Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3979F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N330UP · BOEING 767-300 · operated by C C & E I LLC

Hex
A3979F
Octal
50713637
Decimal
10,721,183
Country
US
Tail
N330UP
Type
B763
No current signal · last broadcast 27d ago
Flights observed
246
Distinct callsigns
20
Country
US
Last broadcast
27d ago

Last known position

Most recent position reported by Mode-S A3979F.

Country allocation

The ICAO 24-bit address A3979F 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
UPS118 - 11 2026-06-17
UPS119 - 9 2026-06-16
UPS196 - 8 2026-06-19
UPS167 - 8 2026-06-18
UPS127 - 8 2026-06-18
UPS126 - 8 2026-06-19
UPS104 United Parcel Service 7 2026-06-09
UPS137 - 6 2026-06-15
UPS195 - 5 2026-06-16
UPS166 United Parcel Service 5 2026-06-18
UPS956 United Parcel Service 4 2026-05-06
UPS473 United Parcel Service 4 2026-05-01
UPS2957 United Parcel Service 4 2026-05-06
UPS1335 United Parcel Service 4 2026-04-18
UPS125 - 4 2026-06-19
UPS613 United Parcel Service 3 2026-05-06
UPS474 United Parcel Service 3 2026-04-30
UPS312 United Parcel Service 3 2026-04-21
UPS2907 United Parcel Service 3 2026-04-14
UPS2344 United Parcel Service 3 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-20 UPS26 SDF → ANC Jun 20, 14:35 UTCJun 20, 16:39 UTC2h 5m
2026-06-20 UPS173 - Jun 20, 11:59 UTCJun 20, 12:24 UTC25m
2026-06-20 UPS174 - Jun 20, 03:59 UTCJun 20, 04:20 UTC20m
2026-06-19 UPS196 - Jun 19, 22:14 UTCJun 19, 22:55 UTC40m
2026-06-19 UPS196 - Jun 19, 20:04 UTCJun 19, 20:14 UTC10m
2026-06-19 UPS126 - Jun 19, 17:09 UTCJun 19, 17:19 UTC10m
2026-06-19 UPS126 - Jun 19, 13:44 UTCJun 19, 14:44 UTC1h 0m
2026-06-19 UPS125 - Jun 19, 11:39 UTCJun 19, 12:25 UTC45m
2026-06-19 UPS124 - Jun 19, 01:24 UTCJun 19, 01:59 UTC35m
2026-06-18 UPS127 - Jun 18, 23:10 UTCJun 19, 00:05 UTC55m
2026-06-18 UPS127 - Jun 18, 20:55 UTCJun 18, 21:05 UTC10m
2026-06-18 UPS166 HKG → SIN Jun 18, 17:40 UTCJun 18, 18:00 UTC20m
2026-06-18 UPS166 HKG → SIN Jun 18, 14:15 UTCJun 18, 14:45 UTC30m
2026-06-18 UPS166 HKG → SIN Jun 18, 08:30 UTCJun 18, 11:30 UTC3h 0m
2026-06-18 UPS167 - Jun 18, 04:40 UTCJun 18, 06:00 UTC1h 20m
2026-06-18 UPS167 - Jun 18, 01:20 UTCJun 18, 01:45 UTC25m
2026-06-17 UPS167 - Jun 17, 23:10 UTCJun 17, 23:30 UTC20m
2026-06-17 UPS167 - Jun 17, 20:20 UTCJun 17, 20:30 UTC10m
2026-06-17 UPS118 - Jun 17, 16:40 UTCJun 17, 16:55 UTC15m
2026-06-17 UPS118 - Jun 17, 12:35 UTCJun 17, 14:20 UTC1h 45m
2026-06-16 UPS119 - Jun 16, 22:30 UTCJun 17, 00:00 UTC1h 30m
2026-06-16 UPS119 - Jun 16, 20:15 UTCJun 16, 20:25 UTC10m
2026-06-16 UPS195 - Jun 16, 16:20 UTCJun 16, 16:39 UTC20m
2026-06-16 UPS195 - Jun 16, 13:40 UTCJun 16, 14:05 UTC25m
2026-06-15 UPS196 - Jun 15, 22:45 UTCJun 15, 23:25 UTC40m
2026-06-15 UPS196 - Jun 15, 20:34 UTCJun 15, 20:45 UTC10m
2026-06-15 UPS137 - Jun 15, 17:04 UTCJun 15, 17:20 UTC15m
2026-06-15 UPS137 - Jun 15, 15:25 UTCJun 15, 15:59 UTC35m
2026-06-14 UPS139 SYD → CRK Jun 14, 11:25 UTCJun 14, 19:35 UTC8h 10m
2026-06-14 UPS134 CRK → SYD Jun 14, 01:35 UTCJun 14, 09:15 UTC7h 41m
2026-06-13 UPS138 - Jun 13, 21:45 UTCJun 13, 23:25 UTC1h 40m
2026-06-12 UPS137 - Jun 12, 20:25 UTCJun 12, 20:40 UTC15m
2026-06-12 UPS137 - Jun 12, 18:50 UTCJun 12, 19:20 UTC30m
2026-06-11 UPS138 SZX → SYD Jun 11, 21:40 UTCJun 11, 23:20 UTC1h 40m
2026-06-11 UPS195 - Jun 11, 16:15 UTCJun 11, 16:25 UTC10m
2026-06-11 UPS195 - Jun 11, 13:20 UTCJun 11, 13:45 UTC25m
2026-06-10 UPS196 - Jun 10, 22:20 UTCJun 10, 23:00 UTC40m
2026-06-10 UPS196 - Jun 10, 20:05 UTCJun 10, 20:20 UTC15m
2026-06-10 UPS126 RFD → JFK Jun 10, 17:10 UTCJun 10, 17:30 UTC20m
2026-06-10 UPS126 RFD → JFK Jun 10, 13:45 UTCJun 10, 14:35 UTC50m
2026-06-10 UPS105 KIX → ANC Jun 10, 04:55 UTCJun 10, 11:05 UTC6h 10m
2026-06-09 UPS104 RFD → KIX Jun 9, 18:00 UTCJun 10, 01:40 UTC7h 40m
2026-06-09 UPS104 RFD → KIX Jun 9, 08:40 UTCJun 9, 15:00 UTC6h 20m
2026-06-09 UPS104 RFD → KIX Jun 9, 08:39 UTCJun 9, 15:00 UTC6h 21m
2026-06-09 UPS1355 BHM → SDF Jun 9, 02:55 UTCJun 9, 03:55 UTC1h 0m
2026-06-05 UPS1356 SDF → BHM Jun 5, 09:15 UTCJun 5, 09:55 UTC40m
2026-06-05 UPS1443 LCK → SDF Jun 5, 03:15 UTCJun 5, 03:55 UTC40m
2026-06-04 UPS1444 SDF → LCK Jun 4, 08:30 UTCJun 4, 09:00 UTC30m
2026-06-04 UPS1444 SDF → LCK Jun 4, 08:29 UTCJun 4, 08:59 UTC30m
2026-06-04 UPS3345 MIA → SDF Jun 4, 03:15 UTCJun 4, 05:15 UTC2h 0m

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 N330UP page for operator, model, and routing details .

Mode-S A3979F frequently asked

What is Mode-S code A3979F?
A3979F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N330UP.
Where is Mode-S A3979F registered?
Mode-S code A3979F 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 A3979F broadcasting right now?
No active broadcast right now. Last signal was 27d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3979F, octal 50713637, decimal 10,721,183.
What flights does A3979F operate?
Mode-S A3979F has broadcast 20 distinct callsigns, including UPS118, UPS119, UPS196, UPS167, UPS127.