Apparatus

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sensors Mode-S transponder

A3B90E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N339UP · BOEING 767-300 · operated by CC & E I LLC

Hex
A3B90E
Octal
50734416
Decimal
10,729,742
Country
US
Tail
N339UP
Type
B763
Broadcasting now · callsign UPS919 · 4,425 ft
Flights observed
354
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Current position

A3B90E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3B90E 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
UPS920 United Parcel Service 9 2026-06-11
UPS105 United Parcel Service 8 2026-06-24
UPS7938 - 7 2026-07-01
UPS5933 United Parcel Service 7 2026-06-10
UPS975 - 6 2026-06-30
UPS962 - 6 2026-06-30
UPS2945 - 6 2026-06-30
UPS219 United Parcel Service 6 2026-04-15
UPS928 United Parcel Service 5 2026-06-14
UPS5978 - 5 2026-06-28
UPS5905 United Parcel Service 5 2026-06-16
UPS5772 United Parcel Service 5 2026-06-03
UPS5338 United Parcel Service 5 2026-05-02
UPS339 - 5 2026-07-02
UPS208 United Parcel Service 5 2026-04-16
UPS927 United Parcel Service 4 2026-06-13
UPS5993 United Parcel Service 4 2026-06-07
UPS5944 United Parcel Service 4 2026-06-12
UPS5012 - 4 2026-07-08
UPS313 - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UPS5910 - Jul 14, 19:05 UTCJul 14, 22:35 UTC3h 30m
2026-07-14 UPS5910 SDF → ONT Jul 14, 18:56 UTCJul 14, 22:34 UTC3h 38m
2026-07-14 UPS5193 PHL → SDF Jul 14, 13:20 UTCJul 14, 14:35 UTC1h 15m
2026-07-14 UPS5193 PHL → SDF Jul 14, 13:20 UTCJul 14, 14:39 UTC1h 19m
2026-07-14 UPS1194 - Jul 14, 08:35 UTCJul 14, 10:00 UTC1h 25m
2026-07-14 UPS1194 SDF → PHL Jul 14, 08:27 UTCJul 14, 10:02 UTC1h 35m
2026-07-14 UPS741 - Jul 14, 02:00 UTCJul 14, 03:15 UTC1h 15m
2026-07-14 UPS741 TUL → SDF Jul 14, 01:53 UTCJul 14, 03:21 UTC1h 28m
2026-07-10 UPS742 - Jul 10, 09:30 UTCJul 10, 10:50 UTC1h 20m
2026-07-10 UPS742 SDF → TUL Jul 10, 09:25 UTCJul 10, 10:51 UTC1h 26m
2026-07-10 UPS793 DFW → SDF Jul 10, 03:31 UTCJul 10, 05:45 UTC2h 14m
2026-07-10 UPS793 - Jul 10, 03:30 UTCJul 10, 05:45 UTC2h 15m
2026-07-09 UPS335 OPF → DFW Jul 9, 22:20 UTCJul 10, 00:50 UTC2h 30m
2026-07-09 UPS335 - Jul 9, 19:15 UTCJul 9, 20:55 UTC1h 40m
2026-07-09 UPS335 - Jul 9, 16:40 UTCJul 9, 16:50 UTC10m
2026-07-09 UPS334 JAX → SJU Jul 9, 14:30 UTCJul 9, 14:50 UTC20m
2026-07-09 UPS334 JAX → SJU Jul 9, 12:05 UTCJul 9, 12:50 UTC45m
2026-07-09 UPS334 JAX → SJU Jul 9, 11:57 UTCJul 9, 14:48 UTC2h 51m
2026-07-09 UPS1322 - Jul 9, 08:45 UTCJul 9, 10:05 UTC1h 20m
2026-07-09 UPS1322 SDF → JAX Jul 9, 08:40 UTCJul 9, 10:04 UTC1h 24m
2026-07-09 UPS1013 BOS → SDF Jul 9, 02:25 UTCJul 9, 04:15 UTC1h 50m
2026-07-08 UPS5012 - Jul 8, 18:10 UTCJul 8, 23:00 UTC4h 50m
2026-07-08 UPS5609 ORD → ONT Jul 8, 11:25 UTCJul 8, 14:55 UTC3h 30m
2026-07-08 UPS5609 ORD → ONT Jul 8, 11:23 UTCJul 8, 14:53 UTC3h 30m
2026-07-08 UPS606 - Jul 8, 08:55 UTCJul 8, 09:40 UTC45m
2026-07-08 UPS606 SDF → ORD Jul 8, 08:53 UTCJul 8, 09:49 UTC56m
2026-07-08 UPS1337 TPA → SDF Jul 8, 01:50 UTCJul 8, 03:25 UTC1h 35m
2026-07-08 UPS1337 TPA → SDF Jul 8, 01:43 UTCJul 8, 03:25 UTC1h 42m
2026-07-07 UPS5354 - Jul 7, 21:25 UTCJul 7, 23:05 UTC1h 40m
2026-07-07 UPS2929 - Jul 7, 13:45 UTCJul 7, 17:35 UTC3h 50m
2026-07-07 UPS2929 SAN → SDF Jul 7, 13:40 UTCJul 7, 17:25 UTC3h 45m
2026-07-07 UPS922 - Jul 7, 08:00 UTCJul 7, 11:35 UTC3h 35m
2026-07-07 UPS922 SDF → SAN Jul 7, 07:55 UTCJul 7, 11:39 UTC3h 44m
2026-07-07 UPS1231 - Jul 7, 02:20 UTCJul 7, 03:30 UTC1h 10m
2026-07-03 UPS1232 - Jul 3, 08:25 UTCJul 3, 09:25 UTC1h 0m
2026-07-03 UPS1232 SDF → RIC Jul 3, 08:15 UTCJul 3, 09:29 UTC1h 14m
2026-07-03 UPS973 PDX → SDF Jul 3, 02:00 UTCJul 3, 05:45 UTC3h 45m
2026-07-02 UPS2978 - Jul 2, 18:20 UTCJul 2, 22:30 UTC4h 10m
2026-07-02 UPS2978 SDF → PDX Jul 2, 18:19 UTCJul 2, 22:29 UTC4h 10m
2026-07-02 UPS5359 MCO → SDF Jul 2, 11:45 UTCJul 2, 13:20 UTC1h 35m
2026-07-02 UPS1326 - Jul 2, 08:20 UTCJul 2, 09:55 UTC1h 35m
2026-07-02 UPS339 - Jul 2, 00:50 UTCJul 2, 04:25 UTC3h 35m
2026-07-02 UPS339 SJU → SDF Jul 2, 00:50 UTCJul 2, 04:35 UTC3h 45m
2026-07-01 UPS7938 - Jul 1, 22:20 UTCJul 1, 22:40 UTC20m
2026-07-01 UPS7938 - Jul 1, 19:05 UTCJul 1, 20:20 UTC1h 15m
2026-07-01 UPS7938 SDF → SJU Jul 1, 19:04 UTCJul 1, 22:41 UTC3h 37m
2026-07-01 UPS2861 - Jul 1, 12:20 UTCJul 1, 15:10 UTC2h 50m
2026-07-01 UPS2861 PHX → SDF Jul 1, 12:17 UTCJul 1, 15:11 UTC2h 54m
2026-07-01 UPS850 - Jul 1, 09:30 UTCJul 1, 10:15 UTC45m
2026-07-01 UPS850 ONT → PHX Jul 1, 09:33 UTCJul 1, 10:13 UTC40m

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 N339UP page for operator, model, and routing details .

Mode-S A3B90E frequently asked

What is Mode-S code A3B90E?
A3B90E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N339UP.
Where is Mode-S A3B90E registered?
Mode-S code A3B90E 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 A3B90E broadcasting right now?
Yes. Mode-S A3B90E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3B90E, octal 50734416, decimal 10,729,742.
What flights does A3B90E operate?
Mode-S A3B90E has broadcast 20 distinct callsigns, including UPS920, UPS105, UPS7938, UPS5933, UPS975.