Apparatus

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sensors Mode-S transponder

A12096

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N17196 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A12096
Octal
50220226
Decimal
10,559,638
Country
US
Tail
N17196
Type
E45X
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
505
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S A12096.

Country allocation

The ICAO 24-bit address A12096 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
UCA4970 - 8 2026-07-08
UCA4961 - 8 2026-07-08
UCA4812 - 7 2026-07-14
UCA4341 CommutAir 7 2026-07-25
UCA4958 - 6 2026-07-08
UCA4889 CommutAir 6 2026-07-25
UCA4959 - 5 2026-06-25
UCA4942 CommutAir 5 2026-07-26
UCA4333 - 5 2026-07-15
UCA4308 - 5 2026-07-15
UCA4295 - 5 2026-07-17
UCA4281 - 5 2026-07-15
UCA4269 - 5 2026-07-01
UCA4977 - 4 2026-07-16
UCA4964 - 4 2026-06-29
UCA4962 - 4 2026-06-25
UCA4939 CommutAir 4 2026-06-14
UCA4926 - 4 2026-07-07
UCA4909 - 4 2026-06-29
UCA4894 CommutAir 4 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UCA4942 ALB → IAD Jul 26, 19:05 UTCJul 26, 20:10 UTC1h 5m
2026-07-26 UCA4317 IAD → ALB Jul 26, 16:50 UTCJul 26, 17:45 UTC55m
2026-07-26 UCA4857 MHT → IAD Jul 26, 13:40 UTCJul 26, 14:55 UTC1h 15m
2026-07-26 UCA4270 MFE → IAH Jul 26, 02:20 UTCJul 26, 03:30 UTC1h 10m
2026-07-26 UCA4270 MFE → IAH Jul 26, 02:28 UTCJul 26, 03:31 UTC1h 3m
2026-07-25 UCA4291 IAD → YUL Jul 25, 23:45 UTCJul 26, 00:40 UTC55m
2026-07-25 UCA4291 IAD → YUL Jul 25, 23:58 UTCJul 26, 00:38 UTC40m
2026-07-25 UCA4341 PWM → IAD Jul 25, 21:50 UTCJul 25, 22:45 UTC55m
2026-07-25 UCA4925 MHT → IAD Jul 25, 18:45 UTCJul 25, 20:05 UTC1h 20m
2026-07-25 UCA4925 MHT → IAD Jul 25, 18:53 UTCJul 25, 20:03 UTC1h 10m
2026-07-25 UCA4930 IAD → MHT Jul 25, 16:36 UTCJul 25, 17:31 UTC55m
2026-07-25 UCA4930 IAD → MHT Jul 25, 16:25 UTCJul 25, 17:35 UTC1h 10m
2026-07-25 UCA4889 ALB → IAD Jul 25, 14:15 UTCJul 25, 15:25 UTC1h 10m
2026-07-21 UCA3263 YQB → IAD Jul 21, 21:00 UTCJul 21, 23:00 UTC2h 0m
2026-07-21 UCA3263 YQB → IAD Jul 21, 20:15 UTCJul 21, 23:00 UTC2h 45m
2026-07-21 UCA4315 IAH → HSV Jul 21, 15:25 UTCJul 21, 16:55 UTC1h 30m
2026-07-21 UCA4315 IAH → HSV Jul 21, 15:27 UTCJul 21, 16:48 UTC1h 21m
2026-07-20 UCA4851 - Jul 20, 16:55 UTCJul 20, 18:15 UTC1h 20m
2026-07-20 UCA4225 IAH → LCH Jul 20, 14:20 UTCJul 20, 15:30 UTC1h 10m
2026-07-20 UCA4225 IAH → LCH Jul 20, 14:29 UTCJul 20, 15:44 UTC1h 15m
2026-07-20 UCA4330 LCH → IAH Jul 20, 12:45 UTCJul 20, 13:10 UTC25m
2026-07-20 UCA4985 - Jul 20, 02:25 UTCJul 20, 02:40 UTC15m
2026-07-19 UCA4303 - Jul 19, 23:55 UTCJul 20, 01:00 UTC1h 5m
2026-07-19 UCA4303 PNS → IAH Jul 19, 23:51 UTCJul 20, 00:59 UTC1h 8m
2026-07-19 UCA4869 IAD → BTV Jul 19, 20:55 UTCJul 19, 22:15 UTC1h 20m
2026-07-19 UCA4869 IAD → BTV Jul 19, 20:34 UTCJul 19, 22:12 UTC1h 38m
2026-07-19 UCA4928 - Jul 19, 17:20 UTCJul 19, 18:00 UTC40m
2026-07-19 UCA4894 IAH → CRP Jul 19, 15:20 UTCJul 19, 16:00 UTC40m
2026-07-19 UCA4264 - Jul 19, 12:40 UTCJul 19, 13:30 UTC50m
2026-07-18 UCA4278 IAD → CHS Jul 18, 21:35 UTCJul 18, 22:15 UTC40m
2026-07-18 UCA4289 - Jul 18, 19:30 UTCJul 18, 20:15 UTC45m
2026-07-18 UCA4896 IAH → JAN Jul 18, 17:25 UTCJul 18, 18:10 UTC45m
2026-07-18 UCA4989 MOB → IAH Jul 18, 14:15 UTCJul 18, 15:20 UTC1h 5m
2026-07-17 UCA4295 IAD → MOB Jul 17, 23:07 UTCJul 18, 01:19 UTC2h 12m
2026-07-17 UCA4295 - Jul 17, 22:55 UTCJul 18, 01:25 UTC2h 30m
2026-07-17 UCA4327 IAD → SYR Jul 17, 20:20 UTCJul 17, 21:00 UTC40m
2026-07-17 UCA4327 IAD → SYR Jul 17, 20:18 UTCJul 17, 20:59 UTC41m
2026-07-17 UCA4349 IAD → BTV Jul 17, 18:25 UTCJul 17, 19:09 UTC45m
2026-07-17 UCA4283 IAD → CMH Jul 17, 16:44 UTCJul 17, 17:29 UTC45m
2026-07-17 UCA4283 IAD → CMH Jul 17, 16:24 UTCJul 17, 17:30 UTC1h 5m
2026-07-17 UCA4818 - Jul 17, 12:45 UTCJul 17, 13:40 UTC55m
2026-07-16 UCA4853 - Jul 16, 23:55 UTCJul 17, 00:50 UTC55m
2026-07-16 UCA4977 IAD → SYR Jul 16, 21:48 UTCJul 16, 22:51 UTC1h 3m
2026-07-16 UCA4977 - Jul 16, 21:40 UTCJul 16, 22:30 UTC50m
2026-07-16 UCA4848 - Jul 16, 17:45 UTCJul 16, 18:55 UTC1h 10m
2026-07-16 UCA4257 - Jul 16, 13:10 UTCJul 16, 13:30 UTC20m
2026-07-16 UCA4257 IAD → TYS Jul 16, 13:17 UTCJul 16, 14:14 UTC57m
2026-07-16 UCA4922 ROA → IAD Jul 16, 10:25 UTCJul 16, 11:10 UTC45m
2026-07-16 UCA4897 IAD → ROA Jul 16, 02:45 UTCJul 16, 03:20 UTC35m
2026-07-16 UCA4810 - Jul 16, 00:25 UTCJul 16, 01:10 UTC45m

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 N17196 page for operator, model, and routing details .

Mode-S A12096 frequently asked

What is Mode-S code A12096?
A12096 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N17196.
Where is Mode-S A12096 registered?
Mode-S code A12096 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 A12096 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A12096, octal 50220226, decimal 10,559,638.
What flights does A12096 operate?
Mode-S A12096 has broadcast 20 distinct callsigns, including UCA4970, UCA4961, UCA4812, UCA4341, UCA4958.