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sensors Mode-S transponder

A5C311

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N470WC · BELL 407 · operated by AIR METHODS LLC

Hex
A5C311
Octal
51341421
Decimal
10,863,377
Country
US
Tail
N470WC
Type
B407
No current signal · last broadcast 3h ago
Flights observed
104
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A5C311.

Country allocation

The ICAO 24-bit address A5C311 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
N470WC - 104 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 N470WC - Jul 18, 14:45 UTCJul 18, 15:10 UTC25m
2026-07-18 N470WC - Jul 18, 12:30 UTCJul 18, 12:45 UTC15m
2026-07-18 N470WC - Jul 18, 03:00 UTCJul 18, 03:10 UTC10m
2026-07-18 N470WC - Jul 18, 01:15 UTCJul 18, 01:30 UTC15m
2026-07-17 N470WC - Jul 17, 14:15 UTCJul 17, 14:55 UTC40m
2026-07-16 N470WC - Jul 16, 20:29 UTCJul 16, 20:39 UTC10m
2026-07-12 N470WC - Jul 12, 20:15 UTCJul 12, 20:25 UTC10m
2026-07-11 N470WC - Jul 11, 07:35 UTCJul 11, 08:01 UTC25m
2026-07-11 N470WC - Jul 11, 06:15 UTCJul 11, 06:45 UTC30m
2026-07-10 N470WC - Jul 10, 06:30 UTCJul 10, 06:40 UTC10m
2026-07-10 N470WC - Jul 10, 04:55 UTCJul 10, 05:55 UTC1h 0m
2026-07-09 N470WC - Jul 9, 03:45 UTCJul 9, 04:10 UTC25m
2026-07-09 N470WC - Jul 9, 02:35 UTCJul 9, 03:05 UTC30m
2026-07-09 N470WC - Jul 9, 01:40 UTCJul 9, 01:55 UTC15m
2026-07-09 N470WC - Jul 9, 00:25 UTCJul 9, 00:50 UTC25m
2026-07-07 N470WC - Jul 7, 17:40 UTCJul 7, 17:55 UTC15m
2026-07-07 N470WC - Jul 7, 16:15 UTCJul 7, 16:45 UTC30m
2026-07-07 N470WC - Jul 7, 05:10 UTCJul 7, 06:25 UTC1h 15m
2026-07-06 N470WC - Jul 6, 20:55 UTCJul 6, 21:15 UTC20m
2026-07-06 N470WC - Jul 6, 19:10 UTCJul 6, 20:05 UTC55m
2026-07-06 N470WC - Jul 6, 04:15 UTCJul 6, 04:25 UTC10m
2026-07-06 N470WC - Jul 6, 03:30 UTCJul 6, 03:40 UTC10m
2026-07-06 N470WC - Jul 6, 02:00 UTCJul 6, 02:35 UTC35m
2026-07-06 N470WC - Jul 6, 00:45 UTCJul 6, 01:25 UTC40m
2026-07-05 N470WC - Jul 5, 23:15 UTCJul 6, 00:05 UTC50m
2026-07-04 N470WC - Jul 4, 12:20 UTCJul 4, 14:15 UTC1h 55m
2026-07-02 N470WC - Jul 2, 08:50 UTCJul 2, 09:45 UTC55m
2026-07-02 N470WC - Jul 2, 07:15 UTCJul 2, 08:20 UTC1h 5m
2026-07-01 N470WC - Jul 1, 13:30 UTCJul 1, 13:40 UTC10m
2026-07-01 N470WC - Jul 1, 12:25 UTCJul 1, 12:45 UTC20m
2026-07-01 N470WC - Jul 1, 08:35 UTCJul 1, 09:35 UTC1h 0m
2026-07-01 N470WC - Jul 1, 04:55 UTCJul 1, 05:10 UTC15m
2026-06-30 N470WC - Jun 30, 21:45 UTCJun 30, 22:55 UTC1h 10m
2026-06-30 N470WC - Jun 30, 06:40 UTCJun 30, 06:50 UTC10m
2026-06-30 N470WC - Jun 30, 04:05 UTCJun 30, 04:40 UTC35m
2026-06-30 N470WC - Jun 30, 02:45 UTCJun 30, 03:15 UTC30m
2026-06-28 N470WC - Jun 28, 07:40 UTCJun 28, 07:50 UTC10m
2026-06-26 N470WC - Jun 26, 20:55 UTCJun 26, 21:35 UTC40m
2026-06-26 N470WC - Jun 26, 19:50 UTCJun 26, 20:24 UTC35m
2026-06-26 N470WC - Jun 26, 13:30 UTCJun 26, 13:40 UTC10m
2026-06-21 N470WC - Jun 21, 15:59 UTCJun 21, 16:34 UTC35m
2026-06-16 N470WC - Jun 16, 18:29 UTCJun 16, 18:55 UTC25m
2026-06-16 N470WC - Jun 16, 16:25 UTCJun 16, 17:15 UTC50m
2026-06-16 N470WC - Jun 16, 15:40 UTCJun 16, 15:50 UTC10m
2026-06-09 N470WC - Jun 9, 05:00 UTCJun 9, 06:15 UTC1h 15m
2026-06-09 N470WC - Jun 9, 02:35 UTCJun 9, 03:55 UTC1h 20m
2026-06-08 N470WC - Jun 8, 05:55 UTCJun 8, 06:15 UTC20m
2026-06-08 N470WC - Jun 8, 05:05 UTCJun 8, 05:25 UTC20m
2026-06-06 N470WC - Jun 6, 06:10 UTCJun 6, 06:20 UTC10m
2026-06-04 N470WC - Jun 4, 05:35 UTCJun 4, 06:00 UTC25m

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 N470WC page for operator, model, and routing details .

Mode-S A5C311 frequently asked

What is Mode-S code A5C311?
A5C311 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N470WC.
Where is Mode-S A5C311 registered?
Mode-S code A5C311 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 A5C311 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5C311, octal 51341421, decimal 10,863,377.
What flights does A5C311 operate?
Mode-S A5C311 has broadcast 1 distinct callsign, including N470WC.