Apparatus

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sensors Mode-S transponder

A271B0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N257BZ · AIRBUS A220-300 · operated by BREEZE AVIATION GROUP INC.

Hex
A271B0
Octal
50470660
Decimal
10,645,936
Country
US
Tail
N257BZ
Type
BCS3
Broadcasting now · callsign MXY765 · 17,525 ft
Flights observed
567
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:45 UTC

Current position

A271B0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A271B0 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
MXY246 - 26 2026-07-10
MXY247 - 25 2026-07-10
MXY123 Breeze Airways 20 2026-06-14
MXY122 Breeze Airways 20 2026-06-14
MXY797 - 18 2026-06-16
MXY796 Breeze Airways 16 2026-06-16
MXY491 - 16 2026-07-06
MXY490 - 16 2026-07-06
MXY408 - 15 2026-07-02
MXY311 - 15 2026-07-09
MXY310 - 15 2026-07-09
MXY413 - 14 2026-07-02
MXY412 - 14 2026-07-01
MXY747 Breeze Airways 12 2026-06-14
MXY953 - 11 2026-07-04
MXY746 - 11 2026-06-15
MXY915 Breeze Airways 10 2026-06-05
MXY914 Breeze Airways 10 2026-06-05
MXY409 - 10 2026-06-15
MXY952 - 9 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MXY209 CMH → CHS Jul 26, 17:35 UTCJul 26, 18:45 UTC1h 10m
2026-07-26 MXY209 CMH → CHS Jul 26, 15:35 UTCJul 26, 16:35 UTC1h 0m
2026-07-26 MXY208 CMH → RDU Jul 26, 13:45 UTCJul 26, 14:40 UTC55m
2026-07-26 MXY208 CMH → RDU Jul 26, 11:05 UTCJul 26, 12:35 UTC1h 30m
2026-07-26 MXY237 RIC → CHS Jul 26, 01:35 UTCJul 26, 02:35 UTC1h 0m
2026-07-25 MXY237 RIC → CHS Jul 25, 19:50 UTCJul 26, 00:35 UTC4h 45m
2026-07-25 MXY236 RIC → SFO Jul 25, 12:50 UTCJul 25, 18:25 UTC5h 35m
2026-07-25 MXY236 RIC → SFO Jul 25, 10:35 UTCJul 25, 11:30 UTC55m
2026-07-25 MXY255 ISP → CHS Jul 25, 01:50 UTCJul 25, 03:35 UTC1h 45m
2026-07-24 MXY254 CHS → ISP Jul 24, 23:00 UTCJul 25, 00:35 UTC1h 35m
2026-07-24 MXY211 LAX → PIT Jul 24, 20:20 UTCJul 24, 21:45 UTC1h 25m
2026-07-24 MXY210 PIT → PVD Jul 24, 17:35 UTCJul 24, 18:55 UTC1h 20m
2026-07-24 MXY273 - Jul 24, 14:15 UTCJul 24, 16:10 UTC1h 55m
2026-07-24 MXY272 CHS → ALB Jul 24, 11:10 UTCJul 24, 12:55 UTC1h 45m
2026-07-23 MXY207 LAS → CAK Jul 23, 23:15 UTCJul 24, 00:30 UTC1h 15m
2026-07-23 MXY207 LAS → CAK Jul 23, 18:40 UTCJul 23, 22:20 UTC3h 40m
2026-07-23 MXY206 CHS → CAK Jul 23, 13:20 UTCJul 23, 17:25 UTC4h 5m
2026-07-23 MXY206 CHS → CAK Jul 23, 11:05 UTCJul 23, 12:25 UTC1h 20m
2026-07-23 MXY237 RIC → CHS Jul 23, 01:25 UTCJul 23, 02:20 UTC55m
2026-07-22 MXY237 RIC → CHS Jul 22, 19:40 UTCJul 23, 00:15 UTC4h 35m
2026-07-22 MXY236 - Jul 22, 13:05 UTCJul 22, 18:20 UTC5h 15m
2026-07-22 MXY236 - Jul 22, 11:20 UTCJul 22, 11:45 UTC25m
2026-07-21 MXY295 PBI → CHS Jul 21, 23:15 UTCJul 22, 00:55 UTC1h 40m
2026-07-21 MXY294 CHS → PBI Jul 21, 20:25 UTCJul 21, 22:20 UTC1h 55m
2026-07-21 MXY229 SDF → CHS Jul 21, 00:35 UTCJul 21, 01:40 UTC1h 5m
2026-07-20 MXY229 SDF → CHS Jul 20, 19:40 UTCJul 20, 23:40 UTC4h 0m
2026-07-20 MXY228 SDF → SFO Jul 20, 13:50 UTCJul 20, 18:00 UTC4h 10m
2026-07-20 MXY228 SDF → SFO Jul 20, 11:05 UTCJul 20, 12:20 UTC1h 15m
2026-07-20 MXY259 CVG → CHS Jul 20, 01:25 UTCJul 20, 02:35 UTC1h 10m
2026-07-19 MXY259 CVG → CHS Jul 19, 20:15 UTCJul 20, 00:25 UTC4h 10m
2026-07-19 MXY258 - Jul 19, 14:05 UTCJul 19, 18:10 UTC4h 5m
2026-07-19 MXY258 - Jul 19, 11:35 UTCJul 19, 12:45 UTC1h 10m
2026-07-19 MXY245 - Jul 19, 00:00 UTCJul 19, 01:05 UTC1h 5m
2026-07-18 MXY245 LAS → RSW Jul 18, 18:25 UTCJul 18, 23:00 UTC4h 35m
2026-07-18 MXY244 RSW → LAS Jul 18, 12:40 UTCJul 18, 17:00 UTC4h 20m
2026-07-18 MXY244 - Jul 18, 10:15 UTCJul 18, 11:25 UTC1h 10m
2026-07-18 MXY243 SYR → CHS Jul 18, 01:45 UTCJul 18, 03:20 UTC1h 36m
2026-07-17 MXY243 SYR → CHS Jul 17, 20:15 UTCJul 18, 00:25 UTC4h 10m
2026-07-17 MXY508 ORF → CMH Jul 17, 14:04 UTCJul 17, 18:25 UTC4h 20m
2026-07-17 MXY508 ORF → CMH Jul 17, 10:25 UTCJul 17, 11:25 UTC1h 0m
2026-07-17 MXY501 CHS → BDL Jul 17, 00:30 UTCJul 17, 02:10 UTC1h 40m
2026-07-16 MXY501 CHS → BDL Jul 16, 22:00 UTCJul 16, 23:20 UTC1h 20m
2026-07-16 MXY500 - Jul 16, 19:45 UTCJul 16, 21:00 UTC1h 15m
2026-07-16 MXY500 - Jul 16, 16:35 UTCJul 16, 18:19 UTC1h 45m
2026-07-16 MXY509 - Jul 16, 14:10 UTCJul 16, 15:14 UTC1h 5m
2026-07-16 MXY508 - Jul 16, 12:05 UTCJul 16, 13:05 UTC1h 0m
2026-07-16 MXY1695 - Jul 16, 01:35 UTCJul 16, 03:20 UTC1h 45m
2026-07-15 MXY1695 - Jul 15, 19:55 UTCJul 16, 00:35 UTC4h 40m
2026-07-15 MXY1694 - Jul 15, 13:35 UTCJul 15, 18:00 UTC4h 25m
2026-07-15 MXY1694 - Jul 15, 10:35 UTCJul 15, 12:20 UTC1h 45m

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 N257BZ page for operator, model, and routing details .

Mode-S A271B0 frequently asked

What is Mode-S code A271B0?
A271B0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N257BZ.
Where is Mode-S A271B0 registered?
Mode-S code A271B0 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 A271B0 broadcasting right now?
Yes. Mode-S A271B0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A271B0, octal 50470660, decimal 10,645,936.
What flights does A271B0 operate?
Mode-S A271B0 has broadcast 20 distinct callsigns, including MXY246, MXY247, MXY123, MXY122, MXY797.