Apparatus

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sensors Mode-S transponder

AA8499

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N777SA · BOEING 777-200LR · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AA8499
Octal
52502231
Decimal
11,175,065
Country
US
Tail
N777SA
Type
B77L
No current signal · last broadcast Jul 26, 15:00 UTC
Flights observed
174
Distinct callsigns
8
Country
US
Last broadcast
Jul 26, 15:00 UTC

Last known position

Most recent position reported by Mode-S AA8499.

Country allocation

The ICAO 24-bit address AA8499 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 8 distinct

Callsign Airline Flights Last seen
PAC998 Polar Air Cargo 82 2026-07-25
PAC947 Polar Air Cargo 47 2026-07-23
PAC992 - 21 2026-06-28
PAC958 Polar Air Cargo 13 2026-07-26
PAC717 - 3 2026-06-27
PAC997 - 2 2026-06-16
PAC998A - 1 2026-06-25
PAC947D - 1 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PAC958 CVG → NRT Jul 26, 14:35 UTCJul 26, 15:00 UTC25m
2026-07-25 PAC958 CVG → NRT Jul 25, 22:10 UTCJul 26, 12:35 UTC14h 26m
2026-07-25 PAC998 ANC → CVG Jul 25, 13:50 UTCJul 25, 19:15 UTC5h 25m
2026-07-24 PAC998 ANC → CVG Jul 24, 19:40 UTCJul 25, 11:50 UTC16h 10m
2026-07-23 PAC947 ANC → HKG Jul 23, 12:15 UTCJul 24, 02:25 UTC14h 10m
2026-07-23 PAC998 ANC → CVG Jul 23, 00:00 UTCJul 23, 05:30 UTC5h 30m
2026-07-22 PAC998 ANC → CVG Jul 22, 15:00 UTCJul 22, 22:15 UTC7h 15m
2026-07-21 PAC947 ANC → HKG Jul 21, 12:20 UTCJul 22, 02:40 UTC14h 20m
2026-07-21 PAC998 ANC → CVG Jul 21, 01:05 UTCJul 21, 06:30 UTC5h 25m
2026-07-20 PAC998 - Jul 20, 15:00 UTCJul 20, 23:30 UTC8h 30m
2026-07-19 PAC958 CVG → NRT Jul 19, 14:10 UTCJul 19, 14:50 UTC40m
2026-07-18 PAC958 CVG → NRT Jul 18, 20:35 UTCJul 19, 10:30 UTC13h 55m
2026-07-18 PAC998 ANC → CVG Jul 18, 11:30 UTCJul 18, 17:05 UTC5h 35m
2026-07-17 PAC998 ICN → ANC Jul 17, 20:25 UTCJul 18, 09:45 UTC13h 21m
2026-07-16 PAC947 - Jul 16, 12:20 UTCJul 17, 02:39 UTC14h 20m
2026-07-15 PAC998 - Jul 15, 23:55 UTCJul 16, 05:25 UTC5h 30m
2026-07-15 - ICN → ANC Jul 15, 06:55 UTCJul 15, 22:05 UTC15h 10m
2026-07-14 PAC947 - Jul 14, 12:20 UTCJul 15, 03:10 UTC14h 49m
2026-07-14 - - Jul 14, 00:10 UTCJul 14, 05:50 UTC5h 40m
2026-07-13 PAC998 - Jul 13, 02:20 UTCJul 13, 21:50 UTC19h 30m
2026-07-13 PAC998 ICN → ANC Jul 13, 02:01 UTCJul 13, 21:50 UTC19h 50m
2026-07-11 PAC958 CVG → ICN Jul 11, 22:25 UTCJul 12, 12:15 UTC13h 50m
2026-07-11 PAC998 ANC → CVG Jul 11, 13:05 UTCJul 11, 18:50 UTC5h 45m
2026-07-10 PAC998 ICN → ANC Jul 10, 19:35 UTCJul 11, 11:10 UTC15h 35m
2026-07-09 PAC947 ANC → HKG Jul 9, 13:10 UTCJul 10, 03:10 UTC14h 0m
2026-07-09 PAC998 - Jul 9, 00:55 UTCJul 9, 06:40 UTC5h 45m
2026-07-08 PAC998 ICN → ANC Jul 8, 07:10 UTCJul 8, 22:00 UTC14h 50m
2026-07-07 PAC947 ANC → HKG Jul 7, 12:25 UTCJul 8, 02:35 UTC14h 10m
2026-07-07 PAC998 ANC → CVG Jul 7, 02:10 UTCJul 7, 08:00 UTC5h 50m
2026-07-06 PAC998 ANC → CVG Jul 6, 16:40 UTCJul 7, 00:15 UTC7h 35m
2026-07-06 PAC998 ANC → CVG Jul 6, 00:20 UTCJul 7, 00:15 UTC23h 55m
2026-07-06 PAC998 ANC → CVG Jul 6, 00:00 UTCJul 6, 18:10 UTC18h 10m
2026-07-05 PAC958 - Jul 5, 07:45 UTCJul 5, 21:20 UTC13h 35m
2026-07-04 PAC998 ANC → CVG Jul 4, 23:10 UTCJul 5, 04:50 UTC5h 40m
2026-07-04 PAC998 ANC → CVG Jul 4, 05:40 UTCJul 4, 21:20 UTC15h 40m
2026-07-03 PAC947 ANC → HKG Jul 3, 12:55 UTCJul 4, 03:40 UTC14h 45m
2026-07-02 PAC998 ANC → CVG Jul 2, 23:20 UTCJul 3, 05:10 UTC5h 50m
2026-07-02 PAC998 ANC → CVG Jul 2, 07:00 UTCJul 2, 21:25 UTC14h 25m
2026-07-01 PAC947 ANC → HKG Jul 1, 12:10 UTCJul 2, 02:15 UTC14h 5m
2026-07-01 PAC998 ANC → CVG Jul 1, 01:10 UTCJul 1, 07:10 UTC6h 0m
2026-06-30 PAC998 ANC → CVG Jun 30, 06:00 UTCJun 30, 23:20 UTC17h 20m
2026-06-29 PAC947 ANC → HKG Jun 29, 09:44 UTCJun 29, 22:24 UTC12h 40m
2026-06-28 PAC992 - Jun 28, 17:19 UTCJun 28, 20:50 UTC3h 30m
2026-06-28 PAC992 - Jun 28, 04:29 UTCJun 28, 13:59 UTC9h 30m
2026-06-27 PAC717 - Jun 27, 19:49 UTCJun 28, 02:29 UTC6h 40m
2026-06-27 PAC947 ANC → HKG Jun 27, 04:15 UTCJun 27, 17:59 UTC13h 45m
2026-06-26 PAC998 ANC → CVG Jun 26, 19:14 UTCJun 27, 01:04 UTC5h 50m
2026-06-26 PAC998 ANC → CVG Jun 26, 04:30 UTCJun 26, 17:15 UTC12h 45m
2026-06-25 PAC947 ANC → HKG Jun 25, 12:25 UTCJun 26, 02:05 UTC13h 40m
2026-06-25 PAC998A ANC → CVG Jun 25, 03:44 UTCJun 25, 09:14 UTC5h 30m

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 N777SA page for operator, model, and routing details .

Mode-S AA8499 frequently asked

What is Mode-S code AA8499?
AA8499 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N777SA.
Where is Mode-S AA8499 registered?
Mode-S code AA8499 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 AA8499 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA8499, octal 52502231, decimal 11,175,065.
What flights does AA8499 operate?
Mode-S AA8499 has broadcast 8 distinct callsigns, including PAC998, PAC947, PAC992, PAC958, PAC717.