Registry change
FAA registration first observed
Not listed → CRUISING ALTITUDE LLC
Gulfstream G650ER registered to CB Air LLC. Linked to Steve Ballmer by WA Secretary of State (officer Steven Ballmer).
Airframe passport
The current identity we can safely join across FAA registration and movement records. Each claim keeps its source boundary visible.
registry confirmed
Owner mismatchFAA says CRUISING ALTITUDE LLC; JetSweep says CB Air LLC.
Registry claim
GULFSTREAM AEROSPACE CORP GVIII-G800 registered to Cruising Altitude LLC.
FAA Registry N709DS · snapshot Aug 10, 2026 ↗Identity
Current tail
N709DS
Mode-S
A97659
Serial
88024
Aliases
N709DS · A97659 · 88024
Registration
Owner
CRUISING ALTITUDE LLC
Status
Valid
Location
SEATTLE, WA
Certificate
Mar 23, 2026
Airframe
Type
GULFSTREAM AEROSPACE CORP GVIII-G800
Year
2025
Seats
9
Engine
ROLLS DEUT BR700-730B214
Evidence history
A permanent timeline of exact-aircraft FAA observations. Registry changes and indexed filings share the chronology, but filings are not treated as the cause of a registry change.
Registry snapshot difference Exact-tail FAA document index
Where it flies
Every leg this tail has flown — brighter where it flies most. Home field is ringed.
Airport routes
Seattle, WA
Home base · 36% of legs
15
Airports visited
Seattle, WA ↔ Portland, OR
Busiest corridor · 5 trips
28
Trips tracked · latest trip Aug 10, 2026
2026-06 → 2026-08
Tracked span
Flight history
Every tracked trip with route and shape. Event tags mark calendar-linked trips; documented rows have a published JetSweep story or research note.
28 trips · 28 legs
Ownership
Attributed to Steve Ballmer · osint resolved · high confidence
Ownership history
Cruising Altitudeas of Jun 14, 2026
We track the aircraft, not who is aboard. Ownership reflects the FAA registrant; attribution and purpose, where shown, are tiered by evidence. Some tails are blocked from public display.