Apparatus

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sensors Mode-S transponder

ABAF3A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N852ER · operated by EMBRY-RIDDLE AERONAUTICAL UNIVERSITY INC

Hex
ABAF3A
Octal
52727472
Decimal
11,251,514
Country
US
Tail
N852ER
Type
C172
No current signal · last broadcast Jul 25, 18:40 UTC
Flights observed
260
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 18:40 UTC

Last known position

Most recent position reported by Mode-S ABAF3A.

Country allocation

The ICAO 24-bit address ABAF3A 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
ERU852 - 259 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ERU852 DAB → DAB Jul 25, 18:05 UTCJul 25, 18:40 UTC35m
2026-07-25 ERU852 - Jul 25, 12:55 UTCJul 25, 15:15 UTC2h 20m
2026-07-24 ERU852 - Jul 24, 11:00 UTCJul 24, 12:50 UTC1h 50m
2026-07-24 ERU852 - Jul 24, 03:20 UTCJul 24, 04:25 UTC1h 5m
2026-07-23 ERU852 - Jul 23, 23:10 UTCJul 23, 23:50 UTC40m
2026-07-23 ERU852 - Jul 23, 18:05 UTCJul 23, 18:55 UTC50m
2026-07-23 ERU852 - Jul 23, 13:10 UTCJul 23, 14:40 UTC1h 30m
2026-07-23 ERU852 - Jul 23, 10:30 UTCJul 23, 12:10 UTC1h 40m
2026-07-23 ERU852 - Jul 23, 00:00 UTCJul 23, 01:30 UTC1h 30m
2026-07-22 ERU852 - Jul 22, 20:10 UTCJul 22, 21:55 UTC1h 45m
2026-07-22 ERU852 - Jul 22, 16:40 UTCJul 22, 17:10 UTC30m
2026-07-22 ERU852 - Jul 22, 15:50 UTCJul 22, 16:00 UTC10m
2026-07-22 ERU852 - Jul 22, 12:40 UTCJul 22, 14:05 UTC1h 25m
2026-07-22 ERU852 - Jul 22, 02:20 UTCJul 22, 03:00 UTC40m
2026-07-21 ERU852 - Jul 21, 23:30 UTCJul 22, 01:00 UTC1h 30m
2026-07-21 ERU852 - Jul 21, 17:35 UTCJul 21, 18:00 UTC25m
2026-07-21 ERU852 - Jul 21, 10:45 UTCJul 21, 13:15 UTC2h 30m
2026-07-21 ERU852 - Jul 21, 01:20 UTCJul 21, 02:25 UTC1h 5m
2026-07-20 ERU852 - Jul 20, 18:25 UTCJul 20, 19:05 UTC40m
2026-07-20 ERU852 - Jul 20, 11:45 UTCJul 20, 12:10 UTC25m
2026-07-19 ERU852 - Jul 19, 14:55 UTCJul 19, 16:50 UTC1h 55m
2026-07-19 ERU852 - Jul 19, 03:00 UTCJul 19, 04:15 UTC1h 15m
2026-07-18 ERU852 - Jul 18, 17:25 UTCJul 18, 18:05 UTC40m
2026-07-16 ERU852 - Jul 16, 16:49 UTCJul 16, 17:10 UTC20m
2026-07-16 ERU852 - Jul 16, 15:45 UTCJul 16, 16:05 UTC20m
2026-07-16 ERU852 - Jul 16, 13:25 UTCJul 16, 13:45 UTC20m
2026-07-16 ERU852 - Jul 16, 00:10 UTCJul 16, 01:15 UTC1h 5m
2026-07-15 ERU852 - Jul 15, 19:55 UTCJul 15, 20:40 UTC45m
2026-07-15 ERU852 - Jul 15, 17:30 UTCJul 15, 17:55 UTC25m
2026-07-15 ERU852 - Jul 15, 12:55 UTCJul 15, 13:20 UTC25m
2026-07-14 ERU852 - Jul 14, 15:20 UTCJul 14, 16:40 UTC1h 20m
2026-07-11 ERU852 - Jul 11, 15:35 UTCJul 11, 16:00 UTC25m
2026-07-11 ERU852 - Jul 11, 12:15 UTCJul 11, 13:35 UTC1h 20m
2026-07-10 ERU852 - Jul 10, 20:10 UTCJul 10, 22:05 UTC1h 55m
2026-07-10 ERU852 - Jul 10, 15:50 UTCJul 10, 17:15 UTC1h 25m
2026-07-09 ERU852 DAB → DAB Jul 9, 20:55 UTCJul 9, 21:30 UTC35m
2026-07-09 ERU852 - Jul 9, 11:00 UTCJul 9, 12:25 UTC1h 25m
2026-07-08 ERU852 - Jul 8, 22:15 UTCJul 8, 22:50 UTC35m
2026-07-08 ERU852 - Jul 8, 10:55 UTCJul 8, 12:05 UTC1h 10m
2026-07-07 ERU852 - Jul 7, 22:50 UTCJul 7, 23:20 UTC30m
2026-07-06 ERU852 - Jul 6, 01:05 UTCJul 6, 02:55 UTC1h 50m
2026-07-05 ERU852 - Jul 5, 13:40 UTCJul 5, 14:25 UTC45m
2026-07-05 ERU852 - Jul 5, 12:30 UTCJul 5, 12:55 UTC25m
2026-07-04 ERU852 - Jul 4, 14:50 UTCJul 4, 16:55 UTC2h 5m
2026-07-04 ERU852 - Jul 4, 01:55 UTCJul 4, 05:00 UTC3h 5m
2026-07-03 ERU852 - Jul 3, 20:10 UTCJul 3, 20:20 UTC10m
2026-07-03 ERU852 - Jul 3, 12:55 UTCJul 3, 14:25 UTC1h 30m
2026-07-03 ERU852 - Jul 3, 02:15 UTCJul 3, 03:15 UTC1h 0m
2026-07-03 ERU852 - Jul 3, 01:10 UTCJul 3, 01:35 UTC25m
2026-07-02 ERU852 - Jul 2, 19:50 UTCJul 2, 20:05 UTC15m

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 N852ER page for operator, model, and routing details .

Mode-S ABAF3A frequently asked

What is Mode-S code ABAF3A?
ABAF3A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N852ER.
Where is Mode-S ABAF3A registered?
Mode-S code ABAF3A 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 ABAF3A broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 18:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABAF3A, octal 52727472, decimal 11,251,514.
What flights does ABAF3A operate?
Mode-S ABAF3A has broadcast 1 distinct callsign, including ERU852.