sensors Mode-S transponder

A4F210

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N418CF · BELL 407 · operated by CAREFLITE

Hex
A4F210
Octal
51171020
Decimal
10,809,872
Country
US
Tail
N418CF
Type
B407
No current signal · last broadcast 1d ago
Flights observed
123
Distinct callsigns
2
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A4F210.

Country allocation

The ICAO 24-bit address A4F210 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 2 distinct

Callsign Airline Flights Last seen
N418CF - 122 2026-06-09
C EK CR - 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-09 N418CF - Jun 9, 02:00 UTCJun 9, 02:15 UTC15m
2026-06-09 N418CF - Jun 9, 00:55 UTCJun 9, 01:15 UTC20m
2026-06-08 N418CF - Jun 8, 23:35 UTCJun 9, 00:15 UTC40m
2026-06-08 N418CF - Jun 8, 22:45 UTCJun 8, 23:05 UTC20m
2026-06-07 N418CF - Jun 7, 21:30 UTCJun 7, 22:30 UTC1h 0m
2026-06-07 N418CF - Jun 7, 17:00 UTCJun 7, 17:20 UTC20m
2026-06-07 N418CF - Jun 7, 15:50 UTCJun 7, 16:25 UTC35m
2026-06-04 N418CF - Jun 4, 03:10 UTCJun 4, 04:40 UTC1h 30m
2026-06-03 N418CF - Jun 3, 23:45 UTCJun 4, 00:00 UTC15m
2026-06-03 N418CF - Jun 3, 22:55 UTCJun 3, 23:10 UTC15m
2026-06-03 N418CF - Jun 3, 09:15 UTCJun 3, 09:35 UTC20m
2026-06-03 N418CF - Jun 3, 08:05 UTCJun 3, 08:30 UTC25m
2026-06-03 N418CF - Jun 3, 07:15 UTCJun 3, 07:25 UTC10m
2026-06-02 N418CF - Jun 2, 04:40 UTCJun 2, 05:05 UTC25m
2026-06-02 N418CF - Jun 2, 03:00 UTCJun 2, 04:05 UTC1h 5m
2026-06-01 N418CF - Jun 1, 16:00 UTCJun 1, 16:15 UTC15m
2026-06-01 N418CF - Jun 1, 15:00 UTCJun 1, 15:15 UTC15m
2026-05-31 N418CF - May 31, 22:40 UTCMay 31, 23:25 UTC45m
2026-05-31 N418CF - May 31, 21:35 UTCMay 31, 21:55 UTC20m
2026-05-31 N418CF - May 31, 14:50 UTCMay 31, 15:45 UTC55m
2026-05-30 N418CF - May 30, 02:35 UTCMay 30, 02:55 UTC20m
2026-05-30 N418CF - May 30, 01:25 UTCMay 30, 01:50 UTC25m
2026-05-29 N418CF - May 29, 20:35 UTCMay 29, 20:50 UTC15m
2026-05-29 N418CF - May 29, 19:30 UTCMay 29, 19:50 UTC20m
2026-05-28 N418CF - May 28, 02:10 UTCMay 28, 02:30 UTC20m
2026-05-28 N418CF - May 28, 01:05 UTCMay 28, 01:25 UTC20m
2026-05-28 N418CF - May 28, 00:00 UTCMay 28, 00:30 UTC30m
2026-05-26 N418CF - May 26, 16:55 UTCMay 26, 17:05 UTC10m
2026-05-26 N418CF - May 26, 15:09 UTCMay 26, 15:35 UTC25m
2026-05-26 N418CF - May 26, 13:40 UTCMay 26, 13:54 UTC15m
2026-05-26 N418CF - May 26, 12:10 UTCMay 26, 12:20 UTC10m
2026-05-25 N418CF - May 25, 23:19 UTCMay 25, 23:35 UTC15m
2026-05-25 N418CF - May 25, 22:19 UTCMay 25, 22:34 UTC15m
2026-05-25 N418CF - May 25, 21:24 UTCMay 25, 21:45 UTC20m
2026-05-24 N418CF - May 24, 11:10 UTCMay 24, 11:55 UTC45m
2026-05-24 N418CF - May 24, 09:05 UTCMay 24, 10:00 UTC55m
2026-05-24 N418CF - May 24, 05:50 UTCMay 24, 06:10 UTC20m
2026-05-24 N418CF - May 24, 05:15 UTCMay 24, 05:25 UTC10m
2026-05-24 N418CF - May 24, 04:05 UTCMay 24, 04:35 UTC30m
2026-05-23 N418CF - May 23, 18:15 UTCMay 23, 18:35 UTC20m
2026-05-23 N418CF - May 23, 17:05 UTCMay 23, 17:25 UTC20m
2026-05-23 N418CF - May 23, 01:30 UTCMay 23, 01:50 UTC20m
2026-05-22 N418CF - May 22, 23:40 UTCMay 23, 00:35 UTC55m
2026-05-22 N418CF - May 22, 21:50 UTCMay 22, 22:10 UTC20m
2026-05-22 N418CF - May 22, 16:10 UTCMay 22, 16:30 UTC20m
2026-05-22 N418CF - May 22, 15:05 UTCMay 22, 15:25 UTC20m
2026-05-20 N418CF - May 20, 18:05 UTCMay 20, 18:25 UTC20m
2026-05-20 N418CF - May 20, 17:10 UTCMay 20, 17:35 UTC25m
2026-05-19 N418CF - May 19, 04:25 UTCMay 19, 04:45 UTC20m
2026-05-19 N418CF - May 19, 02:50 UTCMay 19, 03:30 UTC40m

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 N418CF page for operator, model, and routing details .

Mode-S A4F210 frequently asked

What is Mode-S code A4F210?
A4F210 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N418CF.
Where is Mode-S A4F210 registered?
Mode-S code A4F210 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 A4F210 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4F210, octal 51171020, decimal 10,809,872.
What flights does A4F210 operate?
Mode-S A4F210 has broadcast 2 distinct callsigns, including N418CF, C EK CR.