Apparatus

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sensors Mode-S transponder

A4111B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N361ME · operated by N361ME LLC

Hex
A4111B
Octal
51010433
Decimal
10,752,283
Country
US
Tail
N361ME
Type
P28A
No current signal · last broadcast 2h ago
Flights observed
166
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A4111B.

Country allocation

The ICAO 24-bit address A4111B 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
N361ME - 166 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-19 N361ME - Jun 19, 04:04 UTCJun 19, 04:44 UTC40m
2026-06-18 N361ME PVU → PVU Jun 18, 21:05 UTCJun 18, 22:25 UTC1h 20m
2026-06-17 N361ME PVU → PVU Jun 17, 16:30 UTCJun 17, 17:40 UTC1h 10m
2026-06-17 N361ME PVU → PVU Jun 17, 14:40 UTCJun 17, 15:55 UTC1h 15m
2026-06-16 N361ME - Jun 16, 21:30 UTCJun 16, 21:55 UTC25m
2026-06-16 N361ME - Jun 16, 20:40 UTCJun 16, 20:55 UTC15m
2026-06-16 N361ME - Jun 16, 18:35 UTCJun 16, 18:55 UTC20m
2026-06-16 N361ME - Jun 16, 16:50 UTCJun 16, 18:05 UTC1h 15m
2026-06-16 N361ME - Jun 16, 13:00 UTCJun 16, 13:19 UTC20m
2026-06-15 N361ME - Jun 15, 16:55 UTCJun 15, 18:45 UTC1h 50m
2026-06-13 N361ME PVU → PVU Jun 13, 18:05 UTCJun 13, 20:55 UTC2h 50m
2026-06-13 N361ME PVU → PVU Jun 13, 15:30 UTCJun 13, 17:05 UTC1h 35m
2026-06-12 N361ME - Jun 12, 23:20 UTCJun 12, 23:45 UTC25m
2026-06-12 N361ME - Jun 12, 21:20 UTCJun 12, 21:45 UTC25m
2026-06-12 N361ME - Jun 12, 17:00 UTCJun 12, 18:35 UTC1h 35m
2026-06-12 N361ME - Jun 12, 14:45 UTCJun 12, 15:30 UTC45m
2026-06-12 N361ME PVU → PVU Jun 12, 04:05 UTCJun 12, 04:50 UTC45m
2026-06-11 N361ME - Jun 11, 21:50 UTCJun 11, 23:00 UTC1h 10m
2026-06-11 N361ME PVU → PVU Jun 11, 14:00 UTCJun 11, 14:35 UTC35m
2026-06-10 N361ME PVU → PVU Jun 10, 23:30 UTCJun 11, 00:05 UTC35m
2026-06-10 N361ME PVU → PVU Jun 10, 16:50 UTCJun 10, 17:55 UTC1h 5m
2026-06-10 N361ME - Jun 10, 14:40 UTCJun 10, 15:35 UTC55m
2026-06-10 N361ME PVU → PVU Jun 10, 12:50 UTCJun 10, 13:45 UTC55m
2026-06-10 N361ME - Jun 10, 00:25 UTCJun 10, 01:25 UTC1h 0m
2026-06-08 N361ME - Jun 8, 20:25 UTCJun 8, 20:50 UTC25m
2026-06-07 N361ME - Jun 7, 17:00 UTCJun 7, 17:25 UTC25m
2026-06-06 N361ME - Jun 6, 19:40 UTCJun 6, 21:09 UTC1h 30m
2026-06-06 N361ME - Jun 6, 18:04 UTCJun 6, 18:19 UTC15m
2026-06-06 N361ME - Jun 6, 13:44 UTCJun 6, 15:05 UTC1h 20m
2026-06-05 N361ME - Jun 5, 23:05 UTCJun 6, 00:05 UTC1h 0m
2026-06-05 N361ME - Jun 5, 16:40 UTCJun 5, 17:45 UTC1h 5m
2026-06-05 N361ME - Jun 5, 14:05 UTCJun 5, 14:45 UTC40m
2026-06-05 N361ME - Jun 5, 01:50 UTCJun 5, 03:25 UTC1h 35m
2026-06-05 N361ME - Jun 5, 00:15 UTCJun 5, 01:05 UTC50m
2026-06-04 N361ME PVU → PVU Jun 4, 16:25 UTCJun 4, 18:05 UTC1h 40m
2026-06-04 N361ME PVU → PVU Jun 4, 14:40 UTCJun 4, 15:45 UTC1h 5m
2026-06-04 N361ME - Jun 4, 06:00 UTCJun 4, 06:55 UTC55m
2026-06-04 N361ME - Jun 4, 04:00 UTCJun 4, 05:15 UTC1h 15m
2026-06-04 N361ME - Jun 4, 01:40 UTCJun 4, 02:00 UTC20m
2026-06-04 N361ME - Jun 4, 00:40 UTCJun 4, 01:00 UTC20m
2026-06-03 N361ME - Jun 3, 18:05 UTCJun 3, 19:40 UTC1h 35m
2026-06-03 N361ME - Jun 3, 15:40 UTCJun 3, 16:30 UTC50m
2026-06-03 N361ME - Jun 3, 13:40 UTCJun 3, 14:05 UTC25m
2026-06-03 N361ME - Jun 3, 12:35 UTCJun 3, 13:05 UTC30m
2026-06-03 N361ME PVU → PVU Jun 3, 01:20 UTCJun 3, 02:45 UTC1h 25m
2026-06-02 N361ME - Jun 2, 17:15 UTCJun 2, 17:35 UTC20m
2026-06-02 N361ME - Jun 2, 15:30 UTCJun 2, 15:45 UTC15m
2026-06-02 N361ME PVU → PVU Jun 2, 12:30 UTCJun 2, 13:50 UTC1h 20m
2026-06-02 N361ME - Jun 2, 00:20 UTCJun 2, 00:55 UTC35m
2026-06-01 N361ME - Jun 1, 18:35 UTCJun 1, 19:05 UTC30m

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 N361ME page for operator, model, and routing details .

Mode-S A4111B frequently asked

What is Mode-S code A4111B?
A4111B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N361ME.
Where is Mode-S A4111B registered?
Mode-S code A4111B 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 A4111B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4111B, octal 51010433, decimal 10,752,283.
What flights does A4111B operate?
Mode-S A4111B has broadcast 1 distinct callsign, including N361ME.