Gulfstream G650ER
N143 · ICAO: A0ADD4 · Heavy jet
Fuel burn
470 gal/hr
CO₂ per hour
4,515 kg
Car miles equiv.
11,176
Co-founder and former CEO of WhatsApp; technology investor. Net worth ~$16.9–17B. Immigrant success story — arrived in the U.S. at 16, worked as a grocery-store cleaner, built WhatsApp to 450M users, sold to Facebook for ~$19–22B in 2014. Atherton compound assembled over four years (~$100M+, plus a museum for 100+ Porsches). ~$200M Malibu real estate, $125M Beverly Hills mansion, ~$70M Château de la Garoupe in Cap d'Antibes (Nov 2023). Newlands VC family office (Dallas, $10B AUM).
Fleet of two identical Gulfstream G650ERs: N143 (A0ADD4) and N518KA (A68009). One tracked direct from UAE. Expected: heavy NorCal↔SoCal↔Antibes↔Miami corridor plus international. Owns superyacht *Moonrise* (262 ft, ~$170M).
Left Facebook/WhatsApp in 2018 over data privacy and monetization disputes.
Home base
Teterboro (KTEB · TEB)
Frequent destinations
KSJCKSMOKOPFLFMNEGLLOMDB
Lifetime emissions & flights
Total flights
6
Total CO₂
35.8t
Flight hours
8h
Jan Koum's fleet (2 aircraft)
Gulfstream G650ER
N518KA · ICAO: A68009 · Heavy jet
Fuel burn
470 gal/hr
CO₂ per hour
4,515 kg
Car miles equiv.
11,176
Flight history — last 6 flights
CompletedN143May 11, 2026, 06:27 PMDepartureKSJC — Norman Y. Mineta San Jose International AirportArrivalKATW — Appleton International Airport
CompletedN143
May 11, 2026, 06:27 PMDeparture
KSJC — Norman Y. Mineta San Jose International Airport
Arrival
KATW — Appleton International Airport
Flight path
Duration
3h 15m
Max altitude
45,025 ft
Max speed
570 kts
Arrived
May 11, 2026, 09:43 PM
CompletedN143May 11, 2026, 01:14 AMDepartureKVNY — Van Nuys AirportArrivalKSJC — Norman Y. Mineta San Jose International Airport
CompletedN143
May 11, 2026, 01:14 AMDeparture
KVNY — Van Nuys Airport
Arrival
KSJC — Norman Y. Mineta San Jose International Airport
Flight path
Duration
50m
Max altitude
32,025 ft
Max speed
520 kts
Arrived
May 11, 2026, 02:05 AM
CompletedN143May 8, 2026, 07:14 PMDepartureKSFO — San Francisco International AirportArrivalKVNY — Van Nuys Airport
CompletedN143
May 8, 2026, 07:14 PMDeparture
KSFO — San Francisco International Airport
Arrival
KVNY — Van Nuys Airport
Flight path
Duration
1h 0m
Max altitude
31,025 ft
Max speed
538 kts
Arrived
May 8, 2026, 08:14 PM
CompletedN143May 8, 2026, 03:51 PMDepartureKVNY — Van Nuys AirportArrivalKSFO — San Francisco International Airport
CompletedN143
May 8, 2026, 03:51 PMDeparture
KVNY — Van Nuys Airport
Arrival
KSFO — San Francisco International Airport
Flight path
Duration
58m
Max altitude
34,000 ft
Max speed
518 kts
Arrived
May 8, 2026, 04:50 PM
CompletedN143May 8, 2026, 03:40 AMDepartureKSJC — Norman Y. Mineta San Jose International AirportArrivalKVNY — Van Nuys Airport
CompletedN143
May 8, 2026, 03:40 AMDeparture
KSJC — Norman Y. Mineta San Jose International Airport
Arrival
KVNY — Van Nuys Airport
Flight path
Duration
57m
Max altitude
29,000 ft
Max speed
496 kts
Arrived
May 8, 2026, 04:38 AM
CompletedN143May 6, 2026, 04:18 AMDepartureKOXR — Oxnard AirportArrivalKSJC — Norman Y. Mineta San Jose International Airport
CompletedN143
May 6, 2026, 04:18 AMDeparture
KOXR — Oxnard Airport
Arrival
KSJC — Norman Y. Mineta San Jose International Airport
Flight path
No flight path available
Duration
52m
Max altitude
26,000 ft
Max speed
455 kts
Arrived
May 6, 2026, 05:11 AM
About Jan Koum's private jet
What private jet does Jan Koum own?
Jan Koum flies a Gulfstream G650ER (registration N143). Live tracking, full flight history, and CO₂ emissions for each aircraft are available on this page.
What is Jan Koum's private jet tail number?
Jan Koum's private jet tail numbers are N143 (Gulfstream G650ER), N518KA (Gulfstream G650ER). Each registration links to the live tracking page with full flight history, fuel burn and CO₂ emissions on Celebplanes.
How much CO₂ does Jan Koum's jet emit per hour?
Jan Koum's Gulfstream G650ER (N143) burns roughly 470 gallons of Jet-A per hour, which converts to about 4,515 kg of CO₂ per flight hour — equivalent to roughly 11,176 miles of average passenger-car driving.
Where does Jan Koum fly out of?
Jan Koum's home base is Teterboro (KTEB / TEB), with frequent destinations including KSJC, KSMO, KOPF, LFMN.
How much CO₂ has Jan Koum's jet emitted on tracked flights?
Across 6 tracked flights (8 flight hours) on Celebplanes, Jan Koum's aircraft have emitted approximately 35.8t of CO₂. These figures are calculated from public ADS-B flight times multiplied by manufacturer-published fuel burn × the EPA standard 9.57 kg CO₂/gallon for Jet-A.
Is it legal to track Jan Koum's jet?
Yes. Every transponder-equipped aircraft broadcasts unencrypted ADS-B position data continuously, by FAA mandate. Celebplanes aggregates this public broadcast from ADSB Exchange, ADSB.fi, FlightRadar24 and airplanes.live — the same sources used by news outlets and academic researchers. See celebplanes.com/methodology for details.
Attributions derived from FAA registry + ADSB Exchange + SEC filings; may be incomplete or outdated. Methodology · Report an error. Observational use only.