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sensors Mode-S transponder

A20888

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N230AH · operated by AIR METHODS LLC

Hex
A20888
Octal
50404210
Decimal
10,619,016
Country
US
Tail
N230AH
Type
AS50
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
205
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S A20888.

Country allocation

The ICAO 24-bit address A20888 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
N230AH - 205 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N230AH - Jul 26, 21:10 UTCJul 26, 21:55 UTC45m
2026-07-26 N230AH - Jul 26, 18:10 UTCJul 26, 18:50 UTC40m
2026-07-26 N230AH - Jul 26, 17:20 UTCJul 26, 17:35 UTC15m
2026-07-26 N230AH - Jul 26, 15:40 UTCJul 26, 16:35 UTC55m
2026-07-26 N230AH - Jul 26, 11:20 UTCJul 26, 11:30 UTC10m
2026-07-25 N230AH - Jul 25, 13:50 UTCJul 25, 14:00 UTC10m
2026-07-23 N230AH - Jul 23, 19:25 UTCJul 23, 20:40 UTC1h 15m
2026-07-23 N230AH - Jul 23, 05:20 UTCJul 23, 06:20 UTC1h 0m
2026-07-22 N230AH - Jul 22, 03:25 UTCJul 22, 04:15 UTC50m
2026-07-22 N230AH - Jul 22, 02:45 UTCJul 22, 02:55 UTC10m
2026-07-21 N230AH - Jul 21, 20:40 UTCJul 21, 21:20 UTC40m
2026-07-21 N230AH - Jul 21, 19:50 UTCJul 21, 20:00 UTC10m
2026-07-20 N230AH - Jul 20, 22:10 UTCJul 20, 22:55 UTC45m
2026-07-20 N230AH - Jul 20, 12:25 UTCJul 20, 12:35 UTC10m
2026-07-19 N230AH - Jul 19, 06:05 UTCJul 19, 06:15 UTC10m
2026-07-19 N230AH - Jul 19, 04:30 UTCJul 19, 05:15 UTC45m
2026-07-19 N230AH - Jul 19, 03:05 UTCJul 19, 03:20 UTC15m
2026-07-16 N230AH - Jul 16, 19:40 UTCJul 16, 19:55 UTC15m
2026-07-16 N230AH - Jul 16, 13:00 UTCJul 16, 13:40 UTC40m
2026-07-15 N230AH - Jul 15, 23:10 UTCJul 15, 23:20 UTC10m
2026-07-15 N230AH - Jul 15, 02:10 UTCJul 15, 02:20 UTC10m
2026-07-14 N230AH - Jul 14, 22:05 UTCJul 14, 22:15 UTC10m
2026-07-14 N230AH - Jul 14, 21:25 UTCJul 14, 21:40 UTC15m
2026-07-14 N230AH - Jul 14, 20:15 UTCJul 14, 20:30 UTC15m
2026-07-14 N230AH - Jul 14, 17:00 UTCJul 14, 17:10 UTC10m
2026-07-14 N230AH - Jul 14, 03:40 UTCJul 14, 03:50 UTC10m
2026-07-13 N230AH - Jul 13, 19:05 UTCJul 13, 19:50 UTC45m
2026-07-11 N230AH - Jul 11, 23:20 UTCJul 12, 00:05 UTC45m
2026-07-11 N230AH - Jul 11, 15:15 UTCJul 11, 15:30 UTC15m
2026-07-11 N230AH - Jul 11, 10:50 UTCJul 11, 13:50 UTC3h 0m
2026-07-11 N230AH - Jul 11, 08:30 UTCJul 11, 08:45 UTC15m
2026-07-11 N230AH - Jul 11, 06:55 UTCJul 11, 07:10 UTC15m
2026-07-10 N230AH - Jul 10, 15:50 UTCJul 10, 16:30 UTC40m
2026-07-10 N230AH - Jul 10, 06:55 UTCJul 10, 08:25 UTC1h 30m
2026-07-10 N230AH - Jul 10, 05:30 UTCJul 10, 06:20 UTC50m
2026-07-09 N230AH - Jul 9, 18:05 UTCJul 9, 18:30 UTC25m
2026-07-09 N230AH - Jul 9, 17:15 UTCJul 9, 17:25 UTC10m
2026-07-09 N230AH - Jul 9, 16:00 UTCJul 9, 16:15 UTC15m
2026-07-09 N230AH - Jul 9, 05:10 UTCJul 9, 05:20 UTC10m
2026-07-09 N230AH - Jul 9, 03:30 UTCJul 9, 03:45 UTC15m
2026-07-07 N230AH - Jul 7, 21:40 UTCJul 7, 22:15 UTC35m
2026-07-05 N230AH - Jul 5, 15:50 UTCJul 5, 16:30 UTC40m
2026-07-05 N230AH - Jul 5, 07:40 UTCJul 5, 08:20 UTC40m
2026-07-04 N230AH - Jul 4, 07:25 UTCJul 4, 07:40 UTC15m
2026-07-04 N230AH - Jul 4, 05:40 UTCJul 4, 05:55 UTC15m
2026-07-04 N230AH - Jul 4, 04:30 UTCJul 4, 04:45 UTC15m
2026-07-04 N230AH - Jul 4, 02:55 UTCJul 4, 03:05 UTC10m
2026-07-02 N230AH - Jul 2, 11:55 UTCJul 2, 12:55 UTC1h 0m
2026-07-02 N230AH - Jul 2, 10:50 UTCJul 2, 11:20 UTC30m
2026-07-02 N230AH - Jul 2, 06:35 UTCJul 2, 06:55 UTC20m

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 N230AH page for operator, model, and routing details .

Mode-S A20888 frequently asked

What is Mode-S code A20888?
A20888 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N230AH.
Where is Mode-S A20888 registered?
Mode-S code A20888 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 A20888 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A20888, octal 50404210, decimal 10,619,016.
What flights does A20888 operate?
Mode-S A20888 has broadcast 1 distinct callsign, including N230AH.