Apparatus

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sensors Mode-S transponder

A3C847

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N34282 · BOEING 737-800 · operated by UMB BANK NA TRUSTEE

Hex
A3C847
Octal
50744107
Decimal
10,733,639
Country
US
Tail
N34282
Type
B738
Broadcasting now · callsign UAL1381 · 36,000 ft
Flights observed
409
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A3C847 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3C847 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
UAL602 - 6 2026-07-10
UAL565 United Airlines 5 2026-05-05
UAL362 - 5 2026-07-07
UAL2617 - 5 2026-07-09
UAL1496 United Airlines 5 2026-06-13
UAL2443 United Airlines 4 2026-04-28
UAL2378 United Airlines 4 2026-05-20
UAL2271 - 4 2026-04-13
UAL1710 - 4 2026-07-07
UAL1299 United Airlines 4 2026-05-20
UAL720 United Airlines 3 2026-05-29
UAL699 - 3 2026-06-20
UAL349 United Airlines 3 2026-04-21
UAL2470 - 3 2026-07-07
UAL2272 United Airlines 3 2026-05-10
UAL2150 United Airlines 3 2026-07-05
UAL211 United Airlines 3 2026-05-02
UAL2056 - 3 2026-07-02
UAL2039 - 3 2026-06-30
UAL1929 United Airlines 3 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 UAL1696 - Jul 13, 22:00 UTCJul 14, 00:25 UTC2h 25m
2026-07-13 UAL2188 DEN → FLL Jul 13, 16:10 UTCJul 13, 19:55 UTC3h 45m
2026-07-13 UAL1464 - Jul 13, 10:45 UTCJul 13, 12:30 UTC1h 45m
2026-07-13 UAL395 - Jul 13, 02:55 UTCJul 13, 04:35 UTC1h 40m
2026-07-12 UAL1236 YVR → DEN Jul 12, 22:50 UTCJul 13, 01:10 UTC2h 20m
2026-07-12 UAL1767 - Jul 12, 18:30 UTCJul 12, 19:45 UTC1h 15m
2026-07-12 UAL1767 DEN → YVR Jul 12, 18:31 UTCJul 12, 21:02 UTC2h 31m
2026-07-12 UAL1727 - Jul 12, 13:10 UTCJul 12, 16:01 UTC2h 50m
2026-07-11 UAL248 DEN → BUF Jul 11, 23:40 UTCJul 12, 02:30 UTC2h 50m
2026-07-11 UAL1843 - Jul 11, 20:50 UTCJul 11, 22:25 UTC1h 35m
2026-07-11 UAL1294 - Jul 11, 17:45 UTCJul 11, 19:15 UTC1h 30m
2026-07-11 UAL2789 - Jul 11, 15:00 UTCJul 11, 16:05 UTC1h 5m
2026-07-11 UAL2789 ICT → DEN Jul 11, 14:50 UTCJul 11, 16:02 UTC1h 12m
2026-07-11 UAL2166 - Jul 11, 02:20 UTCJul 11, 03:20 UTC1h 0m
2026-07-10 UAL517 - Jul 10, 19:55 UTCJul 11, 00:40 UTC4h 45m
2026-07-10 UAL517 BTV → DEN Jul 10, 19:59 UTCJul 11, 00:30 UTC4h 31m
2026-07-10 UAL786 - Jul 10, 16:15 UTCJul 10, 17:55 UTC1h 40m
2026-07-10 UAL2653 - Jul 10, 12:25 UTCJul 10, 13:45 UTC1h 20m
2026-07-10 UAL8258 ORD → TUL Jul 10, 05:20 UTCJul 10, 06:45 UTC1h 25m
2026-07-10 UAL602 - Jul 10, 03:45 UTCJul 10, 04:00 UTC15m
2026-07-10 UAL602 - Jul 10, 01:35 UTCJul 10, 03:45 UTC2h 10m
2026-07-09 UAL602 LGA → ORD Jul 9, 23:20 UTCJul 10, 03:28 UTC4h 8m
2026-07-09 UAL2189 ORD → LGA Jul 9, 20:30 UTCJul 9, 22:10 UTC1h 40m
2026-07-09 UAL1310 - Jul 9, 14:30 UTCJul 9, 16:15 UTC1h 45m
2026-07-09 UAL2617 ORD → LGA Jul 9, 11:20 UTCJul 9, 12:55 UTC1h 35m
2026-07-09 UAL2094 PDX → ORD Jul 9, 05:45 UTCJul 9, 09:05 UTC3h 20m
2026-07-09 UAL2262 SFO → PDX Jul 9, 02:10 UTCJul 9, 03:30 UTC1h 20m
2026-07-08 UAL298 AUS → EWR Jul 8, 20:30 UTCJul 9, 00:50 UTC4h 20m
2026-07-08 UAL213 IAD → BNA Jul 8, 17:40 UTCJul 8, 19:10 UTC1h 30m
2026-07-08 UAL2098 BOS → IAD Jul 8, 13:45 UTCJul 8, 15:00 UTC1h 15m
2026-07-07 UAL2798 DEN → BOS Jul 7, 23:30 UTCJul 8, 03:05 UTC3h 35m
2026-07-07 UAL2470 YVR → DEN Jul 7, 18:05 UTCJul 7, 20:30 UTC2h 25m
2026-07-07 UAL362 DEN → YVR Jul 7, 14:05 UTCJul 7, 16:40 UTC2h 35m
2026-07-07 UAL362 DEN → YVR Jul 7, 14:09 UTCJul 7, 16:37 UTC2h 28m
2026-07-07 UAL1910 SLC → DEN Jul 7, 05:25 UTCJul 7, 06:20 UTC55m
2026-07-07 UAL1710 - Jul 7, 01:30 UTCJul 7, 04:15 UTC2h 45m
2026-07-06 UAL2422 - Jul 6, 15:50 UTCJul 6, 23:15 UTC7h 25m
2026-07-06 UAL249 YVR → ORD Jul 6, 08:45 UTCJul 6, 12:10 UTC3h 25m
2026-07-06 UAL1910 DEN → YVR Jul 6, 03:10 UTCJul 6, 05:45 UTC2h 35m
2026-07-05 UAL467 MSP → DEN Jul 5, 23:35 UTCJul 6, 01:15 UTC1h 40m
2026-07-05 UAL2150 HNL → DEN Jul 5, 19:50 UTCJul 5, 22:05 UTC2h 15m
2026-07-05 UAL369 - Jul 5, 16:10 UTCJul 5, 18:30 UTC2h 20m
2026-07-05 UAL369 CVG → IAH Jul 5, 16:10 UTCJul 5, 18:28 UTC2h 18m
2026-07-05 UAL396 - Jul 5, 12:45 UTCJul 5, 14:40 UTC1h 55m
2026-07-04 UAL1911 - Jul 4, 23:55 UTCJul 5, 00:20 UTC25m
2026-07-04 UAL1911 GUA → IAH Jul 4, 22:01 UTCJul 5, 00:21 UTC2h 20m
2026-07-04 UAL1911 - Jul 4, 21:50 UTCJul 4, 22:05 UTC15m
2026-07-04 UAL275 - Jul 4, 19:55 UTCJul 4, 20:10 UTC15m
2026-07-04 UAL275 - Jul 4, 17:50 UTCJul 4, 18:10 UTC20m
2026-07-04 UAL2617 - Jul 4, 13:15 UTCJul 4, 15:50 UTC2h 35m

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 N34282 page for operator, model, and routing details .

Mode-S A3C847 frequently asked

What is Mode-S code A3C847?
A3C847 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N34282.
Where is Mode-S A3C847 registered?
Mode-S code A3C847 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 A3C847 broadcasting right now?
Yes. Mode-S A3C847 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C847, octal 50744107, decimal 10,733,639.
What flights does A3C847 operate?
Mode-S A3C847 has broadcast 20 distinct callsigns, including UAL602, UAL565, UAL362, UAL2617, UAL1496.