Apparatus

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sensors Mode-S transponder

A2519F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N249BZ · operated by BANK OF UTAH TRUSTEE

Hex
A2519F
Octal
50450637
Decimal
10,637,727
Country
US
Tail
N249BZ
Type
BCS3
Broadcasting now · callsign MXY952 · 28,000 ft
Flights observed
490
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:55 UTC

Current position

A2519F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2519F 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
MXY408 Breeze Airways 14 2026-07-20
MXY329 Breeze Airways 14 2026-04-23
MXY246 Breeze Airways 14 2026-07-24
MXY409 - 13 2026-07-17
MXY247 Breeze Airways 13 2026-07-23
MXY328 Breeze Airways 11 2026-04-23
MXY909 Breeze Airways 10 2026-07-17
MXY796 - 10 2026-07-14
MXY352 Breeze Airways 10 2026-04-26
MXY123 Breeze Airways 10 2026-07-23
MXY122 Breeze Airways 10 2026-07-23
MXY330 Breeze Airways 8 2026-04-26
MXY267 Breeze Airways 8 2026-07-24
MXY266 Breeze Airways 8 2026-07-24
MXY797 - 7 2026-07-14
MXY353 Breeze Airways 7 2026-04-26
MXY311 - 7 2026-07-16
MXY792 Breeze Airways 6 2026-07-20
MXY334 Breeze Airways 6 2026-04-20
MXY310 - 6 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MXY843 CHS → MCO Jul 26, 16:10 UTCJul 26, 17:55 UTC1h 45m
2026-07-26 MXY842 CHS → SWF Jul 26, 13:20 UTCJul 26, 14:55 UTC1h 35m
2026-07-26 MXY842 CHS → SWF Jul 26, 11:15 UTCJul 26, 12:05 UTC50m
2026-07-26 MXY2855 HPN → RDU Jul 26, 01:55 UTCJul 26, 03:20 UTC1h 25m
2026-07-25 MXY2855 HPN → RDU Jul 25, 23:05 UTCJul 26, 01:00 UTC1h 55m
2026-07-25 MXY2854 MCO → RDU Jul 25, 20:00 UTCJul 25, 21:50 UTC1h 50m
2026-07-25 MXY2854 MCO → RDU Jul 25, 17:20 UTCJul 25, 18:45 UTC1h 25m
2026-07-25 MXY257 CAK → PBI Jul 25, 13:55 UTCJul 25, 16:00 UTC2h 5m
2026-07-25 MXY256 MCO → LAN Jul 25, 10:25 UTCJul 25, 12:40 UTC2h 15m
2026-07-25 MXY833 HPN → GSP Jul 25, 00:50 UTCJul 25, 02:00 UTC1h 10m
2026-07-24 MXY833 HPN → GSP Jul 24, 23:00 UTCJul 25, 00:00 UTC1h 0m
2026-07-24 MXY832 GSP → HPN Jul 24, 20:45 UTCJul 24, 21:45 UTC1h 0m
2026-07-24 MXY832 GSP → HPN Jul 24, 18:35 UTCJul 24, 19:45 UTC1h 10m
2026-07-24 MXY267 HSV → MCO Jul 24, 16:05 UTCJul 24, 17:20 UTC1h 15m
2026-07-24 MXY266 MCO → HSV Jul 24, 13:35 UTCJul 24, 14:55 UTC1h 20m
2026-07-24 MXY246 CAK → MCO Jul 24, 10:00 UTCJul 24, 11:55 UTC1h 55m
2026-07-23 MXY746 RSW → CAK Jul 23, 23:35 UTCJul 24, 01:55 UTC2h 20m
2026-07-23 MXY747 CAK → RSW Jul 23, 20:25 UTCJul 23, 22:35 UTC2h 10m
2026-07-23 MXY122 CAK → LAX Jul 23, 17:10 UTCJul 23, 19:10 UTC2h 0m
2026-07-23 MXY122 CAK → LAX Jul 23, 15:15 UTCJul 23, 15:55 UTC40m
2026-07-23 MXY123 LAX → CAK Jul 23, 13:10 UTCJul 23, 13:45 UTC35m
2026-07-23 MXY123 LAX → CAK Jul 23, 10:15 UTCJul 23, 12:05 UTC1h 50m
2026-07-23 MXY247 MCO → CAK Jul 23, 00:30 UTCJul 23, 02:30 UTC2h 0m
2026-07-22 MXY1678 EVV → MCO Jul 22, 21:40 UTCJul 22, 23:10 UTC1h 30m
2026-07-22 MXY812 MCO → EVV Jul 22, 18:30 UTCJul 22, 20:05 UTC1h 35m
2026-07-22 MXY267 HSV → MCO Jul 22, 15:50 UTCJul 22, 17:05 UTC1h 15m
2026-07-22 MXY266 MCO → HSV Jul 22, 13:15 UTCJul 22, 14:40 UTC1h 25m
2026-07-22 MXY246 - Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-21 MXY122 CAK → LAX Jul 21, 19:15 UTCJul 21, 21:25 UTC2h 10m
2026-07-21 MXY122 CAK → LAX Jul 21, 17:20 UTCJul 21, 18:05 UTC45m
2026-07-21 MXY123 LAX → CAK Jul 21, 15:20 UTCJul 21, 15:55 UTC35m
2026-07-21 MXY123 LAX → CAK Jul 21, 12:15 UTCJul 21, 14:10 UTC1h 55m
2026-07-21 MXY953 ILM → CAK Jul 21, 01:05 UTCJul 21, 02:25 UTC1h 20m
2026-07-20 MXY953 ILM → CAK Jul 20, 22:35 UTCJul 21, 00:00 UTC1h 24m
2026-07-20 MXY952 CAK → ILM Jul 20, 20:05 UTCJul 20, 21:30 UTC1h 25m
2026-07-20 MXY952 CAK → ILM Jul 20, 17:15 UTCJul 20, 18:20 UTC1h 5m
2026-07-20 MXY792 PVD → CUN Jul 20, 14:50 UTCJul 20, 16:10 UTC1h 20m
2026-07-20 MXY792 PVD → CUN Jul 20, 12:05 UTCJul 20, 13:35 UTC1h 30m
2026-07-20 MXY408 TPA → SDF Jul 20, 00:30 UTCJul 20, 01:50 UTC1h 20m
2026-07-19 MXY408 TPA → SDF Jul 19, 21:40 UTCJul 19, 22:45 UTC1h 5m
2026-07-19 MXY1103 FLL → SAV Jul 19, 18:55 UTCJul 19, 20:25 UTC1h 30m
2026-07-19 MXY1103 FLL → SAV Jul 19, 16:45 UTCJul 19, 17:50 UTC1h 5m
2026-07-19 MXY1102 CAK → SAV Jul 19, 14:25 UTCJul 19, 15:35 UTC1h 10m
2026-07-19 MXY1102 CAK → SAV Jul 19, 11:20 UTCJul 19, 12:45 UTC1h 25m
2026-07-19 MXY871 - Jul 19, 01:00 UTCJul 19, 02:15 UTC1h 15m
2026-07-18 MXY870 CAK → MYR Jul 18, 17:45 UTCJul 18, 18:55 UTC1h 10m
2026-07-18 MXY792 CHS → CAK Jul 18, 15:10 UTCJul 18, 16:35 UTC1h 25m
2026-07-18 MXY792 - Jul 18, 12:10 UTCJul 18, 13:50 UTC1h 40m
2026-07-17 MXY909 DAB → RDU Jul 17, 23:00 UTCJul 18, 00:39 UTC1h 40m
2026-07-17 MXY909 DAB → RDU Jul 17, 20:29 UTCJul 17, 21:44 UTC1h 15m

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 N249BZ page for operator, model, and routing details .

Mode-S A2519F frequently asked

What is Mode-S code A2519F?
A2519F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N249BZ.
Where is Mode-S A2519F registered?
Mode-S code A2519F 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 A2519F broadcasting right now?
Yes. Mode-S A2519F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2519F, octal 50450637, decimal 10,637,727.
What flights does A2519F operate?
Mode-S A2519F has broadcast 20 distinct callsigns, including MXY408, MXY329, MXY246, MXY409, MXY247.