Apparatus

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sensors Mode-S transponder

A49375

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N394UP · BOEING 767-300 · operated by CARGO AIRCRAFT MANAGEMENT INC

Hex
A49375
Octal
51111565
Decimal
10,785,653
Country
US
Tail
N394UP
Type
B763
Broadcasting now · callsign UPS257 · 4,750 ft
Flights observed
143
Distinct callsigns
19
Country
US
Last broadcast
Jul 26, 13:00 UTC

Current position

A49375 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A49375 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 19 distinct

Callsign Airline Flights Last seen
UPS249 United Parcel Service 27 2026-07-24
UPS248 United Parcel Service 27 2026-07-24
UPS243 - 18 2026-07-16
UPS242 - 17 2026-07-16
UPS257 - 9 2026-07-17
UPS256 United Parcel Service 9 2026-07-17
UPS269 United Parcel Service 6 2026-07-26
UPS268 United Parcel Service 6 2026-07-25
UPS259 United Parcel Service 5 2026-04-24
UPS260 United Parcel Service 4 2026-04-24
UPS507 - 2 2026-06-14
UPS506 - 2 2026-06-11
UPS287 - 2 2026-06-29
UPS284 - 2 2026-06-29
UPS236 United Parcel Service 2 2026-07-19
UPS205 United Parcel Service 2 2026-07-20
UPS505 United Parcel Service 1 2026-05-04
UPS267 United Parcel Service 1 2026-04-30
UPS266 United Parcel Service 1 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UPS269 IST → IST Jul 26, 10:15 UTCJul 26, 13:00 UTC2h 45m
2026-07-25 UPS268 CGN → IST Jul 25, 05:30 UTCJul 25, 08:00 UTC2h 30m
2026-07-24 UPS249 DUB → SNN Jul 24, 20:35 UTCJul 24, 21:55 UTC1h 20m
2026-07-24 UPS249 DUB → SNN Jul 24, 18:50 UTCJul 24, 19:20 UTC30m
2026-07-24 UPS248 CGN → DUB Jul 24, 04:50 UTCJul 24, 05:10 UTC20m
2026-07-24 UPS248 CGN → DUB Jul 24, 02:15 UTCJul 24, 03:35 UTC1h 20m
2026-07-23 UPS249 DUB → SNN Jul 23, 20:45 UTCJul 23, 22:10 UTC1h 25m
2026-07-23 UPS249 DUB → SNN Jul 23, 18:50 UTCJul 23, 19:15 UTC25m
2026-07-23 UPS248 CGN → DUB Jul 23, 04:30 UTCJul 23, 04:55 UTC25m
2026-07-23 UPS248 CGN → DUB Jul 23, 02:10 UTCJul 23, 03:25 UTC1h 15m
2026-07-22 UPS249 DUB → SNN Jul 22, 20:40 UTCJul 22, 22:15 UTC1h 35m
2026-07-22 UPS249 DUB → SNN Jul 22, 18:55 UTCJul 22, 19:25 UTC30m
2026-07-22 UPS248 CGN → DUB Jul 22, 04:45 UTCJul 22, 05:10 UTC25m
2026-07-22 UPS248 CGN → DUB Jul 22, 02:15 UTCJul 22, 03:45 UTC1h 30m
2026-07-21 UPS249 DUB → SNN Jul 21, 22:25 UTCJul 21, 23:55 UTC1h 30m
2026-07-21 UPS248 CGN → DUB Jul 21, 02:15 UTCJul 21, 03:35 UTC1h 20m
2026-07-20 UPS205 PHL → CGN Jul 20, 22:50 UTCJul 20, 23:40 UTC50m
2026-07-19 UPS236 CGN → STN Jul 19, 23:30 UTCJul 20, 00:30 UTC1h 0m
2026-07-17 UPS257 - Jul 17, 21:05 UTCJul 17, 23:10 UTC2h 5m
2026-07-17 UPS256 CGN → MAD Jul 17, 01:45 UTCJul 17, 03:59 UTC2h 15m
2026-07-16 UPS243 - Jul 16, 21:00 UTCJul 16, 22:59 UTC2h 0m
2026-07-16 UPS243 VLC → BCN Jul 16, 18:59 UTCJul 16, 19:35 UTC35m
2026-07-16 UPS242 BCN → VLC Jul 16, 04:45 UTCJul 16, 05:20 UTC35m
2026-07-16 UPS242 CGN → BCN Jul 16, 01:50 UTCJul 16, 03:30 UTC1h 40m
2026-07-15 UPS249 DUB → CGN Jul 15, 20:35 UTCJul 15, 22:05 UTC1h 30m
2026-07-15 UPS249 - Jul 15, 18:50 UTCJul 15, 19:10 UTC20m
2026-07-15 UPS248 - Jul 15, 04:30 UTCJul 15, 04:55 UTC25m
2026-07-15 UPS248 CGN → DUB Jul 15, 02:15 UTCJul 15, 03:40 UTC1h 25m
2026-07-14 UPS243 BCN → CGN Jul 14, 21:30 UTCJul 14, 23:10 UTC1h 39m
2026-07-14 UPS243 VLC → BCN Jul 14, 19:20 UTCJul 14, 19:55 UTC35m
2026-07-14 UPS242 BCN → VLC Jul 14, 04:40 UTCJul 14, 05:20 UTC40m
2026-07-14 UPS242 CGN → BCN Jul 14, 01:50 UTCJul 14, 03:40 UTC1h 50m
2026-07-13 UPS257 MAD → CGN Jul 13, 21:00 UTCJul 13, 23:05 UTC2h 5m
2026-07-13 UPS256 CGN → MAD Jul 13, 00:45 UTCJul 13, 02:55 UTC2h 10m
2026-07-10 UPS249 DUB → CGN Jul 10, 20:20 UTCJul 10, 21:45 UTC1h 26m
2026-07-10 UPS249 - Jul 10, 18:50 UTCJul 10, 19:10 UTC20m
2026-07-10 UPS248 - Jul 10, 04:50 UTCJul 10, 05:20 UTC30m
2026-07-10 UPS248 CGN → DUB Jul 10, 02:15 UTCJul 10, 03:40 UTC1h 25m
2026-07-09 UPS249 DUB → SNN Jul 9, 20:35 UTCJul 9, 21:50 UTC1h 15m
2026-07-09 UPS249 DUB → SNN Jul 9, 19:05 UTCJul 9, 19:30 UTC25m
2026-07-09 UPS248 - Jul 9, 05:20 UTCJul 9, 05:40 UTC20m
2026-07-09 UPS248 CGN → DUB Jul 9, 02:15 UTCJul 9, 03:35 UTC1h 20m
2026-07-08 UPS249 DUB → SNN Jul 8, 20:40 UTCJul 8, 22:00 UTC1h 20m
2026-07-08 UPS249 DUB → SNN Jul 8, 19:00 UTCJul 8, 19:30 UTC30m
2026-07-08 UPS248 - Jul 8, 04:45 UTCJul 8, 05:10 UTC25m
2026-07-08 UPS248 CGN → DUB Jul 8, 02:20 UTCJul 8, 03:40 UTC1h 20m
2026-07-07 UPS249 DUB → SNN Jul 7, 20:40 UTCJul 7, 22:00 UTC1h 20m
2026-07-07 UPS249 DUB → SNN Jul 7, 18:55 UTCJul 7, 19:30 UTC35m
2026-07-07 UPS248 - Jul 7, 04:45 UTCJul 7, 05:10 UTC25m
2026-07-07 UPS248 CGN → DUB Jul 7, 02:20 UTCJul 7, 03:45 UTC1h 25m

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 N394UP page for operator, model, and routing details .

Mode-S A49375 frequently asked

What is Mode-S code A49375?
A49375 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N394UP.
Where is Mode-S A49375 registered?
Mode-S code A49375 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 A49375 broadcasting right now?
Yes. Mode-S A49375 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A49375, octal 51111565, decimal 10,785,653.
What flights does A49375 operate?
Mode-S A49375 has broadcast 19 distinct callsigns, including UPS249, UPS248, UPS243, UPS242, UPS257.