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sensors Mode-S transponder

A30B31

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N29554 · CESSNA 177 Cardinal · operated by EAGLE SKY PATROL

Hex
A30B31
Octal
50605461
Decimal
10,685,233
Country
US
Tail
N29554
Type
C177
No current signal · last broadcast Jul 23, 18:30 UTC
Flights observed
114
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 18:30 UTC

Last known position

Most recent position reported by Mode-S A30B31.

Country allocation

The ICAO 24-bit address A30B31 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
N29554 - 114 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N29554 - Jul 23, 18:00 UTCJul 23, 18:30 UTC30m
2026-07-23 N29554 - Jul 23, 15:10 UTCJul 23, 16:15 UTC1h 5m
2026-07-23 N29554 - Jul 23, 14:10 UTCJul 23, 14:35 UTC25m
2026-07-22 N29554 - Jul 22, 21:55 UTCJul 22, 23:00 UTC1h 5m
2026-07-20 N29554 - Jul 20, 18:45 UTCJul 20, 19:50 UTC1h 5m
2026-07-20 N29554 - Jul 20, 12:50 UTCJul 20, 13:20 UTC30m
2026-07-20 N29554 - Jul 20, 02:10 UTCJul 20, 02:50 UTC40m
2026-07-18 N29554 - Jul 18, 16:45 UTCJul 18, 17:05 UTC20m
2026-07-18 N29554 - Jul 18, 15:20 UTCJul 18, 15:50 UTC30m
2026-07-17 N29554 - Jul 17, 22:10 UTCJul 18, 01:15 UTC3h 5m
2026-07-17 N29554 - Jul 17, 17:15 UTCJul 17, 21:10 UTC3h 55m
2026-07-17 N29554 - Jul 17, 14:35 UTCJul 17, 16:04 UTC1h 30m
2026-07-17 N29554 - Jul 17, 13:10 UTCJul 17, 13:40 UTC30m
2026-07-16 N29554 - Jul 16, 20:45 UTCJul 16, 22:30 UTC1h 45m
2026-07-09 N29554 - Jul 9, 18:30 UTCJul 9, 19:00 UTC30m
2026-07-09 N29554 - Jul 9, 16:40 UTCJul 9, 17:00 UTC20m
2026-07-09 N29554 - Jul 9, 15:15 UTCJul 9, 15:40 UTC25m
2026-07-08 N29554 - Jul 8, 23:55 UTCJul 9, 00:50 UTC55m
2026-07-08 N29554 - Jul 8, 13:45 UTCJul 8, 14:15 UTC30m
2026-07-07 N29554 - Jul 7, 22:30 UTCJul 7, 22:50 UTC20m
2026-07-06 N29554 - Jul 6, 15:15 UTCJul 6, 16:05 UTC50m
2026-07-02 N29554 - Jul 2, 19:40 UTCJul 2, 20:05 UTC25m
2026-07-02 N29554 - Jul 2, 17:35 UTCJul 2, 18:45 UTC1h 10m
2026-06-30 N29554 - Jun 30, 00:45 UTCJun 30, 01:14 UTC30m
2026-06-29 N29554 - Jun 29, 22:19 UTCJun 30, 00:14 UTC1h 55m
2026-06-29 N29554 - Jun 29, 18:25 UTCJun 29, 18:49 UTC25m
2026-06-25 N29554 - Jun 25, 22:04 UTCJun 25, 23:09 UTC1h 5m
2026-06-24 N29554 - Jun 24, 17:25 UTCJun 24, 18:34 UTC1h 10m
2026-06-22 N29554 - Jun 22, 21:59 UTCJun 22, 23:14 UTC1h 15m
2026-06-22 N29554 - Jun 22, 19:24 UTCJun 22, 21:25 UTC2h 0m
2026-06-22 N29554 - Jun 22, 16:50 UTCJun 22, 18:00 UTC1h 10m
2026-06-22 N29554 - Jun 22, 15:35 UTCJun 22, 16:20 UTC45m
2026-06-21 N29554 - Jun 21, 19:39 UTCJun 21, 19:55 UTC15m
2026-06-21 N29554 - Jun 21, 18:10 UTCJun 21, 18:29 UTC20m
2026-06-19 N29554 - Jun 19, 00:20 UTCJun 19, 01:10 UTC50m
2026-06-18 N29554 - Jun 18, 01:55 UTCJun 18, 02:10 UTC15m
2026-06-17 N29554 - Jun 17, 18:15 UTCJun 17, 18:35 UTC20m
2026-06-17 N29554 - Jun 17, 16:20 UTCJun 17, 17:35 UTC1h 15m
2026-06-17 N29554 - Jun 17, 12:05 UTCJun 17, 13:20 UTC1h 15m
2026-06-16 N29554 - Jun 16, 20:20 UTCJun 16, 20:50 UTC30m
2026-06-16 N29554 - Jun 16, 15:24 UTCJun 16, 15:50 UTC25m
2026-06-12 N29554 - Jun 12, 18:25 UTCJun 12, 19:05 UTC40m
2026-06-12 N29554 - Jun 12, 17:40 UTCJun 12, 17:50 UTC10m
2026-06-12 N29554 - Jun 12, 16:35 UTCJun 12, 17:00 UTC25m
2026-06-12 N29554 - Jun 12, 14:40 UTCJun 12, 15:20 UTC40m
2026-06-09 N29554 - Jun 9, 21:50 UTCJun 9, 23:35 UTC1h 45m
2026-06-09 N29554 - Jun 9, 17:35 UTCJun 9, 18:15 UTC40m
2026-06-09 N29554 - Jun 9, 14:25 UTCJun 9, 15:50 UTC1h 25m
2026-06-09 N29554 - Jun 9, 13:00 UTCJun 9, 13:35 UTC35m
2026-06-08 N29554 - Jun 8, 22:40 UTCJun 9, 00:10 UTC1h 30m

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 N29554 page for operator, model, and routing details .

Mode-S A30B31 frequently asked

What is Mode-S code A30B31?
A30B31 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N29554.
Where is Mode-S A30B31 registered?
Mode-S code A30B31 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 A30B31 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 18:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A30B31, octal 50605461, decimal 10,685,233.
What flights does A30B31 operate?
Mode-S A30B31 has broadcast 1 distinct callsign, including N29554.