Apparatus

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sensors Mode-S transponder

AC8D58

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N908ER · CESSNA 172 Skyhawk · operated by EMBRY-RIDDLE AERONAUTICAL UNIVERSITY INC

Hex
AC8D58
Octal
53106530
Decimal
11,308,376
Country
US
Tail
N908ER
Type
C172
No current signal · last broadcast 3h ago
Flights observed
201
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AC8D58.

Country allocation

The ICAO 24-bit address AC8D58 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
ERU908 - 201 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ERU908 - Jul 14, 10:30 UTCJul 14, 12:00 UTC1h 30m
2026-07-14 ERU908 - Jul 14, 01:10 UTCJul 14, 02:35 UTC1h 25m
2026-07-13 ERU908 - Jul 13, 17:10 UTCJul 13, 18:05 UTC55m
2026-07-10 ERU908 - Jul 10, 13:15 UTCJul 10, 15:35 UTC2h 20m
2026-07-09 ERU908 - Jul 9, 12:45 UTCJul 9, 14:25 UTC1h 40m
2026-07-08 ERU908 - Jul 8, 13:50 UTCJul 8, 14:30 UTC40m
2026-07-08 ERU908 - Jul 8, 12:30 UTCJul 8, 13:05 UTC35m
2026-07-07 ERU908 - Jul 7, 15:45 UTCJul 7, 17:10 UTC1h 25m
2026-07-02 ERU908 - Jul 2, 12:15 UTCJul 2, 13:20 UTC1h 5m
2026-07-01 ERU908 - Jul 1, 15:05 UTCJul 1, 15:20 UTC15m
2026-06-30 ERU908 DAB → DAB Jun 30, 13:25 UTCJun 30, 13:35 UTC10m
2026-06-29 ERU908 - Jun 29, 16:10 UTCJun 29, 16:29 UTC20m
2026-06-26 ERU908 - Jun 26, 12:59 UTCJun 26, 15:10 UTC2h 10m
2026-06-25 ERU908 - Jun 25, 15:59 UTCJun 25, 17:30 UTC1h 30m
2026-06-25 ERU908 - Jun 25, 11:59 UTCJun 25, 14:04 UTC2h 5m
2026-06-24 ERU908 - Jun 24, 12:50 UTCJun 24, 15:05 UTC2h 15m
2026-06-23 ERU908 - Jun 23, 16:05 UTCJun 23, 17:09 UTC1h 5m
2026-06-23 ERU908 - Jun 23, 12:55 UTCJun 23, 14:29 UTC1h 35m
2026-06-22 ERU908 - Jun 22, 17:34 UTCJun 22, 19:00 UTC1h 25m
2026-06-22 ERU908 - Jun 22, 13:10 UTCJun 22, 15:05 UTC1h 55m
2026-06-19 ERU908 - Jun 19, 13:04 UTCJun 19, 14:09 UTC1h 5m
2026-06-18 ERU908 - Jun 18, 16:10 UTCJun 18, 17:25 UTC1h 15m
2026-06-18 ERU908 - Jun 18, 14:01 UTCJun 18, 14:30 UTC30m
2026-06-18 ERU908 - Jun 18, 12:35 UTCJun 18, 13:10 UTC35m
2026-06-17 ERU908 - Jun 17, 17:55 UTCJun 17, 19:10 UTC1h 15m
2026-06-17 ERU908 - Jun 17, 13:05 UTCJun 17, 14:30 UTC1h 25m
2026-06-16 ERU908 - Jun 16, 13:25 UTCJun 16, 14:15 UTC50m
2026-06-13 ERU908 - Jun 13, 13:00 UTCJun 13, 14:15 UTC1h 15m
2026-06-12 ERU908 - Jun 12, 21:05 UTCJun 12, 21:55 UTC50m
2026-06-12 ERU908 - Jun 12, 19:05 UTCJun 12, 19:20 UTC15m
2026-06-12 ERU908 - Jun 12, 13:00 UTCJun 12, 14:40 UTC1h 40m
2026-06-11 ERU908 - Jun 11, 20:25 UTCJun 11, 20:55 UTC30m
2026-06-11 ERU908 - Jun 11, 17:40 UTCJun 11, 18:00 UTC20m
2026-06-11 ERU908 - Jun 11, 14:20 UTCJun 11, 15:05 UTC45m
2026-06-10 ERU908 - Jun 10, 22:30 UTCJun 11, 00:00 UTC1h 30m
2026-06-10 ERU908 - Jun 10, 17:40 UTCJun 10, 18:15 UTC35m
2026-06-10 ERU908 - Jun 10, 10:30 UTCJun 10, 11:20 UTC50m
2026-06-09 ERU908 - Jun 9, 17:45 UTCJun 9, 19:00 UTC1h 15m
2026-06-09 ERU908 - Jun 9, 10:40 UTCJun 9, 12:25 UTC1h 45m
2026-06-08 ERU908 - Jun 8, 23:10 UTCJun 8, 23:50 UTC40m
2026-06-08 ERU908 - Jun 8, 22:05 UTCJun 8, 22:30 UTC25m
2026-06-08 ERU908 - Jun 8, 18:20 UTCJun 8, 19:45 UTC1h 25m
2026-06-08 ERU908 - Jun 8, 16:00 UTCJun 8, 16:55 UTC55m
2026-06-08 ERU908 - Jun 8, 13:05 UTCJun 8, 14:20 UTC1h 15m
2026-06-05 ERU908 - Jun 5, 22:50 UTCJun 6, 00:15 UTC1h 25m
2026-06-05 ERU908 - Jun 5, 18:30 UTCJun 5, 19:50 UTC1h 20m
2026-06-05 ERU908 - Jun 5, 13:40 UTCJun 5, 15:50 UTC2h 10m
2026-06-05 ERU908 - Jun 5, 01:45 UTCJun 5, 02:00 UTC15m
2026-06-04 ERU908 - Jun 4, 21:20 UTCJun 4, 23:00 UTC1h 40m
2026-06-04 ERU908 - Jun 4, 17:50 UTCJun 4, 19:20 UTC1h 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 N908ER page for operator, model, and routing details .

Mode-S AC8D58 frequently asked

What is Mode-S code AC8D58?
AC8D58 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N908ER.
Where is Mode-S AC8D58 registered?
Mode-S code AC8D58 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 AC8D58 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC8D58, octal 53106530, decimal 11,308,376.
What flights does AC8D58 operate?
Mode-S AC8D58 has broadcast 1 distinct callsign, including ERU908.