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sensors Mode-S transponder

AD2138

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N945RF · BELL 407 · operated by SNACKBAR AVIATION LLC

Hex
AD2138
Octal
53220470
Decimal
11,346,232
Country
US
Tail
N945RF
Type
B407
Broadcasting now · callsign N945RF · 800 ft
Flights observed
182
Distinct callsigns
1
Country
US
Last broadcast
49m ago

Current position

AD2138 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD2138 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
N945RF - 182 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 N945RF - Jul 18, 01:30 UTCJul 18, 02:00 UTC30m
2026-07-17 N945RF - Jul 17, 13:55 UTCJul 17, 16:29 UTC2h 35m
2026-07-16 N945RF JRA → CDW Jul 16, 22:45 UTCJul 16, 22:59 UTC15m
2026-07-16 N945RF JRB → JRB Jul 16, 19:30 UTCJul 16, 20:55 UTC1h 25m
2026-07-16 N945RF - Jul 16, 13:49 UTCJul 16, 16:44 UTC2h 55m
2026-07-14 N945RF - Jul 14, 16:55 UTCJul 14, 22:35 UTC5h 40m
2026-07-13 N945RF - Jul 13, 19:20 UTCJul 13, 23:10 UTC3h 50m
2026-07-05 N945RF - Jul 5, 22:55 UTCJul 6, 00:50 UTC1h 55m
2026-07-05 N945RF - Jul 5, 18:05 UTCJul 5, 19:05 UTC1h 0m
2026-07-05 N945RF - Jul 5, 17:10 UTCJul 5, 17:40 UTC30m
2026-07-04 N945RF JRB → CDW Jul 4, 20:50 UTCJul 4, 22:55 UTC2h 5m
2026-07-04 N945RF JRB → JRB Jul 4, 19:50 UTCJul 4, 20:15 UTC25m
2026-07-04 N945RF - Jul 4, 17:50 UTCJul 4, 19:45 UTC1h 55m
2026-07-04 N945RF - Jul 4, 17:25 UTCJul 4, 17:45 UTC20m
2026-07-04 N945RF - Jul 4, 16:40 UTCJul 4, 17:15 UTC35m
2026-07-03 N945RF - Jul 3, 15:55 UTCJul 3, 16:25 UTC30m
2026-07-02 N945RF - Jul 2, 13:45 UTCJul 2, 17:15 UTC3h 30m
2026-07-01 N945RF - Jul 1, 19:10 UTCJul 1, 21:15 UTC2h 5m
2026-07-01 N945RF JRB → JRB Jul 1, 17:50 UTCJul 1, 18:20 UTC30m
2026-07-01 N945RF JRB → JRB Jul 1, 16:20 UTCJul 1, 16:55 UTC35m
2026-07-01 N945RF - Jul 1, 15:50 UTCJul 1, 16:15 UTC25m
2026-06-30 N945RF JRB → CDW Jun 30, 21:15 UTCJun 30, 22:05 UTC50m
2026-06-30 N945RF JRB → JRB Jun 30, 20:05 UTCJun 30, 20:25 UTC20m
2026-06-30 N945RF JRA → JRB Jun 30, 17:20 UTCJun 30, 18:55 UTC1h 35m
2026-06-30 N945RF - Jun 30, 15:20 UTCJun 30, 16:30 UTC1h 10m
2026-06-30 N945RF JRA → CDW Jun 30, 00:55 UTCJun 30, 01:04 UTC10m
2026-06-29 N945RF - Jun 29, 23:54 UTCJun 30, 00:49 UTC55m
2026-06-29 N945RF - Jun 29, 21:50 UTCJun 29, 22:19 UTC30m
2026-06-28 N945RF - Jun 28, 19:09 UTCJun 28, 19:40 UTC30m
2026-06-27 N945RF - Jun 27, 20:19 UTCJun 27, 23:29 UTC3h 10m
2026-06-27 N945RF - Jun 27, 16:59 UTCJun 27, 18:54 UTC1h 55m
2026-06-26 N945RF - Jun 26, 15:49 UTCJun 26, 23:00 UTC7h 10m
2026-06-25 N945RF - Jun 25, 21:40 UTCJun 25, 22:39 UTC1h 0m
2026-06-25 N945RF JRB → JRB Jun 25, 19:05 UTCJun 25, 20:49 UTC1h 45m
2026-06-25 N945RF - Jun 25, 15:50 UTCJun 25, 17:30 UTC1h 40m
2026-06-24 N945RF CDW → CDW Jun 24, 16:54 UTCJun 24, 22:45 UTC5h 50m
2026-06-24 N945RF - Jun 24, 14:09 UTCJun 24, 15:29 UTC1h 20m
2026-06-24 N945RF - Jun 24, 12:34 UTCJun 24, 13:00 UTC25m
2026-06-23 N945RF - Jun 23, 18:50 UTCJun 23, 21:59 UTC3h 10m
2026-06-22 N945RF JRB → CDW Jun 22, 16:29 UTCJun 22, 18:19 UTC1h 50m
2026-06-22 N945RF - Jun 22, 13:49 UTCJun 22, 15:45 UTC1h 55m
2026-06-20 N945RF - Jun 20, 19:09 UTCJun 20, 22:35 UTC3h 25m
2026-06-20 N945RF JRB → JRB Jun 20, 17:29 UTCJun 20, 17:54 UTC25m
2026-06-20 N945RF JRB → JRB Jun 20, 16:19 UTCJun 20, 16:34 UTC15m
2026-06-20 N945RF - Jun 20, 13:49 UTCJun 20, 16:14 UTC2h 25m
2026-06-19 N945RF - Jun 19, 21:09 UTCJun 19, 23:04 UTC1h 55m
2026-06-19 N945RF CDW → JRB Jun 19, 15:19 UTCJun 19, 20:04 UTC4h 45m
2026-06-17 N945RF - Jun 17, 13:50 UTCJun 17, 22:30 UTC8h 40m
2026-06-16 N945RF - Jun 16, 14:20 UTCJun 16, 17:40 UTC3h 20m
2026-06-15 N945RF - Jun 15, 20:40 UTCJun 15, 22:59 UTC2h 20m

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 N945RF page for operator, model, and routing details .

Mode-S AD2138 frequently asked

What is Mode-S code AD2138?
AD2138 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N945RF.
Where is Mode-S AD2138 registered?
Mode-S code AD2138 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 AD2138 broadcasting right now?
Yes. Mode-S AD2138 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2138, octal 53220470, decimal 11,346,232.
What flights does AD2138 operate?
Mode-S AD2138 has broadcast 1 distinct callsign, including N945RF.