Apparatus

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sensors Mode-S transponder

A53013

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N433UP · BOEING 757-200 · operated by UNITED PARCEL SERVICE CO

Hex
A53013
Octal
51230023
Decimal
10,825,747
Country
US
Tail
N433UP
Type
B752
Transponder active on ground
Flights observed
119
Distinct callsigns
6
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A53013.

Country allocation

The ICAO 24-bit address A53013 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 6 distinct

Callsign Airline Flights Last seen
UPS294 United Parcel Service 40 2026-06-03
UPS295 United Parcel Service 38 2026-06-02
UPS283 United Parcel Service 15 2026-05-20
UPS282 United Parcel Service 13 2026-05-20
UPS273 United Parcel Service 7 2026-05-25
UPS272 United Parcel Service 6 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 UPS294 RIC → CAE Jun 3, 02:00 UTCJun 3, 02:45 UTC45m
2026-06-02 UPS295 PRG → CGN Jun 2, 21:10 UTCJun 2, 22:00 UTC50m
2026-06-02 UPS295 PRG → CGN Jun 2, 19:05 UTCJun 2, 19:55 UTC50m
2026-06-02 UPS294 RIC → CAE Jun 2, 03:45 UTCJun 2, 04:35 UTC50m
2026-06-02 UPS294 RIC → CAE Jun 2, 02:00 UTCJun 2, 02:45 UTC45m
2026-06-01 UPS295 PRG → CGN Jun 1, 21:05 UTCJun 1, 22:05 UTC1h 0m
2026-06-01 UPS295 PRG → CGN Jun 1, 19:00 UTCJun 1, 19:50 UTC50m
2026-06-01 UPS294 RIC → CAE Jun 1, 02:25 UTCJun 1, 03:15 UTC50m
2026-06-01 UPS294 RIC → CAE Jun 1, 00:30 UTCJun 1, 01:20 UTC50m
2026-05-29 UPS295 PRG → CGN May 29, 21:30 UTCMay 29, 22:20 UTC50m
2026-05-29 UPS295 PRG → CGN May 29, 19:10 UTCMay 29, 19:55 UTC45m
2026-05-29 UPS294 RIC → CAE May 29, 03:50 UTCMay 29, 04:35 UTC45m
2026-05-29 UPS294 RIC → CAE May 29, 02:05 UTCMay 29, 02:50 UTC45m
2026-05-28 UPS295 PRG → CGN May 28, 21:10 UTCMay 28, 22:10 UTC1h 0m
2026-05-28 UPS295 PRG → CGN May 28, 19:05 UTCMay 28, 19:50 UTC45m
2026-05-28 UPS294 RIC → CAE May 28, 04:10 UTCMay 28, 04:55 UTC45m
2026-05-28 UPS294 RIC → CAE May 28, 02:05 UTCMay 28, 02:55 UTC50m
2026-05-27 UPS295 PRG → CGN May 27, 21:05 UTCMay 27, 22:00 UTC55m
2026-05-27 UPS295 PRG → CGN May 27, 19:05 UTCMay 27, 20:00 UTC55m
2026-05-27 UPS294 RIC → CAE May 27, 03:59 UTCMay 27, 04:49 UTC50m
2026-05-27 UPS294 RIC → CAE May 27, 01:59 UTCMay 27, 02:49 UTC50m
2026-05-26 UPS295 PRG → CGN May 26, 21:09 UTCMay 26, 22:05 UTC55m
2026-05-26 UPS295 PRG → CGN May 26, 19:05 UTCMay 26, 19:55 UTC50m
2026-05-26 UPS294 RIC → CAE May 26, 03:40 UTCMay 26, 04:24 UTC45m
2026-05-26 UPS294 RIC → CAE May 26, 01:55 UTCMay 26, 02:44 UTC50m
2026-05-25 UPS273 CGN → SDF May 25, 19:25 UTCMay 25, 20:55 UTC1h 30m
2026-05-25 UPS272 CGN → WAW May 25, 02:05 UTCMay 25, 03:30 UTC1h 25m
2026-05-22 UPS295 PRG → CGN May 22, 21:05 UTCMay 22, 22:00 UTC55m
2026-05-22 UPS295 PRG → CGN May 22, 19:05 UTCMay 22, 19:50 UTC45m
2026-05-22 UPS294 RIC → CAE May 22, 03:55 UTCMay 22, 04:45 UTC50m
2026-05-22 UPS294 RIC → CAE May 22, 02:05 UTCMay 22, 02:50 UTC45m
2026-05-21 UPS295 PRG → CGN May 21, 21:35 UTCMay 21, 22:45 UTC1h 10m
2026-05-21 UPS295 PRG → CGN May 21, 19:00 UTCMay 21, 19:55 UTC55m
2026-05-21 UPS294 RIC → CAE May 21, 03:55 UTCMay 21, 04:50 UTC55m
2026-05-21 UPS294 RIC → CAE May 21, 02:00 UTCMay 21, 02:50 UTC50m
2026-05-20 UPS283 ARN → CGN May 20, 20:20 UTCMay 20, 22:05 UTC1h 45m
2026-05-20 UPS282 CGN → ARN May 20, 02:05 UTCMay 20, 03:40 UTC1h 35m
2026-05-19 UPS295 PRG → CGN May 19, 21:05 UTCMay 19, 22:00 UTC55m
2026-05-19 UPS295 PRG → CGN May 19, 19:10 UTCMay 19, 20:00 UTC50m
2026-05-19 UPS294 RIC → CAE May 19, 03:45 UTCMay 19, 04:35 UTC50m
2026-05-19 UPS294 RIC → CAE May 19, 01:55 UTCMay 19, 02:45 UTC50m
2026-05-18 UPS273 CGN → SDF May 18, 19:20 UTCMay 18, 20:50 UTC1h 30m
2026-05-18 UPS272 CGN → WAW May 18, 02:10 UTCMay 18, 03:35 UTC1h 25m
2026-05-15 UPS295 PRG → CGN May 15, 21:05 UTCMay 15, 22:00 UTC55m
2026-05-15 UPS295 PRG → CGN May 15, 19:10 UTCMay 15, 19:55 UTC45m
2026-05-15 UPS294 RIC → CAE May 15, 03:40 UTCMay 15, 04:30 UTC50m
2026-05-15 UPS294 RIC → CAE May 15, 01:55 UTCMay 15, 02:45 UTC50m
2026-05-14 UPS295 PRG → CGN May 14, 21:05 UTCMay 14, 22:05 UTC1h 0m
2026-05-14 UPS295 PRG → CGN May 14, 19:05 UTCMay 14, 20:00 UTC55m
2026-05-14 UPS294 RIC → CAE May 14, 04:00 UTCMay 14, 04:51 UTC50m

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 N433UP page for operator, model, and routing details .

Mode-S A53013 frequently asked

What is Mode-S code A53013?
A53013 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N433UP.
Where is Mode-S A53013 registered?
Mode-S code A53013 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 A53013 broadcasting right now?
Mode-S A53013 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A53013, octal 51230023, decimal 10,825,747.
What flights does A53013 operate?
Mode-S A53013 has broadcast 6 distinct callsigns, including UPS294, UPS295, UPS283, UPS282, UPS273.