Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AAF9EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N806UA · AIRBUS A-319 · operated by UNITED AIRLINES INC

Hex
AAF9EA
Octal
52574752
Decimal
11,205,098
Country
US
Tail
N806UA
Type
A319
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
522
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S AAF9EA.

Country allocation

The ICAO 24-bit address AAF9EA 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
UAL2272 United Airlines 6 2026-06-11
UAL2160 - 6 2026-07-13
UAL1639 - 6 2026-07-20
UAL822 United Airlines 5 2026-07-19
UAL705 United Airlines 5 2026-07-25
UAL2753 United Airlines 5 2026-07-25
UAL2467 United Airlines 5 2026-07-26
UAL1846 - 5 2026-07-15
UAL1479 - 5 2026-07-14
UAL1240 United Airlines 5 2026-07-19
UAL1028 United Airlines 5 2026-06-21
UAL412 United Airlines 4 2026-07-19
UAL2852 - 4 2026-07-14
UAL250 United Airlines 4 2026-05-18
UAL1809 - 4 2026-07-16
UAL1380 - 4 2026-07-12
UAL1327 - 4 2026-07-20
UAL1067 - 4 2026-07-10
UAL790 United Airlines 3 2026-04-15
UAL702 - 3 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2467 IAD → ORD Jul 26, 19:30 UTCJul 26, 21:15 UTC1h 45m
2026-07-26 UAL1332 DCA → ORD Jul 26, 16:15 UTCJul 26, 17:35 UTC1h 20m
2026-07-26 UAL786 ATL → EWR Jul 26, 12:35 UTCJul 26, 14:05 UTC1h 30m
2026-07-26 UAL2762 SFO → FTW Jul 26, 02:45 UTCJul 26, 03:55 UTC1h 10m
2026-07-25 UAL623 LGA → ORD Jul 25, 18:05 UTCJul 26, 00:55 UTC6h 50m
2026-07-25 UAL705 PVR → SFO Jul 25, 15:10 UTCJul 25, 16:25 UTC1h 15m
2026-07-25 UAL705 PVR → SFO Jul 25, 15:13 UTCJul 25, 16:15 UTC1h 2m
2026-07-25 UAL2753 LAX → SFO Jul 25, 12:35 UTCJul 25, 13:40 UTC1h 5m
2026-07-25 UAL2753 LAX → SFO Jul 25, 12:48 UTCJul 25, 13:38 UTC50m
2026-07-25 UAL1990 LAX → EWR Jul 25, 00:00 UTCJul 25, 02:10 UTC2h 10m
2026-07-24 UAL622 LAX → ORD Jul 24, 20:50 UTCJul 24, 22:55 UTC2h 5m
2026-07-24 UAL705 PVR → SFO Jul 24, 15:25 UTCJul 24, 16:40 UTC1h 15m
2026-07-24 UAL705 PVR → SFO Jul 24, 15:39 UTCJul 24, 16:27 UTC48m
2026-07-24 UAL2753 LAX → SFO Jul 24, 13:25 UTCJul 24, 14:30 UTC1h 5m
2026-07-23 UAL1193 IAH → SFO Jul 23, 23:30 UTCJul 24, 01:05 UTC1h 35m
2026-07-23 UAL1941 IAD → EWR Jul 23, 20:45 UTCJul 23, 22:05 UTC1h 20m
2026-07-22 UAL2729 PHL → ORD Jul 22, 18:40 UTCJul 22, 21:30 UTC2h 50m
2026-07-22 UAL2728 VCV → SFO Jul 22, 14:37 UTCJul 22, 16:54 UTC2h 17m
2026-07-22 UAL2728 VCV → SFO Jul 22, 14:10 UTCJul 22, 17:00 UTC2h 50m
2026-07-22 UAL2145 MFR → SFO Jul 22, 11:20 UTCJul 22, 12:35 UTC1h 15m
2026-07-21 UAL2496 PDX → SFO Jul 21, 23:40 UTCJul 22, 00:45 UTC1h 5m
2026-07-21 UAL2496 PDX → SFO Jul 21, 23:38 UTCJul 22, 00:41 UTC1h 3m
2026-07-21 UAL2467 IAD → ORD Jul 21, 19:30 UTCJul 21, 21:55 UTC2h 25m
2026-07-21 UAL1332 DCA → ORD Jul 21, 16:30 UTCJul 21, 17:55 UTC1h 25m
2026-07-21 UAL786 - Jul 21, 12:30 UTCJul 21, 13:55 UTC1h 25m
2026-07-21 UAL2762 SFO → FTW Jul 21, 03:10 UTCJul 21, 04:50 UTC1h 40m
2026-07-20 UAL1639 STL → ORD Jul 20, 23:11 UTCJul 21, 00:24 UTC1h 13m
2026-07-20 UAL1639 STL → ORD Jul 20, 23:10 UTCJul 21, 00:40 UTC1h 30m
2026-07-20 UAL1639 DEN → STL Jul 20, 19:35 UTCJul 20, 21:15 UTC1h 40m
2026-07-20 UAL1327 - Jul 20, 15:35 UTCJul 20, 16:30 UTC55m
2026-07-20 UAL1327 ATL → DEN Jul 20, 15:28 UTCJul 20, 18:05 UTC2h 37m
2026-07-20 UAL2739 IAD → ATL Jul 20, 12:35 UTCJul 20, 13:45 UTC1h 10m
2026-07-19 UAL1240 SAT → EWR Jul 19, 22:35 UTCJul 20, 01:30 UTC2h 55m
2026-07-19 UAL2842 SFO → DFW Jul 19, 17:55 UTCJul 19, 21:00 UTC3h 5m
2026-07-19 UAL822 DEN → GRR Jul 19, 12:05 UTCJul 19, 16:00 UTC3h 55m
2026-07-19 UAL822 DEN → GRR Jul 19, 11:49 UTCJul 19, 15:56 UTC4h 7m
2026-07-19 UAL412 SFO → MEX Jul 19, 05:50 UTCJul 19, 07:50 UTC2h 0m
2026-07-19 UAL412 SFO → MEX Jul 19, 06:03 UTCJul 19, 09:35 UTC3h 32m
2026-07-18 UAL1863 - Jul 18, 21:55 UTCJul 19, 02:15 UTC4h 20m
2026-07-18 UAL1642 - Jul 18, 16:05 UTCJul 18, 20:05 UTC4h 0m
2026-07-18 UAL538 EWR → BNA Jul 18, 12:45 UTCJul 18, 14:40 UTC1h 55m
2026-07-18 UAL737 SFO → ABQ Jul 18, 02:00 UTCJul 18, 03:55 UTC1h 56m
2026-07-17 UAL1367 MSP → SFO Jul 17, 20:40 UTCJul 18, 00:04 UTC3h 25m
2026-07-17 UAL283 - Jul 17, 15:49 UTCJul 17, 19:05 UTC3h 15m
2026-07-17 UAL538 EWR → BNA Jul 17, 12:19 UTCJul 17, 14:20 UTC2h 0m
2026-07-17 UAL737 HAF → ABQ Jul 17, 01:59 UTCJul 17, 03:59 UTC2h 0m
2026-07-16 UAL1367 MSP → SFO Jul 16, 20:35 UTCJul 17, 00:20 UTC3h 45m
2026-07-16 UAL283 - Jul 16, 15:49 UTCJul 16, 18:59 UTC3h 10m
2026-07-16 UAL702 - Jul 16, 13:10 UTCJul 16, 14:35 UTC1h 25m
2026-07-16 UAL1809 SFO → RDM Jul 16, 06:50 UTCJul 16, 07:55 UTC1h 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 N806UA page for operator, model, and routing details .

Mode-S AAF9EA frequently asked

What is Mode-S code AAF9EA?
AAF9EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N806UA.
Where is Mode-S AAF9EA registered?
Mode-S code AAF9EA 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 AAF9EA 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 AAF9EA, octal 52574752, decimal 11,205,098.
What flights does AAF9EA operate?
Mode-S AAF9EA has broadcast 20 distinct callsigns, including UAL2272, UAL2160, UAL1639, UAL822, UAL705.