sensors Mode-S transponder

AB0B42

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N810VL · operated by UMB BANK NA TRUSTEE

Hex
AB0B42
Octal
52605502
Decimal
11,209,538
Country
US
Tail
N810VL
Type
B738
No current signal · last broadcast 15h ago
Flights observed
10
Distinct callsigns
8
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S AB0B42.

Country allocation

The ICAO 24-bit address AB0B42 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 8 distinct

Callsign Airline Flights Last seen
VXP724 - 2 2026-04-13
VXP323 - 2 2026-04-13
VXP9613 - 1 2026-04-12
VXP9404 - 1 2026-04-13
VXP725 - 1 2026-04-13
VXP719 - 1 2026-04-14
VXP324 - 1 2026-04-13
VXP307 Mali Air Express 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 VXP719 - Apr 14, 10:35 UTCApr 14, 11:05 UTC30m
2026-04-13 VXP307 HVN → SRQ Apr 13, 20:05 UTCApr 13, 20:10 UTC5m
2026-04-13 VXP324 - Apr 13, 16:40 UTCApr 13, 19:05 UTC2h 25m
2026-04-13 VXP323 - Apr 13, 12:20 UTCApr 13, 14:35 UTC2h 15m
2026-04-13 VXP323 - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 VXP725 BNA → HVN Apr 13, 05:10 UTCApr 13, 06:55 UTC1h 45m
2026-04-13 VXP724 - Apr 13, 03:55 UTCApr 13, 04:00 UTC5m
2026-04-13 VXP724 HVN → BNA Apr 13, 01:55 UTCApr 13, 04:00 UTC2h 5m
2026-04-13 VXP9404 - Apr 13, 00:20 UTCApr 13, 01:00 UTC40m
2026-04-12 VXP9613 - Apr 12, 18:25 UTCApr 12, 20:15 UTC1h 50m

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 N810VL page for operator, model, and routing details .

Mode-S AB0B42 frequently asked

What is Mode-S code AB0B42?
AB0B42 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N810VL.
Where is Mode-S AB0B42 registered?
Mode-S code AB0B42 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 AB0B42 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB0B42, octal 52605502, decimal 11,209,538.
What flights does AB0B42 operate?
Mode-S AB0B42 has broadcast 8 distinct callsigns, including VXP724, VXP323, VXP9613, VXP9404, VXP725.