Apparatus

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sensors Mode-S transponder

A77F26

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N582UP · BOEING 747-400 · operated by C C & E I LLC

Hex
A77F26
Octal
51677446
Decimal
10,977,062
Country
US
Tail
N582UP
Type
B744
No current signal · last broadcast Jul 25, 04:40 UTC
Flights observed
237
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 04:40 UTC

Last known position

Most recent position reported by Mode-S A77F26.

Country allocation

The ICAO 24-bit address A77F26 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
UPS80 United Parcel Service 18 2026-06-13
UPS77 United Parcel Service 18 2026-04-29
UPS61 United Parcel Service 15 2026-07-22
UPS76 United Parcel Service 11 2026-04-28
UPS83 United Parcel Service 10 2026-06-15
UPS81 United Parcel Service 10 2026-06-13
UPS62 - 10 2026-07-16
UPS60 United Parcel Service 10 2026-05-14
UPS340 United Parcel Service 8 2026-07-23
UPS109 United Parcel Service 8 2026-05-01
UPS59 United Parcel Service 6 2026-07-21
UPS70 United Parcel Service 5 2026-07-24
UPS6099 - 5 2026-04-13
UPS214 - 5 2026-06-16
UPS94 United Parcel Service 4 2026-06-01
UPS67 United Parcel Service 4 2026-05-29
UPS65 United Parcel Service 4 2026-04-22
UPS58 United Parcel Service 4 2026-07-21
UPS56 United Parcel Service 4 2026-07-21
UPS54 United Parcel Service 4 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 UPS70 SDF → HNL Jul 24, 17:50 UTCJul 25, 04:25 UTC10h 35m
2026-07-24 UPS70 SDF → HNL Jul 24, 09:25 UTCJul 24, 15:50 UTC6h 25m
2026-07-23 UPS327 SJU → SDF Jul 23, 15:05 UTCJul 23, 18:50 UTC3h 45m
2026-07-23 UPS340 SDF → SJU Jul 23, 12:05 UTCJul 23, 12:30 UTC25m
2026-07-23 UPS340 SDF → SJU Jul 23, 09:00 UTCJul 23, 10:10 UTC1h 10m
2026-07-22 UPS61 TPE → ANC Jul 22, 23:35 UTCJul 23, 05:05 UTC5h 30m
2026-07-22 UPS61 TPE → ANC Jul 22, 13:25 UTCJul 22, 21:55 UTC8h 30m
2026-07-21 UPS58 HNL → SDF Jul 21, 19:35 UTCJul 22, 05:25 UTC9h 50m
2026-07-21 UPS56 SDF → ANC Jul 21, 10:40 UTCJul 21, 16:05 UTC5h 25m
2026-07-21 UPS59 HKG → ANC Jul 21, 00:35 UTCJul 21, 05:20 UTC4h 45m
2026-07-20 UPS59 HKG → ANC Jul 20, 12:10 UTCJul 20, 22:20 UTC10h 10m
2026-07-20 UPS58 HNL → SDF Jul 20, 00:45 UTCJul 20, 02:05 UTC1h 20m
2026-07-18 UPS58 HNL → SDF Jul 18, 21:55 UTCJul 18, 22:20 UTC25m
2026-07-18 UPS56 SDF → ANC Jul 18, 13:40 UTCJul 18, 19:00 UTC5h 20m
2026-07-18 UPS916 - Jul 18, 07:55 UTCJul 18, 11:20 UTC3h 25m
2026-07-17 UPS61 - Jul 17, 23:55 UTCJul 18, 05:30 UTC5h 36m
2026-07-17 UPS61 - Jul 17, 13:00 UTCJul 17, 21:55 UTC8h 55m
2026-07-17 UPS61 HKG → TPE Jul 17, 08:20 UTCJul 17, 09:50 UTC1h 30m
2026-07-16 UPS62 ANC → HKG Jul 16, 17:54 UTCJul 17, 03:55 UTC10h 0m
2026-07-16 UPS62 - Jul 16, 08:05 UTCJul 16, 14:25 UTC6h 20m
2026-07-16 UPS751 DFW → SDF Jul 16, 01:20 UTCJul 16, 02:50 UTC1h 30m
2026-07-15 UPS2762 - Jul 15, 21:05 UTCJul 15, 22:50 UTC1h 45m
2026-06-25 UPS197 - Jun 25, 07:59 UTCJun 25, 13:29 UTC5h 30m
2026-06-24 UPS2998 - Jun 24, 21:19 UTCJun 25, 03:44 UTC6h 25m
2026-06-24 UPS216 CGN → SDF Jun 24, 09:15 UTCJun 24, 17:45 UTC8h 30m
2026-06-23 UPS217 - Jun 23, 22:05 UTCJun 24, 05:44 UTC7h 40m
2026-06-23 UPS327 - Jun 23, 14:49 UTCJun 23, 18:25 UTC3h 35m
2026-06-23 UPS340 - Jun 23, 12:09 UTCJun 23, 12:25 UTC15m
2026-06-23 UPS340 - Jun 23, 08:50 UTCJun 23, 10:44 UTC1h 55m
2026-06-22 UPS99 ANC → SDF Jun 22, 23:14 UTCJun 23, 05:09 UTC5h 55m
2026-06-22 UPS99 ICN → ANC Jun 22, 12:54 UTCJun 22, 20:44 UTC7h 50m
2026-06-21 UPS37 HNL → SDF Jun 21, 09:10 UTCJun 21, 19:34 UTC10h 25m
2026-06-20 UPS34 - Jun 20, 20:14 UTCJun 20, 20:49 UTC35m
2026-06-20 UPS34 HNL → SYD Jun 20, 20:11 UTCJun 21, 05:42 UTC9h 31m
2026-06-20 UPS32 SDF → HNL Jun 20, 09:05 UTCJun 20, 13:14 UTC4h 10m
2026-06-20 UPS32 SDF → HNL Jun 20, 09:04 UTCJun 20, 17:49 UTC8h 45m
2026-06-20 UPS329 SJU → SDF Jun 20, 01:19 UTCJun 20, 04:54 UTC3h 35m
2026-06-19 UPS340 - Jun 19, 09:30 UTCJun 19, 12:49 UTC3h 20m
2026-06-19 UPS559 MSP → SDF Jun 19, 03:44 UTCJun 19, 05:05 UTC1h 20m
2026-06-18 UPS2568 - Jun 18, 22:20 UTCJun 18, 23:50 UTC1h 30m
2026-06-18 UPS2568 SDF → MSP Jun 18, 22:07 UTCJun 18, 23:46 UTC1h 39m
2026-06-17 UPS327 SJU → SDF Jun 17, 15:00 UTCJun 17, 18:40 UTC3h 40m
2026-06-17 UPS327 SJU → SDF Jun 17, 14:51 UTCJun 17, 18:39 UTC3h 48m
2026-06-17 UPS340 - Jun 17, 12:00 UTCJun 17, 12:25 UTC25m
2026-06-17 UPS340 - Jun 17, 09:00 UTCJun 17, 10:25 UTC1h 25m
2026-06-17 UPS340 SDF → SJU Jun 17, 08:54 UTCJun 17, 12:26 UTC3h 32m
2026-06-16 UPS214 - Jun 16, 19:35 UTCJun 17, 03:50 UTC8h 16m
2026-06-16 UPS223 - Jun 16, 07:34 UTCJun 16, 15:05 UTC7h 30m
2026-06-15 UPS83 ORD → SDF Jun 15, 05:45 UTCJun 15, 06:35 UTC50m
2026-06-15 UPS83 ORD → SDF Jun 15, 05:51 UTCJun 15, 06:30 UTC39m

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 N582UP page for operator, model, and routing details .

Mode-S A77F26 frequently asked

What is Mode-S code A77F26?
A77F26 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N582UP.
Where is Mode-S A77F26 registered?
Mode-S code A77F26 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 A77F26 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 04:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A77F26, octal 51677446, decimal 10,977,062.
What flights does A77F26 operate?
Mode-S A77F26 has broadcast 20 distinct callsigns, including UPS80, UPS77, UPS61, UPS76, UPS83.