sensors Mode-S transponder

A11B6C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N170Z · operated by TEXTRON AVIATION INC

Hex
A11B6C
Octal
50215554
Decimal
10,558,316
Country
US
Tail
N170Z
Type
BE20
No current signal · last broadcast 18d ago
Flights observed
31
Distinct callsigns
1
Country
US
Last broadcast
18d ago

Last known position

Most recent position reported by Mode-S A11B6C.

Country allocation

The ICAO 24-bit address A11B6C 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
XCN70 - 31 2026-05-11

Recent flights last 31

DateFlightRouteTakeoffLandingDuration
2026-05-11 XCN70 - May 11, 22:10 UTCMay 11, 22:35 UTC24m
2026-05-09 XCN70 - May 9, 21:45 UTCMay 9, 21:55 UTC10m
2026-05-09 XCN70 - May 9, 20:30 UTCMay 9, 20:40 UTC10m
2026-05-09 XCN70 PIH → OGD May 9, 18:55 UTCMay 9, 19:25 UTC30m
2026-05-08 XCN70 - May 8, 20:00 UTCMay 8, 20:20 UTC20m
2026-05-08 XCN70 - May 8, 15:00 UTCMay 8, 18:05 UTC3h 5m
2026-05-07 XCN70 - May 7, 20:20 UTCMay 7, 22:05 UTC1h 45m
2026-05-07 XCN70 - May 7, 02:15 UTCMay 7, 03:50 UTC1h 35m
2026-05-06 XCN70 - May 6, 02:15 UTCMay 6, 03:35 UTC1h 20m
2026-05-05 XCN70 - May 5, 02:30 UTCMay 5, 03:55 UTC1h 25m
2026-05-04 XCN70 - May 4, 02:35 UTCMay 4, 04:05 UTC1h 30m
2026-05-03 XCN70 - May 3, 02:10 UTCMay 3, 03:30 UTC1h 19m
2026-05-01 XCN70 - May 1, 02:00 UTCMay 1, 03:25 UTC1h 25m
2026-04-30 XCN70 - Apr 30, 01:35 UTCApr 30, 03:00 UTC1h 25m
2026-04-29 XCN70 - Apr 29, 01:59 UTCApr 29, 03:24 UTC1h 25m
2026-04-28 XCN70 - Apr 28, 02:05 UTCApr 28, 03:45 UTC1h 40m
2026-04-27 XCN70 - Apr 27, 02:05 UTCApr 27, 03:40 UTC1h 35m
2026-04-26 XCN70 - Apr 26, 02:50 UTCApr 26, 04:55 UTC2h 5m
2026-04-25 XCN70 - Apr 25, 01:40 UTCApr 25, 03:20 UTC1h 40m
2026-04-24 XCN70 - Apr 24, 21:00 UTCApr 24, 23:40 UTC2h 40m
2026-04-24 XCN70 OGD → OKC Apr 24, 16:35 UTCApr 24, 19:15 UTC2h 40m
2026-04-23 XCN70 - Apr 23, 20:45 UTCApr 23, 21:40 UTC55m
2026-04-23 XCN70 - Apr 23, 19:40 UTCApr 23, 20:05 UTC25m
2026-04-23 XCN70 - Apr 23, 01:10 UTCApr 23, 01:25 UTC15m
2026-04-22 XCN70 - Apr 22, 23:50 UTCApr 23, 00:00 UTC10m
2026-04-22 XCN70 - Apr 22, 02:45 UTCApr 22, 03:10 UTC25m
2026-04-22 XCN70 - Apr 22, 01:00 UTCApr 22, 01:55 UTC55m
2026-04-16 XCN70 - Apr 16, 21:55 UTCApr 16, 22:54 UTC1h 0m
2026-04-16 XCN70 - Apr 16, 17:54 UTCApr 16, 19:00 UTC1h 5m
2026-04-13 XCN70 - Apr 13, 20:55 UTCApr 13, 21:50 UTC55m
2026-04-13 XCN70 OGD → BOI Apr 13, 17:15 UTCApr 13, 18:25 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 N170Z page for operator, model, and routing details .

Mode-S A11B6C frequently asked

What is Mode-S code A11B6C?
A11B6C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N170Z.
Where is Mode-S A11B6C registered?
Mode-S code A11B6C 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 A11B6C broadcasting right now?
No active broadcast right now. Last signal was 18d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A11B6C, octal 50215554, decimal 10,558,316.
What flights does A11B6C operate?
Mode-S A11B6C has broadcast 1 distinct callsign, including XCN70.