Apparatus

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sensors Mode-S transponder

ADF64C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N999YV · BOEING 767-200 · operated by BANK OF UTAH TRUSTEE

Hex
ADF64C
Octal
53373114
Decimal
11,400,780
Country
US
Tail
N999YV
Type
B762
Broadcasting now · callsign CSB2501 · 37,000 ft
Flights observed
77
Distinct callsigns
20
Country
US
Last broadcast
17h ago

Current position

ADF64C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ADF64C 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
CSB7524 - 14 2026-07-07
CSB7523 - 12 2026-07-07
CSB7511 21 Air 6 2026-06-15
CSB7507 - 6 2026-07-12
CSB7506 21 Air 4 2026-06-02
CSB7501 - 4 2026-07-12
CSB4281 21 Air 4 2026-06-04
CSB1357 - 3 2026-07-13
CSB1351 - 3 2026-07-13
CSB7509 21 Air 2 2026-06-08
CSB7504 - 2 2026-06-15
CSB1517 - 2 2026-06-21
00000000 - 2 2026-07-06
CSB9250 21 Air 1 2026-05-22
CSB9150 21 Air 1 2026-05-21
CSB7650 21 Air 1 2026-06-02
CSB7515 21 Air 1 2026-06-02
CSB5351 - 1 2026-07-09
CSB5311 - 1 2026-07-09
CSB4589 - 1 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSB1357 - Jul 13, 19:05 UTCJul 13, 21:05 UTC2h 0m
2026-07-13 CSB1351 - Jul 13, 04:40 UTCJul 13, 06:40 UTC2h 0m
2026-07-12 CSB7507 - Jul 12, 19:45 UTCJul 12, 21:55 UTC2h 10m
2026-07-12 CSB7501 - Jul 12, 04:50 UTCJul 12, 06:50 UTC2h 0m
2026-07-11 CSB2501 - Jul 11, 14:00 UTCJul 11, 22:35 UTC8h 35m
2026-07-09 CSB5351 - Jul 9, 13:30 UTCJul 10, 00:30 UTC11h 0m
2026-07-09 CSB5311 - Jul 9, 02:15 UTCJul 9, 04:20 UTC2h 5m
2026-07-07 CSB7524 - Jul 7, 08:35 UTCJul 7, 10:25 UTC1h 50m
2026-07-07 CSB7523 - Jul 7, 04:50 UTCJul 7, 06:20 UTC1h 30m
2026-07-06 CSB7524 - Jul 6, 08:55 UTCJul 6, 10:40 UTC1h 45m
2026-07-06 00000000 - Jul 6, 05:10 UTCJul 6, 06:40 UTC1h 30m
2026-07-04 CSB7524 - Jul 4, 08:35 UTCJul 4, 10:15 UTC1h 40m
2026-07-04 CSB7523 CVG → MHT Jul 4, 04:40 UTCJul 4, 06:20 UTC1h 40m
2026-07-03 CSB4589 - Jul 3, 23:15 UTCJul 4, 00:35 UTC1h 20m
2026-07-03 CSB4588 - Jul 3, 19:10 UTCJul 3, 20:30 UTC1h 20m
2026-07-03 CSB7524 - Jul 3, 08:50 UTCJul 3, 10:25 UTC1h 35m
2026-07-03 CSB7523 CVG → MHT Jul 3, 04:50 UTCJul 3, 06:20 UTC1h 30m
2026-07-02 CSB7524 - Jul 2, 09:10 UTCJul 2, 10:45 UTC1h 35m
2026-07-02 CSB7523 CVG → MHT Jul 2, 05:20 UTCJul 2, 07:00 UTC1h 40m
2026-07-01 CSB7524 - Jul 1, 08:40 UTCJul 1, 10:20 UTC1h 40m
2026-07-01 CSB7523 - Jul 1, 05:05 UTCJul 1, 06:35 UTC1h 30m
2026-06-30 CSB7524 - Jun 30, 08:30 UTCJun 30, 10:10 UTC1h 40m
2026-06-30 CSB7523 - Jun 30, 05:05 UTCJun 30, 06:40 UTC1h 35m
2026-06-29 CSB7524 - Jun 29, 08:35 UTCJun 29, 10:15 UTC1h 40m
2026-06-29 CSB7523 - Jun 29, 04:55 UTCJun 29, 06:29 UTC1h 35m
2026-06-28 CSB7524 - Jun 28, 08:14 UTCJun 28, 10:00 UTC1h 45m
2026-06-28 CSB7523 - Jun 28, 04:29 UTCJun 28, 06:00 UTC1h 30m
2026-06-27 CSB7524 - Jun 27, 08:25 UTCJun 27, 10:10 UTC1h 45m
2026-06-27 CSB7523 - Jun 27, 04:59 UTCJun 27, 06:25 UTC1h 25m
2026-06-26 CSB7524 - Jun 26, 08:10 UTCJun 26, 09:55 UTC1h 45m
2026-06-26 CSB7523 - Jun 26, 04:34 UTCJun 26, 06:00 UTC1h 25m
2026-06-25 CSB7524 - Jun 25, 08:14 UTCJun 25, 10:04 UTC1h 50m
2026-06-25 CSB7523 - Jun 25, 04:35 UTCJun 25, 06:00 UTC1h 25m
2026-06-24 CSB7524 - Jun 24, 08:14 UTCJun 24, 09:55 UTC1h 40m
2026-06-24 CSB7523 CVG → MHT Jun 24, 04:24 UTCJun 24, 05:54 UTC1h 30m
2026-06-23 CSB7524 - Jun 23, 08:50 UTCJun 23, 10:44 UTC1h 55m
2026-06-23 00000000 - Jun 23, 04:39 UTCJun 23, 06:04 UTC1h 25m
2026-06-21 CSB1517 AUS → CVG Jun 21, 13:34 UTCJun 21, 15:34 UTC2h 0m
2026-06-21 CSB1517 - Jun 21, 07:59 UTCJun 21, 09:59 UTC2h 0m
2026-06-19 CSB7501 - Jun 19, 04:34 UTCJun 19, 06:39 UTC2h 5m
2026-06-18 CSB7507 BWI → MIA Jun 18, 19:25 UTCJun 18, 21:30 UTC2h 5m
2026-06-18 CSB7501 - Jun 18, 04:35 UTCJun 18, 06:50 UTC2h 15m
2026-06-17 CSB4450 - Jun 17, 12:05 UTCJun 17, 14:05 UTC2h 0m
2026-06-17 CSB1351 HWO → CVG Jun 17, 04:45 UTCJun 17, 06:45 UTC2h 0m
2026-06-16 CSB1357 - Jun 16, 19:15 UTCJun 16, 21:20 UTC2h 6m
2026-06-16 CSB1351 - Jun 16, 04:55 UTCJun 16, 06:59 UTC2h 5m
2026-06-15 CSB1357 - Jun 15, 19:10 UTCJun 15, 21:09 UTC2h 0m
2026-06-15 CSB7504 - Jun 15, 07:29 UTCJun 15, 09:35 UTC2h 5m
2026-06-15 CSB7511 MIA → BWI Jun 15, 02:15 UTCJun 15, 04:25 UTC2h 10m
2026-06-09 CSB7501 MIA → CVG Jun 9, 04:55 UTCJun 9, 07:00 UTC2h 5m

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 N999YV page for operator, model, and routing details .

Mode-S ADF64C frequently asked

What is Mode-S code ADF64C?
ADF64C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N999YV.
Where is Mode-S ADF64C registered?
Mode-S code ADF64C 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 ADF64C broadcasting right now?
Yes. Mode-S ADF64C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADF64C, octal 53373114, decimal 11,400,780.
What flights does ADF64C operate?
Mode-S ADF64C has broadcast 20 distinct callsigns, including CSB7524, CSB7523, CSB7511, CSB7507, CSB7506.