Apparatus

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sensors Mode-S transponder

A05628

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N12005 · BOEING 787-10 Dreamliner · operated by UNITED AIRLINES INC

Hex
A05628
Octal
50053050
Decimal
10,507,816
Country
US
Tail
N12005
Type
B78X
No current signal · last broadcast Jul 26, 20:00 UTC
Flights observed
271
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:00 UTC

Last known position

Most recent position reported by Mode-S A05628.

Country allocation

The ICAO 24-bit address A05628 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
UAL219 - 23 2026-07-05
UAL218 - 17 2026-07-06
UAL935 United Airlines 13 2026-04-28
UAL125 United Airlines 13 2026-07-21
UAL881 United Airlines 12 2026-07-25
UAL65 - 11 2026-07-18
UAL38 - 11 2026-07-07
UAL124 United Airlines 11 2026-07-20
UAL39 - 10 2026-07-08
UAL986 - 9 2026-06-16
UAL64 United Airlines 9 2026-07-18
UAL987 - 8 2026-06-16
UAL945 United Airlines 8 2026-06-07
UAL923 United Airlines 8 2026-04-27
UAL844 United Airlines 8 2026-07-25
UAL994 - 7 2026-07-21
UAL944 United Airlines 7 2026-06-07
UAL845 United Airlines 6 2026-07-24
UAL423 United Airlines 6 2026-07-23
UAL973 - 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL882 HND → ORD Jul 26, 08:55 UTCJul 26, 20:00 UTC11h 5m
2026-07-25 UAL881 ORD → HND Jul 25, 17:35 UTCJul 26, 06:20 UTC12h 45m
2026-07-25 UAL844 GRU → ORD Jul 25, 01:40 UTCJul 25, 11:40 UTC10h 0m
2026-07-24 UAL845 ORD → GRU Jul 24, 03:15 UTCJul 24, 12:40 UTC9h 25m
2026-07-24 UAL845 ORD → GRU Jul 24, 03:03 UTCJul 24, 12:40 UTC9h 37m
2026-07-23 UAL423 YYZ → DEN Jul 23, 09:55 UTCJul 23, 20:40 UTC10h 45m
2026-07-22 UAL422 DEN → BOS Jul 22, 21:45 UTCJul 23, 07:05 UTC9h 20m
2026-07-22 UAL973 BRU → ORD Jul 22, 08:31 UTCJul 22, 16:36 UTC8h 5m
2026-07-22 UAL973 BRU → ORD Jul 22, 08:31 UTCJul 22, 16:30 UTC7h 59m
2026-07-21 UAL994 - Jul 21, 23:35 UTCJul 22, 05:25 UTC5h 50m
2026-07-21 UAL994 EWR → BRU Jul 21, 23:04 UTCJul 22, 05:59 UTC6h 55m
2026-07-21 UAL125 ATH → EWR Jul 21, 07:45 UTCJul 21, 17:35 UTC9h 50m
2026-07-20 UAL124 EWR → ATH Jul 20, 20:15 UTCJul 21, 04:50 UTC8h 35m
2026-07-19 UAL1981 DEN → LGA Jul 19, 18:30 UTCJul 19, 23:05 UTC4h 35m
2026-07-19 UAL2238 IAH → SFO Jul 19, 02:30 UTCJul 19, 07:20 UTC4h 50m
2026-07-19 UAL2238 IAH → SFO Jul 19, 01:19 UTCJul 19, 07:16 UTC5h 57m
2026-07-18 UAL65 LIS → EWR Jul 18, 09:51 UTCJul 18, 17:10 UTC7h 19m
2026-07-18 UAL65 LIS → EWR Jul 18, 09:45 UTCJul 18, 17:15 UTC7h 30m
2026-07-18 UAL64 EWR → LIS Jul 18, 01:11 UTCJul 18, 07:32 UTC6h 21m
2026-07-18 UAL64 EWR → LIS Jul 18, 01:34 UTCJul 18, 02:19 UTC45m
2026-07-17 UAL125 - Jul 17, 07:44 UTCJul 17, 17:40 UTC9h 55m
2026-07-16 UAL124 EWR → ATH Jul 16, 20:18 UTCJul 17, 04:48 UTC8h 30m
2026-07-16 UAL124 EWR → ATH Jul 16, 20:19 UTCJul 17, 04:49 UTC8h 30m
2026-07-16 UAL2397 - Jul 16, 04:10 UTCJul 16, 08:45 UTC4h 35m
2026-07-15 UAL2238 EWR → LAX Jul 15, 20:28 UTCJul 16, 00:49 UTC4h 21m
2026-07-15 UAL2238 - Jul 15, 20:25 UTCJul 16, 00:55 UTC4h 30m
2026-07-15 UAL2303 - Jul 15, 06:35 UTCJul 15, 11:15 UTC4h 40m
2026-07-14 UAL212 - Jul 14, 16:15 UTCJul 14, 20:40 UTC4h 25m
2026-07-13 UAL1981 - Jul 13, 21:00 UTCJul 14, 01:40 UTC4h 40m
2026-07-13 UAL2445 - Jul 13, 12:50 UTCJul 13, 17:15 UTC4h 25m
2026-07-13 UAL2397 - Jul 13, 04:45 UTCJul 13, 09:20 UTC4h 35m
2026-07-12 UAL212 EWR → LAX Jul 12, 16:22 UTCJul 12, 20:50 UTC4h 28m
2026-07-12 UAL212 - Jul 12, 16:20 UTCJul 12, 20:50 UTC4h 30m
2026-07-12 UAL2397 - Jul 12, 05:01 UTCJul 12, 09:35 UTC4h 35m
2026-07-12 UAL2397 LAX → EWR Jul 12, 04:48 UTCJul 12, 09:34 UTC4h 46m
2026-07-11 UAL2238 - Jul 11, 20:55 UTCJul 12, 01:40 UTC4h 45m
2026-07-11 UAL65 LIS → EWR Jul 11, 09:51 UTCJul 11, 16:43 UTC6h 52m
2026-07-11 UAL65 LIS → EWR Jul 11, 09:51 UTCJul 11, 16:46 UTC6h 55m
2026-07-11 UAL65 - Jul 11, 09:40 UTCJul 11, 10:20 UTC40m
2026-07-11 UAL64 - Jul 11, 01:20 UTCJul 11, 07:10 UTC5h 50m
2026-07-10 UAL995 - Jul 10, 10:20 UTCJul 10, 12:00 UTC1h 40m
2026-07-10 UAL995 BRU → EWR Jul 10, 10:09 UTCJul 10, 17:47 UTC7h 38m
2026-07-10 UAL972 - Jul 10, 01:00 UTCJul 10, 08:00 UTC7h 0m
2026-07-10 UAL972 ORD → BRU Jul 10, 01:02 UTCJul 10, 08:00 UTC6h 58m
2026-07-09 UAL882 HND → ORD Jul 9, 09:20 UTCJul 9, 20:30 UTC11h 10m
2026-07-08 UAL39 - Jul 8, 19:05 UTCJul 9, 05:55 UTC10h 50m
2026-07-08 UAL39 LAX → HND Jul 8, 19:02 UTCJul 9, 05:52 UTC10h 50m
2026-07-07 UAL38 HND → LAX Jul 7, 09:35 UTCJul 7, 18:50 UTC9h 15m
2026-07-07 UAL38 - Jul 7, 09:30 UTCJul 7, 18:55 UTC9h 25m
2026-07-06 UAL881 - Jul 6, 18:00 UTCJul 7, 05:50 UTC11h 50m

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 N12005 page for operator, model, and routing details .

Mode-S A05628 frequently asked

What is Mode-S code A05628?
A05628 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N12005.
Where is Mode-S A05628 registered?
Mode-S code A05628 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 A05628 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A05628, octal 50053050, decimal 10,507,816.
What flights does A05628 operate?
Mode-S A05628 has broadcast 20 distinct callsigns, including UAL219, UAL218, UAL935, UAL125, UAL881.