Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACB9EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N919UP · operated by BOEING CO

Hex
ACB9EA
Octal
53134752
Decimal
11,319,786
Country
US
Tail
N919UP
Type
B763
Broadcasting now · callsign UPS5929 · 39,000 ft
Flights observed
66
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Current position

ACB9EA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ACB9EA 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
BOE327 - 5 2026-06-28
UPS5839 - 3 2026-07-12
UPS5340 United Parcel Service 3 2026-07-25
UPS973 - 2 2026-07-14
UPS9500 - 2 2026-06-30
UPS5844 - 2 2026-07-10
UPS5567 United Parcel Service 2 2026-07-25
UPS5364 - 2 2026-07-16
UPS5337 - 2 2026-07-17
UPS5303 United Parcel Service 2 2026-07-21
UPS5151 - 2 2026-07-14
UPS2902 - 2 2026-07-14
UPS2620 United Parcel Service 2 2026-07-20
UPS1340 - 2 2026-07-17
UPS1304 - 2 2026-07-23
UPS1303 United Parcel Service 2 2026-07-24
UPS1152 - 2 2026-07-14
UPS976 - 1 2026-07-12
UPS956 - 1 2026-07-16
UPS9501 - 1 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UPS5944 SDF → OAK Jul 26, 19:15 UTCJul 26, 22:30 UTC3h 15m
2026-07-26 UPS5321 JAX → SDF Jul 26, 12:30 UTCJul 26, 13:55 UTC1h 25m
2026-07-25 UPS5340 SDF → JAX Jul 25, 23:50 UTCJul 26, 00:00 UTC10m
2026-07-25 UPS5340 SDF → JAX Jul 25, 22:20 UTCJul 26, 00:00 UTC1h 40m
2026-07-25 UPS5340 SDF → JAX Jul 25, 22:17 UTCJul 25, 23:35 UTC1h 18m
2026-07-25 UPS5567 MSP → SDF Jul 25, 12:55 UTCJul 25, 14:05 UTC1h 10m
2026-07-25 UPS5567 MSP → SDF Jul 25, 12:50 UTCJul 25, 14:11 UTC1h 21m
2026-07-25 UPS560 SDF → MSP Jul 25, 09:55 UTCJul 25, 11:30 UTC1h 35m
2026-07-24 UPS5345 TPA → SDF Jul 24, 11:20 UTCJul 24, 12:50 UTC1h 30m
2026-07-24 UPS1338 SDF → PIE Jul 24, 08:35 UTCJul 24, 10:05 UTC1h 30m
2026-07-24 UPS1303 ATL → SDF Jul 24, 03:35 UTCJul 24, 04:30 UTC55m
2026-07-24 UPS1303 ATL → SDF Jul 24, 03:20 UTCJul 24, 03:25 UTC5m
2026-07-23 UPS1304 - Jul 23, 08:25 UTCJul 23, 09:10 UTC45m
2026-07-23 UPS559 MSP → SDF Jul 23, 02:45 UTCJul 23, 04:00 UTC1h 15m
2026-07-22 UPS2568 SDF → MSP Jul 22, 21:35 UTCJul 22, 23:05 UTC1h 30m
2026-07-22 UPS5775 DFW → SDF Jul 22, 14:40 UTCJul 22, 16:20 UTC1h 40m
2026-07-21 UPS5303 ATL → SDF Jul 21, 11:20 UTCJul 21, 12:10 UTC50m
2026-07-21 UPS1302 - Jul 21, 07:45 UTCJul 21, 08:35 UTC50m
2026-07-21 UPS617 - Jul 21, 02:00 UTCJul 21, 02:55 UTC55m
2026-07-20 UPS2620 SDF → RFD Jul 20, 16:20 UTCJul 20, 16:30 UTC10m
2026-07-20 UPS2620 SDF → RFD Jul 20, 16:19 UTCJul 20, 17:15 UTC56m
2026-07-19 UPS5785 DFW → SDF Jul 19, 13:05 UTCJul 19, 14:45 UTC1h 40m
2026-07-18 UPS5762 SDF → DFW Jul 18, 20:50 UTCJul 18, 22:30 UTC1h 40m
2026-07-18 UPS5303 ATL → SDF Jul 18, 12:05 UTCJul 18, 12:55 UTC50m
2026-07-18 UPS1304 SDF → ATL Jul 18, 09:15 UTCJul 18, 10:05 UTC50m
2026-07-18 UPS921 SAN → SDF Jul 18, 02:45 UTCJul 18, 06:20 UTC3h 36m
2026-07-17 UPS5636 SDF → SAN Jul 17, 20:40 UTCJul 18, 00:15 UTC3h 35m
2026-07-17 UPS5337 - Jul 17, 14:30 UTCJul 17, 15:44 UTC1h 15m
2026-07-17 UPS5337 - Jul 17, 12:00 UTCJul 17, 13:10 UTC1h 10m
2026-07-17 UPS1340 TPA → MIA Jul 17, 08:25 UTCJul 17, 08:59 UTC35m
2026-07-17 UPS1340 - Jul 17, 05:55 UTCJul 17, 07:30 UTC1h 35m
2026-07-17 UPS1331 - Jul 17, 02:20 UTCJul 17, 04:25 UTC2h 5m
2026-07-16 UPS5364 - Jul 16, 22:49 UTCJul 17, 00:04 UTC1h 15m
2026-07-16 UPS5364 - Jul 16, 20:09 UTCJul 16, 21:15 UTC1h 5m
2026-07-16 UPS5957 MHR → SDF Jul 16, 13:15 UTCJul 16, 17:05 UTC3h 50m
2026-07-16 UPS956 - Jul 16, 07:55 UTCJul 16, 11:40 UTC3h 45m
2026-07-16 UPS787 AUS → SDF Jul 16, 02:50 UTCJul 16, 04:55 UTC2h 5m
2026-07-15 UPS788 - Jul 15, 08:50 UTCJul 15, 10:35 UTC1h 45m
2026-07-15 UPS923 SBD → SDF Jul 15, 02:40 UTCJul 15, 06:15 UTC3h 35m
2026-07-14 UPS2902 - Jul 14, 19:35 UTCJul 14, 23:05 UTC3h 29m
2026-07-14 UPS2902 SDF → SBD Jul 14, 19:34 UTCJul 14, 23:05 UTC3h 31m
2026-07-14 UPS5151 - Jul 14, 11:55 UTCJul 14, 12:40 UTC45m
2026-07-14 UPS5151 PIT → SDF Jul 14, 11:46 UTCJul 14, 12:47 UTC1h 1m
2026-07-14 UPS1152 - Jul 14, 09:15 UTCJul 14, 10:05 UTC50m
2026-07-14 UPS1152 SDF → PIT Jul 14, 09:12 UTCJul 14, 10:12 UTC1h 0m
2026-07-14 UPS973 PDX → SDF Jul 14, 02:00 UTCJul 14, 05:45 UTC3h 45m
2026-07-14 UPS973 PDX → SDF Jul 14, 01:59 UTCJul 14, 05:40 UTC3h 41m
2026-07-12 UPS976 - Jul 12, 19:25 UTCJul 12, 23:25 UTC4h 0m
2026-07-12 UPS5839 OAK → SDF Jul 12, 12:35 UTCJul 12, 16:30 UTC3h 55m
2026-07-11 UPS5948 - Jul 11, 19:50 UTCJul 11, 23:45 UTC3h 55m

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 N919UP page for operator, model, and routing details .

Mode-S ACB9EA frequently asked

What is Mode-S code ACB9EA?
ACB9EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N919UP.
Where is Mode-S ACB9EA registered?
Mode-S code ACB9EA 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 ACB9EA broadcasting right now?
Yes. Mode-S ACB9EA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACB9EA, octal 53134752, decimal 11,319,786.
What flights does ACB9EA operate?
Mode-S ACB9EA has broadcast 20 distinct callsigns, including BOE327, UPS5839, UPS5340, UPS973, UPS9500.