Apparatus

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sensors Mode-S transponder

A5CC35

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N47291 · BOEING 737 MAX 8 · operated by UNITED AIRLINES INC

Hex
A5CC35
Octal
51346065
Decimal
10,865,717
Country
US
Tail
N47291
Type
B38M
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
490
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A5CC35.

Country allocation

The ICAO 24-bit address A5CC35 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
UAL2194 United Airlines 7 2026-05-11
UAL1676 United Airlines 7 2026-05-10
UAL643 - 6 2026-07-11
UAL2036 - 6 2026-07-16
UAL1339 - 6 2026-07-15
UAL488 - 5 2026-06-29
UAL287 - 5 2026-07-14
UAL206 United Airlines 5 2026-05-13
UAL205 United Airlines 5 2026-05-12
UAL1977 United Airlines 5 2026-04-30
UAL1519 United Airlines 5 2026-07-23
UAL604 United Airlines 4 2026-04-15
UAL577 United Airlines 4 2026-04-29
UAL438 United Airlines 4 2026-04-17
UAL226 United Airlines 4 2026-05-15
UAL2250 United Airlines 4 2026-06-10
UAL2224 - 4 2026-07-17
UAL2203 United Airlines 4 2026-05-08
UAL2038 United Airlines 4 2026-05-08
UAL653 - 3 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2212 PHL → IAH Jul 26, 20:15 UTCJul 26, 21:15 UTC1h 0m
2026-07-26 UAL1553 MSY → EWR Jul 26, 12:10 UTCJul 26, 17:15 UTC5h 5m
2026-07-26 UAL1553 MSY → EWR Jul 26, 12:13 UTCJul 26, 17:22 UTC5h 9m
2026-07-25 UAL536 EWR → SFO Jul 25, 22:26 UTCJul 26, 03:38 UTC5h 12m
2026-07-25 UAL536 EWR → SFO Jul 25, 22:45 UTCJul 26, 03:45 UTC5h 0m
2026-07-25 UAL2200 EWR → SAN Jul 25, 16:35 UTCJul 25, 20:05 UTC3h 30m
2026-07-25 UAL2092 SFO → PHX Jul 25, 13:30 UTCJul 25, 15:10 UTC1h 40m
2026-07-24 UAL474 MEX → ORD Jul 24, 20:25 UTCJul 25, 00:05 UTC3h 40m
2026-07-24 UAL359 ORD → MEX Jul 24, 14:56 UTCJul 24, 18:20 UTC3h 24m
2026-07-24 UAL359 ORD → MEX Jul 24, 14:50 UTCJul 24, 17:05 UTC2h 15m
2026-07-24 UAL723 CLE → IAH Jul 24, 10:10 UTCJul 24, 12:20 UTC2h 10m
2026-07-24 UAL2064 JAC → SFO Jul 24, 02:30 UTCJul 24, 03:35 UTC1h 5m
2026-07-23 UAL1519 IAD → MBJ Jul 23, 16:55 UTCJul 24, 00:10 UTC7h 15m
2026-07-23 UAL572 ORD → MSN Jul 23, 08:35 UTCJul 23, 14:40 UTC6h 5m
2026-07-23 UAL2369 MSY → IAH Jul 23, 02:40 UTCJul 23, 07:08 UTC4h 28m
2026-07-23 UAL2369 MSY → IAH Jul 23, 02:55 UTCJul 23, 07:15 UTC4h 20m
2026-07-22 UAL1230 YVR → SFO Jul 22, 22:30 UTCJul 23, 00:30 UTC2h 0m
2026-07-22 UAL1134 EWR → CUN Jul 22, 15:25 UTCJul 22, 20:50 UTC5h 25m
2026-07-22 UAL1134 EWR → CUN Jul 22, 15:15 UTCJul 22, 20:46 UTC5h 31m
2026-07-22 UAL2396 BOS → EWR Jul 22, 12:55 UTCJul 22, 13:45 UTC50m
2026-07-22 UAL2766 HKG → ORD Jul 22, 03:13 UTCJul 22, 04:37 UTC1h 24m
2026-07-22 UAL2766 HKG → ORD Jul 22, 03:20 UTCJul 22, 04:35 UTC1h 15m
2026-07-21 UAL1182 ORD → MCI Jul 21, 21:10 UTCJul 21, 23:25 UTC2h 15m
2026-07-21 UAL1598 IAH → EWR Jul 21, 16:20 UTCJul 21, 19:30 UTC3h 10m
2026-07-21 UAL1584 - Jul 21, 13:20 UTCJul 21, 13:45 UTC25m
2026-07-21 UAL1584 EGE → DEN Jul 21, 13:22 UTCJul 21, 13:43 UTC21m
2026-07-21 UAL2859 ORD → CVG Jul 21, 02:05 UTCJul 21, 02:15 UTC10m
2026-07-20 UAL1698 SFO → SLC Jul 20, 20:10 UTCJul 20, 23:20 UTC3h 10m
2026-07-20 UAL1514 EWR → PUJ Jul 20, 12:35 UTCJul 20, 16:18 UTC3h 43m
2026-07-20 UAL1514 - Jul 20, 12:50 UTCJul 20, 14:10 UTC1h 20m
2026-07-19 UAL583 MCO → EWR Jul 19, 23:30 UTCJul 20, 01:40 UTC2h 10m
2026-07-19 UAL583 MCO → EWR Jul 19, 23:15 UTCJul 20, 01:36 UTC2h 21m
2026-07-19 UAL2215 FLL → EWR Jul 19, 19:30 UTCJul 19, 21:50 UTC2h 20m
2026-07-19 UAL1530 - Jul 19, 13:15 UTCJul 19, 17:00 UTC3h 45m
2026-07-19 UAL1530 STT → EWR Jul 19, 13:17 UTCJul 19, 16:56 UTC3h 39m
2026-07-18 UAL1328 ATL → EWR Jul 18, 17:35 UTCJul 18, 20:55 UTC3h 20m
2026-07-18 UAL1549 ORD → PSP Jul 18, 13:50 UTCJul 18, 16:25 UTC2h 35m
2026-07-18 UAL1549 ORD → PSP Jul 18, 13:49 UTCJul 18, 16:21 UTC2h 32m
2026-07-18 UAL1097 - Jul 18, 06:35 UTCJul 18, 09:50 UTC3h 15m
2026-07-18 UAL1055 - Jul 18, 01:45 UTCJul 18, 04:50 UTC3h 6m
2026-07-18 UAL1055 IAH → SJO Jul 18, 01:33 UTCJul 18, 04:49 UTC3h 16m
2026-07-17 UAL1245 PLS → IAH Jul 17, 19:53 UTCJul 17, 22:47 UTC2h 54m
2026-07-17 UAL1244 - Jul 17, 14:44 UTCJul 17, 22:55 UTC8h 10m
2026-07-17 UAL1450 EWR → PBI Jul 17, 10:10 UTCJul 17, 12:40 UTC2h 30m
2026-07-17 UAL2224 - Jul 17, 01:49 UTCJul 17, 04:25 UTC2h 35m
2026-07-16 UAL2341 - Jul 16, 23:10 UTCJul 17, 00:04 UTC55m
2026-07-16 UAL1493 - Jul 16, 21:00 UTCJul 16, 21:40 UTC40m
2026-07-16 UAL508 - Jul 16, 04:20 UTCJul 16, 18:44 UTC14h 25m
2026-07-16 UAL2036 - Jul 16, 01:30 UTCJul 16, 02:35 UTC1h 5m
2026-07-15 UAL2036 - Jul 15, 22:55 UTCJul 15, 23:10 UTC15m

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 N47291 page for operator, model, and routing details .

Mode-S A5CC35 frequently asked

What is Mode-S code A5CC35?
A5CC35 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N47291.
Where is Mode-S A5CC35 registered?
Mode-S code A5CC35 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 A5CC35 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5CC35, octal 51346065, decimal 10,865,717.
What flights does A5CC35 operate?
Mode-S A5CC35 has broadcast 20 distinct callsigns, including UAL2194, UAL1676, UAL643, UAL2036, UAL1339.