Apparatus

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sensors Mode-S transponder

AA6B7E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N77006 · BOEING 777-200 · operated by UNITED AIRLINES INC

Hex
AA6B7E
Octal
52465576
Decimal
11,168,638
Country
US
Tail
N77006
Type
B772
No current signal · last broadcast Jul 26, 16:15 UTC
Flights observed
221
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 16:15 UTC

Last known position

Most recent position reported by Mode-S AA6B7E.

Country allocation

The ICAO 24-bit address AA6B7E 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
UAL889 - 11 2026-07-22
UAL888 - 11 2026-07-21
UAL130 - 11 2026-07-09
UAL803 - 10 2026-07-08
UAL932 - 9 2026-07-07
UAL131 - 8 2026-07-11
UAL804 - 7 2026-07-06
UAL939 United Airlines 6 2026-04-16
UAL933 - 6 2026-07-07
UAL926 United Airlines 6 2026-07-19
UAL905 United Airlines 6 2026-07-26
UAL875 - 6 2026-07-16
UAL70 United Airlines 6 2026-06-18
UAL149 - 6 2026-07-10
UAL97 United Airlines 5 2026-07-21
UAL96 United Airlines 5 2026-07-20
UAL927 United Airlines 5 2026-07-19
UAL917 - 5 2026-07-15
UAL876 United Airlines 5 2026-07-17
UAL148 - 5 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL905 LHR → EWR Jul 26, 08:50 UTCJul 26, 16:10 UTC7h 20m
2026-07-26 UAL905 LHR → EWR Jul 26, 08:55 UTCJul 26, 16:11 UTC7h 16m
2026-07-25 UAL918 IAD → LHR Jul 25, 23:00 UTCJul 26, 06:00 UTC7h 0m
2026-07-25 UAL914 CDG → IAD Jul 25, 10:45 UTCJul 25, 18:15 UTC7h 30m
2026-07-25 UAL914 CDG → IAD Jul 25, 10:59 UTCJul 25, 18:13 UTC7h 14m
2026-07-24 UAL990 SFO → CDG Jul 24, 22:08 UTCJul 25, 08:03 UTC9h 55m
2026-07-24 UAL990 SFO → CDG Jul 24, 22:10 UTCJul 25, 00:45 UTC2h 35m
2026-07-24 UAL1593 LGA → DEN Jul 24, 13:55 UTCJul 24, 19:25 UTC5h 30m
2026-07-24 UAL1141 HNL → SFO Jul 24, 06:45 UTCJul 24, 11:15 UTC4h 30m
2026-07-22 UAL889 - Jul 22, 03:25 UTCJul 22, 21:20 UTC17h 55m
2026-07-21 UAL888 SFO → PEK Jul 21, 18:15 UTCJul 22, 06:52 UTC12h 37m
2026-07-21 UAL888 - Jul 21, 18:25 UTCJul 22, 12:45 UTC18h 20m
2026-07-21 UAL97 BNE → SFO Jul 21, 00:55 UTCJul 21, 13:35 UTC12h 40m
2026-07-20 UAL96 SFO → BNE Jul 20, 07:28 UTCJul 20, 20:56 UTC13h 28m
2026-07-20 UAL96 SFO → BNE Jul 20, 07:35 UTCJul 20, 21:00 UTC13h 25m
2026-07-19 UAL927 FRA → SFO Jul 19, 15:55 UTCJul 20, 03:00 UTC11h 5m
2026-07-19 UAL926 SFO → FRA Jul 19, 02:50 UTCJul 19, 12:45 UTC9h 55m
2026-07-18 UAL45 ZRH → SFO Jul 18, 12:35 UTCJul 18, 23:55 UTC11h 20m
2026-07-17 UAL44 SFO → ZRH Jul 17, 21:39 UTCJul 18, 08:00 UTC10h 21m
2026-07-17 UAL876 HND → SFO Jul 17, 07:14 UTCJul 17, 16:44 UTC9h 30m
2026-07-16 UAL875 - Jul 16, 18:50 UTCJul 16, 19:20 UTC30m
2026-07-16 UAL875 SFO → HND Jul 16, 18:25 UTCJul 17, 04:38 UTC10h 13m
2026-07-16 UAL916 - Jul 16, 02:15 UTCJul 16, 13:34 UTC11h 20m
2026-07-15 UAL917 SFO → AKL Jul 15, 06:50 UTCJul 15, 19:15 UTC12h 25m
2026-07-14 UAL927 - Jul 14, 16:00 UTCJul 14, 19:00 UTC3h 0m
2026-07-14 UAL927 FRA → SFO Jul 14, 15:51 UTCJul 15, 03:07 UTC11h 16m
2026-07-14 UAL926 SFO → FRA Jul 14, 02:40 UTCJul 14, 12:35 UTC9h 55m
2026-07-13 UAL45 ZRH → SFO Jul 13, 12:02 UTCJul 13, 23:42 UTC11h 40m
2026-07-13 UAL45 - Jul 13, 12:00 UTCJul 13, 23:45 UTC11h 45m
2026-07-12 UAL44 SFO → ZRH Jul 12, 21:45 UTCJul 13, 08:01 UTC10h 15m
2026-07-12 UAL876 - Jul 12, 07:25 UTCJul 12, 16:40 UTC9h 15m
2026-07-11 UAL131 EWR → HND Jul 11, 14:53 UTCJul 12, 03:55 UTC13h 2m
2026-07-11 UAL131 EWR → HND Jul 11, 14:45 UTCJul 12, 04:01 UTC13h 15m
2026-07-11 UAL148 - Jul 11, 00:15 UTCJul 11, 09:15 UTC9h 0m
2026-07-10 UAL149 EWR → GRU Jul 10, 01:21 UTCJul 10, 10:00 UTC8h 39m
2026-07-10 UAL149 - Jul 10, 01:30 UTCJul 10, 10:05 UTC8h 35m
2026-07-09 UAL130 HND → EWR Jul 9, 09:45 UTCJul 9, 22:10 UTC12h 25m
2026-07-08 UAL803 IAD → HND Jul 8, 17:10 UTCJul 9, 06:48 UTC13h 38m
2026-07-08 UAL803 IAD → HND Jul 8, 17:10 UTCJul 9, 06:50 UTC13h 40m
2026-07-07 UAL933 - Jul 7, 15:40 UTCJul 7, 23:45 UTC8h 5m
2026-07-07 UAL932 IAD → FRA Jul 7, 05:33 UTCJul 7, 12:50 UTC7h 17m
2026-07-07 UAL932 - Jul 7, 05:40 UTCJul 7, 12:45 UTC7h 5m
2026-07-06 UAL804 HND → IAD Jul 6, 11:40 UTCJul 6, 23:35 UTC11h 55m
2026-07-05 UAL875 SFO → HND Jul 5, 18:40 UTCJul 6, 04:50 UTC10h 10m
2026-07-04 UAL889 PEK → SFO Jul 4, 14:40 UTCJul 5, 01:05 UTC10h 25m
2026-07-04 UAL889 PEK → SFO Jul 4, 13:51 UTCJul 5, 01:05 UTC11h 14m
2026-07-03 UAL888 SFO → PEK Jul 3, 18:30 UTCJul 4, 07:34 UTC13h 4m
2026-07-03 UAL888 SFO → PEK Jul 3, 18:35 UTCJul 3, 19:05 UTC30m
2026-07-02 UAL927 FRA → SFO Jul 2, 18:25 UTCJul 3, 05:00 UTC10h 35m
2026-07-02 UAL926 SFO → FRA Jul 2, 06:30 UTCJul 2, 16:15 UTC9h 45m

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 N77006 page for operator, model, and routing details .

Mode-S AA6B7E frequently asked

What is Mode-S code AA6B7E?
AA6B7E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N77006.
Where is Mode-S AA6B7E registered?
Mode-S code AA6B7E 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 AA6B7E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA6B7E, octal 52465576, decimal 11,168,638.
What flights does AA6B7E operate?
Mode-S AA6B7E has broadcast 20 distinct callsigns, including UAL889, UAL888, UAL130, UAL803, UAL932.