jul 24, 22:05 UTCJul 24, 22:55 UTC50m
2026-07-24 UCA4323 DEN → DRO Jul 24, 21:59 UTCJul 24, 23:03 UTC1h 4m
2026-07-24 UCA4326 IAD → YUL Jul 24, 20:05 UTCJul 24, 20:50 UTC45m
2026-07-24 UCA4336 IAD → PVD Jul 24, 18:15 UTCJul 24, 19:00 UTC45m
2026-07-24 UCA4282 IAD → TYS Jul 24, 14:30 UTCJul 24, 15:20 UTC50m
2026-07-24 UCA4320 IAH → JAN Jul 24, 01:50 UTCJul 24, 02:35 UTC45m
2026-07-24 UCA4320 IAH → JAN Jul 24, 01:42 UTCJul 24, 02:50 UTC1h 8m
2026-07-23 UCA4339 IAD → ROA Jul 23, 22:25 UTCJul 24, 00:20 UTC1h 55m
2026-07-23 UCA4275 CRP → IAH Jul 23, 19:40 UTCJul 23, 22:30 UTC2h 50m
2026-07-23 UCA4275 CRP → IAH Jul 23, 19:39 UTCJul 23, 21:03 UTC1h 24m
2026-07-23 UCA4245 JAN → IAH Jul 23, 17:20 UTCJul 23, 18:10 UTC50m
2026-07-23 UCA4347 IAH → JAN Jul 23, 15:10 UTCJul 23, 15:55 UTC45m
2026-07-23 UCA4347 IAH → JAN Jul 23, 15:17 UTCJul 23, 16:02 UTC45m
2026-07-23 UCA4318 - Jul 23, 12:25 UTCJul 23, 13:10 UTC45m
2026-07-23 UCA4334 IAD → PVD Jul 23, 00:25 UTCJul 23, 01:10 UTC45m
2026-07-22 UCA4379 IAH → BTR Jul 22, 21:55 UTCJul 22, 22:50 UTC55m
2026-07-22 UCA4366 IAH → LRD Jul 22, 19:45 UTCJul 22, 20:25 UTC40m
2026-07-22 UCA4851 - Jul 22, 17:00 UTCJul 22, 18:20 UTC1h 20m
2026-07-22 UCA4225 IAH → LCH Jul 22, 14:20 UTCJul 22, 16:05 UTC1h 45m
2026-07-21 UCA4378 PVD → IAD Jul 21, 17:20 UTCJul 21, 18:45 UTC1h 25m
2026-07-21 UCA4358 IAD → PVD Jul 21, 15:10 UTCJul 21, 16:25 UTC1h 15m
2026-07-21 UCA4844 PWM → IAD Jul 21, 12:10 UTCJul 21, 13:25 UTC1h 15m
2026-07-20 UCA4295 - Jul 20, 23:40 UTCJul 21, 01:35 UTC1h 55m
2026-07-20 UCA4848 TYS → IAD Jul 20, 17:50 UTCJul 20, 19:00 UTC1h 10m
2026-07-18 UCA4914 IAD → TYS Jul 18, 12:00 UTCJul 18, 13:00 UTC1h 0m
2026-07-17 UCA4268 - Jul 17, 23:30 UTCJul 18, 00:04 UTC35m
2026-07-17 UCA4268 MDT → IAD Jul 17, 23:05 UTCJul 18, 00:01 UTC56m
2026-07-17 UCA4372 IAD → MDT Jul 17, 22:10 UTCJul 17, 22:35 UTC25m
2026-07-17 UCA4340 HSV → IAD Jul 17, 19:15 UTCJul 17, 20:44 UTC1h 30m
2026-07-17 UCA4315 IAH → HSV Jul 17, 15:25 UTCJul 17, 16:49 UTC1h 25m
2026-07-17 UCA4318 - Jul 17, 12:45 UTCJul 17, 13:35 UTC50m
2026-07-16 UCA4334 - Jul 16, 23:59 UTCJul 17, 00:40 UTC40m
2026-07-16 UCA4379 - Jul 16, 21:45 UTCJul 16, 22:35 UTC50m
2026-07-16 UCA4827 - Jul 16, 19:45 UTCJul 16, 20:35 UTC50m
2026-07-16 UCA4827 - Jul 16, 17:10 UTCJul 16, 18:40 UTC1h 30m
2026-07-16 UCA4821 IAH → AMA Jul 16, 14:50 UTCJul 16, 15:56 UTC1h 6m
2026-07-16 UCA4226 - Jul 16, 12:44 UTCJul 16, 13:45 UTC1h 0m
2026-07-16 UCA4285 - Jul 16, 00:00 UTCJul 16, 00:50 UTC50m
2026-07-15 UCA4365 - Jul 15, 22:25 UTCJul 15, 23:10 UTC45m
2026-07-15 UCA4365 BRO → IAH Jul 15, 22:16 UTCJul 15, 23:09 UTC53m
2026-07-15 UCA4929 - Jul 15, 20:35 UTCJul 15, 21:15 UTC40m
2026-07-15 UCA4255 - Jul 15, 16:50 UTCJul 15, 18:20 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 N12201 page for operator, model, and routing details .

Mode-S A05D92 frequently asked

What is Mode-S code A05D92?
A05D92 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N12201.
Where is Mode-S A05D92 registered?
Mode-S code A05D92 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 A05D92 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A05D92, octal 50056622, decimal 10,509,714.
What flights does A05D92 operate?
Mode-S A05D92 has broadcast 20 distinct callsigns, including UCA4276, UCA4347, UCA4277, UCA4996, UCA4896.