Apparatus

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sensors Mode-S transponder

A3500F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N312UP · BOEING 767-300 · operated by C C & E I LLC

Hex
A3500F
Octal
50650017
Decimal
10,702,863
Country
US
Tail
N312UP
Type
B763
No current signal · last broadcast 2h ago
Flights observed
369
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A3500F.

Country allocation

The ICAO 24-bit address A3500F 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
UPS5338 - 7 2026-06-30
UPS5345 - 6 2026-06-28
UPS5354 - 5 2026-06-27
UPS1340 - 5 2026-06-26
UPS1321 - 5 2026-06-26
UPS975 United Parcel Service 4 2026-05-20
UPS974 United Parcel Service 4 2026-07-08
UPS5978 United Parcel Service 4 2026-05-19
UPS5886 United Parcel Service 4 2026-06-08
UPS2971 - 4 2026-07-08
UPS2968 United Parcel Service 4 2026-06-04
UPS2946 - 4 2026-06-23
UPS2945 United Parcel Service 4 2026-05-20
UPS990 United Parcel Service 3 2026-04-23
UPS981 - 3 2026-06-27
UPS962 United Parcel Service 3 2026-05-20
UPS945 - 3 2026-06-24
UPS920 United Parcel Service 3 2026-05-05
UPS915 United Parcel Service 3 2026-04-18
UPS904 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UPS2567 MSP → SDF Jul 14, 16:05 UTCJul 14, 17:25 UTC1h 20m
2026-07-14 UPS2567 MSP → SDF Jul 14, 16:04 UTCJul 14, 17:24 UTC1h 20m
2026-07-14 UPS560 - Jul 14, 13:10 UTCJul 14, 14:35 UTC1h 25m
2026-07-14 UPS560 SDF → MSP Jul 14, 13:11 UTCJul 14, 14:35 UTC1h 24m
2026-07-14 UPS9704 ATL → SDF Jul 14, 09:30 UTCJul 14, 10:25 UTC55m
2026-07-14 UPS9704 ATL → SDF Jul 14, 09:25 UTCJul 14, 10:24 UTC59m
2026-07-14 UPS1306 - Jul 14, 07:20 UTCJul 14, 08:10 UTC50m
2026-07-14 UPS1306 SDF → ATL Jul 14, 07:23 UTCJul 14, 08:14 UTC51m
2026-07-13 UPS7983 - Jul 13, 01:50 UTCJul 13, 05:25 UTC3h 35m
2026-07-12 UPS7938 - Jul 12, 23:30 UTCJul 12, 23:50 UTC20m
2026-07-12 UPS7938 - Jul 12, 20:05 UTCJul 12, 21:50 UTC1h 45m
2026-07-12 UPS1071 EWR → SDF Jul 12, 12:15 UTCJul 12, 13:45 UTC1h 30m
2026-07-11 UPS5076 - Jul 11, 21:00 UTCJul 11, 22:25 UTC1h 25m
2026-07-11 UPS2085 EWR → SDF Jul 11, 13:35 UTCJul 11, 15:10 UTC1h 35m
2026-07-11 UPS1084 - Jul 11, 10:35 UTCJul 11, 12:05 UTC1h 30m
2026-07-11 UPS903 - Jul 11, 02:45 UTCJul 11, 06:35 UTC3h 50m
2026-07-10 UPS5900 - Jul 10, 20:35 UTCJul 11, 00:30 UTC3h 55m
2026-07-10 UPS5900 SDF → LAX Jul 10, 20:25 UTCJul 11, 00:22 UTC3h 57m
2026-07-10 UPS5905 - Jul 10, 13:35 UTCJul 10, 17:10 UTC3h 35m
2026-07-10 UPS5905 LAX → SDF Jul 10, 13:21 UTCJul 10, 17:09 UTC3h 48m
2026-07-10 UPS904 - Jul 10, 08:15 UTCJul 10, 12:10 UTC3h 55m
2026-07-10 UPS1355 - Jul 10, 03:00 UTCJul 10, 03:55 UTC55m
2026-07-10 UPS1355 BHM → SDF Jul 10, 02:55 UTCJul 10, 03:51 UTC56m
2026-07-09 UPS1356 - Jul 9, 09:00 UTCJul 9, 09:45 UTC45m
2026-07-09 UPS683 - Jul 9, 02:55 UTCJul 9, 04:40 UTC1h 45m
2026-07-08 UPS5684 SDF → OMA Jul 8, 20:55 UTCJul 8, 22:15 UTC1h 20m
2026-07-08 UPS2971 PDX → SDF Jul 8, 13:35 UTCJul 8, 17:30 UTC3h 55m
2026-07-08 UPS2971 PDX → SDF Jul 8, 13:32 UTCJul 8, 17:27 UTC3h 55m
2026-07-08 UPS974 SDF → PDX Jul 8, 08:05 UTCJul 8, 12:10 UTC4h 5m
2026-07-08 UPS974 SDF → PDX Jul 8, 07:52 UTCJul 8, 12:09 UTC4h 17m
2026-07-08 UPS1083 EWR → SDF Jul 8, 02:50 UTCJul 8, 04:30 UTC1h 40m
2026-07-07 UPS2076 - Jul 7, 20:15 UTCJul 7, 21:50 UTC1h 35m
2026-07-07 UPS5063 - Jul 7, 12:15 UTCJul 7, 14:00 UTC1h 45m
2026-07-07 UPS5063 BDL → SDF Jul 7, 12:09 UTCJul 7, 13:58 UTC1h 49m
2026-07-07 UPS1122 PHL → BDL Jul 7, 08:10 UTCJul 7, 08:45 UTC35m
2026-07-07 UPS1188 - Jul 7, 05:15 UTCJul 7, 06:30 UTC1h 15m
2026-07-07 UPS1188 SDF → PHL Jul 7, 05:08 UTCJul 7, 06:36 UTC1h 28m
2026-07-07 UPS1285 - Jul 7, 01:30 UTCJul 7, 02:20 UTC50m
2026-07-07 UPS1285 CLT → SDF Jul 7, 01:31 UTCJul 7, 02:25 UTC54m
2026-07-05 UPS5282 - Jul 5, 21:25 UTCJul 5, 22:20 UTC55m
2026-07-03 UPS9311 ATL → SDF Jul 3, 20:50 UTCJul 3, 21:40 UTC50m
2026-07-03 UPS9311 ATL → SDF Jul 3, 20:42 UTCJul 3, 21:38 UTC56m
2026-07-02 UPS1302 - Jul 2, 07:50 UTCJul 2, 08:35 UTC45m
2026-07-02 UPS1302 SDF → ATL Jul 2, 07:45 UTCJul 2, 08:48 UTC1h 3m
2026-07-02 UPS1271 - Jul 2, 03:20 UTCJul 2, 04:05 UTC45m
2026-07-02 UPS1271 GSO → SDF Jul 2, 03:19 UTCJul 2, 04:12 UTC53m
2026-07-01 UPS9302 - Jul 1, 23:40 UTCJul 2, 00:35 UTC55m
2026-06-30 UPS5338 - Jun 30, 21:25 UTCJun 30, 22:35 UTC1h 10m
2026-06-30 UPS5338 SDF → JAX Jun 30, 21:21 UTCJun 30, 22:40 UTC1h 19m
2026-06-30 UPS2861 - Jun 30, 12:30 UTCJun 30, 15:25 UTC2h 55m

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 N312UP page for operator, model, and routing details .

Mode-S A3500F frequently asked

What is Mode-S code A3500F?
A3500F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N312UP.
Where is Mode-S A3500F registered?
Mode-S code A3500F 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 A3500F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3500F, octal 50650017, decimal 10,702,863.
What flights does A3500F operate?
Mode-S A3500F has broadcast 20 distinct callsigns, including UPS5338, UPS5345, UPS5354, UPS1340, UPS1321.