Apparatus

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sensors Mode-S transponder

A08F94

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N135UP · AIRBUS A-300-600 · operated by UNITED PARCEL SERVICE CO

Hex
A08F94
Octal
50107624
Decimal
10,522,516
Country
US
Tail
N135UP
Type
A306
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
372
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A08F94.

Country allocation

The ICAO 24-bit address A08F94 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
UPS612 - 8 2026-07-17
UPS5555 United Parcel Service 8 2026-06-24
UPS1487 - 8 2026-06-17
UPS754 - 7 2026-07-17
UPS556 - 7 2026-06-24
UPS954 - 6 2026-07-09
UPS897 - 6 2026-07-09
UPS838 United Parcel Service 5 2026-05-01
UPS613 - 5 2026-07-02
UPS603 - 5 2026-06-25
UPS5955 United Parcel Service 5 2026-05-03
UPS5488 - 5 2026-06-16
UPS5481 United Parcel Service 5 2026-07-26
UPS514 - 5 2026-07-07
UPS2894 - 5 2026-07-09
UPS1488 - 5 2026-07-03
UPS1482 United Parcel Service 5 2026-07-24
UPS1078 United Parcel Service 5 2026-06-15
UPS9738 United Parcel Service 4 2026-06-04
UPS907 United Parcel Service 4 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UPS5844 SDF → SLC Jul 26, 20:35 UTCJul 26, 23:00 UTC2h 25m
2026-07-26 UPS5481 DTW → SDF Jul 26, 11:25 UTCJul 26, 12:10 UTC45m
2026-07-24 UPS1482 SDF → DTW Jul 24, 09:20 UTCJul 24, 10:15 UTC55m
2026-07-24 UPS1081 EWR → SDF Jul 24, 03:30 UTCJul 24, 05:00 UTC1h 30m
2026-07-24 UPS2182 PHL → EWR Jul 24, 00:40 UTCJul 24, 01:00 UTC20m
2026-07-23 UPS2182 PHL → EWR Jul 23, 20:55 UTCJul 23, 22:10 UTC1h 15m
2026-07-23 UPS2079 EWR → SDF Jul 23, 13:20 UTCJul 23, 15:05 UTC1h 45m
2026-07-23 UPS1076 RFD → EWR Jul 23, 08:10 UTCJul 23, 09:40 UTC1h 30m
2026-07-23 UPS1125 JFK → RFD Jul 23, 03:00 UTCJul 23, 05:05 UTC2h 5m
2026-07-22 UPS1125 JFK → RFD Jul 22, 02:55 UTCJul 22, 04:55 UTC2h 0m
2026-07-21 UPS1126 RFD → JFK Jul 21, 08:50 UTCJul 21, 10:25 UTC1h 35m
2026-07-21 UPS753 DFW → RFD Jul 21, 02:10 UTCJul 21, 04:20 UTC2h 10m
2026-07-17 UPS754 - Jul 17, 08:45 UTCJul 17, 10:25 UTC1h 40m
2026-07-17 UPS612 - Jul 17, 06:00 UTCJul 17, 06:50 UTC50m
2026-07-17 UPS663 - Jul 17, 01:45 UTCJul 17, 02:59 UTC1h 15m
2026-07-16 UPS5674 - Jul 16, 22:35 UTCJul 16, 22:59 UTC25m
2026-07-16 UPS5674 - Jul 16, 20:35 UTCJul 16, 21:19 UTC45m
2026-07-16 UPS2051 - Jul 16, 12:55 UTCJul 16, 14:40 UTC1h 45m
2026-07-16 UPS1070 - Jul 16, 07:45 UTCJul 16, 09:15 UTC1h 30m
2026-07-16 UPS1385 - Jul 16, 03:05 UTCJul 16, 03:55 UTC50m
2026-07-15 UPS5384 - Jul 15, 21:15 UTCJul 15, 22:05 UTC50m
2026-07-15 UPS5661 - Jul 15, 12:15 UTCJul 15, 13:30 UTC1h 15m
2026-07-15 UPS668 - Jul 15, 08:55 UTCJul 15, 09:55 UTC1h 0m
2026-07-15 UPS1305 ATL → SDF Jul 15, 02:00 UTCJul 15, 02:50 UTC50m
2026-07-14 UPS9862 - Jul 14, 12:30 UTCJul 14, 13:00 UTC30m
2026-07-14 UPS1296 - Jul 14, 10:05 UTCJul 14, 10:55 UTC50m
2026-07-14 UPS1296 SDF → GSP Jul 14, 10:04 UTCJul 14, 10:59 UTC55m
2026-07-14 UPS1013 BOS → SDF Jul 14, 02:11 UTCJul 14, 04:00 UTC1h 49m
2026-07-14 UPS1013 BOS → SDF Jul 14, 02:15 UTCJul 14, 04:00 UTC1h 45m
2026-07-12 UPS1022 - Jul 12, 21:00 UTCJul 12, 23:00 UTC2h 0m
2026-07-11 UPS5683 - Jul 11, 12:55 UTCJul 11, 14:20 UTC1h 25m
2026-07-11 UPS684 - Jul 11, 09:30 UTCJul 11, 10:45 UTC1h 15m
2026-07-11 UPS701 - Jul 11, 03:25 UTCJul 11, 04:20 UTC55m
2026-07-11 UPS701 - Jul 11, 01:25 UTCJul 11, 02:10 UTC45m
2026-07-10 UPS5702 - Jul 10, 21:10 UTCJul 10, 22:40 UTC1h 30m
2026-07-10 UPS5702 SDF → MSY Jul 10, 21:07 UTCJul 10, 22:40 UTC1h 33m
2026-07-10 UPS5787 SAT → SDF Jul 10, 12:00 UTCJul 10, 14:05 UTC2h 5m
2026-07-10 UPS5787 SAT → SDF Jul 10, 12:01 UTCJul 10, 14:01 UTC2h 0m
2026-07-10 UPS9860 DFW → SAT Jul 10, 09:42 UTCJul 10, 10:16 UTC34m
2026-07-10 UPS9860 - Jul 10, 09:40 UTCJul 10, 10:20 UTC40m
2026-07-10 UPS750 - Jul 10, 06:20 UTCJul 10, 08:10 UTC1h 50m
2026-07-10 UPS750 SDF → DFW Jul 10, 06:18 UTCJul 10, 08:13 UTC1h 55m
2026-07-10 UPS541 - Jul 10, 02:35 UTCJul 10, 03:40 UTC1h 5m
2026-07-10 UPS541 MKE → SDF Jul 10, 02:23 UTCJul 10, 03:27 UTC1h 4m
2026-07-09 UPS5542 - Jul 9, 21:15 UTCJul 9, 22:15 UTC1h 0m
2026-07-09 UPS2895 - Jul 9, 13:35 UTCJul 9, 16:55 UTC3h 20m
2026-07-09 UPS2895 RNO → SDF Jul 9, 13:35 UTCJul 9, 16:56 UTC3h 21m
2026-07-09 UPS954 - Jul 9, 11:50 UTCJul 9, 12:05 UTC15m
2026-07-09 UPS954 MHR → RNO Jul 9, 11:53 UTCJul 9, 12:15 UTC22m
2026-07-09 UPS954 - Jul 9, 09:50 UTCJul 9, 10:45 UTC55m

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 N135UP page for operator, model, and routing details .

Mode-S A08F94 frequently asked

What is Mode-S code A08F94?
A08F94 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N135UP.
Where is Mode-S A08F94 registered?
Mode-S code A08F94 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 A08F94 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A08F94, octal 50107624, decimal 10,522,516.
What flights does A08F94 operate?
Mode-S A08F94 has broadcast 20 distinct callsigns, including UPS612, UPS5555, UPS1487, UPS754, UPS556.