Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A53006

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N433UA · AIRBUS A-320 · operated by UNITED AIRLINES INC

Hex
A53006
Octal
51230006
Decimal
10,825,734
Country
US
Tail
N433UA
Type
A320
No current signal · last broadcast 1d ago
Flights observed
287
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A53006.

Country allocation

The ICAO 24-bit address A53006 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
UAL2193 - 7 2026-07-11
UAL611 - 5 2026-04-13
UAL1717 United Airlines 5 2026-06-13
UAL1007 - 5 2026-07-11
UAL576 United Airlines 4 2026-05-25
UAL704 United Airlines 3 2026-05-04
UAL693 United Airlines 3 2026-04-14
UAL649 United Airlines 3 2026-06-14
UAL561 United Airlines 3 2026-04-19
UAL2832 United Airlines 3 2026-06-05
UAL2831 United Airlines 3 2026-06-20
UAL224 United Airlines 3 2026-05-24
UAL2114 United Airlines 3 2026-04-14
UAL1989 United Airlines 3 2026-04-19
UAL1400 United Airlines 3 2026-05-20
UAL1376 United Airlines 3 2026-04-14
UAL8186 United Airlines 2 2026-04-21
UAL817 - 2 2026-06-18
UAL792 United Airlines 2 2026-06-09
UAL764 United Airlines 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 UAL454 DFW → SFO Jul 12, 20:50 UTCJul 13, 00:05 UTC3h 15m
2026-07-12 UAL1062 - Jul 12, 16:01 UTCJul 12, 19:20 UTC3h 20m
2026-07-12 UAL2647 - Jul 12, 14:01 UTCJul 12, 14:50 UTC50m
2026-07-12 UAL2179 MSY → ORD Jul 12, 05:58 UTCJul 12, 06:39 UTC41m
2026-07-12 UAL2179 - Jul 12, 05:45 UTCJul 12, 06:45 UTC1h 0m
2026-07-11 UAL2193 - Jul 11, 18:55 UTCJul 11, 23:25 UTC4h 30m
2026-07-11 UAL565 - Jul 11, 18:00 UTCJul 11, 19:20 UTC1h 20m
2026-07-11 UAL1578 SEA → SFO Jul 11, 14:50 UTCJul 11, 16:55 UTC2h 5m
2026-07-11 UAL1007 - Jul 11, 04:10 UTCJul 11, 05:40 UTC1h 30m
2026-07-11 UAL1007 SAT → DEN Jul 11, 04:09 UTCJul 11, 05:29 UTC1h 20m
2026-07-11 UAL2164 - Jul 11, 01:05 UTCJul 11, 02:55 UTC1h 50m
2026-07-10 UAL1265 SFO → SEA Jul 10, 21:30 UTCJul 10, 23:10 UTC1h 40m
2026-07-10 UAL1265 SFO → SEA Jul 10, 21:30 UTCJul 10, 23:00 UTC1h 30m
2026-07-10 UAL3927 - Jul 10, 16:00 UTCJul 10, 19:30 UTC3h 30m
2026-07-09 UAL2196 - Jul 9, 15:00 UTCJul 9, 15:40 UTC40m
2026-07-09 UAL2016 - Jul 9, 12:50 UTCJul 9, 13:20 UTC30m
2026-07-08 UAL2460 - Jul 8, 12:50 UTCJul 8, 15:05 UTC2h 15m
2026-07-08 UAL2378 - Jul 8, 03:50 UTCJul 8, 06:00 UTC2h 10m
2026-07-08 UAL3899 - Jul 8, 00:15 UTCJul 8, 02:20 UTC2h 5m
2026-07-07 UAL3899 LCQ → IAH Jul 7, 23:43 UTCJul 8, 02:10 UTC2h 27m
2026-06-23 UAL3898 - Jun 23, 02:49 UTCJun 23, 04:45 UTC1h 55m
2026-06-22 UAL1564 BOS → ORD Jun 22, 23:10 UTCJun 23, 01:00 UTC1h 50m
2026-06-22 UAL578 ORD → PHL Jun 22, 20:14 UTCJun 22, 21:40 UTC1h 25m
2026-06-22 UAL1505 - Jun 22, 16:14 UTCJun 22, 18:19 UTC2h 5m
2026-06-22 UAL1482 DEN → SEA Jun 22, 12:15 UTCJun 22, 14:45 UTC2h 30m
2026-06-21 UAL1656 DEN → DEN Jun 21, 22:20 UTCJun 21, 23:00 UTC40m
2026-06-21 UAL2793 IAD → EWR Jun 21, 18:25 UTCJun 21, 20:34 UTC2h 10m
2026-06-21 UAL2793 IAD → EWR Jun 21, 18:15 UTCJun 21, 20:25 UTC2h 10m
2026-06-21 UAL1247 DEN → PDX Jun 21, 14:34 UTCJun 21, 16:49 UTC2h 15m
2026-06-21 UAL1442 IAH → EWR Jun 21, 11:40 UTCJun 21, 13:00 UTC1h 20m
2026-06-21 UAL1321 - Jun 21, 02:15 UTCJun 21, 05:49 UTC3h 35m
2026-06-21 UAL1321 SFO → OMA Jun 21, 02:19 UTCJun 21, 05:29 UTC3h 10m
2026-06-20 UAL1702 - Jun 20, 19:19 UTCJun 21, 00:34 UTC5h 15m
2026-06-20 UAL2831 SEA → SFO Jun 20, 16:29 UTCJun 20, 18:04 UTC1h 35m
2026-06-20 UAL1007 SFO → SEA Jun 20, 05:09 UTCJun 20, 06:39 UTC1h 30m
2026-06-20 UAL1007 SFO → SEA Jun 20, 05:04 UTCJun 20, 06:30 UTC1h 26m
2026-06-20 UAL442 AUS → SFO Jun 20, 00:19 UTCJun 20, 03:54 UTC3h 35m
2026-06-19 UAL1326 SFO → AUS Jun 19, 19:54 UTCJun 19, 23:09 UTC3h 15m
2026-06-19 UAL718 MEX → SFO Jun 19, 14:04 UTCJun 19, 17:59 UTC3h 55m
2026-06-19 UAL718 MEX → SFO Jun 19, 14:04 UTCJun 19, 17:59 UTC3h 55m
2026-06-18 UAL817 SFO → MEX Jun 18, 22:44 UTCJun 19, 03:08 UTC4h 24m
2026-06-18 UAL817 - Jun 18, 22:35 UTCJun 19, 01:29 UTC2h 54m
2026-06-18 UAL737 - Jun 18, 19:00 UTCJun 18, 20:45 UTC1h 45m
2026-06-18 UAL1708 MCO → EWR Jun 18, 14:15 UTCJun 18, 15:45 UTC1h 30m
2026-06-17 UAL1702 SFO → SFO Jun 17, 19:30 UTCJun 18, 00:25 UTC4h 55m
2026-06-17 UAL2831 SEA → SFO Jun 17, 16:08 UTCJun 17, 18:17 UTC2h 9m
2026-06-17 UAL2831 SEA → SFO Jun 17, 16:15 UTCJun 17, 18:25 UTC2h 10m
2026-06-17 UAL1007 SFO → SEA Jun 17, 04:35 UTCJun 17, 06:10 UTC1h 35m
2026-06-17 UAL357 IAD → SFO Jun 17, 01:10 UTCJun 17, 02:05 UTC55m
2026-06-16 UAL626 - Jun 16, 23:20 UTCJun 17, 00:10 UTC50m

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 N433UA page for operator, model, and routing details .

Mode-S A53006 frequently asked

What is Mode-S code A53006?
A53006 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N433UA.
Where is Mode-S A53006 registered?
Mode-S code A53006 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 A53006 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A53006, octal 51230006, decimal 10,825,734.
What flights does A53006 operate?
Mode-S A53006 has broadcast 20 distinct callsigns, including UAL2193, UAL611, UAL1717, UAL1007, UAL576.