Apparatus

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sensors Mode-S transponder

A75F15

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N574UP · BOEING 747-400 · operated by UNITED PARCEL SERVICE CO

Hex
A75F15
Octal
51657425
Decimal
10,968,853
Country
US
Tail
N574UP
Type
B744
No current signal · last broadcast 15h ago
Flights observed
213
Distinct callsigns
20
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A75F15.

Country allocation

The ICAO 24-bit address A75F15 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
UPS109 United Parcel Service 15 2026-07-02
UPS67 - 13 2026-07-09
UPS99 United Parcel Service 11 2026-06-12
UPS80 - 10 2026-06-24
UPS63 United Parcel Service 9 2026-05-23
UPS68 - 8 2026-07-08
UPS15 - 8 2026-07-05
UPS81 - 7 2026-06-23
UPS61 - 7 2026-06-23
UPS58 - 7 2026-06-11
UPS56 United Parcel Service 6 2026-06-11
UPS34 United Parcel Service 6 2026-06-03
UPS76 United Parcel Service 5 2026-07-04
UPS70 - 5 2026-07-07
UPS32 United Parcel Service 5 2026-06-03
UPS2907 United Parcel Service 5 2026-06-13
UPS62 United Parcel Service 4 2026-05-27
UPS59 United Parcel Service 4 2026-06-10
UPS55 United Parcel Service 4 2026-04-29
UPS210 United Parcel Service 4 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 UPS6065 - Jul 13, 07:20 UTCJul 13, 13:00 UTC5h 40m
2026-07-13 UPS51 - Jul 13, 00:10 UTCJul 13, 04:40 UTC4h 30m
2026-07-12 UPS900 - Jul 12, 18:10 UTCJul 12, 21:30 UTC3h 20m
2026-07-12 UPS218 PHL → SDF Jul 12, 13:10 UTCJul 12, 14:45 UTC1h 35m
2026-07-11 UPS5933 - Jul 11, 15:25 UTCJul 11, 19:50 UTC4h 25m
2026-07-11 UPS916 - Jul 11, 09:30 UTCJul 11, 13:15 UTC3h 45m
2026-07-10 UPS2085 EWR → SDF Jul 10, 14:15 UTCJul 10, 15:55 UTC1h 40m
2026-07-10 UPS2085 EWR → SDF Jul 10, 14:15 UTCJul 10, 15:50 UTC1h 35m
2026-07-10 UPS1084 - Jul 10, 10:05 UTCJul 10, 11:30 UTC1h 25m
2026-07-10 UPS1084 SDF → EWR Jul 10, 10:03 UTCJul 10, 11:28 UTC1h 25m
2026-07-09 UPS67 - Jul 9, 17:50 UTCJul 9, 23:20 UTC5h 30m
2026-07-09 UPS67 ICN → ANC Jul 9, 08:00 UTCJul 9, 15:55 UTC7h 55m
2026-07-09 UPS67 HKG → ICN Jul 9, 02:50 UTCJul 9, 05:50 UTC3h 0m
2026-07-08 UPS67 - Jul 8, 23:35 UTCJul 8, 23:50 UTC15m
2026-07-08 UPS68 - Jul 8, 07:40 UTCJul 8, 08:00 UTC20m
2026-07-08 UPS68 HNL → SGN Jul 8, 07:42 UTCJul 8, 19:26 UTC11h 44m
2026-07-07 UPS70 - Jul 7, 20:10 UTCJul 8, 04:35 UTC8h 25m
2026-07-07 UPS216 - Jul 7, 06:45 UTCJul 7, 07:15 UTC30m
2026-07-07 UPS216 CGN → SDF Jul 7, 06:36 UTCJul 7, 15:02 UTC8h 26m
2026-07-05 UPS15 DEL → CGN Jul 5, 08:45 UTCJul 5, 17:00 UTC8h 15m
2026-07-04 UPS15 - Jul 4, 23:45 UTCJul 5, 02:20 UTC2h 35m
2026-07-04 UPS15 - Jul 4, 21:45 UTCJul 4, 21:55 UTC10m
2026-07-04 UPS76 SDF → DWC Jul 4, 09:20 UTCJul 4, 09:40 UTC20m
2026-07-03 UPS76 SDF → DWC Jul 3, 21:25 UTCJul 3, 22:30 UTC1h 5m
2026-07-03 UPS76 SDF → DWC Jul 3, 21:13 UTCJul 4, 09:03 UTC11h 50m
2026-07-03 UPS76 SDF → DWC Jul 3, 10:00 UTCJul 3, 11:15 UTC1h 15m
2026-07-03 UPS76 SDF → DWC Jul 3, 09:55 UTCJul 3, 15:53 UTC5h 58m
2026-07-02 UPS109 NRT → SDF Jul 2, 22:38 UTCJul 3, 04:34 UTC5h 56m
2026-07-02 UPS109 NRT → SDF Jul 2, 22:35 UTCJul 3, 04:35 UTC6h 0m
2026-07-02 UPS109 NRT → SDF Jul 2, 13:00 UTCJul 2, 13:15 UTC15m
2026-07-02 UPS109 NRT → SDF Jul 2, 12:59 UTCJul 2, 19:10 UTC6h 11m
2026-07-02 UPS108 - Jul 2, 00:50 UTCJul 2, 11:00 UTC10h 10m
2026-07-01 UPS108 SDF → NRT Jul 1, 09:30 UTCJul 1, 21:42 UTC12h 12m
2026-07-01 UPS108 - Jul 1, 09:30 UTCJul 1, 22:00 UTC12h 30m
2026-06-30 UPS109 NRT → SDF Jun 30, 22:20 UTCJul 1, 04:15 UTC5h 55m
2026-06-30 UPS109 NRT → SDF Jun 30, 22:19 UTCJul 1, 04:12 UTC5h 53m
2026-06-30 UPS109 NRT → SDF Jun 30, 13:10 UTCJun 30, 13:40 UTC30m
2026-06-30 UPS109 NRT → SDF Jun 30, 13:01 UTCJun 30, 19:20 UTC6h 19m
2026-06-30 UPS128 - Jun 30, 00:55 UTCJun 30, 11:35 UTC10h 41m
2026-06-24 UPS80 - Jun 24, 17:25 UTCJun 25, 13:05 UTC19h 40m
2026-06-24 UPS80 - Jun 24, 09:34 UTCJun 24, 13:54 UTC4h 20m
2026-06-23 UPS81 ANC → ONT Jun 23, 23:55 UTCJun 24, 04:30 UTC4h 35m
2026-06-23 UPS61 - Jun 23, 14:10 UTCJun 23, 21:10 UTC7h 0m
2026-06-23 UPS61 - Jun 23, 12:25 UTCJun 23, 12:40 UTC15m
2026-06-23 UPS61 HKG → TPE Jun 23, 08:20 UTCJun 23, 09:54 UTC1h 35m
2026-06-20 UPS22 ORD → HKG Jun 20, 19:44 UTCJun 20, 20:14 UTC30m
2026-06-20 UPS22 ORD → HKG Jun 20, 08:44 UTCJun 20, 12:54 UTC4h 10m
2026-06-20 UPS22 ORD → HKG Jun 20, 03:09 UTCJun 20, 03:49 UTC40m
2026-06-17 UPS1D - Jun 17, 13:45 UTCJun 17, 18:05 UTC4h 20m
2026-06-17 UPS1D - Jun 17, 06:05 UTCJun 17, 06:20 UTC15m

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 N574UP page for operator, model, and routing details .

Mode-S A75F15 frequently asked

What is Mode-S code A75F15?
A75F15 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N574UP.
Where is Mode-S A75F15 registered?
Mode-S code A75F15 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 A75F15 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A75F15, octal 51657425, decimal 10,968,853.
What flights does A75F15 operate?
Mode-S A75F15 has broadcast 20 distinct callsigns, including UPS109, UPS67, UPS99, UPS80, UPS63.