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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 9d ago
Flights observed
228
Distinct callsigns
2
Country
US
Last broadcast
9d 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 - 227 2026-07-25
C EK CR - 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N418CF - Jul 25, 08:55 UTCJul 25, 10:30 UTC1h 35m
2026-07-24 N418CF - Jul 24, 18:30 UTCJul 24, 18:50 UTC20m
2026-07-24 N418CF - Jul 24, 16:10 UTCJul 24, 16:30 UTC20m
2026-07-24 N418CF - Jul 24, 02:35 UTCJul 24, 03:25 UTC50m
2026-07-23 N418CF - Jul 23, 20:30 UTCJul 23, 20:50 UTC20m
2026-07-23 N418CF - Jul 23, 19:10 UTCJul 23, 19:40 UTC30m
2026-07-23 N418CF - Jul 23, 17:10 UTCJul 23, 17:25 UTC15m
2026-07-23 N418CF - Jul 23, 16:20 UTCJul 23, 16:40 UTC20m
2026-07-22 N418CF - Jul 22, 12:40 UTCJul 22, 12:55 UTC15m
2026-07-22 N418CF - Jul 22, 11:50 UTCJul 22, 12:05 UTC15m
2026-07-22 N418CF - Jul 22, 02:55 UTCJul 22, 03:15 UTC20m
2026-07-22 N418CF - Jul 22, 01:25 UTCJul 22, 02:05 UTC40m
2026-07-21 N418CF - Jul 21, 03:50 UTCJul 21, 04:05 UTC15m
2026-07-21 N418CF - Jul 21, 02:45 UTCJul 21, 03:00 UTC15m
2026-07-20 N418CF - Jul 20, 23:00 UTCJul 20, 23:20 UTC20m
2026-07-20 N418CF - Jul 20, 21:40 UTCJul 20, 22:15 UTC35m
2026-07-20 N418CF - Jul 20, 20:50 UTCJul 20, 21:05 UTC15m
2026-07-20 N418CF - Jul 20, 02:40 UTCJul 20, 03:05 UTC25m
2026-07-19 N418CF - Jul 19, 00:25 UTCJul 19, 00:45 UTC20m
2026-07-18 N418CF - Jul 18, 23:15 UTCJul 18, 23:55 UTC40m
2026-07-18 N418CF - Jul 18, 20:25 UTCJul 18, 20:45 UTC20m
2026-07-18 N418CF - Jul 18, 19:25 UTCJul 18, 19:45 UTC20m
2026-07-18 N418CF - Jul 18, 02:29 UTCJul 18, 02:45 UTC15m
2026-07-18 N418CF - Jul 18, 01:39 UTCJul 18, 02:00 UTC20m
2026-07-17 N418CF - Jul 17, 23:39 UTCJul 17, 23:55 UTC15m
2026-07-17 N418CF - Jul 17, 22:15 UTCJul 17, 22:29 UTC15m
2026-07-17 N418CF - Jul 17, 21:34 UTCJul 17, 21:44 UTC10m
2026-07-17 N418CF - Jul 17, 17:40 UTCJul 17, 18:00 UTC20m
2026-07-13 N418CF - Jul 13, 18:50 UTCJul 13, 19:50 UTC1h 0m
2026-07-11 N418CF - Jul 11, 06:55 UTCJul 11, 07:10 UTC15m
2026-07-11 N418CF - Jul 11, 05:55 UTCJul 11, 06:05 UTC10m
2026-07-11 N418CF - Jul 11, 05:05 UTCJul 11, 05:15 UTC10m
2026-07-10 N418CF - Jul 10, 08:30 UTCJul 10, 08:50 UTC20m
2026-07-09 N418CF - Jul 9, 05:40 UTCJul 9, 06:00 UTC20m
2026-07-09 N418CF - Jul 9, 04:45 UTCJul 9, 05:05 UTC20m
2026-07-08 N418CF - Jul 8, 17:40 UTCJul 8, 18:00 UTC20m
2026-07-08 N418CF - Jul 8, 16:30 UTCJul 8, 17:10 UTC40m
2026-07-07 N418CF - Jul 7, 03:05 UTCJul 7, 03:25 UTC20m
2026-07-07 N418CF - Jul 7, 01:20 UTCJul 7, 02:10 UTC50m
2026-07-04 N418CF - Jul 4, 18:30 UTCJul 4, 18:45 UTC15m
2026-07-04 N418CF - Jul 4, 17:35 UTCJul 4, 17:55 UTC20m
2026-07-04 N418CF - Jul 4, 11:50 UTCJul 4, 12:15 UTC25m
2026-07-04 N418CF - Jul 4, 09:50 UTCJul 4, 10:50 UTC1h 0m
2026-07-04 N418CF - Jul 4, 05:15 UTCJul 4, 05:35 UTC20m
2026-07-04 N418CF - Jul 4, 03:20 UTCJul 4, 04:05 UTC45m
2026-07-04 N418CF - Jul 4, 00:35 UTCJul 4, 00:50 UTC15m
2026-07-03 N418CF - Jul 3, 23:40 UTCJul 4, 00:00 UTC20m
2026-07-03 N418CF - Jul 3, 17:35 UTCJul 3, 18:00 UTC25m
2026-07-03 N418CF - Jul 3, 16:45 UTCJul 3, 16:55 UTC10m
2026-07-03 N418CF - Jul 3, 15:45 UTCJul 3, 15:55 UTC10m

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 9d 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.