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sensors Mode-S transponder

A03398

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N11192 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A03398
Octal
50031630
Decimal
10,498,968
Country
US
Tail
N11192
Type
E45X
Broadcasting now · callsign UCA4225 · 23,125 ft
Flights observed
561
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:20 UTC

Current position

A03398 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A03398 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
UCA4929 - 9 2026-07-18
UCA4934 - 8 2026-07-14
UCA4921 - 8 2026-07-14
UCA4837 CommutAir 8 2026-07-25
UCA4365 - 8 2026-07-18
UCA4820 - 7 2026-06-24
UCA4336 - 7 2026-07-11
UCA4294 - 7 2026-06-24
UCA4279 - 7 2026-07-16
UCA4254 - 7 2026-07-11
UCA4859 CommutAir 6 2026-07-21
UCA4830 - 6 2026-07-06
UCA4354 CommutAir 6 2026-07-21
UCA4346 - 6 2026-07-15
UCA4284 CommutAir 6 2026-07-24
UCA4264 - 6 2026-07-20
UCA4239 - 6 2026-07-19
UCA4989 CommutAir 5 2026-06-18
UCA4928 CommutAir 5 2026-06-15
UCA4863 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UCA4276 IAH → PBC Jul 26, 15:25 UTCJul 26, 17:15 UTC1h 50m
2026-07-26 UCA4299 HSV → IAH Jul 26, 11:55 UTCJul 26, 13:20 UTC1h 25m
2026-07-26 UCA4299 HSV → IAH Jul 26, 12:01 UTCJul 26, 13:24 UTC1h 23m
2026-07-26 UCA4292 IAH → HSV Jul 26, 01:20 UTCJul 26, 02:50 UTC1h 30m
2026-07-25 UCA4277 DEN → XNA Jul 25, 18:35 UTCJul 25, 20:35 UTC2h 0m
2026-07-25 UCA4276 IAH → PBC Jul 25, 15:45 UTCJul 25, 17:35 UTC1h 50m
2026-07-25 UCA4837 BTR → IAH Jul 25, 12:25 UTCJul 25, 13:25 UTC1h 0m
2026-07-25 UCA4337 TUL → IAH Jul 25, 01:30 UTCJul 25, 02:25 UTC55m
2026-07-25 UCA4337 TUL → IAH Jul 25, 01:32 UTCJul 25, 02:27 UTC55m
2026-07-24 UCA4277 DEN → XNA Jul 24, 18:30 UTCJul 24, 20:25 UTC1h 55m
2026-07-24 UCA4277 DEN → XNA Jul 24, 18:43 UTCJul 24, 20:24 UTC1h 41m
2026-07-24 UCA4276 IAH → PBC Jul 24, 15:30 UTCJul 24, 17:15 UTC1h 45m
2026-07-24 UCA4276 IAH → PBC Jul 24, 15:26 UTCJul 24, 17:13 UTC1h 47m
2026-07-24 UCA4299 HSV → IAH Jul 24, 11:55 UTCJul 24, 13:20 UTC1h 25m
2026-07-24 UCA4284 GSO → IAD Jul 24, 01:00 UTCJul 24, 02:25 UTC1h 25m
2026-07-24 UCA4284 GSO → IAD Jul 24, 00:22 UTCJul 24, 02:28 UTC2h 6m
2026-07-22 UCA4318 - Jul 22, 12:30 UTCJul 22, 13:15 UTC45m
2026-07-22 UCA4334 IAD → PVD Jul 22, 00:05 UTCJul 22, 00:50 UTC45m
2026-07-22 UCA4334 IAD → PVD Jul 22, 00:02 UTCJul 22, 01:10 UTC1h 8m
2026-07-21 UCA4859 LBB → IAH Jul 21, 19:35 UTCJul 21, 20:50 UTC1h 15m
2026-07-21 UCA4859 LBB → IAH Jul 21, 19:45 UTCJul 21, 20:41 UTC56m
2026-07-21 UCA4354 SYR → IAD Jul 21, 17:15 UTCJul 21, 18:20 UTC1h 5m
2026-07-21 UCA4271 BRO → IAH Jul 21, 14:30 UTCJul 21, 15:35 UTC1h 5m
2026-07-20 UCA4832 OKC → IAH Jul 20, 22:30 UTCJul 20, 23:05 UTC35m
2026-07-20 UCA4378 PVD → IAD Jul 20, 17:25 UTCJul 20, 18:50 UTC1h 25m
2026-07-20 UCA4358 IAD → PVD Jul 20, 15:00 UTCJul 20, 16:20 UTC1h 20m
2026-07-20 UCA4264 - Jul 20, 12:45 UTCJul 20, 13:35 UTC50m
2026-07-20 UCA4828 LIT → IAH Jul 20, 03:00 UTCJul 20, 03:50 UTC50m
2026-07-20 UCA4290 - Jul 20, 00:05 UTCJul 20, 01:20 UTC1h 15m
2026-07-20 UCA4290 TUL → IAH Jul 20, 00:12 UTCJul 20, 01:31 UTC1h 19m
2026-07-19 UCA4239 - Jul 19, 21:40 UTCJul 19, 22:45 UTC1h 5m
2026-07-19 UCA4239 IAH → TUL Jul 19, 21:49 UTCJul 19, 22:46 UTC57m
2026-07-19 UCA4374 - Jul 19, 19:10 UTCJul 19, 20:00 UTC50m
2026-07-19 UCA4904 - Jul 19, 17:25 UTCJul 19, 18:20 UTC55m
2026-07-19 UCA4947 - Jul 19, 14:50 UTCJul 19, 15:40 UTC50m
2026-07-19 UCA4260 - Jul 19, 13:00 UTCJul 19, 13:45 UTC45m
2026-07-18 UCA4365 - Jul 18, 21:55 UTCJul 18, 22:40 UTC45m
2026-07-18 UCA4929 - Jul 18, 19:40 UTCJul 18, 20:20 UTC40m
2026-07-18 UCA4338 IAD → CMH Jul 18, 16:50 UTCJul 18, 18:10 UTC1h 20m
2026-07-18 UCA4297 IAD → PVD Jul 18, 14:50 UTCJul 18, 15:55 UTC1h 5m
2026-07-18 UCA4837 - Jul 18, 12:20 UTCJul 18, 13:15 UTC55m
2026-07-18 UCA4337 TUL → IAH Jul 18, 01:30 UTCJul 18, 02:19 UTC50m
2026-07-17 UCA4996 - Jul 17, 22:25 UTCJul 17, 23:55 UTC1h 30m
2026-07-17 UCA4911 - Jul 17, 19:55 UTCJul 17, 21:10 UTC1h 15m
2026-07-17 UCA4911 IAH → SGF Jul 17, 19:59 UTCJul 17, 21:04 UTC1h 5m
2026-07-17 UCA4258 - Jul 17, 16:55 UTCJul 17, 18:05 UTC1h 10m
2026-07-17 UCA4293 - Jul 17, 13:15 UTCJul 17, 14:20 UTC1h 5m
2026-07-17 UCA4293 IAH → PNS Jul 17, 13:16 UTCJul 17, 14:30 UTC1h 14m
2026-07-16 UCA4353 - Jul 16, 23:20 UTCJul 17, 00:25 UTC1h 5m
2026-07-16 UCA4278 - Jul 16, 21:40 UTCJul 16, 22:25 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 N11192 page for operator, model, and routing details .

Mode-S A03398 frequently asked

What is Mode-S code A03398?
A03398 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N11192.
Where is Mode-S A03398 registered?
Mode-S code A03398 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 A03398 broadcasting right now?
Yes. Mode-S A03398 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A03398, octal 50031630, decimal 10,498,968.
What flights does A03398 operate?
Mode-S A03398 has broadcast 20 distinct callsigns, including UCA4929, UCA4934, UCA4921, UCA4837, UCA4365.