Apparatus

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sensors Mode-S transponder

AD52D3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N958ER · CESSNA 172 Skyhawk · operated by EMBRY-RIDDLE AERONAUTICAL UNIVERSITY

Hex
AD52D3
Octal
53251323
Decimal
11,358,931
Country
US
Tail
N958ER
Type
C172
No current signal · last broadcast 3h ago
Flights observed
279
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AD52D3.

Country allocation

The ICAO 24-bit address AD52D3 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
ERU958 - 279 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ERU958 - Jul 14, 11:35 UTCJul 14, 13:10 UTC1h 35m
2026-07-14 ERU958 - Jul 14, 00:35 UTCJul 14, 01:30 UTC55m
2026-07-13 ERU958 - Jul 13, 17:00 UTCJul 13, 18:05 UTC1h 5m
2026-07-13 ERU958 - Jul 13, 14:25 UTCJul 13, 14:50 UTC25m
2026-07-13 ERU958 - Jul 13, 13:05 UTCJul 13, 13:50 UTC45m
2026-07-12 ERU958 - Jul 12, 11:40 UTCJul 12, 14:55 UTC3h 15m
2026-07-12 ERU958 - Jul 12, 04:01 UTCJul 12, 05:30 UTC1h 30m
2026-07-12 ERU958 - Jul 12, 01:35 UTCJul 12, 02:05 UTC30m
2026-07-11 ERU958 - Jul 11, 20:35 UTCJul 11, 22:01 UTC1h 25m
2026-07-11 ERU958 - Jul 11, 14:30 UTCJul 11, 16:40 UTC2h 10m
2026-07-11 ERU958 - Jul 11, 10:25 UTCJul 11, 11:55 UTC1h 30m
2026-07-10 ERU958 - Jul 10, 16:55 UTCJul 10, 18:15 UTC1h 20m
2026-07-10 ERU958 - Jul 10, 14:20 UTCJul 10, 14:30 UTC10m
2026-07-10 ERU958 - Jul 10, 12:50 UTCJul 10, 13:05 UTC15m
2026-07-09 ERU958 - Jul 9, 23:00 UTCJul 10, 00:10 UTC1h 10m
2026-07-09 ERU958 - Jul 9, 20:50 UTCJul 9, 21:10 UTC20m
2026-07-09 ERU958 - Jul 9, 19:45 UTCJul 9, 20:00 UTC15m
2026-07-09 ERU958 - Jul 9, 16:10 UTCJul 9, 17:40 UTC1h 30m
2026-07-09 ERU958 - Jul 9, 13:25 UTCJul 9, 14:25 UTC1h 0m
2026-07-09 ERU958 - Jul 9, 10:35 UTCJul 9, 11:40 UTC1h 5m
2026-07-08 ERU958 - Jul 8, 20:10 UTCJul 8, 21:10 UTC1h 0m
2026-07-08 ERU958 - Jul 8, 15:05 UTCJul 8, 15:35 UTC30m
2026-07-08 ERU958 - Jul 8, 13:45 UTCJul 8, 14:15 UTC30m
2026-07-08 ERU958 - Jul 8, 10:10 UTCJul 8, 11:10 UTC1h 0m
2026-07-08 ERU958 - Jul 8, 01:25 UTCJul 8, 02:40 UTC1h 15m
2026-07-07 ERU958 - Jul 7, 15:50 UTCJul 7, 16:55 UTC1h 5m
2026-07-07 ERU958 - Jul 7, 12:35 UTCJul 7, 14:15 UTC1h 40m
2026-07-07 ERU958 - Jul 7, 02:10 UTCJul 7, 02:30 UTC20m
2026-07-07 ERU958 - Jul 7, 01:00 UTCJul 7, 01:35 UTC35m
2026-07-06 ERU958 - Jul 6, 22:55 UTCJul 6, 23:40 UTC45m
2026-07-06 ERU958 - Jul 6, 17:25 UTCJul 6, 18:35 UTC1h 10m
2026-07-06 ERU958 - Jul 6, 13:55 UTCJul 6, 14:50 UTC55m
2026-07-06 ERU958 - Jul 6, 12:50 UTCJul 6, 13:20 UTC30m
2026-07-06 ERU958 - Jul 6, 10:35 UTCJul 6, 11:30 UTC55m
2026-07-05 ERU958 - Jul 5, 01:00 UTCJul 5, 02:10 UTC1h 10m
2026-07-04 ERU958 - Jul 4, 13:45 UTCJul 4, 15:15 UTC1h 30m
2026-07-04 ERU958 - Jul 4, 04:45 UTCJul 4, 05:40 UTC55m
2026-07-04 ERU958 - Jul 4, 01:40 UTCJul 4, 03:15 UTC1h 35m
2026-07-03 ERU958 - Jul 3, 20:40 UTCJul 3, 21:45 UTC1h 5m
2026-07-03 ERU958 - Jul 3, 15:40 UTCJul 3, 17:25 UTC1h 45m
2026-07-03 ERU958 - Jul 3, 10:30 UTCJul 3, 11:45 UTC1h 15m
2026-07-02 ERU958 - Jul 2, 22:55 UTCJul 2, 23:45 UTC50m
2026-07-02 ERU958 - Jul 2, 19:55 UTCJul 2, 21:25 UTC1h 30m
2026-07-02 ERU958 - Jul 2, 17:35 UTCJul 2, 17:55 UTC20m
2026-07-02 ERU958 - Jul 2, 15:55 UTCJul 2, 16:20 UTC25m
2026-07-02 ERU958 - Jul 2, 11:50 UTCJul 2, 13:20 UTC1h 30m
2026-07-02 ERU958 - Jul 2, 00:45 UTCJul 2, 01:55 UTC1h 10m
2026-07-01 ERU958 - Jul 1, 20:55 UTCJul 1, 22:10 UTC1h 15m
2026-07-01 ERU958 - Jul 1, 15:10 UTCJul 1, 16:40 UTC1h 30m
2026-07-01 ERU958 - Jul 1, 12:00 UTCJul 1, 12:35 UTC35m

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 N958ER page for operator, model, and routing details .

Mode-S AD52D3 frequently asked

What is Mode-S code AD52D3?
AD52D3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N958ER.
Where is Mode-S AD52D3 registered?
Mode-S code AD52D3 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 AD52D3 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 AD52D3, octal 53251323, decimal 11,358,931.
What flights does AD52D3 operate?
Mode-S AD52D3 has broadcast 1 distinct callsign, including ERU958.