Apparatus

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sensors Mode-S transponder

A0CFB6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N151UP · AIRBUS A-300-600 · operated by UNITED PARCEL SERVICE CO

Hex
A0CFB6
Octal
50147666
Decimal
10,538,934
Country
US
Tail
N151UP
Type
A306
No current signal · last broadcast 8h ago
Flights observed
368
Distinct callsigns
20
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A0CFB6.

Country allocation

The ICAO 24-bit address A0CFB6 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
UPS2215 - 9 2026-07-09
UPS1070 - 8 2026-06-30
UPS1216 - 7 2026-07-09
UPS1214 - 7 2026-07-11
UPS994 United Parcel Service 6 2026-04-24
UPS7930 - 6 2026-06-26
UPS5274 - 6 2026-07-05
UPS1081 - 6 2026-07-14
UPS7929 United Parcel Service 5 2026-06-26
UPS711 - 5 2026-06-18
UPS555 - 5 2026-07-02
UPS340 United Parcel Service 5 2026-06-06
UPS2651 - 5 2026-07-02
UPS2051 - 5 2026-06-30
UPS1487 - 5 2026-07-10
UPS1478 United Parcel Service 5 2026-04-21
UPS954 - 4 2026-06-11
UPS872 - 4 2026-06-18
UPS856 - 4 2026-07-02
UPS855 - 4 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UPS914 - Jul 14, 07:55 UTCJul 14, 11:20 UTC3h 25m
2026-07-14 UPS914 SDF → BUR Jul 14, 07:48 UTCJul 14, 11:23 UTC3h 35m
2026-07-14 UPS1081 - Jul 14, 03:25 UTCJul 14, 04:50 UTC1h 25m
2026-07-14 UPS1081 EWR → SDF Jul 14, 03:26 UTCJul 14, 04:48 UTC1h 22m
2026-07-12 UPS1078 - Jul 12, 21:00 UTCJul 12, 22:45 UTC1h 45m
2026-07-12 UPS5277 - Jul 12, 13:55 UTCJul 12, 14:50 UTC55m
2026-07-11 UPS5278 - Jul 11, 23:25 UTCJul 11, 23:50 UTC25m
2026-07-11 UPS5278 - Jul 11, 21:10 UTCJul 11, 22:15 UTC1h 5m
2026-07-11 UPS5229 - Jul 11, 13:25 UTCJul 11, 14:40 UTC1h 15m
2026-07-11 UPS1214 SDF → BWI Jul 11, 10:55 UTCJul 11, 12:05 UTC1h 10m
2026-07-11 UPS1111 - Jul 11, 03:15 UTCJul 11, 04:55 UTC1h 40m
2026-07-10 UPS1126 - Jul 10, 08:15 UTCJul 10, 09:50 UTC1h 35m
2026-07-10 UPS1126 RFD → JFK Jul 10, 08:17 UTCJul 10, 09:52 UTC1h 35m
2026-07-10 UPS1487 - Jul 10, 02:20 UTCJul 10, 03:05 UTC45m
2026-07-09 UPS5488 - Jul 9, 21:15 UTCJul 9, 22:10 UTC55m
2026-07-09 UPS2215 - Jul 9, 11:30 UTCJul 9, 12:50 UTC1h 20m
2026-07-09 UPS1216 - Jul 9, 08:15 UTCJul 9, 09:45 UTC1h 30m
2026-07-09 UPS1216 RFD → BWI Jul 9, 08:12 UTCJul 9, 09:44 UTC1h 32m
2026-07-09 UPS1487 - Jul 9, 02:25 UTCJul 9, 03:10 UTC45m
2026-07-07 UPS1482 - Jul 7, 09:10 UTCJul 7, 10:00 UTC50m
2026-07-07 UPS1482 SDF → DTW Jul 7, 08:55 UTCJul 7, 09:52 UTC57m
2026-07-07 UPS1271 - Jul 7, 03:10 UTCJul 7, 04:05 UTC55m
2026-07-05 UPS5274 - Jul 5, 21:20 UTCJul 5, 22:15 UTC55m
2026-07-04 UPS513 - Jul 4, 03:05 UTCJul 4, 04:05 UTC1h 0m
2026-07-04 UPS513 CID → SDF Jul 4, 03:04 UTCJul 4, 04:02 UTC58m
2026-07-04 UPS513 - Jul 4, 01:40 UTCJul 4, 02:00 UTC20m
2026-07-03 UPS514 - Jul 3, 10:50 UTCJul 3, 11:15 UTC25m
2026-07-03 UPS514 CID → DSM Jul 3, 10:46 UTCJul 3, 11:09 UTC23m
2026-07-03 UPS514 - Jul 3, 08:55 UTCJul 3, 09:55 UTC1h 0m
2026-07-03 UPS855 PHX → SDF Jul 3, 01:25 UTCJul 3, 04:30 UTC3h 5m
2026-07-03 UPS855 PHX → SDF Jul 3, 01:28 UTCJul 3, 04:22 UTC2h 54m
2026-07-02 UPS2846 - Jul 2, 20:35 UTCJul 2, 23:35 UTC3h 0m
2026-07-02 UPS2651 - Jul 2, 12:50 UTCJul 2, 15:20 UTC2h 30m
2026-07-02 UPS2651 PHX → RFD Jul 2, 12:50 UTCJul 2, 15:24 UTC2h 34m
2026-07-02 UPS856 - Jul 2, 07:40 UTCJul 2, 10:40 UTC3h 0m
2026-07-02 UPS856 RFD → PHX Jul 2, 07:39 UTCJul 2, 10:40 UTC3h 1m
2026-07-02 UPS555 - Jul 2, 03:00 UTCJul 2, 04:00 UTC1h 0m
2026-07-02 UPS555 MSP → RFD Jul 2, 02:57 UTCJul 2, 04:19 UTC1h 22m
2026-07-01 UPS5556 - Jul 1, 20:50 UTCJul 1, 21:45 UTC55m
2026-07-01 UPS5556 RFD → MSP Jul 1, 20:52 UTCJul 1, 21:49 UTC57m
2026-07-01 UPS5556 - Jul 1, 18:15 UTCJul 1, 19:05 UTC50m
2026-07-01 UPS5277 - Jul 1, 12:40 UTCJul 1, 13:30 UTC50m
2026-07-01 UPS5277 GSO → SDF Jul 1, 12:38 UTCJul 1, 13:29 UTC51m
2026-07-01 UPS9862 - Jul 1, 11:00 UTCJul 1, 11:30 UTC30m
2026-07-01 UPS9862 GSP → GSO Jul 1, 10:54 UTCJul 1, 11:26 UTC32m
2026-07-01 UPS1296 - Jul 1, 08:55 UTCJul 1, 09:45 UTC50m
2026-07-01 UPS1296 SDF → GSP Jul 1, 08:48 UTCJul 1, 09:37 UTC49m
2026-07-01 UPS855 PHX → SDF Jul 1, 01:35 UTCJul 1, 04:30 UTC2h 55m
2026-07-01 UPS855 PHX → SDF Jul 1, 01:34 UTCJul 1, 04:30 UTC2h 56m
2026-06-30 UPS2846 - Jun 30, 20:55 UTCJul 1, 00:00 UTC3h 5m

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 N151UP page for operator, model, and routing details .

Mode-S A0CFB6 frequently asked

What is Mode-S code A0CFB6?
A0CFB6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N151UP.
Where is Mode-S A0CFB6 registered?
Mode-S code A0CFB6 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 A0CFB6 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0CFB6, octal 50147666, decimal 10,538,934.
What flights does A0CFB6 operate?
Mode-S A0CFB6 has broadcast 20 distinct callsigns, including UPS2215, UPS1070, UPS1216, UPS1214, UPS994.