Apparatus

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sensors Mode-S transponder

A3F579

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N354UP · BOEING 767-300 · operated by C C & E I LLC

Hex
A3F579
Octal
50772571
Decimal
10,745,209
Country
US
Tail
N354UP
Type
B763
Broadcasting now · callsign UPS1151 · 25,025 ft
Flights observed
364
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Current position

A3F579 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3F579 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
UPS208 - 35 2026-06-30
UPS237 - 18 2026-07-15
UPS207 United Parcel Service 18 2026-06-04
UPS104 United Parcel Service 18 2026-07-22
UPS105 United Parcel Service 17 2026-07-23
UPS219 - 12 2026-07-14
UPS232 - 9 2026-07-15
UPS2463 United Parcel Service 7 2026-06-16
UPS915 - 5 2026-07-18
UPS7983 United Parcel Service 5 2026-04-24
UPS5776 - 5 2026-07-02
UPS2924 United Parcel Service 5 2026-06-15
UPS973 - 4 2026-07-04
UPS946 United Parcel Service 4 2026-06-10
UPS328 United Parcel Service 4 2026-07-26
UPS249 United Parcel Service 4 2026-06-05
UPS248 United Parcel Service 4 2026-06-05
UPS238 - 4 2026-07-16
UPS1332 - 4 2026-07-04
UPS1172 - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UPS328 SDF → SJU Jul 26, 21:05 UTCJul 26, 22:15 UTC1h 10m
2026-07-26 UPS1071 EWR → SDF Jul 26, 11:50 UTCJul 26, 13:20 UTC1h 30m
2026-07-26 UPS5192 RFD → PHL Jul 26, 01:00 UTCJul 26, 01:30 UTC30m
2026-07-26 UPS5192 RFD → PHL Jul 26, 01:03 UTCJul 26, 01:27 UTC24m
2026-07-25 UPS5192 RFD → PHL Jul 25, 22:20 UTCJul 25, 23:45 UTC1h 25m
2026-07-25 UPS5303 ATL → SDF Jul 25, 12:20 UTCJul 25, 13:15 UTC55m
2026-07-25 UPS1304 SDF → ATL Jul 25, 09:20 UTCJul 25, 10:10 UTC50m
2026-07-25 UPS313 GDL → SDF Jul 25, 01:48 UTCJul 25, 05:20 UTC3h 32m
2026-07-24 UPS313 GDL → SDF Jul 24, 12:55 UTCJul 25, 05:30 UTC16h 35m
2026-07-24 UPS312 SAT → GDL Jul 24, 09:25 UTCJul 24, 11:35 UTC2h 10m
2026-07-23 UPS105 KIX → ANC Jul 23, 22:25 UTCJul 24, 04:05 UTC5h 40m
2026-07-23 UPS105 KIX → ANC Jul 23, 13:45 UTCJul 23, 20:50 UTC7h 5m
2026-07-23 UPS105 KIX → ANC Jul 23, 05:15 UTCJul 23, 11:15 UTC6h 0m
2026-07-22 UPS104 RFD → KIX Jul 22, 17:10 UTCJul 23, 01:15 UTC8h 5m
2026-07-22 UPS104 RFD → KIX Jul 22, 10:20 UTCJul 22, 15:20 UTC5h 0m
2026-07-21 UPS105 KIX → ANC Jul 21, 22:35 UTCJul 22, 04:10 UTC5h 35m
2026-07-21 UPS105 KIX → ANC Jul 21, 13:55 UTCJul 21, 20:55 UTC7h 0m
2026-07-21 UPS104 RFD → KIX Jul 21, 05:15 UTCJul 21, 11:30 UTC6h 15m
2026-07-20 UPS104 RFD → KIX Jul 20, 14:03 UTCJul 20, 21:36 UTC7h 33m
2026-07-20 UPS104 RFD → KIX Jul 20, 13:55 UTCJul 20, 21:40 UTC7h 45m
2026-07-20 UPS104 RFD → KIX Jul 20, 02:25 UTCJul 20, 05:25 UTC3h 0m
2026-07-19 UPS5982 GEG → BFI Jul 19, 20:25 UTCJul 20, 00:35 UTC4h 10m
2026-07-19 UPS339 - Jul 19, 02:25 UTCJul 19, 06:15 UTC3h 50m
2026-07-18 UPS7938 SDF → SJU Jul 18, 19:30 UTCJul 18, 23:05 UTC3h 35m
2026-07-18 UPS497 YMX → SDF Jul 18, 13:25 UTCJul 18, 15:25 UTC2h 0m
2026-07-18 UPS474 - Jul 18, 09:50 UTCJul 18, 11:30 UTC1h 40m
2026-07-18 UPS915 - Jul 18, 02:14 UTCJul 18, 05:50 UTC3h 36m
2026-07-17 UPS5196 PHL → ONT Jul 17, 14:24 UTCJul 17, 19:15 UTC4h 50m
2026-07-17 UPS1194 - Jul 17, 08:35 UTCJul 17, 10:00 UTC1h 25m
2026-07-16 UPS238 - Jul 16, 20:05 UTCJul 17, 04:14 UTC8h 10m
2026-07-16 UPS236 CGN → STN Jul 16, 01:50 UTCJul 16, 02:45 UTC55m
2026-07-15 UPS237 EMA → CGN Jul 15, 21:00 UTCJul 15, 22:05 UTC1h 5m
2026-07-15 UPS237 PHL → EMA Jul 15, 12:30 UTCJul 15, 19:00 UTC6h 30m
2026-07-15 UPS232 EMA → PHL Jul 15, 03:10 UTCJul 15, 10:30 UTC7h 20m
2026-07-15 UPS232 CGN → EMA Jul 15, 00:20 UTCJul 15, 01:20 UTC1h 0m
2026-07-14 UPS6219 PHL → CGN Jul 14, 13:45 UTCJul 14, 21:30 UTC7h 45m
2026-07-14 UPS6219 PHL → CGN Jul 14, 13:54 UTCJul 14, 21:23 UTC7h 29m
2026-07-14 UPS219 - Jul 14, 10:35 UTCJul 14, 12:05 UTC1h 30m
2026-07-14 UPS219 SDF → PHL Jul 14, 10:38 UTCJul 14, 12:00 UTC1h 22m
2026-07-13 UPS105 - Jul 13, 22:45 UTCJul 14, 02:15 UTC3h 30m
2026-07-13 UPS105 ANC → SDF Jul 13, 22:33 UTCJul 14, 04:36 UTC6h 3m
2026-07-13 UPS105 ANC → SDF Jul 13, 22:33 UTCJul 14, 04:36 UTC6h 3m
2026-07-13 UPS105 KIX → ANC Jul 13, 13:50 UTCJul 13, 21:05 UTC7h 15m
2026-07-13 UPS105 - Jul 13, 10:30 UTCJul 13, 11:35 UTC1h 5m
2026-07-12 UPS104 - Jul 12, 03:55 UTCJul 12, 04:45 UTC50m
2026-07-11 UPS104 - Jul 11, 18:30 UTCJul 12, 02:05 UTC7h 35m
2026-07-11 UPS104 - Jul 11, 09:50 UTCJul 11, 16:15 UTC6h 25m
2026-07-11 UPS1171 - Jul 11, 02:20 UTCJul 11, 03:45 UTC1h 25m
2026-07-10 UPS1172 - Jul 10, 08:55 UTCJul 10, 10:00 UTC1h 5m
2026-07-10 UPS1172 SDF → MDT Jul 10, 08:33 UTCJul 10, 09:57 UTC1h 24m

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 N354UP page for operator, model, and routing details .

Mode-S A3F579 frequently asked

What is Mode-S code A3F579?
A3F579 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N354UP.
Where is Mode-S A3F579 registered?
Mode-S code A3F579 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 A3F579 broadcasting right now?
Yes. Mode-S A3F579 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3F579, octal 50772571, decimal 10,745,209.
What flights does A3F579 operate?
Mode-S A3F579 has broadcast 20 distinct callsigns, including UPS208, UPS237, UPS207, UPS104, UPS105.