Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8DD7B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N670UA · BOEING 767-300 · operated by UNITED AIRLINES INC

Hex
A8DD7B
Octal
52156573
Decimal
11,066,747
Country
US
Tail
N670UA
Type
B763
Broadcasting now · callsign UAL2434 · 30,025 ft
Flights observed
267
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:20 UTC

Current position

A8DD7B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8DD7B 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
UAL967 United Airlines 15 2026-07-26
UAL920 United Airlines 14 2026-07-05
UAL966 United Airlines 13 2026-07-26
UAL928 United Airlines 13 2026-07-03
UAL962 United Airlines 11 2026-07-23
UAL957 - 11 2026-07-19
UAL963 United Airlines 10 2026-07-18
UAL273 United Airlines 10 2026-05-30
UAL956 - 9 2026-07-18
UAL934 United Airlines 9 2026-07-01
UAL31 - 8 2026-06-25
UAL921 - 7 2026-07-14
UAL272 United Airlines 7 2026-05-30
UAL16 United Airlines 7 2026-07-20
UAL135 - 7 2026-06-23
UAL941 - 6 2026-06-17
UAL938 - 6 2026-06-13
UAL908 United Airlines 6 2026-04-15
UAL904 - 6 2026-07-14
UAL15 United Airlines 6 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL967 NAP → EWR Jul 26, 13:00 UTCJul 26, 22:05 UTC9h 5m
2026-07-26 UAL966 EWR → NAP Jul 26, 02:31 UTCJul 26, 10:13 UTC7h 42m
2026-07-26 UAL966 EWR → NAP Jul 26, 02:10 UTCJul 26, 10:10 UTC8h 1m
2026-07-25 UAL3933 PWM → MCO Jul 25, 12:15 UTCJul 25, 20:40 UTC8h 25m
2026-07-25 UAL3933 PWM → MCO Jul 25, 12:11 UTCJul 25, 20:36 UTC8h 25m
2026-07-23 UAL962 EWR → BER Jul 23, 21:25 UTCJul 24, 04:25 UTC7h 0m
2026-07-23 UAL381 BDL → SMF Jul 23, 09:00 UTCJul 23, 18:40 UTC9h 40m
2026-07-22 UAL380 ORD → PDX Jul 22, 20:00 UTCJul 23, 04:20 UTC8h 20m
2026-07-22 UAL306 AUS → SFO Jul 22, 10:20 UTCJul 22, 14:45 UTC4h 25m
2026-07-22 UAL306 AUS → SFO Jul 22, 07:35 UTCJul 22, 17:21 UTC9h 46m
2026-07-21 UAL305 BOS → IAH Jul 21, 21:20 UTCJul 22, 05:10 UTC7h 50m
2026-07-21 UAL17 LHR → EWR Jul 21, 10:05 UTCJul 21, 17:20 UTC7h 15m
2026-07-20 UAL16 EWR → LHR Jul 20, 21:58 UTCJul 21, 04:55 UTC6h 57m
2026-07-20 UAL16 EWR → LHR Jul 20, 22:15 UTCJul 20, 22:45 UTC30m
2026-07-19 UAL957 - Jul 19, 10:35 UTCJul 19, 10:45 UTC10m
2026-07-19 UAL957 - Jul 19, 09:20 UTCJul 19, 10:30 UTC1h 10m
2026-07-19 UAL957 GVA → EWR Jul 19, 09:17 UTCJul 19, 17:18 UTC8h 1m
2026-07-18 UAL956 EWR → GVA Jul 18, 23:50 UTCJul 19, 07:20 UTC7h 30m
2026-07-18 UAL956 EWR → GVA Jul 18, 22:18 UTCJul 19, 07:24 UTC9h 6m
2026-07-18 UAL963 BER → EWR Jul 18, 08:15 UTCJul 18, 17:10 UTC8h 55m
2026-07-18 UAL963 BER → EWR Jul 18, 08:21 UTCJul 18, 17:12 UTC8h 51m
2026-07-17 UAL962 EWR → BER Jul 17, 22:13 UTCJul 18, 05:42 UTC7h 29m
2026-07-17 UAL962 - Jul 17, 22:15 UTCJul 18, 04:45 UTC6h 31m
2026-07-16 UAL967 - Jul 16, 17:54 UTCJul 16, 20:45 UTC2h 50m
2026-07-16 UAL967 NAP → EWR Jul 16, 17:54 UTCJul 17, 02:53 UTC8h 59m
2026-07-16 UAL967 NAP → EWR Jul 16, 17:54 UTCJul 17, 03:03 UTC9h 9m
2026-07-16 UAL966 EWR → NAP Jul 16, 04:01 UTCJul 16, 11:57 UTC7h 56m
2026-07-16 UAL966 - Jul 16, 03:50 UTCJul 16, 04:40 UTC50m
2026-07-14 UAL921 - Jul 14, 17:25 UTCJul 15, 00:45 UTC7h 19m
2026-07-14 UAL904 - Jul 14, 00:05 UTCJul 14, 06:55 UTC6h 50m
2026-07-13 UAL967 - Jul 13, 12:20 UTCJul 13, 21:30 UTC9h 10m
2026-07-13 UAL966 - Jul 13, 01:20 UTCJul 13, 09:35 UTC8h 15m
2026-07-12 UAL967 - Jul 12, 12:25 UTCJul 12, 21:35 UTC9h 10m
2026-07-12 UAL966 - Jul 12, 01:40 UTCJul 12, 09:55 UTC8h 15m
2026-07-11 UAL967 - Jul 11, 12:30 UTCJul 11, 22:05 UTC9h 35m
2026-07-11 UAL967 NAP → EWR Jul 11, 12:24 UTCJul 11, 22:05 UTC9h 41m
2026-07-11 UAL966 - Jul 11, 01:45 UTCJul 11, 02:45 UTC1h 0m
2026-07-11 UAL966 EWR → NAP Jul 11, 01:21 UTCJul 11, 09:57 UTC8h 36m
2026-07-05 UAL147 - Jul 5, 11:10 UTCJul 5, 18:30 UTC7h 20m
2026-07-05 UAL920 ORD → LHR Jul 5, 00:27 UTCJul 5, 07:26 UTC6h 59m
2026-07-05 UAL920 ORD → LHR Jul 5, 00:00 UTCJul 5, 07:35 UTC7h 35m
2026-07-03 UAL928 LHR → ORD Jul 3, 13:35 UTCJul 3, 22:10 UTC8h 35m
2026-07-03 UAL928 LHR → ORD Jul 3, 13:44 UTCJul 3, 21:57 UTC8h 13m
2026-07-03 UAL146 EWR → LHR Jul 3, 03:35 UTCJul 3, 09:55 UTC6h 20m
2026-07-02 UAL921 - Jul 2, 17:30 UTCJul 3, 01:20 UTC7h 50m
2026-07-02 UAL921 LHR → EWR Jul 2, 17:22 UTCJul 3, 01:16 UTC7h 54m
2026-07-01 UAL934 EWR → LHR Jul 1, 12:57 UTCJul 1, 19:16 UTC6h 19m
2026-07-01 UAL934 EWR → LHR Jul 1, 12:50 UTCJul 1, 19:15 UTC6h 25m
2026-06-30 UAL967 - Jun 30, 12:30 UTCJun 30, 12:45 UTC15m
2026-06-30 UAL967 NAP → EWR Jun 30, 12:24 UTCJun 30, 21:50 UTC9h 26m

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 N670UA page for operator, model, and routing details .

Mode-S A8DD7B frequently asked

What is Mode-S code A8DD7B?
A8DD7B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N670UA.
Where is Mode-S A8DD7B registered?
Mode-S code A8DD7B 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 A8DD7B broadcasting right now?
Yes. Mode-S A8DD7B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8DD7B, octal 52156573, decimal 11,066,747.
What flights does A8DD7B operate?
Mode-S A8DD7B has broadcast 20 distinct callsigns, including UAL967, UAL920, UAL966, UAL928, UAL962.