Apparatus

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sensors Mode-S transponder

A1B348

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N20884 · CESSNA 172 Skyhawk · operated by ATPCE LLC

Hex
A1B348
Octal
50331510
Decimal
10,597,192
Country
US
Tail
N20884
Type
C172
No current signal · last broadcast 59m ago
Flights observed
164
Distinct callsigns
1
Country
US
Last broadcast
59m ago

Last known position

Most recent position reported by Mode-S A1B348.

Country allocation

The ICAO 24-bit address A1B348 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
CXK208 - 164 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CXK208 - Jul 17, 20:40 UTCJul 17, 21:55 UTC1h 15m
2026-07-17 CXK208 - Jul 17, 18:40 UTCJul 17, 19:30 UTC50m
2026-07-17 CXK208 - Jul 17, 14:15 UTCJul 17, 15:40 UTC1h 25m
2026-07-16 CXK208 - Jul 16, 23:29 UTCJul 17, 00:40 UTC1h 10m
2026-07-16 CXK208 - Jul 16, 19:35 UTCJul 16, 20:19 UTC45m
2026-07-10 CXK208 - Jul 10, 16:40 UTCJul 10, 18:35 UTC1h 55m
2026-07-09 CXK208 - Jul 9, 22:10 UTCJul 9, 23:25 UTC1h 15m
2026-07-09 CXK208 - Jul 9, 16:55 UTCJul 9, 18:25 UTC1h 30m
2026-07-02 CXK208 - Jul 2, 17:50 UTCJul 2, 18:55 UTC1h 5m
2026-07-02 CXK208 - Jul 2, 03:50 UTCJul 2, 05:00 UTC1h 10m
2026-07-01 CXK208 - Jul 1, 23:35 UTCJul 2, 00:40 UTC1h 5m
2026-06-30 CXK208 LGB → LGB Jun 30, 17:55 UTCJun 30, 19:00 UTC1h 5m
2026-06-30 CXK208 - Jun 30, 03:55 UTCJun 30, 04:10 UTC15m
2026-06-29 CXK208 - Jun 29, 22:30 UTCJun 29, 23:19 UTC50m
2026-06-29 CXK208 - Jun 29, 14:19 UTCJun 29, 16:19 UTC2h 0m
2026-06-28 CXK208 - Jun 28, 20:14 UTCJun 28, 21:59 UTC1h 45m
2026-06-27 CXK208 LGB → LGB Jun 27, 19:39 UTCJun 27, 20:19 UTC40m
2026-06-27 CXK208 LGB → LGB Jun 27, 17:29 UTCJun 27, 18:39 UTC1h 10m
2026-06-26 CXK208 - Jun 26, 23:39 UTCJun 27, 01:35 UTC1h 55m
2026-06-26 CXK208 - Jun 26, 20:50 UTCJun 26, 21:45 UTC55m
2026-06-26 CXK208 - Jun 26, 17:40 UTCJun 26, 18:15 UTC35m
2026-06-26 CXK208 - Jun 26, 04:14 UTCJun 26, 05:05 UTC50m
2026-06-26 CXK208 LGB → LGB Jun 26, 00:30 UTCJun 26, 01:39 UTC1h 10m
2026-06-25 CXK208 - Jun 25, 22:45 UTCJun 25, 23:34 UTC50m
2026-06-25 CXK208 LGB → LGB Jun 25, 19:15 UTCJun 25, 20:09 UTC55m
2026-06-25 CXK208 - Jun 25, 17:14 UTCJun 25, 17:54 UTC40m
2026-06-25 CXK208 - Jun 25, 02:19 UTCJun 25, 04:04 UTC1h 45m
2026-06-24 CXK208 - Jun 24, 22:55 UTCJun 25, 00:05 UTC1h 10m
2026-06-24 CXK208 - Jun 24, 20:14 UTCJun 24, 21:19 UTC1h 5m
2026-06-24 CXK208 - Jun 24, 18:34 UTCJun 24, 19:15 UTC40m
2026-06-24 CXK208 - Jun 24, 04:05 UTCJun 24, 05:09 UTC1h 5m
2026-06-24 CXK208 - Jun 24, 01:30 UTCJun 24, 02:49 UTC1h 20m
2026-06-23 CXK208 - Jun 23, 23:10 UTCJun 24, 00:34 UTC1h 25m
2026-06-23 CXK208 - Jun 23, 21:59 UTCJun 23, 22:55 UTC55m
2026-06-23 CXK208 - Jun 23, 20:04 UTCJun 23, 20:40 UTC35m
2026-06-23 CXK208 - Jun 23, 17:04 UTCJun 23, 18:50 UTC1h 45m
2026-06-23 CXK208 - Jun 23, 14:10 UTCJun 23, 15:19 UTC1h 10m
2026-06-23 CXK208 - Jun 23, 04:00 UTCJun 23, 05:20 UTC1h 20m
2026-06-21 CXK208 - Jun 21, 16:59 UTCJun 21, 17:39 UTC40m
2026-06-21 CXK208 - Jun 21, 04:04 UTCJun 21, 04:20 UTC15m
2026-06-20 CXK208 - Jun 20, 23:59 UTCJun 21, 00:45 UTC45m
2026-06-20 CXK208 - Jun 20, 21:25 UTCJun 20, 22:35 UTC1h 10m
2026-06-20 CXK208 LGB → LGB Jun 20, 03:44 UTCJun 20, 04:59 UTC1h 15m
2026-06-19 CXK208 - Jun 19, 23:14 UTCJun 20, 00:14 UTC1h 0m
2026-06-18 CXK208 - Jun 18, 23:55 UTCJun 19, 01:59 UTC2h 4m
2026-06-18 CXK208 - Jun 18, 20:55 UTCJun 18, 22:10 UTC1h 15m
2026-06-17 CXK208 - Jun 17, 22:25 UTCJun 17, 23:35 UTC1h 10m
2026-06-17 CXK208 - Jun 17, 19:25 UTCJun 17, 20:00 UTC35m
2026-06-17 CXK208 - Jun 17, 17:55 UTCJun 17, 18:40 UTC45m
2026-06-16 CXK208 - Jun 16, 23:40 UTCJun 17, 00:50 UTC1h 10m

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 N20884 page for operator, model, and routing details .

Mode-S A1B348 frequently asked

What is Mode-S code A1B348?
A1B348 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N20884.
Where is Mode-S A1B348 registered?
Mode-S code A1B348 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 A1B348 broadcasting right now?
No active broadcast right now. Last signal was 59m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1B348, octal 50331510, decimal 10,597,192.
What flights does A1B348 operate?
Mode-S A1B348 has broadcast 1 distinct callsign, including CXK208.