Apparatus

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sensors Mode-S transponder

AC8CEB

ICAO 24-bit transponder address · allocated to United States

Hex
AC8CEB
Octal
53106353
Decimal
11,308,267
Country
US
No current signal · last broadcast 11h ago
Flights observed
97
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S AC8CEB.

Country allocation

The ICAO 24-bit address AC8CEB 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 1 distinct

Callsign Airline Flights Last seen
ASI998 - 97 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ASI998 DVT → DVT May 29, 21:45 UTCMay 29, 23:15 UTC1h 30m
2026-05-29 ASI998 DVT → DVT May 29, 16:25 UTCMay 29, 18:00 UTC1h 35m
2026-05-29 ASI998 DVT → DVT May 29, 03:45 UTCMay 29, 04:45 UTC1h 0m
2026-05-28 ASI998 DVT → DVT May 28, 18:50 UTCMay 28, 20:15 UTC1h 25m
2026-05-28 ASI998 - May 28, 14:20 UTCMay 28, 14:30 UTC10m
2026-05-28 ASI998 - May 28, 13:05 UTCMay 28, 14:15 UTC1h 10m
2026-05-26 ASI998 DVT → DVT May 26, 17:35 UTCMay 26, 19:15 UTC1h 40m
2026-05-26 ASI998 - May 26, 15:00 UTCMay 26, 16:24 UTC1h 25m
2026-05-25 ASI998 - May 25, 16:45 UTCMay 25, 17:05 UTC20m
2026-05-25 ASI998 - May 25, 14:20 UTCMay 25, 15:45 UTC1h 25m
2026-05-25 ASI998 - May 25, 07:20 UTCMay 25, 10:05 UTC2h 45m
2026-05-25 ASI998 DVT → ONT May 25, 03:30 UTCMay 25, 06:25 UTC2h 55m
2026-05-24 ASI998 - May 24, 16:40 UTCMay 24, 19:00 UTC2h 20m
2026-05-23 ASI998 DVT → DVT May 23, 12:35 UTCMay 23, 15:45 UTC3h 10m
2026-05-23 ASI998 - May 23, 04:20 UTCMay 23, 08:05 UTC3h 45m
2026-05-22 ASI998 DVT → DVT May 22, 20:25 UTCMay 22, 21:40 UTC1h 15m
2026-05-22 ASI998 - May 22, 15:15 UTCMay 22, 16:20 UTC1h 5m
2026-05-22 ASI998 - May 22, 12:50 UTCMay 22, 13:25 UTC35m
2026-05-21 ASI998 DVT → DVT May 21, 17:50 UTCMay 21, 18:10 UTC20m
2026-05-21 ASI998 - May 21, 17:10 UTCMay 21, 17:45 UTC35m
2026-05-21 ASI998 DVT → DVT May 21, 14:50 UTCMay 21, 15:45 UTC55m
2026-05-20 ASI998 - May 20, 16:25 UTCMay 20, 17:15 UTC50m
2026-05-19 ASI998 - May 19, 19:40 UTCMay 19, 20:00 UTC20m
2026-05-19 ASI998 - May 19, 17:00 UTCMay 19, 18:35 UTC1h 35m
2026-05-19 ASI998 - May 19, 14:25 UTCMay 19, 15:00 UTC35m
2026-05-18 ASI998 DVT → DVT May 18, 18:00 UTCMay 18, 18:30 UTC29m
2026-05-18 ASI998 - May 18, 15:05 UTCMay 18, 16:15 UTC1h 10m
2026-05-17 ASI998 - May 17, 17:45 UTCMay 17, 18:01 UTC15m
2026-05-17 ASI998 DVT → DVT May 17, 16:35 UTCMay 17, 17:40 UTC1h 5m
2026-05-17 ASI998 - May 17, 14:05 UTCMay 17, 14:35 UTC30m
2026-05-17 ASI998 - May 17, 12:55 UTCMay 17, 14:01 UTC1h 5m
2026-05-17 ASI998 DVT → DVT May 17, 01:20 UTCMay 17, 03:05 UTC1h 45m
2026-05-16 ASI998 DVT → DVT May 16, 22:30 UTCMay 17, 00:05 UTC1h 35m
2026-05-16 ASI998 - May 16, 15:55 UTCMay 16, 17:45 UTC1h 50m
2026-05-16 ASI998 - May 16, 14:41 UTCMay 16, 14:55 UTC15m
2026-05-16 ASI998 DVT → DVT May 16, 13:05 UTCMay 16, 14:31 UTC1h 25m
2026-05-14 ASI998 - May 14, 17:05 UTCMay 14, 18:45 UTC1h 40m
2026-05-14 ASI998 DVT → DVT May 14, 12:35 UTCMay 14, 14:40 UTC2h 5m
2026-05-13 ASI998 - May 13, 15:50 UTCMay 13, 18:00 UTC2h 10m
2026-05-13 ASI998 - May 13, 13:15 UTCMay 13, 13:50 UTC35m
2026-05-12 ASI998 - May 12, 20:45 UTCMay 12, 22:40 UTC1h 55m
2026-05-12 ASI998 - May 12, 16:30 UTCMay 12, 19:15 UTC2h 45m
2026-05-11 ASI998 DVT → DVT May 11, 19:20 UTCMay 11, 21:55 UTC2h 35m
2026-05-10 ASI998 DVT → DVT May 10, 22:40 UTCMay 10, 23:39 UTC1h 0m
2026-05-10 ASI998 DVT → DVT May 10, 19:00 UTCMay 10, 20:30 UTC1h 30m
2026-05-10 ASI998 DVT → DVT May 10, 15:24 UTCMay 10, 15:39 UTC15m
2026-05-10 ASI998 DVT → DVT May 10, 13:10 UTCMay 10, 13:30 UTC20m
2026-05-09 ASI998 - May 9, 18:55 UTCMay 9, 21:30 UTC2h 35m
2026-05-09 ASI998 - May 9, 14:55 UTCMay 9, 17:25 UTC2h 30m
2026-05-06 ASI998 DVT → DVT May 6, 19:05 UTCMay 6, 20:40 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.

Mode-S AC8CEB frequently asked

What is Mode-S code AC8CEB?
AC8CEB is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S AC8CEB registered?
Mode-S code AC8CEB 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 AC8CEB broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC8CEB, octal 53106353, decimal 11,308,267.
What flights does AC8CEB operate?
Mode-S AC8CEB has broadcast 1 distinct callsign, including ASI998.