Apparatus

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sensors Mode-S transponder

A618B6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N492ND · PIPER PA-44 Seminole · operated by CHRISTIANSEN AVIATION LLC

Hex
A618B6
Octal
51414266
Decimal
10,885,302
Country
US
Tail
N492ND
Type
PA44
Broadcasting now · callsign N492ND · 700 ft
Flights observed
121
Distinct callsigns
1
Country
US
Last broadcast
49m ago

Current position

A618B6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A618B6 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
N492ND - 121 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 N492ND - Jun 26, 16:54 UTCJun 26, 17:29 UTC35m
2026-06-25 N492ND - Jun 25, 21:29 UTCJun 25, 22:45 UTC1h 15m
2026-06-25 N492ND - Jun 25, 18:04 UTCJun 25, 19:49 UTC1h 45m
2026-06-25 N492ND - Jun 25, 14:55 UTCJun 25, 15:34 UTC40m
2026-06-25 N492ND - Jun 25, 13:00 UTCJun 25, 13:40 UTC40m
2026-06-24 N492ND - Jun 24, 21:04 UTCJun 24, 22:25 UTC1h 20m
2026-06-24 N492ND - Jun 24, 16:54 UTCJun 24, 19:04 UTC2h 10m
2026-06-23 N492ND - Jun 23, 15:24 UTCJun 23, 17:54 UTC2h 30m
2026-06-23 N492ND - Jun 23, 11:40 UTCJun 23, 13:39 UTC2h 0m
2026-06-22 N492ND - Jun 22, 21:25 UTCJun 22, 22:59 UTC1h 35m
2026-06-22 N492ND - Jun 22, 17:15 UTCJun 22, 19:40 UTC2h 25m
2026-06-22 N492ND - Jun 22, 13:54 UTCJun 22, 14:45 UTC50m
2026-06-22 N492ND - Jun 22, 12:34 UTCJun 22, 13:14 UTC40m
2026-06-18 N492ND - Jun 18, 17:00 UTCJun 18, 17:50 UTC50m
2026-06-18 N492ND - Jun 18, 13:25 UTCJun 18, 15:00 UTC1h 35m
2026-06-17 N492ND - Jun 17, 15:46 UTCJun 17, 17:10 UTC1h 25m
2026-06-16 N492ND - Jun 16, 13:50 UTCJun 16, 14:30 UTC40m
2026-06-16 N492ND - Jun 16, 12:30 UTCJun 16, 13:09 UTC40m
2026-06-15 N492ND - Jun 15, 19:00 UTCJun 15, 20:20 UTC1h 20m
2026-06-15 N492ND - Jun 15, 15:45 UTCJun 15, 16:19 UTC35m
2026-06-15 N492ND - Jun 15, 14:05 UTCJun 15, 15:04 UTC1h 0m
2026-06-13 N492ND - Jun 13, 15:55 UTCJun 13, 19:35 UTC3h 40m
2026-06-12 N492ND - Jun 12, 19:40 UTCJun 12, 20:10 UTC30m
2026-06-12 N492ND - Jun 12, 14:15 UTCJun 12, 14:45 UTC30m
2026-06-12 N492ND - Jun 12, 11:40 UTCJun 12, 13:20 UTC1h 40m
2026-06-11 N492ND - Jun 11, 19:10 UTCJun 11, 19:35 UTC25m
2026-06-11 N492ND - Jun 11, 15:50 UTCJun 11, 17:40 UTC1h 50m
2026-06-11 N492ND - Jun 11, 11:30 UTCJun 11, 14:00 UTC2h 30m
2026-06-10 N492ND - Jun 10, 20:50 UTCJun 10, 21:10 UTC20m
2026-06-10 N492ND - Jun 10, 16:50 UTCJun 10, 18:10 UTC1h 20m
2026-06-10 N492ND - Jun 10, 13:35 UTCJun 10, 15:05 UTC1h 30m
2026-06-09 N492ND - Jun 9, 18:55 UTCJun 9, 20:30 UTC1h 35m
2026-06-09 N492ND - Jun 9, 13:50 UTCJun 9, 15:50 UTC2h 0m
2026-06-08 N492ND - Jun 8, 21:40 UTCJun 8, 21:50 UTC10m
2026-06-08 N492ND - Jun 8, 20:00 UTCJun 8, 21:25 UTC1h 25m
2026-06-08 N492ND - Jun 8, 14:05 UTCJun 8, 16:45 UTC2h 40m
2026-06-07 N492ND - Jun 7, 19:35 UTCJun 7, 20:40 UTC1h 5m
2026-06-06 N492ND - Jun 6, 21:44 UTCJun 6, 23:15 UTC1h 30m
2026-06-06 N492ND - Jun 6, 14:45 UTCJun 6, 16:50 UTC2h 5m
2026-06-05 N492ND - Jun 5, 22:00 UTCJun 5, 22:30 UTC30m
2026-06-05 N492ND - Jun 5, 15:30 UTCJun 5, 16:00 UTC30m
2026-06-04 N492ND - Jun 4, 17:25 UTCJun 4, 18:15 UTC50m
2026-06-04 N492ND - Jun 4, 14:05 UTCJun 4, 15:40 UTC1h 35m
2026-06-03 N492ND - Jun 3, 17:35 UTCJun 3, 19:15 UTC1h 40m
2026-06-03 N492ND - Jun 3, 13:45 UTCJun 3, 16:10 UTC2h 25m
2026-06-02 N492ND - Jun 2, 13:45 UTCJun 2, 16:15 UTC2h 30m
2026-06-01 N492ND - Jun 1, 18:00 UTCJun 1, 19:55 UTC1h 55m
2026-06-01 N492ND - Jun 1, 13:40 UTCJun 1, 14:40 UTC1h 0m
2026-05-30 N492ND - May 30, 17:45 UTCMay 30, 18:40 UTC55m
2026-05-29 N492ND - May 29, 20:35 UTCMay 29, 20:50 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 N492ND page for operator, model, and routing details .

Mode-S A618B6 frequently asked

What is Mode-S code A618B6?
A618B6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N492ND.
Where is Mode-S A618B6 registered?
Mode-S code A618B6 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 A618B6 broadcasting right now?
Yes. Mode-S A618B6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A618B6, octal 51414266, decimal 10,885,302.
What flights does A618B6 operate?
Mode-S A618B6 has broadcast 1 distinct callsign, including N492ND.