Apparatus

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sensors Mode-S transponder

AA8114

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N776UA · BOEING 777-200 · operated by UNITED AIRLINES INC

Hex
AA8114
Octal
52500424
Decimal
11,174,164
Country
US
Tail
N776UA
Type
B772
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
257
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S AA8114.

Country allocation

The ICAO 24-bit address AA8114 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
UAL1805 - 27 2026-07-13
UAL300 United Airlines 23 2026-07-20
UAL383 - 19 2026-07-13
UAL384 - 18 2026-07-12
UAL1158 - 15 2026-07-14
UAL1806 - 14 2026-07-07
UAL253 United Airlines 12 2026-07-21
UAL1818 United Airlines 12 2026-07-24
UAL252 United Airlines 11 2026-07-21
UAL1736 - 10 2026-07-05
UAL604 United Airlines 9 2026-07-25
UAL2358 United Airlines 9 2026-07-25
UAL1169 - 9 2026-07-14
UAL1735 - 8 2026-07-06
UAL1157 United Airlines 6 2026-06-03
UAL2391 United Airlines 4 2026-05-18
UAL1758 United Airlines 4 2026-04-30
UAL1604 United Airlines 4 2026-05-18
UAL1141 United Airlines 4 2026-04-21
UAL543 United Airlines 3 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL543 IAH → MCO Jul 26, 16:25 UTCJul 26, 20:10 UTC3h 45m
2026-07-26 UAL543 IAH → MCO Jul 26, 16:12 UTCJul 26, 20:10 UTC3h 58m
2026-07-25 UAL1777 EWR → IAH Jul 25, 22:00 UTCJul 26, 01:25 UTC3h 25m
2026-07-25 UAL2358 SAN → EWR Jul 25, 15:05 UTCJul 25, 18:25 UTC3h 20m
2026-07-25 UAL604 DEN → SYR Jul 25, 08:21 UTCJul 25, 11:37 UTC3h 16m
2026-07-25 UAL604 DEN → SYR Jul 25, 08:25 UTCJul 25, 11:40 UTC3h 15m
2026-07-24 UAL1818 FLL → EWR Jul 24, 00:00 UTCJul 24, 04:10 UTC4h 10m
2026-07-21 UAL253 IAH → HNL Jul 21, 15:50 UTCJul 21, 23:40 UTC7h 50m
2026-07-21 UAL253 IAH → HNL Jul 21, 15:52 UTCJul 21, 23:34 UTC7h 42m
2026-07-21 UAL252 HNL → IAH Jul 21, 06:15 UTCJul 21, 06:35 UTC20m
2026-07-21 UAL252 HNL → IAH Jul 21, 06:27 UTCJul 21, 13:24 UTC6h 57m
2026-07-20 UAL300 SFO → HNL Jul 20, 22:00 UTCJul 21, 03:00 UTC4h 59m
2026-07-20 UAL1147 IAD → SFO Jul 20, 12:55 UTCJul 20, 17:35 UTC4h 40m
2026-07-19 UAL1791 LAS → ORD Jul 19, 20:42 UTCJul 20, 01:10 UTC4h 28m
2026-07-19 UAL1791 LAS → ORD Jul 19, 20:40 UTCJul 20, 01:10 UTC4h 30m
2026-07-19 UAL2610 - Jul 19, 14:15 UTCJul 19, 17:50 UTC3h 35m
2026-07-19 UAL2480 BOS → SFO Jul 19, 00:10 UTCJul 19, 03:35 UTC3h 25m
2026-07-18 UAL1147 - Jul 18, 13:30 UTCJul 18, 18:15 UTC4h 45m
2026-07-17 UAL8133 SFO → IAD Jul 17, 22:02 UTCJul 18, 02:41 UTC4h 39m
2026-07-17 UAL8133 SFO → IAD Jul 17, 22:10 UTCJul 18, 02:45 UTC4h 35m
2026-07-17 UAL2358 SAN → EWR Jul 17, 15:05 UTCJul 17, 18:29 UTC3h 25m
2026-07-17 UAL604 DEN → SYR Jul 17, 08:25 UTCJul 17, 11:45 UTC3h 20m
2026-07-16 UAL2610 - Jul 16, 14:45 UTCJul 16, 18:29 UTC3h 45m
2026-07-15 UAL2480 SFO → ORD Jul 15, 22:40 UTCJul 16, 02:10 UTC3h 30m
2026-07-15 UAL2358 - Jul 15, 14:55 UTCJul 15, 18:15 UTC3h 20m
2026-07-15 UAL604 - Jul 15, 08:00 UTCJul 15, 11:15 UTC3h 15m
2026-07-15 UAL1818 - Jul 15, 00:00 UTCJul 15, 00:15 UTC15m
2026-07-14 UAL1818 HNL → SFO Jul 14, 23:45 UTCJul 15, 04:12 UTC4h 27m
2026-07-14 UAL1158 - Jul 14, 21:30 UTCJul 14, 21:50 UTC20m
2026-07-14 UAL1158 - Jul 14, 16:30 UTCJul 14, 17:00 UTC30m
2026-07-14 UAL1169 - Jul 14, 08:05 UTCJul 14, 12:40 UTC4h 35m
2026-07-13 UAL1805 - Jul 13, 22:30 UTCJul 14, 05:00 UTC6h 30m
2026-07-13 UAL383 - Jul 13, 05:45 UTCJul 13, 11:55 UTC6h 10m
2026-07-13 UAL383 HNL → DEN Jul 13, 05:58 UTCJul 13, 11:53 UTC5h 55m
2026-07-12 UAL384 - Jul 12, 18:40 UTCJul 13, 01:10 UTC6h 30m
2026-07-12 UAL383 - Jul 12, 05:55 UTCJul 12, 12:01 UTC6h 5m
2026-07-11 UAL253 - Jul 11, 16:20 UTCJul 12, 00:05 UTC7h 45m
2026-07-11 UAL252 - Jul 11, 06:05 UTCJul 11, 13:10 UTC7h 5m
2026-07-11 UAL300 - Jul 11, 02:10 UTCJul 11, 02:30 UTC20m
2026-07-10 UAL300 SFO → HNL Jul 10, 21:32 UTCJul 11, 02:27 UTC4h 55m
2026-07-10 UAL300 - Jul 10, 21:35 UTCJul 10, 22:05 UTC30m
2026-07-10 UAL1818 - Jul 10, 00:05 UTCJul 10, 00:20 UTC15m
2026-07-09 UAL1818 HNL → SFO Jul 9, 23:50 UTCJul 10, 04:30 UTC4h 40m
2026-07-08 UAL1805 DEN → HNL Jul 8, 22:23 UTCJul 9, 05:14 UTC6h 51m
2026-07-08 UAL1805 - Jul 8, 22:25 UTCJul 9, 05:20 UTC6h 55m
2026-07-07 UAL1806 - Jul 7, 07:55 UTCJul 7, 13:50 UTC5h 55m
2026-07-07 UAL1805 - Jul 7, 05:05 UTCJul 7, 05:20 UTC15m
2026-07-06 UAL1805 - Jul 6, 22:55 UTCJul 7, 01:15 UTC2h 20m
2026-07-06 UAL1735 - Jul 6, 09:45 UTCJul 6, 11:45 UTC2h 0m
2026-07-05 UAL1736 - Jul 5, 18:20 UTCJul 5, 20:35 UTC2h 15m

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 N776UA page for operator, model, and routing details .

Mode-S AA8114 frequently asked

What is Mode-S code AA8114?
AA8114 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N776UA.
Where is Mode-S AA8114 registered?
Mode-S code AA8114 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 AA8114 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA8114, octal 52500424, decimal 11,174,164.
What flights does AA8114 operate?
Mode-S AA8114 has broadcast 20 distinct callsigns, including UAL1805, UAL300, UAL383, UAL384, UAL1158.