Apparatus

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sensors Mode-S transponder

A562AA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N446UA · AIRBUS A-320 · operated by UNITED AIRLINES INC

Hex
A562AA
Octal
51261252
Decimal
10,838,698
Country
US
Tail
N446UA
Type
A320
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
545
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A562AA.

Country allocation

The ICAO 24-bit address A562AA 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
UAL739 - 8 2026-06-26
UAL1655 United Airlines 8 2026-06-11
UAL1182 - 7 2026-06-25
UAL2805 - 6 2026-06-24
UAL247 United Airlines 6 2026-06-26
UAL2357 United Airlines 6 2026-05-03
UAL1564 - 6 2026-07-20
UAL790 - 5 2026-07-18
UAL764 United Airlines 5 2026-06-11
UAL576 - 5 2026-06-24
UAL2792 United Airlines 5 2026-07-24
UAL2225 - 5 2026-06-24
UAL2196 United Airlines 5 2026-06-15
UAL1728 United Airlines 5 2026-05-14
UAL1180 United Airlines 5 2026-06-22
UAL1126 United Airlines 5 2026-05-03
UAL1088 United Airlines 5 2026-06-14
UAL609 - 4 2026-06-29
UAL397 United Airlines 4 2026-07-01
UAL2483 United Airlines 4 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2479 ORD → LAS Jul 26, 21:45 UTCJul 26, 22:30 UTC45m
2026-07-26 UAL1819 IAH → EWR Jul 26, 19:40 UTCJul 26, 20:15 UTC35m
2026-07-26 UAL1747 TPA → EWR Jul 26, 17:45 UTCJul 26, 18:20 UTC35m
2026-07-26 UAL1747 TPA → EWR Jul 26, 17:44 UTCJul 26, 18:17 UTC33m
2026-07-26 UAL1823 SFO → DEN Jul 26, 15:35 UTCJul 26, 16:05 UTC30m
2026-07-26 UAL1823 SFO → DEN Jul 26, 15:39 UTCJul 26, 16:17 UTC38m
2026-07-26 UAL1345 MIA → EWR Jul 26, 10:35 UTCJul 26, 13:05 UTC2h 30m
2026-07-26 UAL313 BOI → SFO Jul 26, 00:00 UTCJul 26, 02:50 UTC2h 50m
2026-07-25 UAL2263 EWR → FLL Jul 25, 20:25 UTCJul 25, 21:45 UTC1h 20m
2026-07-25 UAL1452 ORD → PVR Jul 25, 14:10 UTCJul 25, 16:30 UTC2h 20m
2026-07-25 UAL1452 ORD → PVR Jul 25, 14:15 UTCJul 25, 17:47 UTC3h 32m
2026-07-25 UAL224 ORD → EWR Jul 25, 10:15 UTCJul 25, 11:50 UTC1h 35m
2026-07-24 UAL1583 IAH → LGA Jul 24, 23:30 UTCJul 25, 00:55 UTC1h 25m
2026-07-24 UAL2792 IAD → SFO Jul 24, 20:30 UTCJul 24, 21:35 UTC1h 5m
2026-07-24 UAL561 - Jul 24, 18:00 UTCJul 24, 19:00 UTC1h 0m
2026-07-24 UAL455 ORD → MSN Jul 24, 15:10 UTCJul 24, 16:15 UTC1h 5m
2026-07-24 UAL1285 BDL → IAH Jul 24, 12:50 UTCJul 24, 13:50 UTC1h 0m
2026-07-23 UAL623 LGA → ORD Jul 23, 18:05 UTCJul 24, 01:50 UTC7h 45m
2026-07-23 UAL704 IAH → EWR Jul 23, 14:45 UTCJul 23, 16:20 UTC1h 35m
2026-07-23 UAL1269 LGA → IAH Jul 23, 11:40 UTCJul 23, 13:10 UTC1h 30m
2026-07-22 UAL1625 EWR → DEN Jul 22, 23:05 UTCJul 22, 23:10 UTC5m
2026-07-22 UAL1625 EWR → DEN Jul 22, 21:00 UTCJul 22, 23:10 UTC2h 10m
2026-07-22 UAL1625 EWR → DEN Jul 22, 20:51 UTCJul 22, 22:49 UTC1h 58m
2026-07-22 UAL1061 SEA → SFO Jul 22, 17:15 UTCJul 22, 19:25 UTC2h 10m
2026-07-22 UAL1061 SEA → SFO Jul 22, 17:16 UTCJul 22, 19:20 UTC2h 4m
2026-07-22 UAL466 AUS → EWR Jul 22, 13:05 UTCJul 22, 14:05 UTC1h 0m
2026-07-22 UAL1492 PHL → IAH Jul 22, 03:38 UTCJul 22, 04:04 UTC26m
2026-07-22 UAL1492 PHL → IAH Jul 22, 03:25 UTCJul 22, 04:10 UTC45m
2026-07-21 UAL1476 DEN → EUG Jul 21, 23:50 UTCJul 22, 01:10 UTC1h 20m
2026-07-21 UAL8172 ORD → OMA Jul 21, 21:23 UTCJul 21, 22:14 UTC51m
2026-07-21 UAL8172 ORD → OMA Jul 21, 21:10 UTCJul 21, 22:10 UTC1h 0m
2026-07-21 UAL2605 - Jul 21, 18:40 UTCJul 21, 19:20 UTC40m
2026-07-21 UAL2807 ORD → ORF Jul 21, 16:15 UTCJul 21, 16:50 UTC35m
2026-07-21 UAL1338 LGA → ORD Jul 21, 13:05 UTCJul 21, 13:50 UTC45m
2026-07-21 UAL1338 LGA → ORD Jul 21, 13:07 UTCJul 21, 13:42 UTC35m
2026-07-21 UAL2426 IAH → BOS Jul 21, 01:50 UTCJul 21, 02:35 UTC45m
2026-07-20 UAL2729 PHL → ORD Jul 20, 19:25 UTCJul 20, 22:15 UTC2h 50m
2026-07-20 UAL2728 VCV → SFO Jul 20, 15:40 UTCJul 20, 18:25 UTC2h 45m
2026-07-20 UAL1857 FSD → ORD Jul 20, 12:56 UTCJul 20, 14:06 UTC1h 10m
2026-07-20 UAL1857 FSD → ORD Jul 20, 12:55 UTCJul 20, 14:20 UTC1h 25m
2026-07-20 UAL1842 ORD → FSD Jul 20, 03:00 UTCJul 20, 04:10 UTC1h 10m
2026-07-20 UAL1564 - Jul 20, 01:20 UTCJul 20, 01:30 UTC10m
2026-07-19 UAL1564 DFW → ORD Jul 19, 23:30 UTCJul 20, 01:30 UTC2h 0m
2026-07-19 UAL1564 IAD → DFW Jul 19, 23:35 UTCJul 20, 01:05 UTC1h 30m
2026-07-19 UAL578 DEN → DFW Jul 19, 20:15 UTCJul 19, 21:50 UTC1h 35m
2026-07-19 UAL489 - Jul 19, 15:45 UTCJul 19, 17:45 UTC2h 0m
2026-07-19 UAL1704 EWR → MSP Jul 19, 02:35 UTCJul 19, 04:25 UTC1h 50m
2026-07-18 UAL325 SEA → DEN Jul 18, 22:57 UTCJul 19, 00:53 UTC1h 56m
2026-07-18 UAL325 SEA → DEN Jul 18, 22:50 UTCJul 19, 01:00 UTC2h 10m
2026-07-18 UAL325 - Jul 18, 19:05 UTCJul 18, 21:10 UTC2h 5m

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 N446UA page for operator, model, and routing details .

Mode-S A562AA frequently asked

What is Mode-S code A562AA?
A562AA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N446UA.
Where is Mode-S A562AA registered?
Mode-S code A562AA 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 A562AA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A562AA, octal 51261252, decimal 10,838,698.
What flights does A562AA operate?
Mode-S A562AA has broadcast 20 distinct callsigns, including UAL739, UAL1655, UAL1182, UAL2805, UAL247.