Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A25B66

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N251BZ · operated by BANK OF UTAH TRUSTEE

Hex
A25B66
Octal
50455546
Decimal
10,640,230
Country
US
Tail
N251BZ
Type
BCS3
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
483
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S A25B66.

Country allocation

The ICAO 24-bit address A25B66 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 20 distinct

Callsign Airline Flights Last seen
MXY619 Breeze Airways 22 2026-06-14
MXY618 Breeze Airways 18 2026-06-13
MXY101 - 12 2026-07-13
MXY100 - 12 2026-07-12
MXY207 Breeze Airways 11 2026-05-04
MXY756 Breeze Airways 9 2026-07-26
MXY541 Breeze Airways 9 2026-04-20
MXY540 Breeze Airways 9 2026-04-20
MXY1847 Breeze Airways 9 2026-06-10
MXY601 Breeze Airways 8 2026-06-15
MXY206 Breeze Airways 8 2026-05-03
MXY757 Breeze Airways 7 2026-07-26
MXY828 Breeze Airways 6 2026-06-16
MXY765 Breeze Airways 6 2026-07-24
MXY764 Breeze Airways 6 2026-07-24
MXY243 Breeze Airways 6 2026-05-05
MXY242 Breeze Airways 6 2026-05-04
MXY173 - 6 2026-07-14
MXY172 - 6 2026-07-13
MXY653 Breeze Airways 5 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MXY757 PWM → PIT Jul 26, 19:30 UTCJul 26, 20:55 UTC1h 25m
2026-07-26 MXY756 PIT → PWM Jul 26, 16:50 UTCJul 26, 18:00 UTC1h 10m
2026-07-26 MXY756 PIT → PWM Jul 26, 14:45 UTCJul 26, 15:50 UTC1h 5m
2026-07-26 MXY756 PIT → PWM Jul 26, 12:20 UTCJul 26, 14:00 UTC1h 40m
2026-07-25 MXY779 ALB → RSW Jul 25, 22:15 UTCJul 26, 01:05 UTC2h 50m
2026-07-25 MXY778 RSW → ALB Jul 25, 18:10 UTCJul 25, 20:50 UTC2h 40m
2026-07-25 MXY783 MHT → RSW Jul 25, 14:10 UTCJul 25, 17:00 UTC2h 50m
2026-07-25 MXY782 RSW → MHT Jul 25, 10:10 UTCJul 25, 12:55 UTC2h 45m
2026-07-25 MXY753 PWM → MCO Jul 25, 01:50 UTCJul 25, 03:55 UTC2h 5m
2026-07-24 MXY752 MCO → PWM Jul 24, 22:25 UTCJul 25, 00:30 UTC2h 5m
2026-07-24 MXY765 BTV → RSW Jul 24, 20:00 UTCJul 24, 21:10 UTC1h 10m
2026-07-24 MXY765 BTV → RSW Jul 24, 16:50 UTCJul 24, 18:55 UTC2h 5m
2026-07-24 MXY764 CHS → BTV Jul 24, 13:40 UTCJul 24, 15:35 UTC1h 55m
2026-07-24 MXY764 CHS → BTV Jul 24, 11:20 UTCJul 24, 12:35 UTC1h 15m
2026-07-23 MXY757 PWM → PIT Jul 23, 23:55 UTCJul 24, 01:20 UTC1h 25m
2026-07-23 MXY757 PWM → PIT Jul 23, 21:50 UTCJul 23, 23:00 UTC1h 10m
2026-07-23 MXY757 PWM → PIT Jul 23, 19:20 UTCJul 23, 20:45 UTC1h 25m
2026-07-23 MXY756 PIT → PWM Jul 23, 16:55 UTCJul 23, 18:15 UTC1h 20m
2026-07-23 MXY756 PIT → PWM Jul 23, 14:45 UTCJul 23, 15:55 UTC1h 10m
2026-07-23 MXY756 PIT → PWM Jul 23, 12:15 UTCJul 23, 13:35 UTC1h 20m
2026-07-22 MXY779 ALB → RSW Jul 22, 22:35 UTCJul 23, 01:40 UTC3h 5m
2026-07-22 MXY778 RSW → ALB Jul 22, 18:50 UTCJul 22, 21:25 UTC2h 35m
2026-07-22 MXY783 MHT → RSW Jul 22, 14:25 UTCJul 22, 17:35 UTC3h 10m
2026-07-22 MXY782 RSW → MHT Jul 22, 11:10 UTCJul 22, 12:55 UTC1h 45m
2026-07-22 MXY745 - Jul 22, 01:55 UTCJul 22, 03:30 UTC1h 35m
2026-07-21 MXY745 - Jul 21, 23:30 UTCJul 22, 00:25 UTC55m
2026-07-21 MXY745 - Jul 21, 20:55 UTCJul 21, 22:20 UTC1h 25m
2026-07-21 MXY744 RDU → PWM Jul 21, 17:05 UTCJul 21, 18:05 UTC1h 0m
2026-07-21 MXY744 RDU → PWM Jul 21, 15:05 UTCJul 21, 15:55 UTC50m
2026-07-21 MXY744 RDU → PWM Jul 21, 11:55 UTCJul 21, 13:35 UTC1h 40m
2026-07-21 MXY753 PWM → MCO Jul 21, 01:40 UTCJul 21, 03:35 UTC1h 55m
2026-07-20 MXY752 MCO → PWM Jul 20, 22:20 UTCJul 21, 00:20 UTC1h 59m
2026-07-20 MXY765 BTV → RSW Jul 20, 20:10 UTCJul 20, 21:20 UTC1h 10m
2026-07-20 MXY765 BTV → RSW Jul 20, 16:40 UTCJul 20, 18:40 UTC2h 0m
2026-07-20 MXY764 CHS → BTV Jul 20, 13:45 UTCJul 20, 15:35 UTC1h 50m
2026-07-20 MXY764 CHS → BTV Jul 20, 11:15 UTCJul 20, 12:20 UTC1h 5m
2026-07-20 MXY881 RIC → RSW Jul 20, 01:30 UTCJul 20, 03:25 UTC1h 55m
2026-07-19 MXY881 RIC → RSW Jul 19, 23:20 UTCJul 20, 00:25 UTC1h 5m
2026-07-19 MXY880 RSW → RIC Jul 19, 20:55 UTCJul 19, 21:50 UTC55m
2026-07-19 MXY880 RSW → RIC Jul 19, 18:05 UTCJul 19, 20:00 UTC1h 55m
2026-07-19 MXY1193 ORF → RSW Jul 19, 14:40 UTCJul 19, 16:35 UTC1h 55m
2026-07-19 MXY1192 RSW → ORF Jul 19, 11:45 UTCJul 19, 13:35 UTC1h 50m
2026-07-18 MXY779 - Jul 18, 23:10 UTCJul 19, 02:05 UTC2h 55m
2026-07-18 MXY778 RSW → ALB Jul 18, 18:15 UTCJul 18, 21:05 UTC2h 50m
2026-07-18 MXY783 - Jul 18, 14:05 UTCJul 18, 17:00 UTC2h 55m
2026-07-18 MXY782 RSW → MHT Jul 18, 10:05 UTCJul 18, 12:55 UTC2h 50m
2026-07-18 MXY753 - Jul 18, 01:50 UTCJul 18, 03:55 UTC2h 6m
2026-07-17 MXY752 RSW → SDF Jul 17, 22:35 UTCJul 18, 00:39 UTC2h 5m
2026-07-17 MXY765 BTV → RSW Jul 17, 20:00 UTCJul 17, 21:25 UTC1h 25m
2026-07-17 MXY765 BTV → RSW Jul 17, 16:29 UTCJul 17, 18:25 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 N251BZ page for operator, model, and routing details .

Mode-S A25B66 frequently asked

What is Mode-S code A25B66?
A25B66 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N251BZ.
Where is Mode-S A25B66 registered?
Mode-S code A25B66 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 A25B66 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A25B66, octal 50455546, decimal 10,640,230.
What flights does A25B66 operate?
Mode-S A25B66 has broadcast 20 distinct callsigns, including MXY619, MXY618, MXY101, MXY100, MXY207.