sensors Mode-S transponder

A524EE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N430UP · BOEING 757-200 · operated by UNITED PARCEL SERVICE CO

Hex
A524EE
Octal
51222356
Decimal
10,822,894
Country
US
Tail
N430UP
Type
B752
No current signal · last broadcast 23h ago
Flights observed
120
Distinct callsigns
20
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A524EE.

Country allocation

The ICAO 24-bit address A524EE 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-12 UPS5135 - Jun 12, 14:20 UTCJun 12, 15:55 UTC1h 35m
2026-06-12 UPS9733 JFK → SDF Jun 12, 12:20 UTCJun 12, 13:10 UTC50m
2026-06-12 UPS9733 JFK → SDF Jun 12, 12:23 UTCJun 12, 13:18 UTC55m
2026-06-12 UPS1052 MHT → BGR Jun 12, 11:00 UTCJun 12, 11:30 UTC30m
2026-06-12 UPS1052 MHT → BGR Jun 12, 11:02 UTCJun 12, 11:37 UTC35m
2026-06-12 UPS1052 MHT → BGR Jun 12, 06:15 UTCJun 12, 07:55 UTC1h 40m
2026-06-12 UPS795 HRL → SAT Jun 12, 02:35 UTCJun 12, 05:00 UTC2h 25m
2026-06-12 UPS795 HRL → SAT Jun 12, 02:28 UTCJun 12, 04:50 UTC2h 22m
2026-06-11 UPS796 SDF → MEM Jun 11, 09:05 UTCJun 11, 11:20 UTC2h 15m
2026-06-11 UPS1299 PVD → SDF Jun 11, 01:50 UTCJun 11, 03:40 UTC1h 50m
2026-06-10 UPS5062 SDF → BDL Jun 10, 22:00 UTCJun 10, 22:15 UTC15m
2026-06-10 UPS5062 SDF → BDL Jun 10, 19:05 UTCJun 10, 20:45 UTC1h 40m
2026-06-10 UPS5365 PNS → SDF Jun 10, 13:25 UTCJun 10, 14:45 UTC1h 20m
2026-06-10 UPS5365 PNS → SDF Jun 10, 13:20 UTCJun 10, 14:42 UTC1h 22m
2026-06-10 UPS1364 SDF → PNS Jun 10, 09:20 UTCJun 10, 10:30 UTC1h 10m
2026-06-10 UPS795 HRL → SAT Jun 10, 02:35 UTCJun 10, 04:55 UTC2h 20m
2026-06-09 UPS796 SDF → MEM Jun 9, 08:55 UTCJun 9, 11:05 UTC2h 10m
2026-06-09 UPS1357 HSV → SDF Jun 9, 02:45 UTCJun 9, 03:40 UTC55m
2026-06-08 UPS9771 SDF → DTW Jun 8, 23:35 UTCJun 9, 00:35 UTC1h 0m
2026-06-05 UPS1274 PHL → RDU Jun 5, 07:20 UTCJun 5, 08:10 UTC50m
2026-06-05 UPS1445 CLE → SDF Jun 5, 01:50 UTCJun 5, 02:45 UTC55m
2026-06-04 UPS5442 SDF → CLE Jun 4, 21:35 UTCJun 4, 22:30 UTC55m
2026-06-04 UPS2873 PHX → PHL Jun 4, 12:20 UTCJun 4, 14:45 UTC2h 25m
2026-06-04 UPS2873 PHX → PHL Jun 4, 12:23 UTCJun 4, 14:46 UTC2h 23m
2026-06-04 UPS872 SDF → ABQ Jun 4, 08:00 UTCJun 4, 10:50 UTC2h 50m
2026-06-04 UPS872 SDF → ABQ Jun 4, 07:56 UTCJun 4, 10:45 UTC2h 49m
2026-06-04 UPS3769 DFW → SDF Jun 4, 03:35 UTCJun 4, 05:10 UTC1h 35m
2026-06-02 UPS7885 OMA → ONT Jun 2, 11:00 UTCJun 2, 12:05 UTC1h 5m
2026-06-02 UPS7885 OMA → ONT Jun 2, 10:55 UTCJun 2, 12:03 UTC1h 8m
2026-06-02 UPS674 RFD → MCI Jun 2, 08:35 UTCJun 2, 09:25 UTC50m
2026-06-02 UPS674 RFD → MCI Jun 2, 08:31 UTCJun 2, 09:25 UTC54m
2026-06-02 UPS1085 EWR → RFD Jun 2, 02:15 UTCJun 2, 04:05 UTC1h 50m
2026-06-02 UPS1085 EWR → RFD Jun 2, 02:05 UTCJun 2, 04:09 UTC2h 4m
2026-05-30 UPS7897 IAD → EWR May 30, 01:55 UTCMay 30, 02:45 UTC50m
2026-05-30 UPS7897 IAD → EWR May 30, 01:51 UTCMay 30, 02:33 UTC42m
2026-05-29 UPS1218 RFD → IAD May 29, 08:15 UTCMay 29, 09:40 UTC1h 25m
2026-05-29 UPS783 SAT → RFD May 29, 02:55 UTCMay 29, 05:00 UTC2h 5m
2026-05-28 UPS5758 RFD → SAT May 28, 19:40 UTCMay 28, 22:00 UTC2h 20m
2026-05-28 UPS7891 FAR → SDF May 28, 11:55 UTCMay 28, 12:55 UTC1h 0m
2026-05-28 UPS582 SDF → FAR May 28, 08:50 UTCMay 28, 10:40 UTC1h 50m
2026-05-27 UPS5793 LBB → SDF May 27, 12:40 UTCMay 27, 14:40 UTC2h 0m
2026-05-27 UPS5793 LBB → SDF May 27, 12:21 UTCMay 27, 14:37 UTC2h 16m
2026-05-27 UPS776 DFW → IAH May 27, 08:45 UTCMay 27, 10:50 UTC2h 5m
2026-05-27 UPS776 DFW → IAH May 27, 08:47 UTCMay 27, 10:50 UTC2h 3m
2026-05-23 UPS1357 HSV → SDF May 23, 04:30 UTCMay 23, 05:20 UTC50m
2026-05-23 UPS1357 HSV → SDF May 23, 04:21 UTCMay 23, 05:18 UTC57m
2026-05-23 UPS3358 SDF → HSV May 23, 02:45 UTCMay 23, 03:25 UTC40m
2026-05-22 UPS1347 MIA → SDF May 22, 02:45 UTCMay 22, 04:05 UTC1h 20m
2026-05-22 UPS1347 MIA → SDF May 22, 02:46 UTCMay 22, 04:03 UTC1h 17m
2026-05-22 UPS1347 MIA → SDF May 22, 00:30 UTCMay 22, 01:45 UTC1h 15m

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 N430UP page for operator, model, and routing details .

Mode-S A524EE frequently asked

What is Mode-S code A524EE?
A524EE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N430UP.
Where is Mode-S A524EE registered?
Mode-S code A524EE 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 A524EE broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A524EE, octal 51222356, decimal 10,822,894.
What flights does A524EE operate?
Mode-S A524EE has broadcast 20 distinct callsigns, including UPS5062, UPS1376, UPS1085, UPS795, UPS582.