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sensors Mode-S transponder

A27547

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N258AS · EMBRAER EMB-120 Brasilia · operated by UAS TRANSERVICES INC

Hex
A27547
Octal
50472507
Decimal
10,646,855
Country
US
Tail
N258AS
Type
E120
No current signal · last broadcast 5h ago
Flights observed
118
Distinct callsigns
4
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A27547.

Country allocation

The ICAO 24-bit address A27547 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 4 distinct

Callsign Airline Flights Last seen
AMF1988 - 37 2026-07-16
AMF1987 - 37 2026-07-17
AMF1996 - 25 2026-07-17
AMF1995 - 19 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 AMF1995 - Jul 18, 00:39 UTCJul 18, 01:10 UTC30m
2026-07-17 AMF1996 - Jul 17, 13:10 UTCJul 17, 13:50 UTC40m
2026-07-17 AMF1987 - Jul 17, 00:50 UTCJul 17, 01:15 UTC25m
2026-07-16 AMF1988 - Jul 16, 13:34 UTCJul 16, 14:00 UTC25m
2026-07-16 AMF1987 - Jul 16, 00:40 UTCJul 16, 01:05 UTC25m
2026-07-15 AMF1988 - Jul 15, 13:30 UTCJul 15, 13:55 UTC25m
2026-07-15 AMF1987 - Jul 15, 00:45 UTCJul 15, 01:10 UTC25m
2026-07-14 AMF1988 - Jul 14, 13:30 UTCJul 14, 13:55 UTC25m
2026-07-14 AMF1987 - Jul 14, 00:45 UTCJul 14, 01:10 UTC25m
2026-07-13 AMF1988 - Jul 13, 20:40 UTCJul 13, 21:10 UTC30m
2026-07-11 AMF1996 - Jul 11, 16:10 UTCJul 11, 17:05 UTC55m
2026-07-11 AMF1995 - Jul 11, 00:45 UTCJul 11, 01:05 UTC20m
2026-07-10 AMF1996 - Jul 10, 13:30 UTCJul 10, 14:00 UTC30m
2026-07-10 AMF1987 - Jul 10, 00:35 UTCJul 10, 01:05 UTC30m
2026-07-09 AMF1988 - Jul 9, 13:20 UTCJul 9, 13:50 UTC30m
2026-07-09 AMF1987 - Jul 9, 00:40 UTCJul 9, 01:10 UTC30m
2026-07-08 AMF1988 - Jul 8, 13:20 UTCJul 8, 13:45 UTC25m
2026-07-08 AMF1987 - Jul 8, 00:35 UTCJul 8, 01:05 UTC30m
2026-07-07 AMF1988 - Jul 7, 13:20 UTCJul 7, 13:45 UTC25m
2026-07-07 AMF1987 - Jul 7, 00:35 UTCJul 7, 01:10 UTC35m
2026-07-06 AMF1988 - Jul 6, 21:10 UTCJul 6, 21:35 UTC25m
2026-07-04 AMF1987 - Jul 4, 00:30 UTCJul 4, 00:55 UTC25m
2026-07-03 AMF1988 - Jul 3, 13:20 UTCJul 3, 13:50 UTC30m
2026-07-03 AMF1987 - Jul 3, 00:30 UTCJul 3, 01:05 UTC35m
2026-07-02 AMF1988 - Jul 2, 13:10 UTCJul 2, 13:35 UTC25m
2026-07-02 AMF1987 - Jul 2, 00:50 UTCJul 2, 01:25 UTC35m
2026-07-01 AMF1988 - Jul 1, 13:45 UTCJul 1, 14:10 UTC25m
2026-06-24 AMF1987 - Jun 24, 00:34 UTCJun 24, 00:59 UTC25m
2026-06-23 AMF1988 - Jun 23, 13:19 UTCJun 23, 13:45 UTC25m
2026-06-23 AMF1987 - Jun 23, 00:39 UTCJun 23, 01:04 UTC25m
2026-06-22 AMF1988 - Jun 22, 20:49 UTCJun 22, 21:10 UTC20m
2026-06-20 AMF1987 - Jun 20, 00:29 UTCJun 20, 00:54 UTC25m
2026-06-19 AMF1988 - Jun 19, 13:44 UTCJun 19, 14:44 UTC1h 0m
2026-06-19 AMF1987 - Jun 19, 00:34 UTCJun 19, 01:10 UTC35m
2026-06-18 AMF1988 - Jun 18, 13:50 UTCJun 18, 14:10 UTC20m
2026-06-18 AMF1987 - Jun 18, 00:40 UTCJun 18, 01:05 UTC25m
2026-06-17 AMF1988 - Jun 17, 14:00 UTCJun 17, 14:20 UTC20m
2026-06-17 AMF1987 - Jun 17, 00:35 UTCJun 17, 01:00 UTC25m
2026-06-16 AMF1988 - Jun 16, 14:45 UTCJun 16, 15:09 UTC25m
2026-06-16 AMF1987 - Jun 16, 00:45 UTCJun 16, 01:10 UTC25m
2026-06-15 AMF1988 - Jun 15, 20:45 UTCJun 15, 21:04 UTC20m
2026-06-13 AMF1987 - Jun 13, 00:35 UTCJun 13, 01:00 UTC25m
2026-06-12 AMF1988 - Jun 12, 13:25 UTCJun 12, 13:50 UTC25m
2026-06-12 AMF1987 - Jun 12, 00:45 UTCJun 12, 01:10 UTC25m
2026-06-11 AMF1988 - Jun 11, 13:30 UTCJun 11, 14:00 UTC30m
2026-06-11 AMF1987 - Jun 11, 00:35 UTCJun 11, 01:10 UTC35m
2026-06-10 AMF1988 - Jun 10, 13:45 UTCJun 10, 14:10 UTC25m
2026-06-10 AMF1987 - Jun 10, 00:40 UTCJun 10, 01:05 UTC25m
2026-06-09 AMF1988 - Jun 9, 13:20 UTCJun 9, 13:50 UTC30m
2026-06-06 AMF1996 - Jun 6, 14:50 UTCJun 6, 15:39 UTC50m

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 N258AS page for operator, model, and routing details .

Mode-S A27547 frequently asked

What is Mode-S code A27547?
A27547 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N258AS.
Where is Mode-S A27547 registered?
Mode-S code A27547 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 A27547 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A27547, octal 50472507, decimal 10,646,855.
What flights does A27547 operate?
Mode-S A27547 has broadcast 4 distinct callsigns, including AMF1988, AMF1987, AMF1996, AMF1995.