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 Jul 26, 21:30 UTC
Flights observed
405
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

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 - 9 2026-07-17
UPS711 United Parcel Service 7 2026-07-22
UPS1216 - 7 2026-07-09
UPS1214 - 7 2026-07-11
UPS1081 United Parcel Service 7 2026-07-18
UPS994 United Parcel Service 6 2026-04-24
UPS7930 - 6 2026-06-26
UPS5488 United Parcel Service 6 2026-07-26
UPS5274 - 6 2026-07-05
UPS2051 United Parcel Service 6 2026-07-22
UPS7929 United Parcel Service 5 2026-06-26
UPS712 United Parcel Service 5 2026-07-21
UPS555 - 5 2026-07-02
UPS340 United Parcel Service 5 2026-06-06
UPS2651 - 5 2026-07-02
UPS1487 - 5 2026-07-10
UPS1478 United Parcel Service 5 2026-04-21
UPS954 - 4 2026-06-11
UPS872 - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UPS5488 SDF → DTW Jul 26, 21:10 UTCJul 26, 21:30 UTC20m
2026-07-26 UPS5605 ORD → SDF Jul 26, 14:05 UTCJul 26, 14:55 UTC50m
2026-07-25 UPS5606 DFW → ORD Jul 25, 21:30 UTCJul 25, 22:25 UTC55m
2026-07-25 UPS5606 DFW → ORD Jul 25, 21:28 UTCJul 25, 22:31 UTC1h 3m
2026-07-25 UPS9603 PIE → RFD Jul 25, 13:05 UTCJul 25, 14:15 UTC1h 10m
2026-07-25 UPS9603 PIE → RFD Jul 25, 12:58 UTCJul 25, 14:11 UTC1h 13m
2026-07-25 UPS1276 SDF → RDU Jul 25, 08:55 UTCJul 25, 09:55 UTC1h 0m
2026-07-25 UPS605 ORD → SDF Jul 25, 04:20 UTCJul 25, 05:10 UTC50m
2026-07-24 UPS9744 SDF → RFD Jul 24, 09:35 UTCJul 24, 11:00 UTC1h 25m
2026-07-24 UPS1144 SDF → BUF Jul 24, 07:35 UTCJul 24, 08:20 UTC45m
2026-07-24 UPS1283 CLT → PHL Jul 24, 02:05 UTCJul 24, 03:10 UTC1h 5m
2026-07-23 UPS2274 ONT → RDU Jul 23, 20:45 UTCJul 23, 22:15 UTC1h 30m
2026-07-23 UPS2627 BUR → RFD Jul 23, 14:20 UTCJul 23, 17:35 UTC3h 15m
2026-07-23 UPS914 SDF → BUR Jul 23, 07:50 UTCJul 23, 11:30 UTC3h 40m
2026-07-23 UPS661 MCI → SDF Jul 23, 02:30 UTCJul 23, 03:40 UTC1h 10m
2026-07-22 UPS5674 RFD → MCI Jul 22, 22:15 UTCJul 22, 22:45 UTC30m
2026-07-22 UPS5674 RFD → MCI Jul 22, 20:15 UTCJul 22, 21:05 UTC50m
2026-07-22 UPS2051 MHT → SDF Jul 22, 13:05 UTCJul 22, 15:00 UTC1h 55m
2026-07-22 UPS711 SHV → SDF Jul 22, 03:35 UTCJul 22, 04:35 UTC1h 0m
2026-07-22 UPS711 SHV → SDF Jul 22, 01:55 UTCJul 22, 02:15 UTC20m
2026-07-21 UPS712 SDF → LIT Jul 21, 10:40 UTCJul 21, 11:10 UTC30m
2026-07-21 UPS712 SDF → LIT Jul 21, 08:45 UTCJul 21, 09:35 UTC50m
2026-07-21 UPS491 YYC → SDF Jul 21, 03:05 UTCJul 21, 04:35 UTC1h 30m
2026-07-20 UPS491 YYC → SDF Jul 20, 23:40 UTCJul 21, 01:30 UTC1h 50m
2026-07-18 UPS492 FSD → YYC Jul 18, 12:35 UTCJul 18, 14:40 UTC2h 5m
2026-07-18 UPS492 - Jul 18, 10:05 UTCJul 18, 11:35 UTC1h 30m
2026-07-18 UPS1081 EWR → SDF Jul 18, 03:25 UTCJul 18, 05:00 UTC1h 35m
2026-07-17 UPS1070 - Jul 17, 07:40 UTCJul 17, 09:10 UTC1h 30m
2026-07-17 UPS603 ORD → SDF Jul 17, 03:10 UTCJul 17, 03:59 UTC50m
2026-07-16 UPS602 - Jul 16, 07:45 UTCJul 16, 08:35 UTC50m
2026-07-16 UPS1481 DTW → SDF Jul 16, 02:30 UTCJul 16, 03:20 UTC50m
2026-07-15 UPS5488 - Jul 15, 21:30 UTCJul 15, 22:20 UTC50m
2026-07-15 UPS5555 - Jul 15, 14:15 UTCJul 15, 15:15 UTC1h 0m
2026-07-15 UPS618 - Jul 15, 09:25 UTCJul 15, 10:15 UTC50m
2026-07-15 UPS617 - Jul 15, 02:45 UTCJul 15, 03:45 UTC1h 0m
2026-07-14 UPS2627 - Jul 14, 21:00 UTCJul 15, 00:30 UTC3h 29m
2026-07-14 UPS2627 BUR → RFD Jul 14, 21:04 UTCJul 15, 00:23 UTC3h 19m
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

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 Jul 26, 21:30 UTC.
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, UPS711, UPS1216, UPS1214.