Apparatus

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sensors Mode-S transponder

A8BD6A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N662UA · BOEING 767-300 · operated by UNITED AIRLINES INC

Hex
A8BD6A
Octal
52136552
Decimal
11,058,538
Country
US
Tail
N662UA
Type
B763
Broadcasting now · callsign UAL967 · 36,025 ft
Flights observed
251
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 18:35 UTC

Current position

A8BD6A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8BD6A 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
UAL147 United Airlines 14 2026-07-23
UAL12 United Airlines 14 2026-07-24
UAL958 United Airlines 12 2026-07-19
UAL959 United Airlines 11 2026-07-25
UAL940 - 11 2026-07-15
UAL15 - 11 2026-07-15
UAL134 United Airlines 11 2026-07-24
UAL934 - 10 2026-07-18
UAL941 - 9 2026-07-12
UAL920 United Airlines 9 2026-07-25
UAL146 - 9 2026-06-21
UAL928 United Airlines 8 2026-07-22
UAL3 United Airlines 8 2026-07-03
UAL272 - 8 2026-07-14
UAL17 - 8 2026-07-05
UAL963 - 7 2026-07-07
UAL962 United Airlines 7 2026-07-06
UAL273 - 7 2026-07-14
UAL938 - 6 2026-07-12
UAL55 United Airlines 6 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 UAL959 LHR → ORD Jul 25, 10:30 UTCJul 25, 18:30 UTC8h 0m
2026-07-25 UAL920 ORD → LHR Jul 25, 00:10 UTCJul 25, 08:00 UTC7h 50m
2026-07-24 UAL12 HNL → LAX Jul 24, 08:19 UTCJul 24, 17:22 UTC9h 3m
2026-07-24 UAL12 HNL → LAX Jul 24, 08:25 UTCJul 24, 17:35 UTC9h 10m
2026-07-24 UAL134 EWR → ZRH Jul 24, 03:10 UTCJul 24, 04:30 UTC1h 20m
2026-07-23 UAL134 EWR → ZRH Jul 23, 22:39 UTCJul 24, 05:21 UTC6h 42m
2026-07-23 UAL134 EWR → ZRH Jul 23, 22:25 UTCJul 23, 23:50 UTC1h 25m
2026-07-23 UAL147 LHR → EWR Jul 23, 11:40 UTCJul 23, 18:55 UTC7h 15m
2026-07-23 UAL920 ORD → LHR Jul 23, 02:25 UTCJul 23, 09:40 UTC7h 15m
2026-07-22 UAL928 LHR → ORD Jul 22, 15:20 UTCJul 22, 23:25 UTC8h 5m
2026-07-22 UAL928 LHR → ORD Jul 22, 15:04 UTCJul 22, 23:09 UTC8h 5m
2026-07-22 UAL920 - Jul 22, 01:00 UTCJul 22, 02:15 UTC1h 15m
2026-07-19 UAL958 ORD → LHR Jul 19, 08:40 UTCJul 19, 09:55 UTC1h 15m
2026-07-19 UAL958 ORD → LHR Jul 19, 08:29 UTCJul 19, 16:24 UTC7h 55m
2026-07-18 UAL934 EWR → LHR Jul 18, 13:05 UTCJul 18, 19:50 UTC6h 45m
2026-07-15 UAL15 - Jul 15, 15:45 UTCJul 15, 17:00 UTC1h 15m
2026-07-15 UAL15 LHR → EWR Jul 15, 15:09 UTCJul 15, 23:02 UTC7h 53m
2026-07-15 UAL15 LHR → EWR Jul 15, 15:09 UTCJul 15, 23:04 UTC7h 55m
2026-07-15 UAL940 EWR → LHR Jul 15, 01:15 UTCJul 15, 08:20 UTC7h 5m
2026-07-14 UAL273 NCE → EWR Jul 14, 10:55 UTCJul 14, 19:20 UTC8h 25m
2026-07-14 UAL272 - Jul 14, 00:55 UTCJul 14, 08:30 UTC7h 35m
2026-07-12 UAL941 - Jul 12, 15:50 UTCJul 12, 16:30 UTC40m
2026-07-12 UAL941 LHR → EWR Jul 12, 15:24 UTCJul 12, 22:57 UTC7h 33m
2026-07-12 UAL941 LHR → EWR Jul 12, 15:24 UTCJul 12, 23:01 UTC7h 37m
2026-07-12 UAL938 ORD → LHR Jul 12, 03:33 UTCJul 12, 10:54 UTC7h 21m
2026-07-12 UAL938 - Jul 12, 03:30 UTCJul 12, 10:30 UTC7h 0m
2026-07-11 UAL928 LHR → ORD Jul 11, 13:55 UTCJul 11, 22:05 UTC8h 10m
2026-07-11 UAL940 EWR → LHR Jul 11, 01:21 UTCJul 11, 08:01 UTC6h 40m
2026-07-11 UAL940 - Jul 11, 01:35 UTCJul 11, 02:30 UTC55m
2026-07-10 UAL15 LHR → EWR Jul 10, 15:25 UTCJul 10, 22:50 UTC7h 25m
2026-07-09 UAL929 ORD → LHR Jul 9, 22:10 UTCJul 10, 05:35 UTC7h 25m
2026-07-09 UAL958 LHR → ORD Jul 9, 07:35 UTCJul 9, 15:50 UTC8h 15m
2026-07-09 UAL958 LHR → ORD Jul 9, 07:09 UTCJul 9, 15:38 UTC8h 29m
2026-07-08 UAL934 EWR → LHR Jul 8, 12:57 UTCJul 8, 19:31 UTC6h 34m
2026-07-08 UAL934 EWR → LHR Jul 8, 12:50 UTCJul 8, 18:30 UTC5h 40m
2026-07-07 UAL963 - Jul 7, 08:05 UTCJul 7, 16:30 UTC8h 25m
2026-07-07 UAL963 BER → EWR Jul 7, 08:11 UTCJul 7, 16:35 UTC8h 24m
2026-07-06 UAL962 EWR → BER Jul 6, 21:45 UTCJul 7, 04:45 UTC7h 0m
2026-07-06 UAL147 - Jul 6, 11:25 UTCJul 6, 19:00 UTC7h 35m
2026-07-06 UAL940 EWR → LHR Jul 6, 01:26 UTCJul 6, 08:13 UTC6h 47m
2026-07-06 UAL940 - Jul 6, 02:10 UTCJul 6, 03:35 UTC1h 25m
2026-07-05 UAL17 - Jul 5, 10:00 UTCJul 5, 17:25 UTC7h 25m
2026-07-05 UAL929 - Jul 5, 00:30 UTCJul 5, 05:35 UTC5h 5m
2026-07-04 UAL929 - Jul 4, 22:25 UTCJul 5, 00:25 UTC2h 0m
2026-07-04 UAL12 ZRH → ORD Jul 4, 08:19 UTCJul 4, 18:19 UTC10h 0m
2026-07-04 UAL12 ZRH → ORD Jul 4, 08:25 UTCJul 4, 18:25 UTC10h 0m
2026-07-03 UAL3 LAX → HNL Jul 3, 21:30 UTCJul 4, 05:35 UTC8h 5m
2026-07-03 UAL958 - Jul 3, 07:20 UTCJul 3, 15:35 UTC8h 15m
2026-07-02 UAL934 EWR → LHR Jul 2, 12:40 UTCJul 2, 19:30 UTC6h 50m
2026-07-01 UAL147 - Jul 1, 12:15 UTCJul 1, 20:00 UTC7h 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 N662UA page for operator, model, and routing details .

Mode-S A8BD6A frequently asked

What is Mode-S code A8BD6A?
A8BD6A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N662UA.
Where is Mode-S A8BD6A registered?
Mode-S code A8BD6A 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 A8BD6A broadcasting right now?
Yes. Mode-S A8BD6A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8BD6A, octal 52136552, decimal 11,058,538.
What flights does A8BD6A operate?
Mode-S A8BD6A has broadcast 20 distinct callsigns, including UAL147, UAL12, UAL958, UAL959, UAL940.