Apparatus

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sensors Mode-S transponder

AD8B61

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N972DC · EMBRAER ERJ-145 · operated by CBG LLC

Hex
AD8B61
Octal
53305541
Decimal
11,373,409
Country
US
Tail
N972DC
Type
E145
No current signal · last broadcast 2h ago
Flights observed
192
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AD8B61.

Country allocation

The ICAO 24-bit address AD8B61 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
LYM5110 Key Lime Air 17 2026-05-12
LYM5107 Key Lime Air 16 2026-05-12
LYM5115 Key Lime Air 15 2026-05-12
LYM5111 Key Lime Air 14 2026-05-12
LYM5112 Key Lime Air 13 2026-05-11
LYM5120 Key Lime Air 12 2026-05-10
LYM5730 Key Lime Air 11 2026-05-22
LYM3912 Key Lime Air 11 2026-05-22
LYM3914 Key Lime Air 10 2026-05-22
LYM5775 Key Lime Air 9 2026-05-21
LYM5745 Key Lime Air 9 2026-05-21
LYM5880 Key Lime Air 7 2026-05-21
LYM5760 Key Lime Air 7 2026-05-21
LYM5882 Key Lime Air 6 2026-05-22
LYM5870 Key Lime Air 6 2026-05-21
LYM5872 Key Lime Air 5 2026-05-21
LYM5418 Key Lime Air 3 2026-05-29
LYM5414 Key Lime Air 2 2026-05-28
LYM5411 Key Lime Air 2 2026-05-28
LYM5407 Key Lime Air 2 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 LYM5418 DEN → CVN May 29, 23:05 UTCMay 29, 23:50 UTC45m
2026-05-29 LYM3581 ALS → DEN May 29, 14:10 UTCMay 29, 14:35 UTC25m
2026-05-28 LYM3587 DEN → ALS May 28, 23:55 UTCMay 29, 00:15 UTC20m
2026-05-28 LYM4803 PUB → DEN May 28, 22:10 UTCMay 28, 22:40 UTC30m
2026-05-28 LYM4802 DEN → PUB May 28, 21:10 UTCMay 28, 21:30 UTC20m
2026-05-28 LYM5414 CVN → DEN May 28, 18:25 UTCMay 28, 19:20 UTC55m
2026-05-28 LYM5411 DFW → CVN May 28, 16:25 UTCMay 28, 17:20 UTC55m
2026-05-28 LYM5407 CVN → DFW May 28, 14:20 UTCMay 28, 15:20 UTC1h 0m
2026-05-28 LYM5418 DEN → CVN May 28, 01:40 UTCMay 28, 02:25 UTC45m
2026-05-27 LYM3585 ALS → DEN May 27, 20:10 UTCMay 27, 20:40 UTC30m
2026-05-27 LYM3583 DEN → ALS May 27, 18:45 UTCMay 27, 19:10 UTC25m
2026-05-26 LYM4803 PUB → DEN May 26, 22:59 UTCMay 26, 23:29 UTC30m
2026-05-26 LYM4802 DEN → PUB May 26, 22:09 UTCMay 26, 22:29 UTC20m
2026-05-26 LYM5414 CVN → DEN May 26, 20:15 UTCMay 26, 21:09 UTC55m
2026-05-26 LYM5411 DFW → CVN May 26, 18:19 UTCMay 26, 19:15 UTC55m
2026-05-26 LYM5407 CVN → DFW May 26, 14:24 UTCMay 26, 15:14 UTC50m
2026-05-25 LYM5418 DEN → CVN May 25, 23:14 UTCMay 26, 00:14 UTC1h 0m
2026-05-25 LYM3585 ALS → DEN May 25, 20:15 UTCMay 25, 20:50 UTC35m
2026-05-25 LYM3583 DEN → ALS May 25, 18:55 UTCMay 25, 19:25 UTC30m
2026-05-23 LYM227 DEN → MKL May 23, 19:15 UTCMay 23, 21:25 UTC2h 10m
2026-05-22 LYM5882 ORD → MKL May 22, 21:50 UTCMay 22, 22:55 UTC1h 5m
2026-05-22 LYM3914 IWD → ORD May 22, 19:50 UTCMay 22, 20:55 UTC1h 5m
2026-05-22 LYM3912 ORD → IWD May 22, 18:15 UTCMay 22, 18:55 UTC40m
2026-05-22 LYM5730 MKG → ORD May 22, 12:30 UTCMay 22, 13:00 UTC30m
2026-05-21 LYM5775 ORD → MKG May 21, 23:20 UTCMay 21, 23:40 UTC20m
2026-05-21 LYM5760 MKG → ORD May 21, 21:25 UTCMay 21, 22:15 UTC50m
2026-05-21 LYM5745 ORD → MKG May 21, 19:55 UTCMay 21, 20:20 UTC25m
2026-05-21 LYM5880 MKL → ORD May 21, 17:00 UTCMay 21, 18:35 UTC1h 35m
2026-05-21 LYM5872 ATL → MKL May 21, 15:30 UTCMay 21, 16:15 UTC45m
2026-05-21 LYM5870 MKL → ATL May 21, 13:20 UTCMay 21, 14:10 UTC50m
2026-05-20 LYM5882 ORD → MKL May 20, 22:00 UTCMay 20, 23:00 UTC1h 0m
2026-05-20 LYM3914 IWD → ORD May 20, 19:50 UTCMay 20, 20:55 UTC1h 5m
2026-05-20 LYM3912 ORD → IWD May 20, 18:05 UTCMay 20, 18:45 UTC40m
2026-05-20 LYM5730 MKG → ORD May 20, 12:40 UTCMay 20, 13:10 UTC30m
2026-05-19 LYM5775 ORD → MKG May 19, 23:35 UTCMay 20, 00:05 UTC30m
2026-05-19 LYM3914 IWD → ORD May 19, 19:45 UTCMay 19, 20:45 UTC1h 0m
2026-05-19 LYM3912 ORD → IWD May 19, 18:05 UTCMay 19, 18:45 UTC40m
2026-05-19 LYM5730 MKG → ORD May 19, 13:20 UTCMay 19, 13:50 UTC30m
2026-05-19 LYM5775 ORD → MKG May 19, 01:30 UTCMay 19, 01:55 UTC25m
2026-05-18 LYM5745 ORD → MKG May 18, 23:15 UTCMay 19, 00:40 UTC1h 25m
2026-05-18 LYM3914 IWD → ORD May 18, 21:15 UTCMay 18, 22:10 UTC55m
2026-05-18 LYM3912 ORD → IWD May 18, 19:00 UTCMay 18, 19:40 UTC40m
2026-05-18 LYM5730 MKG → ORD May 18, 12:25 UTCMay 18, 12:55 UTC30m
2026-05-17 LYM5775 ORD → MKG May 17, 23:20 UTCMay 17, 23:45 UTC25m
2026-05-17 LYM5760 MKG → ORD May 17, 21:35 UTCMay 17, 22:05 UTC30m
2026-05-17 LYM5745 ORD → MKG May 17, 20:25 UTCMay 17, 20:50 UTC25m
2026-05-17 LYM5880 MKL → ORD May 17, 18:01 UTCMay 17, 19:30 UTC1h 30m
2026-05-17 LYM5872 ATL → MKL May 17, 16:20 UTCMay 17, 17:05 UTC45m
2026-05-17 LYM5870 MKL → ATL May 17, 13:05 UTCMay 17, 13:50 UTC45m
2026-05-16 LYM5882 ORD → MKL May 16, 21:50 UTCMay 16, 23:00 UTC1h 10m

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 N972DC page for operator, model, and routing details .

Mode-S AD8B61 frequently asked

What is Mode-S code AD8B61?
AD8B61 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N972DC.
Where is Mode-S AD8B61 registered?
Mode-S code AD8B61 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 AD8B61 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD8B61, octal 53305541, decimal 11,373,409.
What flights does AD8B61 operate?
Mode-S AD8B61 has broadcast 20 distinct callsigns, including LYM5110, LYM5107, LYM5115, LYM5111, LYM5112.