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
No current signal · last broadcast 9h ago
Flights observed
231
Distinct callsigns
6
Country
US
Last broadcast
9h 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 - 87 2026-07-16
UPS295 - 85 2026-07-16
UPS283 United Parcel Service 22 2026-07-17
UPS282 - 20 2026-07-17
UPS273 - 9 2026-07-13
UPS272 - 8 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 UPS283 ARN → CGN Jul 17, 20:10 UTCJul 17, 21:55 UTC1h 45m
2026-07-17 UPS282 CGN → ARN Jul 17, 02:15 UTCJul 17, 03:45 UTC1h 30m
2026-07-16 UPS295 PRG → CGN Jul 16, 21:40 UTCJul 16, 22:49 UTC1h 10m
2026-07-16 UPS295 BUD → PRG Jul 16, 19:05 UTCJul 16, 20:00 UTC55m
2026-07-16 UPS294 - Jul 16, 04:00 UTCJul 16, 04:50 UTC50m
2026-07-16 UPS294 CGN → PRG Jul 16, 02:10 UTCJul 16, 03:00 UTC50m
2026-07-15 UPS283 ARN → CGN Jul 15, 20:25 UTCJul 15, 22:10 UTC1h 45m
2026-07-15 UPS282 - Jul 15, 02:10 UTCJul 15, 04:00 UTC1h 50m
2026-07-14 UPS295 PRG → CGN Jul 14, 21:10 UTCJul 14, 22:00 UTC50m
2026-07-14 UPS295 - Jul 14, 19:10 UTCJul 14, 20:00 UTC50m
2026-07-14 UPS294 PRG → BUD Jul 14, 04:00 UTCJul 14, 04:45 UTC45m
2026-07-14 UPS294 CGN → PRG Jul 14, 02:15 UTCJul 14, 03:00 UTC45m
2026-07-13 UPS273 - Jul 13, 19:30 UTCJul 13, 20:55 UTC1h 25m
2026-07-13 UPS272 CGN → WAW Jul 13, 02:10 UTCJul 13, 03:25 UTC1h 15m
2026-07-10 UPS295 PRG → CGN Jul 10, 21:10 UTCJul 10, 22:00 UTC50m
2026-07-10 UPS295 PRG → CGN Jul 10, 19:10 UTCJul 10, 19:55 UTC45m
2026-07-10 UPS294 PRG → BUD Jul 10, 04:00 UTCJul 10, 04:45 UTC45m
2026-07-10 UPS294 CGN → PRG Jul 10, 02:05 UTCJul 10, 02:55 UTC50m
2026-07-09 UPS295 PRG → CGN Jul 9, 21:05 UTCJul 9, 21:55 UTC50m
2026-07-09 UPS295 PRG → CGN Jul 9, 19:10 UTCJul 9, 20:00 UTC50m
2026-07-09 UPS294 PRG → BUD Jul 9, 04:05 UTCJul 9, 04:50 UTC45m
2026-07-09 UPS294 CGN → PRG Jul 9, 02:05 UTCJul 9, 02:55 UTC50m
2026-07-08 UPS283 ARN → CGN Jul 8, 20:15 UTCJul 8, 21:50 UTC1h 35m
2026-07-08 UPS282 CGN → ARN Jul 8, 02:10 UTCJul 8, 03:50 UTC1h 40m
2026-07-07 UPS283 ARN → CGN Jul 7, 20:10 UTCJul 7, 21:50 UTC1h 40m
2026-07-07 UPS282 CGN → ARN Jul 7, 02:00 UTCJul 7, 03:35 UTC1h 35m
2026-07-06 UPS295 PRG → CGN Jul 6, 20:10 UTCJul 6, 21:50 UTC1h 40m
2026-07-06 UPS294 CGN → BUD Jul 6, 01:25 UTCJul 6, 02:45 UTC1h 20m
2026-07-03 UPS283 ARN → CGN Jul 3, 20:15 UTCJul 3, 22:00 UTC1h 45m
2026-07-03 UPS282 CGN → ARN Jul 3, 02:15 UTCJul 3, 03:50 UTC1h 35m
2026-07-02 UPS295 PRG → CGN Jul 2, 21:15 UTCJul 2, 22:20 UTC1h 5m
2026-07-02 UPS295 PRG → CGN Jul 2, 19:10 UTCJul 2, 20:00 UTC50m
2026-07-02 UPS294 PRG → BUD Jul 2, 04:10 UTCJul 2, 05:05 UTC55m
2026-07-02 UPS294 CGN → PRG Jul 2, 02:10 UTCJul 2, 03:00 UTC50m
2026-07-01 UPS283 ARN → CGN Jul 1, 20:15 UTCJul 1, 21:55 UTC1h 40m
2026-07-01 UPS282 CGN → ARN Jul 1, 02:15 UTCJul 1, 03:45 UTC1h 30m
2026-06-30 UPS295 PRG → CGN Jun 30, 21:25 UTCJun 30, 22:25 UTC1h 0m
2026-06-30 UPS295 PRG → CGN Jun 30, 19:15 UTCJun 30, 20:00 UTC45m
2026-06-30 UPS294 - Jun 30, 04:05 UTCJun 30, 04:50 UTC45m
2026-06-30 UPS294 CGN → PRG Jun 30, 02:10 UTCJun 30, 03:00 UTC50m
2026-06-29 UPS273 - Jun 29, 19:29 UTCJun 29, 20:49 UTC1h 20m
2026-06-29 UPS272 CGN → WAW Jun 29, 02:09 UTCJun 29, 03:34 UTC1h 25m
2026-06-26 UPS295 PRG → CGN Jun 26, 21:04 UTCJun 26, 22:14 UTC1h 10m
2026-06-26 UPS295 PRG → CGN Jun 26, 19:00 UTCJun 26, 19:55 UTC55m
2026-06-26 UPS294 PRG → BUD Jun 26, 03:54 UTCJun 26, 04:34 UTC40m
2026-06-26 UPS294 CGN → PRG Jun 26, 02:05 UTCJun 26, 02:50 UTC45m
2026-06-25 UPS295 PRG → CGN Jun 25, 21:10 UTCJun 25, 22:10 UTC1h 0m
2026-06-25 UPS295 PRG → CGN Jun 25, 19:05 UTCJun 25, 19:49 UTC45m
2026-06-25 UPS294 PRG → BUD Jun 25, 03:50 UTCJun 25, 04:35 UTC45m
2026-06-25 UPS294 CGN → PRG Jun 25, 02:05 UTCJun 25, 02:54 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?
No active broadcast right now. Last signal was 9h ago.
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.