Apparatus

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sensors Mode-S transponder

AC1058

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N877AA · CESSNA 172 Skyhawk · operated by FLX FLYERS LLC

Hex
AC1058
Octal
53010130
Decimal
11,276,376
Country
US
Tail
N877AA
Type
C172
No current signal · last broadcast Jul 26, 20:45 UTC
Flights observed
230
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 20:45 UTC

Last known position

Most recent position reported by Mode-S AC1058.

Country allocation

The ICAO 24-bit address AC1058 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
N877AA - 230 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N877AA - Jul 26, 19:35 UTCJul 26, 20:45 UTC1h 10m
2026-07-26 N877AA - Jul 26, 17:50 UTCJul 26, 18:50 UTC1h 0m
2026-07-26 N877AA - Jul 26, 13:40 UTCJul 26, 15:00 UTC1h 20m
2026-07-26 N877AA - Jul 26, 01:45 UTCJul 26, 03:15 UTC1h 30m
2026-07-25 N877AA - Jul 25, 20:40 UTCJul 25, 21:00 UTC20m
2026-07-25 N877AA - Jul 25, 19:35 UTCJul 25, 20:05 UTC30m
2026-07-25 N877AA - Jul 25, 16:00 UTCJul 25, 17:40 UTC1h 40m
2026-07-25 N877AA - Jul 25, 13:50 UTCJul 25, 14:50 UTC1h 0m
2026-07-24 N877AA - Jul 24, 23:10 UTCJul 25, 00:10 UTC1h 0m
2026-07-24 N877AA - Jul 24, 19:45 UTCJul 24, 21:30 UTC1h 45m
2026-07-24 N877AA - Jul 24, 17:50 UTCJul 24, 19:00 UTC1h 10m
2026-07-24 N877AA - Jul 24, 15:40 UTCJul 24, 16:45 UTC1h 5m
2026-07-24 N877AA - Jul 24, 11:40 UTCJul 24, 12:55 UTC1h 15m
2026-07-23 N877AA - Jul 23, 19:35 UTCJul 23, 20:50 UTC1h 15m
2026-07-23 N877AA HPN → HPN Jul 23, 17:40 UTCJul 23, 18:55 UTC1h 15m
2026-07-23 N877AA - Jul 23, 15:35 UTCJul 23, 16:50 UTC1h 15m
2026-07-23 N877AA - Jul 23, 13:45 UTCJul 23, 14:50 UTC1h 5m
2026-07-23 N877AA - Jul 23, 12:10 UTCJul 23, 13:00 UTC50m
2026-07-22 N877AA HPN → HPN Jul 22, 17:40 UTCJul 22, 18:50 UTC1h 10m
2026-07-20 N877AA - Jul 20, 20:15 UTCJul 20, 21:55 UTC1h 40m
2026-07-20 N877AA - Jul 20, 17:45 UTCJul 20, 19:00 UTC1h 15m
2026-07-20 N877AA - Jul 20, 13:55 UTCJul 20, 15:00 UTC1h 5m
2026-07-20 N877AA - Jul 20, 11:40 UTCJul 20, 12:45 UTC1h 5m
2026-07-20 N877AA - Jul 20, 01:40 UTCJul 20, 03:10 UTC1h 30m
2026-07-19 N877AA - Jul 19, 20:00 UTCJul 19, 21:20 UTC1h 20m
2026-07-19 N877AA - Jul 19, 11:50 UTCJul 19, 12:50 UTC1h 0m
2026-07-15 N877AA HPN → HPN Jul 15, 21:35 UTCJul 15, 23:10 UTC1h 35m
2026-07-15 N877AA - Jul 15, 18:00 UTCJul 15, 19:10 UTC1h 10m
2026-07-15 N877AA - Jul 15, 15:45 UTCJul 15, 17:15 UTC1h 30m
2026-07-15 N877AA - Jul 15, 13:40 UTCJul 15, 14:55 UTC1h 15m
2026-07-14 N877AA - Jul 14, 21:55 UTCJul 14, 23:05 UTC1h 9m
2026-07-14 N877AA - Jul 14, 19:40 UTCJul 14, 20:50 UTC1h 10m
2026-07-14 N877AA - Jul 14, 15:40 UTCJul 14, 17:00 UTC1h 20m
2026-07-14 N877AA - Jul 14, 11:55 UTCJul 14, 12:40 UTC45m
2026-07-14 N877AA - Jul 14, 02:45 UTCJul 14, 04:05 UTC1h 20m
2026-07-14 N877AA HPN → HPN Jul 14, 01:25 UTCJul 14, 02:10 UTC45m
2026-07-13 N877AA - Jul 13, 20:15 UTCJul 13, 20:45 UTC30m
2026-07-13 N877AA - Jul 13, 18:05 UTCJul 13, 18:55 UTC50m
2026-07-13 N877AA - Jul 13, 15:40 UTCJul 13, 16:50 UTC1h 10m
2026-07-13 N877AA - Jul 13, 14:15 UTCJul 13, 14:35 UTC20m
2026-07-13 N877AA - Jul 13, 12:55 UTCJul 13, 13:20 UTC25m
2026-07-13 N877AA - Jul 13, 02:25 UTCJul 13, 02:45 UTC20m
2026-07-13 N877AA - Jul 13, 00:35 UTCJul 13, 02:10 UTC1h 35m
2026-07-12 N877AA - Jul 12, 18:30 UTCJul 12, 20:01 UTC1h 30m
2026-07-12 N877AA - Jul 12, 14:01 UTCJul 12, 16:10 UTC2h 10m
2026-07-12 N877AA - Jul 12, 12:10 UTCJul 12, 12:50 UTC40m
2026-07-10 N877AA - Jul 10, 21:20 UTCJul 10, 21:50 UTC30m
2026-07-10 N877AA - Jul 10, 15:35 UTCJul 10, 16:10 UTC35m
2026-07-10 N877AA - Jul 10, 13:40 UTCJul 10, 15:00 UTC1h 20m
2026-07-10 N877AA - Jul 10, 11:50 UTCJul 10, 12:50 UTC1h 0m

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 N877AA page for operator, model, and routing details .

Mode-S AC1058 frequently asked

What is Mode-S code AC1058?
AC1058 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N877AA.
Where is Mode-S AC1058 registered?
Mode-S code AC1058 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 AC1058 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC1058, octal 53010130, decimal 11,276,376.
What flights does AC1058 operate?
Mode-S AC1058 has broadcast 1 distinct callsign, including N877AA.