sensors Mode-S transponder

A27FB8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N260HM · PIAGGIO P-180 Avanti

Hex
A27FB8
Octal
50477670
Decimal
10,649,528
Country
US
Tail
N260HM
Type
P180
No current signal · last broadcast Jul 23, 20:25 UTC
Flights observed
34
Distinct callsigns
2
Country
US
Last broadcast
Jul 23, 20:25 UTC

Last known position

Most recent position reported by Mode-S A27FB8.

Country allocation

The ICAO 24-bit address A27FB8 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 2 distinct

Callsign Airline Flights Last seen
N26OHM - 21 2026-07-23
N76OHM - 13 2026-05-03

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-07-23 N26OHM - Jul 23, 19:05 UTCJul 23, 20:25 UTC1h 20m
2026-07-21 N26OHM - Jul 21, 13:30 UTCJul 21, 14:45 UTC1h 15m
2026-07-17 N26OHM - Jul 17, 19:05 UTCJul 17, 20:40 UTC1h 35m
2026-07-14 N26OHM - Jul 14, 19:05 UTCJul 14, 20:35 UTC1h 30m
2026-07-09 N26OHM - Jul 9, 22:00 UTCJul 9, 23:25 UTC1h 25m
2026-07-08 N26OHM - Jul 8, 17:40 UTCJul 8, 18:25 UTC45m
2026-07-08 N26OHM - Jul 8, 13:20 UTCJul 8, 14:40 UTC1h 20m
2026-07-02 N26OHM - Jul 2, 19:25 UTCJul 2, 22:40 UTC3h 15m
2026-06-30 N26OHM - Jun 30, 01:40 UTCJun 30, 03:00 UTC1h 20m
2026-06-29 N26OHM - Jun 29, 22:19 UTCJun 30, 00:45 UTC2h 25m
2026-06-18 N26OHM - Jun 18, 20:10 UTCJun 18, 21:25 UTC1h 15m
2026-06-15 N26OHM - Jun 15, 13:10 UTCJun 15, 14:30 UTC1h 20m
2026-06-06 N26OHM - Jun 6, 15:59 UTCJun 6, 19:24 UTC3h 25m
2026-05-30 N26OHM - May 30, 13:15 UTCMay 30, 16:10 UTC2h 55m
2026-05-21 N26OHM - May 21, 19:30 UTCMay 21, 20:40 UTC1h 10m
2026-05-20 N26OHM - May 20, 19:50 UTCMay 20, 20:55 UTC1h 5m
2026-05-20 N26OHM - May 20, 17:20 UTCMay 20, 17:55 UTC35m
2026-05-18 N26OHM - May 18, 13:15 UTCMay 18, 14:45 UTC1h 30m
2026-05-08 N26OHM - May 8, 19:40 UTCMay 8, 20:50 UTC1h 10m
2026-05-08 N26OHM - May 8, 16:30 UTCMay 8, 17:50 UTC1h 20m
2026-05-03 N26OHM - May 3, 22:34 UTCMay 3, 23:50 UTC1h 15m
2026-05-03 N76OHM - May 3, 20:00 UTCMay 3, 21:50 UTC1h 50m
2026-05-01 N76OHM - May 1, 14:10 UTCMay 1, 17:20 UTC3h 10m
2026-04-29 N76OHM - Apr 29, 19:55 UTCApr 29, 20:40 UTC45m
2026-04-29 N76OHM - Apr 29, 13:05 UTCApr 29, 13:55 UTC50m
2026-04-27 N76OHM - Apr 27, 00:25 UTCApr 27, 02:05 UTC1h 40m
2026-04-26 N76OHM - Apr 26, 20:10 UTCApr 26, 21:00 UTC50m
2026-04-26 N76OHM - Apr 26, 18:55 UTCApr 26, 19:40 UTC45m
2026-04-17 N76OHM - Apr 17, 17:25 UTCApr 17, 18:10 UTC45m
2026-04-17 N76OHM - Apr 17, 17:00 UTCApr 17, 17:15 UTC15m
2026-04-15 N76OHM - Apr 15, 15:05 UTCApr 15, 16:00 UTC55m
2026-04-15 N76OHM - Apr 15, 13:10 UTCApr 15, 13:45 UTC35m
2026-04-14 N76OHM - Apr 14, 18:55 UTCApr 14, 19:45 UTC50m
2026-04-14 N76OHM - Apr 14, 16:50 UTCApr 14, 18:45 UTC1h 55m

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 N260HM page for operator, model, and routing details .

Mode-S A27FB8 frequently asked

What is Mode-S code A27FB8?
A27FB8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N260HM.
Where is Mode-S A27FB8 registered?
Mode-S code A27FB8 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 A27FB8 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A27FB8, octal 50477670, decimal 10,649,528.
What flights does A27FB8 operate?
Mode-S A27FB8 has broadcast 2 distinct callsigns, including N26OHM, N76OHM.