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sensors Mode-S transponder

A676B1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5152S · PIPER PA-28-140/150/160/180 · operated by HARRIER AVIATION LLC

Hex
A676B1
Octal
51473261
Decimal
10,909,361
Country
US
Tail
N5152S
Type
P28A
No current signal · last broadcast 8d ago
Flights observed
128
Distinct callsigns
1
Country
US
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S A676B1.

Country allocation

The ICAO 24-bit address A676B1 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
N5152S - 128 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N5152S - Jul 26, 20:10 UTCJul 26, 21:50 UTC1h 40m
2026-07-26 N5152S - Jul 26, 17:30 UTCJul 26, 17:40 UTC10m
2026-07-26 N5152S - Jul 26, 16:55 UTCJul 26, 17:05 UTC10m
2026-07-26 N5152S - Jul 26, 13:15 UTCJul 26, 15:55 UTC2h 40m
2026-07-25 N5152S - Jul 25, 02:00 UTCJul 25, 03:45 UTC1h 45m
2026-07-23 N5152S - Jul 23, 22:50 UTCJul 23, 23:25 UTC35m
2026-07-23 N5152S - Jul 23, 21:25 UTCJul 23, 22:05 UTC40m
2026-07-23 N5152S - Jul 23, 19:15 UTCJul 23, 20:10 UTC55m
2026-07-23 N5152S - Jul 23, 13:40 UTCJul 23, 15:55 UTC2h 15m
2026-07-23 N5152S - Jul 23, 00:15 UTCJul 23, 01:05 UTC50m
2026-07-22 N5152S - Jul 22, 21:25 UTCJul 22, 22:10 UTC45m
2026-07-22 N5152S - Jul 22, 17:35 UTCJul 22, 18:25 UTC50m
2026-07-19 N5152S - Jul 19, 22:45 UTCJul 20, 01:00 UTC2h 15m
2026-07-13 N5152S - Jul 13, 14:40 UTCJul 13, 18:00 UTC3h 20m
2026-07-11 N5152S - Jul 11, 18:25 UTCJul 11, 18:35 UTC10m
2026-07-11 N5152S - Jul 11, 18:00 UTCJul 11, 18:10 UTC10m
2026-07-11 N5152S - Jul 11, 14:35 UTCJul 11, 17:00 UTC2h 25m
2026-07-09 N5152S - Jul 9, 23:25 UTCJul 10, 01:30 UTC2h 5m
2026-07-09 N5152S - Jul 9, 14:35 UTCJul 9, 15:45 UTC1h 10m
2026-07-08 N5152S - Jul 8, 01:45 UTCJul 8, 03:15 UTC1h 30m
2026-07-07 N5152S - Jul 7, 22:40 UTCJul 8, 00:10 UTC1h 30m
2026-07-07 N5152S - Jul 7, 01:35 UTCJul 7, 03:20 UTC1h 45m
2026-07-06 N5152S - Jul 6, 22:35 UTCJul 6, 23:30 UTC55m
2026-07-06 N5152S - Jul 6, 14:40 UTCJul 6, 15:35 UTC55m
2026-07-05 N5152S - Jul 5, 22:05 UTCJul 5, 22:45 UTC40m
2026-07-03 N5152S - Jul 3, 18:45 UTCJul 3, 19:30 UTC45m
2026-07-03 N5152S - Jul 3, 01:30 UTCJul 3, 02:55 UTC1h 25m
2026-07-02 N5152S - Jul 2, 14:55 UTCJul 2, 15:55 UTC1h 0m
2026-06-30 N5152S - Jun 30, 14:30 UTCJun 30, 15:45 UTC1h 15m
2026-06-27 N5152S - Jun 27, 23:34 UTCJun 28, 00:35 UTC1h 0m
2026-06-27 N5152S - Jun 27, 20:49 UTCJun 27, 21:25 UTC35m
2026-06-27 N5152S - Jun 27, 15:39 UTCJun 27, 15:45 UTC5m
2026-06-27 N5152S - Jun 27, 14:54 UTCJun 27, 15:30 UTC35m
2026-06-26 N5152S - Jun 26, 23:34 UTCJun 27, 00:50 UTC1h 15m
2026-06-26 N5152S - Jun 26, 21:10 UTCJun 26, 22:25 UTC1h 15m
2026-06-26 N5152S - Jun 26, 16:00 UTCJun 26, 18:04 UTC2h 5m
2026-06-26 N5152S - Jun 26, 00:05 UTCJun 26, 01:24 UTC1h 20m
2026-06-25 N5152S - Jun 25, 20:45 UTCJun 25, 22:34 UTC1h 50m
2026-06-25 N5152S - Jun 25, 17:05 UTCJun 25, 18:55 UTC1h 50m
2026-06-25 N5152S - Jun 25, 01:19 UTCJun 25, 02:49 UTC1h 30m
2026-06-24 N5152S - Jun 24, 22:19 UTCJun 24, 23:54 UTC1h 35m
2026-06-24 N5152S - Jun 24, 17:50 UTCJun 24, 19:04 UTC1h 15m
2026-06-23 N5152S - Jun 23, 19:10 UTCJun 23, 19:50 UTC40m
2026-06-23 N5152S - Jun 23, 16:59 UTCJun 23, 18:14 UTC1h 15m
2026-06-22 N5152S - Jun 22, 20:55 UTCJun 22, 21:35 UTC40m
2026-06-22 N5152S - Jun 22, 19:49 UTCJun 22, 20:24 UTC35m
2026-06-22 N5152S - Jun 22, 16:40 UTCJun 22, 18:04 UTC1h 25m
2026-06-22 N5152S - Jun 22, 15:50 UTCJun 22, 15:54 UTC5m
2026-06-22 N5152S - Jun 22, 15:35 UTCJun 22, 15:45 UTC10m
2026-06-22 N5152S - Jun 22, 14:49 UTCJun 22, 15:29 UTC40m

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 N5152S page for operator, model, and routing details .

Mode-S A676B1 frequently asked

What is Mode-S code A676B1?
A676B1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5152S.
Where is Mode-S A676B1 registered?
Mode-S code A676B1 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 A676B1 broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A676B1, octal 51473261, decimal 10,909,361.
What flights does A676B1 operate?
Mode-S A676B1 has broadcast 1 distinct callsign, including N5152S.