Apparatus

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sensors Mode-S transponder

ABD2A9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N861BB · EMBRAER ERJ-145 · operated by CORPORATE FLIGHT MANAGEMENT DBA, CONTOUR AVIATION

Hex
ABD2A9
Octal
52751251
Decimal
11,260,585
Country
US
Tail
N861BB
Type
E145
No current signal · last broadcast 3h ago
Flights observed
167
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S ABD2A9.

Country allocation

The ICAO 24-bit address ABD2A9 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
VTE3801 Corporate Flight Management 17 2026-05-21
VTE3415 Corporate Flight Management 17 2026-05-27
VTE3418 Corporate Flight Management 13 2026-05-26
VTE3417 Corporate Flight Management 13 2026-05-04
VTE3802 Corporate Flight Management 12 2026-05-29
VTE3934 Corporate Flight Management 11 2026-05-27
VTE3804 Corporate Flight Management 11 2026-05-19
VTE3936 Corporate Flight Management 10 2026-05-29
VTE3939 Corporate Flight Management 9 2026-05-27
VTE3416 Corporate Flight Management 9 2026-05-04
VTE3803 Corporate Flight Management 8 2026-05-29
VTE3937 Corporate Flight Management 7 2026-05-29
VTE3909 Corporate Flight Management 5 2026-05-20
VTE3908 Corporate Flight Management 5 2026-05-20
VTE5423 Corporate Flight Management 4 2026-05-07
VTE3424 - 3 2026-04-30
VTE3421 Corporate Flight Management 3 2026-05-01
VTE3423 Corporate Flight Management 2 2026-04-20
VTE3422 - 2 2026-04-20
VTE8861 Corporate Flight Management 1 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 VTE3936 BWI → MDT May 29, 21:00 UTCMay 29, 22:00 UTC1h 0m
2026-05-29 VTE3803 MSL → CLT May 29, 18:10 UTCMay 29, 19:15 UTC1h 5m
2026-05-29 VTE3802 CLT → MSL May 29, 15:25 UTCMay 29, 16:30 UTC1h 5m
2026-05-29 VTE3937 AOO → CLT May 29, 10:40 UTCMay 29, 11:55 UTC1h 15m
2026-05-28 VTE3936 BWI → MDT May 28, 21:50 UTCMay 28, 22:55 UTC1h 5m
2026-05-28 VTE3803 MSL → CLT May 28, 18:50 UTCMay 28, 19:50 UTC1h 0m
2026-05-28 VTE3802 CLT → MSL May 28, 15:10 UTCMay 28, 16:15 UTC1h 5m
2026-05-28 VTE3937 AOO → CLT May 28, 10:30 UTCMay 28, 11:45 UTC1h 15m
2026-05-27 VTE3936 BWI → MDT May 27, 20:55 UTCMay 27, 21:25 UTC30m
2026-05-27 VTE3939 AOO → CLT May 27, 18:10 UTCMay 27, 19:25 UTC1h 15m
2026-05-27 VTE3934 CLT → AOO May 27, 16:00 UTCMay 27, 16:30 UTC30m
2026-05-27 VTE3415 PKB → CLT May 27, 10:40 UTCMay 27, 11:30 UTC50m
2026-05-26 VTE3418 CLT → PKB May 26, 21:34 UTCMay 26, 22:35 UTC1h 0m
2026-05-26 VTE3937 AOO → CLT May 26, 16:15 UTCMay 26, 17:35 UTC1h 20m
2026-05-26 VTE6936 - May 26, 14:20 UTCMay 26, 15:14 UTC55m
2026-05-25 VTE3803 MSL → CLT May 25, 22:44 UTCMay 25, 23:49 UTC1h 5m
2026-05-25 VTE3802 CLT → MSL May 25, 20:50 UTCMay 25, 22:00 UTC1h 10m
2026-05-25 VTE8861 CLT → BKW May 25, 17:45 UTCMay 25, 19:05 UTC1h 20m
2026-05-24 VTE3936 BWI → MDT May 24, 21:00 UTCMay 24, 21:45 UTC45m
2026-05-24 VTE3803 MSL → CLT May 24, 18:20 UTCMay 24, 19:35 UTC1h 15m
2026-05-24 VTE3802 CLT → MSL May 24, 15:30 UTCMay 24, 16:45 UTC1h 15m
2026-05-24 VTE3937 AOO → CLT May 24, 10:45 UTCMay 24, 12:10 UTC1h 25m
2026-05-23 VTE3936 BWI → MDT May 23, 17:45 UTCMay 23, 18:45 UTC1h 1m
2026-05-23 VTE3937 AOO → CLT May 23, 14:00 UTCMay 23, 15:20 UTC1h 20m
2026-05-22 VTE3936 BWI → MDT May 22, 23:30 UTCMay 23, 00:35 UTC1h 5m
2026-05-22 VTE3939 AOO → CLT May 22, 19:35 UTCMay 22, 21:05 UTC1h 30m
2026-05-22 VTE3934 CLT → AOO May 22, 17:35 UTCMay 22, 18:20 UTC45m
2026-05-21 VTE3801 MSL → CLT May 21, 12:45 UTCMay 21, 13:40 UTC55m
2026-05-20 VTE3909 PNS → MSL May 20, 22:00 UTCMay 20, 22:50 UTC50m
2026-05-20 VTE3908 MSL → PNS May 20, 18:45 UTCMay 20, 18:55 UTC10m
2026-05-20 VTE3802 CLT → MSL May 20, 15:30 UTCMay 20, 16:35 UTC1h 5m
2026-05-20 VTE3801 MSL → CLT May 20, 12:40 UTCMay 20, 13:25 UTC45m
2026-05-19 VTE3804 CLT → MSL May 19, 22:25 UTCMay 19, 23:20 UTC55m
2026-05-19 VTE3803 MSL → CLT May 19, 18:15 UTCMay 19, 19:00 UTC45m
2026-05-19 VTE3802 CLT → MSL May 19, 15:30 UTCMay 19, 16:30 UTC1h 0m
2026-05-19 VTE3801 MSL → CLT May 19, 12:35 UTCMay 19, 13:40 UTC1h 5m
2026-05-18 VTE3804 CLT → MSL May 18, 22:35 UTCMay 18, 23:30 UTC55m
2026-05-18 VTE3939 AOO → CLT May 18, 19:20 UTCMay 18, 20:15 UTC55m
2026-05-18 VTE3934 CLT → AOO May 18, 16:15 UTCMay 18, 17:05 UTC50m
2026-05-18 VTE3801 MSL → CLT May 18, 12:50 UTCMay 18, 13:45 UTC55m
2026-05-17 VTE3804 CLT → MSL May 17, 22:40 UTCMay 17, 23:35 UTC55m
2026-05-17 VTE3939 AOO → CLT May 17, 19:20 UTCMay 17, 20:25 UTC1h 5m
2026-05-17 VTE3934 CLT → AOO May 17, 16:01 UTCMay 17, 16:50 UTC50m
2026-05-17 VTE3801 MSL → CLT May 17, 13:01 UTCMay 17, 13:55 UTC55m
2026-05-16 VTE3909 PNS → MSL May 16, 19:50 UTCMay 16, 20:40 UTC50m
2026-05-16 VTE3908 MSL → PNS May 16, 17:50 UTCMay 16, 18:30 UTC40m
2026-05-16 VTE3802 CLT → MSL May 16, 15:35 UTCMay 16, 16:31 UTC55m
2026-05-16 VTE3801 MSL → CLT May 16, 12:50 UTCMay 16, 13:35 UTC45m
2026-05-15 VTE3804 CLT → MSL May 15, 22:45 UTCMay 15, 23:40 UTC55m
2026-05-15 VTE3939 AOO → CLT May 15, 19:30 UTCMay 15, 20:10 UTC40m

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 N861BB page for operator, model, and routing details .

Mode-S ABD2A9 frequently asked

What is Mode-S code ABD2A9?
ABD2A9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N861BB.
Where is Mode-S ABD2A9 registered?
Mode-S code ABD2A9 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 ABD2A9 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABD2A9, octal 52751251, decimal 11,260,585.
What flights does ABD2A9 operate?
Mode-S ABD2A9 has broadcast 20 distinct callsigns, including VTE3801, VTE3415, VTE3418, VTE3417, VTE3802.