Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3A0ED

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N33294 · BOEING 737-800 · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
A3A0ED
Octal
50720355
Decimal
10,723,565
Country
US
Tail
N33294
Type
B738
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
427
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S A3A0ED.

Country allocation

The ICAO 24-bit address A3A0ED 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
UAL1816 United Airlines 5 2026-05-07
UAL1212 United Airlines 5 2026-05-30
UAL1208 - 5 2026-07-14
UAL539 United Airlines 4 2026-07-20
UAL2327 - 4 2026-07-06
UAL2254 United Airlines 4 2026-05-05
UAL2028 United Airlines 4 2026-05-18
UAL202 - 4 2026-07-09
UAL1943 - 4 2026-07-07
UAL1910 - 4 2026-07-16
UAL1714 United Airlines 4 2026-05-23
UAL1156 - 4 2026-07-10
UAL762 United Airlines 3 2026-04-15
UAL565 - 3 2026-06-19
UAL513 United Airlines 3 2026-06-27
UAL2446 United Airlines 3 2026-05-18
UAL2375 - 3 2026-07-04
UAL231 United Airlines 3 2026-04-16
UAL2299 United Airlines 3 2026-06-04
UAL2257 United Airlines 3 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2131 PBI → EWR Jul 26, 20:10 UTCJul 26, 21:10 UTC1h 0m
2026-07-26 UAL2101 PBI → EWR Jul 26, 13:15 UTCJul 26, 18:35 UTC5h 20m
2026-07-26 UAL3920 GVA → IAD Jul 26, 04:55 UTCJul 26, 06:40 UTC1h 46m
2026-07-22 UAL3882 FTW → SFO Jul 22, 02:35 UTCJul 22, 04:35 UTC2h 0m
2026-07-21 UAL2131 PBI → EWR Jul 21, 20:55 UTCJul 22, 01:15 UTC4h 20m
2026-07-21 UAL2101 PBI → EWR Jul 21, 13:35 UTCJul 21, 18:45 UTC5h 10m
2026-07-20 UAL1370 IAH → IAD Jul 20, 23:35 UTCJul 21, 01:40 UTC2h 5m
2026-07-20 UAL2812 - Jul 20, 20:05 UTCJul 20, 22:05 UTC2h 0m
2026-07-20 UAL539 PHL → SFO Jul 20, 17:10 UTCJul 20, 17:55 UTC45m
2026-07-20 UAL539 PHL → SFO Jul 20, 17:13 UTCJul 20, 17:48 UTC35m
2026-07-20 UAL2074 IAD → DEN Jul 20, 14:45 UTCJul 20, 15:30 UTC45m
2026-07-20 UAL2281 CVG → IAH Jul 20, 12:15 UTCJul 20, 13:30 UTC1h 15m
2026-07-20 UAL2236 SFO → BOS Jul 20, 02:35 UTCJul 20, 03:35 UTC1h 0m
2026-07-19 UAL1183 - Jul 19, 20:55 UTCJul 20, 00:30 UTC3h 35m
2026-07-19 UAL2393 - Jul 19, 16:15 UTCJul 19, 19:30 UTC3h 15m
2026-07-19 UAL2302 - Jul 19, 12:20 UTCJul 19, 14:45 UTC2h 25m
2026-07-19 UAL2439 - Jul 19, 01:05 UTCJul 19, 03:50 UTC2h 45m
2026-07-18 UAL2457 - Jul 18, 14:50 UTCJul 18, 20:45 UTC5h 55m
2026-07-18 UAL2442 MSY → IAH Jul 18, 10:50 UTCJul 18, 12:45 UTC1h 55m
2026-07-18 UAL2442 MSY → IAH Jul 18, 10:50 UTCJul 18, 12:47 UTC1h 57m
2026-07-18 UAL2069 IAH → CVG Jul 18, 03:25 UTCJul 18, 05:20 UTC1h 55m
2026-07-18 UAL1360 IAD → RSW Jul 18, 00:19 UTCJul 18, 02:14 UTC1h 55m
2026-07-17 UAL1488 - Jul 17, 16:15 UTCJul 17, 18:15 UTC2h 0m
2026-07-17 UAL544 LAX → SFO Jul 17, 12:30 UTCJul 17, 14:50 UTC2h 20m
2026-07-17 UAL2015 BOS → SFO Jul 17, 01:00 UTCJul 17, 03:45 UTC2h 45m
2026-07-16 UAL1147 SFO → SAN Jul 16, 22:35 UTCJul 16, 23:55 UTC1h 20m
2026-07-16 UAL2309 - Jul 16, 18:55 UTCJul 16, 19:55 UTC1h 0m
2026-07-16 UAL444 - Jul 16, 16:19 UTCJul 16, 17:35 UTC1h 15m
2026-07-16 UAL1954 SMF → SFO Jul 16, 13:15 UTCJul 16, 13:45 UTC30m
2026-07-16 UAL1268 DEN → SMF Jul 16, 02:55 UTCJul 16, 04:55 UTC2h 0m
2026-07-16 UAL1910 SLC → DEN Jul 16, 00:20 UTCJul 16, 01:25 UTC1h 5m
2026-07-15 UAL2017 - Jul 15, 21:30 UTCJul 15, 23:00 UTC1h 30m
2026-07-15 UAL2309 - Jul 15, 18:25 UTCJul 15, 19:35 UTC1h 10m
2026-07-15 UAL444 - Jul 15, 15:40 UTCJul 15, 16:50 UTC1h 10m
2026-07-15 UAL1954 SMF → SFO Jul 15, 13:10 UTCJul 15, 13:40 UTC30m
2026-07-14 UAL1208 DEN → SMF Jul 14, 22:24 UTCJul 15, 00:11 UTC1h 47m
2026-07-14 UAL1208 DEN → SMF Jul 14, 22:15 UTCJul 15, 00:15 UTC1h 59m
2026-07-14 UAL757 SEA → DEN Jul 14, 18:25 UTCJul 14, 20:40 UTC2h 15m
2026-07-14 UAL2271 DEN → SEA Jul 14, 14:30 UTCJul 14, 16:45 UTC2h 15m
2026-07-14 UAL1464 - Jul 14, 10:50 UTCJul 14, 12:35 UTC1h 45m
2026-07-14 UAL395 DEN → SAT Jul 14, 02:50 UTCJul 14, 04:45 UTC1h 55m
2026-07-14 UAL1910 SLC → DEN Jul 14, 00:25 UTCJul 14, 01:25 UTC1h 0m
2026-07-13 UAL2017 SFO → SLC Jul 13, 21:50 UTCJul 13, 23:15 UTC1h 25m
2026-07-13 UAL1712 DFW → SFO Jul 13, 17:15 UTCJul 13, 20:10 UTC2h 55m
2026-07-13 UAL539 ORD → DFW Jul 13, 12:45 UTCJul 13, 14:40 UTC1h 55m
2026-07-13 UAL1621 MCO → ORD Jul 13, 01:20 UTCJul 13, 03:45 UTC2h 25m
2026-07-12 UAL1811 ORD → MCO Jul 12, 18:25 UTCJul 12, 20:40 UTC2h 15m
2026-07-12 UAL1811 ORD → MCO Jul 12, 18:20 UTCJul 12, 20:41 UTC2h 21m
2026-07-12 UAL503 BOS → ORD Jul 12, 14:45 UTCJul 12, 17:01 UTC2h 15m
2026-07-12 UAL1186 ORD → BOS Jul 12, 11:29 UTCJul 12, 13:14 UTC1h 45m

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 N33294 page for operator, model, and routing details .

Mode-S A3A0ED frequently asked

What is Mode-S code A3A0ED?
A3A0ED is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N33294.
Where is Mode-S A3A0ED registered?
Mode-S code A3A0ED 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 A3A0ED broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3A0ED, octal 50720355, decimal 10,723,565.
What flights does A3A0ED operate?
Mode-S A3A0ED has broadcast 20 distinct callsigns, including UAL1816, UAL1212, UAL1208, UAL539, UAL2327.