
Jan Koum
Tech
Fleet: Gulfstream G650ER
Tails: N143, N518KA
Comparison · Private jets
Side-by-side comparison of Jan Koum's and Pfizer's tracked private jets — aircraft, fuel burn, CO₂ per hour, home airports. Live data from public ADS-B records.

Tech
Business
| Stat | Jan Koum | Pfizer |
|---|---|---|
| Fleet size | 2 | 2 |
| Combined fuel burn | 940 gph | 940 gph |
| CO₂ / hour (heaviest aircraft) | 4,515 kg | 4,515 kg |
| Estimated annual CO₂ | 1806.0t | 1806.0t |
| Home base | Teterboro (KTEB) | Westchester County (NY) (KHPN) |
| Category | Tech | Business |
| Tail numbers | N143, N518KA | N5CP, N6CP |
Methodology and emissions math at celebplanes.com/methodology. Annual CO₂ is an estimate using a 200-hour-per-year industry baseline; actual usage varies. For each celebrity's live tracking and full flight history, click into their profile.
Attributions derived from FAA registry + ADSB Exchange + SEC filings; may be incomplete or outdated. Methodology · Report an error. Observational use only.