Apparatus

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sensors Mode-S transponder

AA70B1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N772CK · BOEING 777-200LR · operated by DAE 35607 TRUST

Hex
AA70B1
Octal
52470261
Decimal
11,169,969
Country
US
Tail
N772CK
Type
B77L
No current signal · last broadcast 1h ago
Flights observed
131
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AA70B1.

Country allocation

The ICAO 24-bit address AA70B1 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
CKS241 Kalitta Air 16 2026-05-28
CKS255 Kalitta Air 11 2026-05-26
CKS254 Kalitta Air 10 2026-05-23
CKS204 Kalitta Air 9 2026-05-25
CKS281 Kalitta Air 7 2026-04-14
CKS273 Kalitta Air 6 2026-05-17
CKS240 Kalitta Air 6 2026-05-27
CKS200 - 6 2026-04-18
CKS280 - 5 2026-04-13
CKS253 Kalitta Air 5 2026-05-11
CKS270 Kalitta Air 4 2026-05-13
CKS264 Kalitta Air 4 2026-05-07
CKS263 Kalitta Air 3 2026-05-07
CKS252 Kalitta Air 3 2026-04-24
CKS234 Kalitta Air 3 2026-05-02
CKS206 Kalitta Air 3 2026-05-11
CKS295 Kalitta Air 2 2026-04-19
CKS293 Kalitta Air 2 2026-04-23
CKS292 Kalitta Air 2 2026-04-22
CKS272 Kalitta Air 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CKS202 SYD → SIN May 29, 17:45 UTCMay 29, 23:45 UTC6h 0m
2026-05-28 CKS241 MIA → CVG May 28, 21:30 UTCMay 28, 23:35 UTC2h 5m
2026-05-28 CKS241 MIA → CVG May 28, 11:05 UTCMay 28, 18:45 UTC7h 40m
2026-05-28 CKS241 MIA → CVG May 28, 00:10 UTCMay 28, 09:35 UTC9h 25m
2026-05-27 CKS240 CVG → ICN May 27, 18:55 UTCMay 27, 19:05 UTC10m
2026-05-27 CKS240 CVG → ICN May 27, 09:00 UTCMay 27, 18:20 UTC9h 20m
2026-05-27 CKS240 CVG → ICN May 27, 00:14 UTCMay 27, 06:29 UTC6h 15m
2026-05-26 CKS255 CVG → LAX May 26, 20:05 UTCMay 26, 21:34 UTC1h 30m
2026-05-26 CKS255 CVG → LAX May 26, 16:30 UTCMay 26, 17:35 UTC1h 5m
2026-05-25 CKS255 CVG → LAX May 25, 23:30 UTCMay 26, 14:30 UTC15h 0m
2026-05-25 CKS204 AMS → ATL May 25, 16:25 UTCMay 25, 16:40 UTC15m
2026-05-25 CKS204 AMS → ATL May 25, 13:00 UTCMay 25, 15:50 UTC2h 50m
2026-05-24 CKS204 AMS → ATL May 24, 23:00 UTCMay 25, 10:40 UTC11h 40m
2026-05-24 CKS201 SIN → SYD May 24, 12:20 UTCMay 24, 17:50 UTC5h 30m
2026-05-24 CKS201 SIN → SYD May 24, 00:35 UTCMay 24, 10:05 UTC9h 30m
2026-05-23 CKS254 LEJ → CVG May 23, 15:20 UTCMay 23, 18:15 UTC2h 56m
2026-05-23 CKS254 LEJ → CVG May 23, 10:30 UTCMay 23, 11:05 UTC35m
2026-05-22 CKS254 LEJ → CVG May 22, 21:05 UTCMay 23, 09:55 UTC12h 49m
2026-05-22 CKS209 JFK → BAH May 22, 12:05 UTCMay 22, 18:10 UTC6h 5m
2026-05-22 CKS209 JFK → BAH May 22, 00:40 UTCMay 22, 10:05 UTC9h 25m
2026-05-21 CKS208 JFK → IAH May 21, 12:50 UTCMay 21, 17:05 UTC4h 15m
2026-05-20 CKS208 JFK → IAH May 20, 21:25 UTCMay 21, 10:25 UTC13h 0m
2026-05-20 CKS241 MIA → CVG May 20, 00:20 UTCMay 20, 02:25 UTC2h 5m
2026-05-19 CKS241 MIA → CVG May 19, 14:10 UTCMay 19, 21:15 UTC7h 5m
2026-05-19 CKS241 MIA → CVG May 19, 02:30 UTCMay 19, 11:50 UTC9h 20m
2026-05-18 CKS204 AMS → ATL May 18, 18:00 UTCMay 18, 18:20 UTC20m
2026-05-18 CKS204 AMS → ATL May 18, 14:35 UTCMay 18, 17:25 UTC2h 50m
2026-05-17 CKS204 AMS → ATL May 17, 23:15 UTCMay 18, 11:40 UTC12h 25m
2026-05-17 CKS273 HKG → ANC May 17, 14:35 UTCMay 17, 20:20 UTC5h 45m
2026-05-17 CKS273 HKG → ANC May 17, 02:30 UTCMay 17, 12:20 UTC9h 50m
2026-05-16 CKS273 HKG → ANC May 16, 13:46 UTCMay 16, 23:25 UTC9h 40m
2026-05-16 CKS273 HKG → ANC May 16, 07:20 UTCMay 16, 11:16 UTC3h 55m
2026-05-15 CKS272 CVG → NGO May 15, 16:10 UTCMay 15, 20:30 UTC4h 20m
2026-05-15 CKS272 CVG → NGO May 15, 04:20 UTCMay 15, 04:35 UTC15m
2026-05-14 CKS273 HKG → ANC May 14, 23:20 UTCMay 14, 23:50 UTC30m
2026-05-14 CKS273 HKG → ANC May 14, 14:10 UTCMay 14, 16:20 UTC2h 10m
2026-05-14 CKS271 MIA → VCP May 14, 07:15 UTCMay 14, 11:05 UTC3h 50m
2026-05-13 CKS270 CVG → NGO May 13, 08:35 UTCMay 14, 01:00 UTC16h 25m
2026-05-13 CKS270 CVG → NGO May 13, 03:55 UTCMay 13, 04:10 UTC15m
2026-05-13 CKS270 CVG → NGO May 13, 00:10 UTCMay 13, 03:15 UTC3h 5m
2026-05-12 CKS270 CVG → NGO May 12, 08:50 UTCMay 12, 22:01 UTC13h 10m
2026-05-11 CKS253 CVG → EMA May 11, 21:15 UTCMay 11, 22:35 UTC1h 19m
2026-05-11 CKS253 CVG → EMA May 11, 10:00 UTCMay 11, 19:35 UTC9h 35m
2026-05-11 CKS206 KWI → AMS May 11, 07:30 UTCMay 11, 07:40 UTC10m
2026-05-11 CKS206 KWI → AMS May 11, 04:45 UTCMay 11, 06:50 UTC2h 5m
2026-05-10 CKS206 KWI → AMS May 10, 09:50 UTCMay 11, 00:00 UTC14h 10m
2026-05-09 CKS248 LEJ → CVG May 9, 22:15 UTCMay 10, 07:19 UTC9h 5m
2026-05-09 CKS248 LEJ → CVG May 9, 10:35 UTCMay 9, 14:15 UTC3h 40m
2026-05-09 CKS247 CVG → LEJ May 9, 03:55 UTCMay 9, 07:10 UTC3h 15m
2026-05-08 CKS247 CVG → LEJ May 8, 11:44 UTCMay 8, 19:30 UTC7h 45m

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 N772CK page for operator, model, and routing details .

Mode-S AA70B1 frequently asked

What is Mode-S code AA70B1?
AA70B1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N772CK.
Where is Mode-S AA70B1 registered?
Mode-S code AA70B1 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 AA70B1 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA70B1, octal 52470261, decimal 11,169,969.
What flights does AA70B1 operate?
Mode-S AA70B1 has broadcast 20 distinct callsigns, including CKS241, CKS255, CKS254, CKS204, CKS281.