Apparatus

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sensors Mode-S transponder

A37020

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N320UP · BOEING 767-300 · operated by UNITED PARCEL SERVICE CO

Hex
A37020
Octal
50670040
Decimal
10,711,072
Country
US
Tail
N320UP
Type
B763
No current signal · last broadcast Jul 26, 04:50 UTC
Flights observed
316
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 04:50 UTC

Last known position

Most recent position reported by Mode-S A37020.

Country allocation

The ICAO 24-bit address A37020 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
UPS104 United Parcel Service 23 2026-07-26
UPS105 United Parcel Service 13 2026-05-18
UPS354 United Parcel Service 8 2026-05-29
UPS355 United Parcel Service 7 2026-05-29
UPS2986 United Parcel Service 7 2026-07-23
UPS920 - 5 2026-06-18
UPS5971 - 5 2026-07-05
UPS5193 - 5 2026-07-21
UPS2462 United Parcel Service 5 2026-06-03
UPS986 - 4 2026-06-28
UPS981 - 4 2026-07-10
UPS9706 - 4 2026-07-07
UPS904 - 4 2026-07-01
UPS5972 - 4 2026-07-03
UPS2905 - 4 2026-07-01
UPS2801 - 4 2026-07-14
UPS167 United Parcel Service 4 2026-04-15
UPS166 United Parcel Service 4 2026-04-15
UPS842 United Parcel Service 3 2026-07-23
UPS801 - 3 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UPS104 RFD → KIX Jul 26, 03:55 UTCJul 26, 04:50 UTC55m
2026-07-25 UPS104 RFD → KIX Jul 25, 18:10 UTCJul 26, 01:43 UTC7h 33m
2026-07-25 UPS104 RFD → KIX Jul 25, 18:00 UTCJul 26, 01:50 UTC7h 50m
2026-07-25 UPS104 RFD → KIX Jul 25, 09:15 UTCJul 25, 15:55 UTC6h 40m
2026-07-25 UPS104 RFD → KIX Jul 25, 09:13 UTCJul 25, 15:50 UTC6h 37m
2026-07-25 UPS1013 BOS → SDF Jul 25, 02:25 UTCJul 25, 04:25 UTC2h 0m
2026-07-24 UPS5014 SDF → BOS Jul 24, 20:30 UTCJul 24, 22:30 UTC2h 0m
2026-07-24 UPS5337 - Jul 24, 13:45 UTCJul 24, 15:00 UTC1h 15m
2026-07-24 UPS5337 - Jul 24, 11:35 UTCJul 24, 12:55 UTC1h 20m
2026-07-24 UPS1340 PHL → PBI Jul 24, 08:50 UTCJul 24, 09:30 UTC40m
2026-07-24 UPS1340 PHL → PBI Jul 24, 06:15 UTCJul 24, 07:50 UTC1h 35m
2026-07-24 UPS1271 RSW → HSV Jul 24, 02:55 UTCJul 24, 03:45 UTC50m
2026-07-23 UPS5272 GSO → CLT Jul 23, 19:00 UTCJul 23, 23:05 UTC4h 5m
2026-07-23 UPS2841 SLC → ONT Jul 23, 13:10 UTCJul 23, 14:30 UTC1h 20m
2026-07-23 UPS842 SDF → SLC Jul 23, 09:55 UTCJul 23, 11:10 UTC1h 15m
2026-07-23 UPS983 BFI → ONT Jul 23, 02:50 UTCJul 23, 05:00 UTC2h 10m
2026-07-23 UPS2986 SDF → BFI Jul 23, 00:20 UTCJul 23, 00:50 UTC30m
2026-07-22 UPS2986 SDF → BFI Jul 22, 19:15 UTCJul 22, 22:55 UTC3h 40m
2026-07-22 UPS2029 - Jul 22, 12:05 UTCJul 22, 14:10 UTC2h 5m
2026-07-22 UPS945 OAK → SDF Jul 22, 02:15 UTCJul 22, 05:25 UTC3h 10m
2026-07-21 UPS2944 - Jul 21, 17:40 UTCJul 21, 21:45 UTC4h 5m
2026-07-21 UPS5193 - Jul 21, 13:05 UTCJul 21, 14:35 UTC1h 30m
2026-07-21 UPS1194 - Jul 21, 08:25 UTCJul 21, 09:45 UTC1h 20m
2026-07-21 UPS919 ONT → SDF Jul 21, 02:35 UTCJul 21, 06:10 UTC3h 35m
2026-07-17 UPS916 - Jul 17, 06:45 UTCJul 17, 10:10 UTC3h 25m
2026-07-17 UPS767 DFW → SDF Jul 17, 02:39 UTCJul 17, 04:25 UTC1h 45m
2026-07-16 UPS5768 - Jul 16, 21:15 UTCJul 16, 23:15 UTC2h 0m
2026-07-16 UPS5739 - Jul 16, 12:09 UTCJul 16, 13:34 UTC1h 25m
2026-07-16 UPS734 - Jul 16, 09:20 UTCJul 16, 10:40 UTC1h 20m
2026-07-15 UPS5909 - Jul 15, 12:35 UTCJul 15, 16:20 UTC3h 45m
2026-07-15 UPS7893 ANC → ONT Jul 15, 05:05 UTCJul 15, 09:45 UTC4h 40m
2026-07-14 UPS5074 SDF → ANC Jul 14, 19:59 UTCJul 15, 02:20 UTC6h 21m
2026-07-14 UPS5074 - Jul 14, 20:00 UTCJul 15, 02:20 UTC6h 19m
2026-07-14 UPS2801 DEN → SDF Jul 14, 13:30 UTCJul 14, 15:50 UTC2h 20m
2026-07-14 UPS2801 DEN → SDF Jul 14, 13:22 UTCJul 14, 15:51 UTC2h 29m
2026-07-14 UPS810 - Jul 14, 07:55 UTCJul 14, 09:40 UTC1h 45m
2026-07-14 UPS810 RFD → DEN Jul 14, 07:59 UTCJul 14, 09:38 UTC1h 39m
2026-07-14 UPS775 - Jul 14, 03:10 UTCJul 14, 05:05 UTC1h 55m
2026-07-14 UPS775 IAH → RFD Jul 14, 02:58 UTCJul 14, 05:07 UTC2h 9m
2026-07-12 UPS5778 - Jul 12, 19:10 UTCJul 12, 21:05 UTC1h 55m
2026-07-12 UPS5739 OKC → SDF Jul 12, 13:01 UTCJul 12, 14:30 UTC1h 30m
2026-07-11 UPS734 - Jul 11, 12:40 UTCJul 11, 13:05 UTC25m
2026-07-11 UPS734 - Jul 11, 10:30 UTCJul 11, 11:50 UTC1h 20m
2026-07-11 UPS801 - Jul 11, 03:50 UTCJul 11, 05:45 UTC1h 55m
2026-07-10 UPS5808 - Jul 10, 21:05 UTCJul 10, 23:35 UTC2h 30m
2026-07-10 UPS5771 - Jul 10, 12:50 UTCJul 10, 14:35 UTC1h 45m
2026-07-10 UPS5771 IAH → SDF Jul 10, 12:53 UTCJul 10, 14:32 UTC1h 39m
2026-07-10 UPS774 - Jul 10, 09:20 UTCJul 10, 11:10 UTC1h 50m
2026-07-10 UPS774 SDF → IAH Jul 10, 09:16 UTCJul 10, 11:24 UTC2h 8m
2026-07-10 UPS981 BFI → SDF Jul 10, 02:30 UTCJul 10, 06:10 UTC3h 40m

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 N320UP page for operator, model, and routing details .

Mode-S A37020 frequently asked

What is Mode-S code A37020?
A37020 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N320UP.
Where is Mode-S A37020 registered?
Mode-S code A37020 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 A37020 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 04:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A37020, octal 50670040, decimal 10,711,072.
What flights does A37020 operate?
Mode-S A37020 has broadcast 20 distinct callsigns, including UPS104, UPS105, UPS354, UPS355, UPS2986.