sensors Mode-S transponder
AA86FB
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N778CK · BOEING 777-300ER · operated by BANK OF UTAH TRUSTEE
- Hex
- AA86FB
- Octal
- 52503373
- Decimal
- 11,175,675
- Country
- US
- Tail
- N778CK
- Type
- B77W
- Flights observed
- 188
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 21h ago
Last known position
Country allocation
The ICAO 24-bit address AA86FB 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 |
|---|---|---|---|
| CKS217 | - | 18 | 2026-07-09 |
| CKS979 | Kalitta Air | 16 | 2026-05-10 |
| CKS234 | - | 15 | 2026-07-10 |
| CKS910 | Kalitta Air | 13 | 2026-05-08 |
| CKS216 | - | 13 | 2026-07-09 |
| CKS916 | Kalitta Air | 12 | 2026-05-07 |
| CKS915 | Kalitta Air | 12 | 2026-05-08 |
| CKS235 | - | 12 | 2026-07-05 |
| CKS919 | Kalitta Air | 11 | 2026-05-09 |
| CKS970 | Kalitta Air | 8 | 2026-05-10 |
| CKS255 | Kalitta Air | 7 | 2026-05-31 |
| CKS241 | - | 7 | 2026-07-13 |
| CKS219 | Kalitta Air | 6 | 2026-05-27 |
| CKS218 | Kalitta Air | 6 | 2026-05-29 |
| CKS254 | Kalitta Air | 5 | 2026-05-20 |
| CKS206 | - | 5 | 2026-07-11 |
| CKS240 | Kalitta Air | 3 | 2026-06-08 |
| CKS295 | Kalitta Air | 2 | 2026-05-17 |
| CKS286 | Kalitta Air | 2 | 2026-06-10 |
| CKS285 | Kalitta Air | 2 | 2026-06-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CKS241 | - | Jul 13, 05:05 UTC | Jul 13, 07:01 UTC | 1h 55m |
| 2026-07-12 | CKS241 | - | Jul 12, 19:25 UTC | Jul 13, 02:40 UTC | 7h 15m |
| 2026-07-12 | CKS241 | HKG → ANC | Jul 12, 08:01 UTC | Jul 12, 17:25 UTC | 9h 25m |
| 2026-07-11 | CKS206 | - | Jul 11, 06:35 UTC | Jul 11, 07:10 UTC | 35m |
| 2026-07-11 | CKS206 | - | Jul 11, 03:05 UTC | Jul 11, 04:35 UTC | 1h 30m |
| 2026-07-10 | CKS234 | - | Jul 10, 11:55 UTC | Jul 11, 00:35 UTC | 12h 40m |
| 2026-07-09 | CKS217 | - | Jul 9, 17:35 UTC | Jul 10, 05:05 UTC | 11h 30m |
| 2026-07-09 | CKS217 | - | Jul 9, 13:30 UTC | Jul 9, 14:45 UTC | 1h 15m |
| 2026-07-09 | CKS216 | - | Jul 9, 03:30 UTC | Jul 9, 05:20 UTC | 1h 50m |
| 2026-07-08 | CKS216 | - | Jul 8, 11:55 UTC | Jul 9, 01:00 UTC | 13h 5m |
| 2026-07-07 | CKS217 | - | Jul 7, 17:10 UTC | Jul 8, 04:40 UTC | 11h 30m |
| 2026-07-07 | CKS217 | - | Jul 7, 13:20 UTC | Jul 7, 14:35 UTC | 1h 15m |
| 2026-07-06 | CKS216 | - | Jul 6, 20:50 UTC | Jul 7, 10:15 UTC | 13h 25m |
| 2026-07-05 | CKS235 | - | Jul 5, 22:30 UTC | Jul 6, 00:35 UTC | 2h 5m |
| 2026-07-05 | CKS235 | - | Jul 5, 12:15 UTC | Jul 5, 19:30 UTC | 7h 15m |
| 2026-07-04 | CKS235 | HKG → ANC | Jul 4, 23:35 UTC | Jul 5, 09:10 UTC | 9h 35m |
| 2026-07-04 | CKS234 | - | Jul 4, 14:45 UTC | Jul 4, 18:35 UTC | 3h 50m |
| 2026-07-04 | CKS234 | CVG → NRT | Jul 4, 00:25 UTC | Jul 4, 13:20 UTC | 12h 55m |
| 2026-07-02 | CKS217 | - | Jul 2, 17:20 UTC | Jul 3, 05:25 UTC | 12h 5m |
| 2026-07-02 | CKS217 | - | Jul 2, 13:45 UTC | Jul 2, 14:55 UTC | 1h 10m |
| 2026-07-02 | CKS216 | - | Jul 2, 01:30 UTC | Jul 2, 03:25 UTC | 1h 55m |
| 2026-07-01 | CKS216 | - | Jul 1, 10:50 UTC | Jul 1, 22:55 UTC | 12h 5m |
| 2026-06-30 | CKS217 | - | Jun 30, 18:25 UTC | Jul 1, 05:55 UTC | 11h 30m |
| 2026-06-30 | CKS217 | - | Jun 30, 14:00 UTC | Jun 30, 15:15 UTC | 1h 15m |
| 2026-06-29 | CKS216 | - | Jun 29, 21:05 UTC | Jun 30, 10:30 UTC | 13h 26m |
| 2026-06-28 | CKS235 | - | Jun 28, 22:49 UTC | Jun 29, 00:54 UTC | 2h 5m |
| 2026-06-28 | CKS235 | - | Jun 28, 11:35 UTC | Jun 28, 19:09 UTC | 7h 35m |
| 2026-06-27 | CKS235 | HKG → ANC | Jun 27, 23:39 UTC | Jun 28, 08:55 UTC | 9h 15m |
| 2026-06-27 | CKS234 | - | Jun 27, 15:14 UTC | Jun 27, 15:34 UTC | 20m |
| 2026-06-27 | CKS234 | - | Jun 27, 11:35 UTC | Jun 27, 14:39 UTC | 3h 5m |
| 2026-06-26 | CKS234 | - | Jun 26, 12:00 UTC | Jun 27, 00:29 UTC | 12h 30m |
| 2026-06-25 | CKS217 | - | Jun 25, 17:09 UTC | Jun 26, 04:24 UTC | 11h 15m |
| 2026-06-25 | CKS217 | - | Jun 25, 13:20 UTC | Jun 25, 14:39 UTC | 1h 20m |
| 2026-06-25 | CKS216 | - | Jun 25, 01:30 UTC | Jun 25, 03:29 UTC | 2h 0m |
| 2026-06-24 | CKS216 | - | Jun 24, 10:30 UTC | Jun 24, 22:39 UTC | 12h 10m |
| 2026-06-23 | CKS217 | - | Jun 23, 17:25 UTC | Jun 24, 04:55 UTC | 11h 30m |
| 2026-06-23 | CKS217 | - | Jun 23, 13:34 UTC | Jun 23, 14:49 UTC | 1h 15m |
| 2026-06-22 | CKS216 | - | Jun 22, 20:24 UTC | Jun 23, 09:45 UTC | 13h 20m |
| 2026-06-22 | CKS235 | HKG → ANC | Jun 22, 07:14 UTC | Jun 22, 09:14 UTC | 2h 0m |
| 2026-06-21 | CKS235 | HKG → ANC | Jun 21, 21:29 UTC | Jun 22, 04:54 UTC | 7h 25m |
| 2026-06-21 | CKS235 | HKG → ANC | Jun 21, 09:00 UTC | Jun 21, 18:44 UTC | 9h 45m |
| 2026-06-20 | CKS234 | MXP → EWR | Jun 20, 10:59 UTC | Jun 20, 11:14 UTC | 15m |
| 2026-06-20 | CKS234 | MXP → EWR | Jun 20, 07:29 UTC | Jun 20, 10:25 UTC | 2h 55m |
| 2026-06-19 | CKS234 | MXP → EWR | Jun 19, 12:49 UTC | Jun 20, 00:59 UTC | 12h 10m |
| 2026-06-18 | CKS217 | - | Jun 18, 17:55 UTC | Jun 19, 05:40 UTC | 11h 44m |
| 2026-06-18 | CKS217 | - | Jun 18, 14:25 UTC | Jun 18, 15:45 UTC | 1h 20m |
| 2026-06-18 | CKS216 | NRT → ICN | Jun 18, 01:35 UTC | Jun 18, 03:40 UTC | 2h 5m |
| 2026-06-17 | CKS216 | - | Jun 17, 10:20 UTC | Jun 17, 22:50 UTC | 12h 30m |
| 2026-06-16 | CKS217 | - | Jun 16, 17:30 UTC | Jun 17, 04:50 UTC | 11h 21m |
| 2026-06-16 | CKS217 | - | Jun 16, 13:25 UTC | Jun 16, 14:45 UTC | 1h 20m |
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 N778CK page for operator, model, and routing details .