Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A76683

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N576UP · BOEING 747-400 · operated by UNITED PARCEL SERVICE CO

Hex
A76683
Octal
51663203
Decimal
10,970,755
Country
US
Tail
N576UP
Type
B744
No current signal · last broadcast Jul 24, 11:55 UTC
Flights observed
232
Distinct callsigns
20
Country
US
Last broadcast
Jul 24, 11:55 UTC

Last known position

Most recent position reported by Mode-S A76683.

Country allocation

The ICAO 24-bit address A76683 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
UPS340 United Parcel Service 13 2026-07-24
UPS62 United Parcel Service 9 2026-06-06
UPS2915 - 8 2026-07-07
UPS197 - 8 2026-06-17
UPS204 United Parcel Service 7 2026-07-23
UPS99 United Parcel Service 6 2026-06-14
UPS81 - 6 2026-07-07
UPS59 United Parcel Service 6 2026-05-24
UPS224 - 6 2026-06-29
UPS216 - 6 2026-07-09
UPS72 United Parcel Service 5 2026-05-16
UPS70 - 5 2026-06-19
UPS63 United Parcel Service 5 2026-06-04
UPS327 United Parcel Service 5 2026-05-13
UPS2998 - 5 2026-06-16
UPS223 - 5 2026-06-29
UPS15 - 5 2026-07-14
UPS71 - 4 2026-07-16
UPS69 United Parcel Service 4 2026-06-06
UPS5966 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 UPS340 SDF → SJU Jul 24, 11:30 UTCJul 24, 11:55 UTC25m
2026-07-24 UPS340 SDF → SJU Jul 24, 08:30 UTCJul 24, 09:35 UTC1h 5m
2026-07-23 UPS2191 PHL → SDF Jul 23, 13:00 UTCJul 23, 14:25 UTC1h 25m
2026-07-23 UPS204 CGN → PHL Jul 23, 02:50 UTCJul 23, 10:20 UTC7h 30m
2026-07-22 UPS9 SZX → CGN Jul 22, 10:20 UTCJul 22, 18:15 UTC7h 55m
2026-07-22 UPS9 SZX → CGN Jul 22, 02:55 UTCJul 22, 03:15 UTC20m
2026-07-22 UPS9 SZX → CGN Jul 22, 00:10 UTCJul 22, 01:35 UTC1h 25m
2026-07-21 UPS8 - Jul 21, 17:10 UTCJul 21, 17:25 UTC15m
2026-07-21 UPS8 - Jul 21, 06:25 UTCJul 21, 08:50 UTC2h 25m
2026-07-20 UPS213 - Jul 20, 10:00 UTCJul 20, 18:00 UTC8h 0m
2026-07-20 UPS213 SDF → CGN Jul 20, 10:04 UTCJul 20, 17:51 UTC7h 47m
2026-07-18 UPS2907 - Jul 18, 11:50 UTCJul 18, 15:25 UTC3h 35m
2026-07-17 UPS2904 BWI → PHL Jul 17, 20:44 UTCJul 18, 00:10 UTC3h 25m
2026-07-17 UPS5915 - Jul 17, 14:10 UTCJul 17, 17:44 UTC3h 35m
2026-07-17 UPS5967 - Jul 17, 07:14 UTCJul 17, 12:04 UTC4h 50m
2026-07-17 UPS5966 - Jul 17, 04:54 UTCJul 17, 05:10 UTC15m
2026-07-16 UPS5966 - Jul 16, 20:45 UTCJul 17, 00:50 UTC4h 5m
2026-07-16 UPS71 ANC → SDF Jul 16, 12:09 UTCJul 16, 17:40 UTC5h 30m
2026-07-16 UPS71 - Jul 16, 00:05 UTCJul 16, 10:04 UTC10h 0m
2026-07-15 UPS14 - Jul 15, 15:25 UTCJul 15, 15:45 UTC20m
2026-07-15 UPS14 - Jul 15, 04:10 UTCJul 15, 07:55 UTC3h 45m
2026-07-14 UPS15 - Jul 14, 08:40 UTCJul 14, 16:55 UTC8h 15m
2026-07-14 UPS15 - Jul 14, 00:50 UTCJul 14, 03:25 UTC2h 35m
2026-07-13 UPS15 - Jul 13, 22:50 UTCJul 13, 23:00 UTC10m
2026-07-13 UPS24 - Jul 13, 05:55 UTCJul 13, 09:45 UTC3h 50m
2026-07-12 UPS25 - Jul 12, 06:20 UTCJul 12, 10:55 UTC4h 35m
2026-07-11 UPS25 - Jul 11, 22:20 UTCJul 11, 22:30 UTC10m
2026-07-10 UPS76 - Jul 10, 21:00 UTCJul 11, 04:40 UTC7h 40m
2026-07-10 UPS76 - Jul 10, 09:25 UTCJul 10, 12:45 UTC3h 20m
2026-07-10 UPS76 SDF → ANC Jul 10, 09:21 UTCJul 10, 15:35 UTC6h 14m
2026-07-09 UPS216 - Jul 9, 17:30 UTCJul 10, 02:10 UTC8h 40m
2026-07-07 UPS217 - Jul 7, 20:15 UTCJul 8, 04:00 UTC7h 45m
2026-07-07 UPS217 SDF → CGN Jul 7, 20:16 UTCJul 8, 03:58 UTC7h 42m
2026-07-07 UPS2915 - Jul 7, 13:45 UTCJul 7, 17:10 UTC3h 25m
2026-07-07 UPS2915 ONT → SDF Jul 7, 13:41 UTCJul 7, 17:06 UTC3h 25m
2026-07-07 UPS81 ANC → ONT Jul 7, 00:25 UTCJul 7, 05:00 UTC4h 35m
2026-07-06 UPS81 - Jul 6, 05:10 UTCJul 6, 21:50 UTC16h 40m
2026-07-05 UPS81 - Jul 5, 23:05 UTCJul 6, 21:50 UTC22h 45m
2026-07-05 UPS82 - Jul 5, 14:00 UTCJul 5, 20:05 UTC6h 5m
2026-06-29 UPS224 CGN → SDF Jun 29, 17:30 UTCJun 30, 01:55 UTC8h 26m
2026-06-29 UPS223 SDF → CGN Jun 29, 07:09 UTCJun 29, 14:56 UTC7h 47m
2026-06-29 UPS223 - Jun 29, 07:15 UTCJun 29, 14:54 UTC7h 40m
2026-06-28 UPS210 CGN → SDF Jun 28, 06:49 UTCJun 28, 14:59 UTC8h 10m
2026-06-28 UPS210 CGN → SDF Jun 28, 06:42 UTCJun 28, 14:52 UTC8h 10m
2026-06-27 UPS209 - Jun 27, 20:19 UTCJun 28, 03:50 UTC7h 30m
2026-06-27 UPS209 SDF → CGN Jun 27, 20:21 UTCJun 28, 03:45 UTC7h 24m
2026-06-27 UPS329 - Jun 27, 01:04 UTCJun 27, 04:44 UTC3h 40m
2026-06-26 UPS340 SDF → SJU Jun 26, 11:00 UTCJun 26, 14:35 UTC3h 35m
2026-06-25 UPS224 - Jun 25, 17:34 UTCJun 26, 02:09 UTC8h 35m
2026-06-25 UPS15 - Jun 25, 06:05 UTCJun 25, 10:35 UTC4h 30m

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 N576UP page for operator, model, and routing details .

Mode-S A76683 frequently asked

What is Mode-S code A76683?
A76683 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N576UP.
Where is Mode-S A76683 registered?
Mode-S code A76683 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 A76683 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 11:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A76683, octal 51663203, decimal 10,970,755.
What flights does A76683 operate?
Mode-S A76683 has broadcast 20 distinct callsigns, including UPS340, UPS62, UPS2915, UPS197, UPS204.