Apparatus

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sensors Mode-S transponder

A05626

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N12003 · BOEING 787-10 Dreamliner · operated by UNITED AIRLINES INC

Hex
A05626
Octal
50053046
Decimal
10,507,814
Country
US
Tail
N12003
Type
B78X
Broadcasting now · callsign UAL844 · 38,000 ft
Flights observed
223
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Current position

A05626 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A05626 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
UAL125 - 14 2026-07-08
UAL65 - 13 2026-07-09
UAL994 - 12 2026-07-09
UAL973 - 11 2026-07-10
UAL945 - 11 2026-07-11
UAL944 - 11 2026-07-10
UAL64 - 11 2026-07-09
UAL907 United Airlines 9 2026-06-17
UAL906 - 9 2026-06-17
UAL422 - 9 2026-06-27
UAL124 - 9 2026-07-07
UAL995 - 8 2026-07-07
UAL972 - 8 2026-07-06
UAL423 - 7 2026-06-28
UAL971 - 6 2026-07-12
UAL970 - 6 2026-07-11
UAL881 - 6 2026-07-01
UAL39 - 6 2026-07-05
UAL882 - 5 2026-07-06
UAL845 - 5 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UAL844 - Jul 14, 01:40 UTCJul 14, 03:30 UTC1h 50m
2026-07-13 UAL845 - Jul 13, 03:10 UTCJul 13, 12:35 UTC9h 25m
2026-07-12 UAL971 - Jul 12, 08:50 UTCJul 12, 18:05 UTC9h 15m
2026-07-11 UAL970 ORD → FCO Jul 11, 21:22 UTCJul 12, 05:33 UTC8h 11m
2026-07-11 UAL970 - Jul 11, 21:05 UTCJul 12, 05:45 UTC8h 40m
2026-07-11 UAL945 FRA → ORD Jul 11, 07:10 UTCJul 11, 15:25 UTC8h 15m
2026-07-10 UAL944 - Jul 10, 20:40 UTCJul 11, 04:15 UTC7h 35m
2026-07-10 UAL944 ORD → FRA Jul 10, 20:47 UTCJul 11, 04:08 UTC7h 21m
2026-07-10 UAL973 BRU → ORD Jul 10, 08:50 UTCJul 10, 16:55 UTC8h 5m
2026-07-09 UAL994 EWR → BRU Jul 9, 23:04 UTCJul 10, 05:56 UTC6h 52m
2026-07-09 UAL994 - Jul 9, 23:35 UTCJul 10, 06:00 UTC6h 25m
2026-07-09 UAL65 LIS → EWR Jul 9, 10:03 UTCJul 9, 16:52 UTC6h 49m
2026-07-09 UAL65 LIS → EWR Jul 9, 09:45 UTCJul 9, 16:50 UTC7h 5m
2026-07-09 UAL64 EWR → LIS Jul 9, 00:56 UTCJul 9, 07:09 UTC6h 13m
2026-07-09 UAL64 - Jul 9, 01:00 UTCJul 9, 02:45 UTC1h 45m
2026-07-08 UAL125 ATH → EWR Jul 8, 07:40 UTCJul 8, 17:15 UTC9h 35m
2026-07-07 UAL124 EWR → ATH Jul 7, 20:10 UTCJul 8, 04:45 UTC8h 35m
2026-07-07 UAL995 BRU → EWR Jul 7, 09:35 UTCJul 7, 17:00 UTC7h 25m
2026-07-06 UAL972 ORD → BRU Jul 6, 23:57 UTCJul 7, 07:01 UTC7h 4m
2026-07-06 UAL972 - Jul 6, 23:40 UTCJul 7, 07:05 UTC7h 25m
2026-07-06 UAL882 HND → ORD Jul 6, 08:55 UTCJul 6, 19:45 UTC10h 50m
2026-07-05 UAL39 - Jul 5, 19:05 UTCJul 6, 05:50 UTC10h 45m
2026-07-04 UAL772 - Jul 4, 05:20 UTCJul 4, 16:05 UTC10h 45m
2026-07-03 UAL771 - Jul 3, 08:55 UTCJul 3, 21:20 UTC12h 25m
2026-07-03 UAL771 LAX → PEK Jul 3, 08:49 UTCJul 3, 22:19 UTC13h 30m
2026-07-02 UAL38 - Jul 2, 10:30 UTCJul 2, 19:30 UTC9h 0m
2026-07-01 UAL881 - Jul 1, 19:15 UTCJul 2, 07:20 UTC12h 5m
2026-07-01 UAL945 FRA → ORD Jul 1, 07:23 UTCJul 1, 15:39 UTC8h 16m
2026-07-01 UAL945 - Jul 1, 07:20 UTCJul 1, 09:00 UTC1h 40m
2026-06-30 UAL944 - Jun 30, 20:35 UTCJul 1, 04:10 UTC7h 35m
2026-06-30 UAL944 ORD → FRA Jun 30, 20:47 UTCJul 1, 04:01 UTC7h 14m
2026-06-30 UAL844 - Jun 30, 01:35 UTCJun 30, 11:15 UTC9h 40m
2026-06-29 UAL845 ORD → GRU Jun 29, 03:20 UTCJun 29, 12:34 UTC9h 15m
2026-06-28 UAL423 ATH → ORD Jun 28, 10:04 UTCJun 28, 20:14 UTC10h 10m
2026-06-27 UAL422 - Jun 27, 21:34 UTCJun 28, 07:09 UTC9h 35m
2026-06-27 UAL973 BRU → ORD Jun 27, 08:41 UTCJun 27, 16:18 UTC7h 37m
2026-06-27 UAL973 - Jun 27, 08:39 UTCJun 27, 16:35 UTC7h 55m
2026-06-26 UAL972 ORD → BRU Jun 26, 23:42 UTCJun 27, 06:32 UTC6h 50m
2026-06-26 UAL972 - Jun 26, 23:19 UTCJun 27, 05:29 UTC6h 10m
2026-06-26 UAL973 - Jun 26, 08:40 UTCJun 26, 16:39 UTC8h 0m
2026-06-25 UAL994 PBI → ORD Jun 25, 23:05 UTCJun 26, 05:24 UTC6h 20m
2026-06-25 UAL994 PBI → ORD Jun 25, 23:04 UTCJun 26, 05:21 UTC6h 17m
2026-06-25 UAL3918 EWR → SFO Jun 25, 19:15 UTCJun 25, 20:45 UTC1h 30m
2026-06-22 UAL3011 HND → ORD Jun 22, 12:19 UTCJun 22, 23:50 UTC11h 30m
2026-06-20 UAL39 - Jun 20, 20:34 UTCJun 21, 07:14 UTC10h 40m
2026-06-20 UAL39 LAX → HND Jun 20, 20:22 UTCJun 21, 07:09 UTC10h 47m
2026-06-19 UAL2238 - Jun 19, 20:34 UTCJun 20, 01:29 UTC4h 55m
2026-06-19 UAL65 LIS → EWR Jun 19, 09:51 UTCJun 19, 17:08 UTC7h 17m
2026-06-19 UAL65 LIS → EWR Jun 19, 09:59 UTCJun 19, 17:09 UTC7h 10m
2026-06-19 UAL64 EWR → LIS Jun 19, 01:34 UTCJun 19, 07:25 UTC5h 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 N12003 page for operator, model, and routing details .

Mode-S A05626 frequently asked

What is Mode-S code A05626?
A05626 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N12003.
Where is Mode-S A05626 registered?
Mode-S code A05626 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 A05626 broadcasting right now?
Yes. Mode-S A05626 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A05626, octal 50053046, decimal 10,507,814.
What flights does A05626 operate?
Mode-S A05626 has broadcast 20 distinct callsigns, including UAL125, UAL65, UAL994, UAL973, UAL945.