Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8AD4E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N65832 · BOEING 737-900 · operated by UNITED AIRLINES INC

Hex
A8AD4E
Octal
52126516
Decimal
11,054,414
Country
US
Tail
N65832
Type
B739
No current signal · last broadcast Jul 26, 19:00 UTC
Flights observed
453
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:00 UTC

Last known position

Most recent position reported by Mode-S A8AD4E.

Country allocation

The ICAO 24-bit address A8AD4E 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
UAL1615 - 6 2026-07-10
UAL1875 - 5 2026-06-25
UAL1198 United Airlines 5 2026-06-16
UAL2277 United Airlines 4 2026-06-02
UAL2258 - 4 2026-07-07
UAL1868 United Airlines 4 2026-04-29
UAL1834 United Airlines 4 2026-06-18
UAL1792 United Airlines 4 2026-06-02
UAL1623 - 4 2026-07-17
UAL1275 - 4 2026-06-16
UAL1126 - 4 2026-07-14
UAL1010 - 4 2026-07-11
UAL8210 United Airlines 3 2026-06-03
UAL619 United Airlines 3 2026-06-30
UAL414 - 3 2026-07-18
UAL375 - 3 2026-07-18
UAL2741 - 3 2026-06-23
UAL2673 United Airlines 3 2026-07-25
UAL2610 United Airlines 3 2026-04-24
UAL254 United Airlines 3 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2053 SFO → PDX Jul 26, 17:15 UTCJul 26, 19:00 UTC1h 45m
2026-07-26 UAL2204 SFO → SNA Jul 26, 13:15 UTCJul 26, 15:25 UTC2h 10m
2026-07-25 UAL1544 SFO → DEN Jul 25, 23:50 UTCJul 26, 02:00 UTC2h 10m
2026-07-25 UAL1544 SFO → DEN Jul 25, 23:45 UTCJul 26, 02:05 UTC2h 20m
2026-07-25 UAL555 EUG → SFO Jul 25, 19:45 UTCJul 25, 22:10 UTC2h 25m
2026-07-25 UAL555 EUG → SFO Jul 25, 19:33 UTCJul 25, 22:10 UTC2h 37m
2026-07-25 UAL445 CHS → EWR Jul 25, 14:35 UTCJul 25, 17:15 UTC2h 40m
2026-07-25 UAL2673 ORD → LGA Jul 25, 10:35 UTCJul 25, 12:25 UTC1h 50m
2026-07-25 UAL2335 LAX → EWR Jul 25, 01:45 UTCJul 25, 03:35 UTC1h 50m
2026-07-24 UAL2629 LGA → IAH Jul 24, 20:20 UTCJul 24, 22:35 UTC2h 15m
2026-07-24 UAL2629 LGA → IAH Jul 24, 20:22 UTCJul 24, 22:25 UTC2h 3m
2026-07-24 UAL2206 IAD → MCO Jul 24, 16:55 UTCJul 24, 18:35 UTC1h 40m
2026-07-24 UAL1691 EWR → IAD Jul 24, 14:25 UTCJul 24, 15:15 UTC50m
2026-07-24 UAL2828 AMS → SFO Jul 24, 10:20 UTCJul 24, 11:55 UTC1h 35m
2026-07-24 UAL2291 IAH → ATL Jul 24, 02:30 UTCJul 24, 04:10 UTC1h 40m
2026-07-23 UAL1205 IAD → SMF Jul 23, 22:50 UTCJul 23, 23:50 UTC1h 0m
2026-07-23 UAL2091 ORD → RDU Jul 23, 20:05 UTCJul 23, 21:35 UTC1h 30m
2026-07-23 UAL1410 IAH → PHL Jul 23, 17:05 UTCJul 23, 18:00 UTC55m
2026-07-23 UAL1803 CHS → EWR Jul 23, 14:10 UTCJul 23, 14:55 UTC45m
2026-07-23 UAL2070 SFO → PDX Jul 23, 10:30 UTCJul 23, 12:10 UTC1h 40m
2026-07-23 UAL2070 SFO → PDX Jul 23, 10:22 UTCJul 23, 12:04 UTC1h 42m
2026-07-23 UAL2202 ORD → EWR Jul 23, 01:02 UTCJul 23, 01:53 UTC51m
2026-07-23 UAL2202 ORD → EWR Jul 23, 00:40 UTCJul 23, 00:45 UTC5m
2026-07-22 UAL1393 EWR → ORD Jul 22, 21:20 UTCJul 22, 22:55 UTC1h 35m
2026-07-22 UAL1869 SFO → IAD Jul 22, 18:15 UTCJul 22, 19:30 UTC1h 15m
2026-07-22 UAL1695 EWR → MCO Jul 22, 13:15 UTCJul 22, 15:10 UTC1h 55m
2026-07-21 UAL414K DEN → DFW Jul 21, 22:05 UTCJul 21, 23:30 UTC1h 25m
2026-07-21 UAL1195 DTW → ORD Jul 21, 18:50 UTCJul 21, 20:00 UTC1h 10m
2026-07-21 UAL1195 DTW → ORD Jul 21, 18:59 UTCJul 21, 19:55 UTC56m
2026-07-21 UAL361 DEN → OMA Jul 21, 16:15 UTCJul 21, 17:20 UTC1h 5m
2026-07-21 UAL2648 - Jul 21, 12:15 UTCJul 21, 14:40 UTC2h 25m
2026-07-21 UAL2648 GRR → DEN Jul 21, 12:16 UTCJul 21, 14:36 UTC2h 20m
2026-07-21 UAL2121 IAH → ORD Jul 21, 00:35 UTCJul 21, 02:40 UTC2h 5m
2026-07-21 UAL2121 IAH → ORD Jul 21, 00:29 UTCJul 21, 02:33 UTC2h 4m
2026-07-20 UAL1199 EWR → CLT Jul 20, 21:05 UTCJul 20, 22:45 UTC1h 40m
2026-07-20 UAL1547 IAD → SAT Jul 20, 17:35 UTCJul 20, 18:15 UTC40m
2026-07-20 UAL1500 - Jul 20, 14:00 UTCJul 20, 15:35 UTC1h 35m
2026-07-20 UAL2324 GEG → SFO Jul 20, 00:15 UTCJul 20, 01:40 UTC1h 25m
2026-07-19 UAL2470 DEN → MCI Jul 19, 18:15 UTCJul 19, 20:25 UTC2h 10m
2026-07-19 UAL362 DEN → YVR Jul 19, 14:10 UTCJul 19, 16:40 UTC2h 30m
2026-07-18 UAL414 BOS → DEN Jul 18, 21:55 UTCJul 19, 01:55 UTC4h 0m
2026-07-18 UAL375 EWR → BOS Jul 18, 18:12 UTCJul 18, 19:28 UTC1h 16m
2026-07-18 UAL375 EWR → BOS Jul 18, 18:25 UTCJul 18, 19:30 UTC1h 5m
2026-07-18 UAL2673 - Jul 18, 11:55 UTCJul 18, 14:00 UTC2h 5m
2026-07-18 UAL2443 MSN → ORD Jul 18, 02:12 UTCJul 18, 03:59 UTC1h 47m
2026-07-18 UAL2443 MSN → ORD Jul 18, 02:00 UTCJul 18, 04:00 UTC2h 1m
2026-07-17 UAL1623 - Jul 17, 22:10 UTCJul 18, 00:00 UTC1h 50m
2026-07-17 UAL1623 RAP → ORD Jul 17, 22:04 UTCJul 17, 23:43 UTC1h 39m
2026-07-17 UAL1623 DEN → RAP Jul 17, 17:37 UTCJul 17, 18:26 UTC49m
2026-07-17 UAL1623 - Jul 17, 17:30 UTCJul 17, 18:00 UTC30m

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 N65832 page for operator, model, and routing details .

Mode-S A8AD4E frequently asked

What is Mode-S code A8AD4E?
A8AD4E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N65832.
Where is Mode-S A8AD4E registered?
Mode-S code A8AD4E 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 A8AD4E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8AD4E, octal 52126516, decimal 11,054,414.
What flights does A8AD4E operate?
Mode-S A8AD4E has broadcast 20 distinct callsigns, including UAL1615, UAL1875, UAL1198, UAL2277, UAL2258.