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sensors Mode-S transponder

AA8548

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N777ZA · BELL 407 · operated by 777ZA LLC

Hex
AA8548
Octal
52502510
Decimal
11,175,240
Country
US
Tail
N777ZA
Type
B407
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
356
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S AA8548.

Country allocation

The ICAO 24-bit address AA8548 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
N777ZA - 356 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N777ZA - Jul 26, 21:30 UTCJul 26, 21:55 UTC25m
2026-07-26 N777ZA - Jul 26, 20:55 UTCJul 26, 21:25 UTC30m
2026-07-26 N777ZA - Jul 26, 18:45 UTCJul 26, 18:55 UTC10m
2026-07-25 N777ZA - Jul 25, 23:25 UTCJul 25, 23:50 UTC25m
2026-07-25 N777ZA JRB → CDW Jul 25, 21:35 UTCJul 25, 22:20 UTC45m
2026-07-25 N777ZA JRA → JRB Jul 25, 20:15 UTCJul 25, 20:30 UTC15m
2026-07-25 N777ZA - Jul 25, 19:20 UTCJul 25, 20:10 UTC50m
2026-07-25 N777ZA JRB → JRB Jul 25, 17:30 UTCJul 25, 18:35 UTC1h 5m
2026-07-25 N777ZA - Jul 25, 13:50 UTCJul 25, 16:15 UTC2h 25m
2026-07-25 N777ZA - Jul 25, 00:30 UTCJul 25, 01:20 UTC50m
2026-07-24 N777ZA - Jul 24, 22:40 UTCJul 25, 00:00 UTC1h 20m
2026-07-24 N777ZA JRB → TSS Jul 24, 20:05 UTCJul 24, 22:20 UTC2h 15m
2026-07-24 N777ZA - Jul 24, 17:20 UTCJul 24, 20:00 UTC2h 40m
2026-07-24 N777ZA - Jul 24, 00:25 UTCJul 24, 01:15 UTC50m
2026-07-23 N777ZA - Jul 23, 22:40 UTCJul 23, 23:30 UTC50m
2026-07-23 N777ZA - Jul 23, 21:55 UTCJul 23, 22:25 UTC30m
2026-07-23 N777ZA JRA → WSH Jul 23, 19:20 UTCJul 23, 21:05 UTC1h 45m
2026-07-23 N777ZA - Jul 23, 15:45 UTCJul 23, 16:30 UTC45m
2026-07-23 N777ZA - Jul 23, 12:50 UTCJul 23, 13:20 UTC30m
2026-07-22 N777ZA JRB → CDW Jul 22, 20:25 UTCJul 22, 21:30 UTC1h 5m
2026-07-22 N777ZA - Jul 22, 18:35 UTCJul 22, 20:15 UTC1h 40m
2026-07-22 N777ZA JRB → JRB Jul 22, 18:00 UTCJul 22, 18:25 UTC25m
2026-07-22 N777ZA CDW → JRB Jul 22, 13:45 UTCJul 22, 17:05 UTC3h 20m
2026-07-21 N777ZA - Jul 21, 00:05 UTCJul 21, 01:45 UTC1h 40m
2026-07-20 N777ZA JRB → CDW Jul 20, 19:40 UTCJul 20, 22:30 UTC2h 50m
2026-07-20 N777ZA - Jul 20, 13:55 UTCJul 20, 18:45 UTC4h 50m
2026-07-20 N777ZA - Jul 20, 11:20 UTCJul 20, 12:50 UTC1h 30m
2026-07-20 N777ZA - Jul 20, 02:40 UTCJul 20, 03:00 UTC20m
2026-07-20 N777ZA - Jul 20, 00:45 UTCJul 20, 01:05 UTC20m
2026-07-19 N777ZA - Jul 19, 13:10 UTCJul 19, 17:25 UTC4h 15m
2026-07-18 N777ZA - Jul 18, 17:00 UTCJul 18, 17:10 UTC10m
2026-07-18 N777ZA - Jul 18, 15:05 UTCJul 18, 15:15 UTC10m
2026-07-18 N777ZA - Jul 18, 13:50 UTCJul 18, 15:00 UTC1h 10m
2026-07-18 N777ZA - Jul 18, 01:05 UTCJul 18, 01:30 UTC25m
2026-07-17 N777ZA - Jul 17, 15:49 UTCJul 17, 16:40 UTC50m
2026-07-17 N777ZA - Jul 17, 13:55 UTCJul 17, 15:10 UTC1h 15m
2026-07-16 N777ZA - Jul 16, 16:55 UTCJul 16, 21:30 UTC4h 35m
2026-07-16 N777ZA EWR → TSS Jul 16, 16:30 UTCJul 16, 16:44 UTC15m
2026-07-16 N777ZA - Jul 16, 14:35 UTCJul 16, 16:00 UTC1h 25m
2026-07-15 N777ZA JRA → CDW Jul 15, 22:05 UTCJul 16, 00:20 UTC2h 15m
2026-07-15 N777ZA - Jul 15, 17:50 UTCJul 15, 19:20 UTC1h 30m
2026-07-15 N777ZA - Jul 15, 01:50 UTCJul 15, 02:15 UTC25m
2026-07-15 N777ZA - Jul 15, 00:25 UTCJul 15, 00:45 UTC20m
2026-07-14 N777ZA - Jul 14, 23:00 UTCJul 14, 23:50 UTC50m
2026-07-14 N777ZA - Jul 14, 21:30 UTCJul 14, 22:25 UTC55m
2026-07-14 N777ZA - Jul 14, 18:50 UTCJul 14, 19:45 UTC55m
2026-07-14 N777ZA - Jul 14, 17:20 UTCJul 14, 17:50 UTC30m
2026-07-14 N777ZA - Jul 14, 16:20 UTCJul 14, 16:30 UTC10m
2026-07-14 N777ZA - Jul 14, 13:40 UTCJul 14, 14:45 UTC1h 5m
2026-07-14 N777ZA - Jul 14, 11:00 UTCJul 14, 11:35 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 N777ZA page for operator, model, and routing details .

Mode-S AA8548 frequently asked

What is Mode-S code AA8548?
AA8548 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N777ZA.
Where is Mode-S AA8548 registered?
Mode-S code AA8548 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 AA8548 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA8548, octal 52502510, decimal 11,175,240.
What flights does AA8548 operate?
Mode-S AA8548 has broadcast 1 distinct callsign, including N777ZA.