| Implex Minneapolis | Minneapolis | United States | 1 | 0 |
| INAP Houston | Houston | United States | 4 | 0 |
| INAP Phoenix | Phoenix | United States | 3 | 0 |
| Indiana University Data Center | Bloomington | United States | 0 | 0 |
| INdigital | Fort Wayne | United States | 2 | 0 |
| InfoBunker | Boone | United States | 1 | 0 |
| INOC Albany (11 North Pearl St) | Albany | United States | 2 | 0 |
| INOC Albany (4 Tower Pl) | Albany | United States | 1 | 0 |
| INOC Albany (80 State St) | Albany | United States | 3 | 0 |
| InterConnX Realty | Houston | United States | 0 | 0 |
| Intergate.Quincy | Quincy | United States | 4 | 0 |
| Intergate West / Digital.forest / Fortress | Tukwila | United States | 5 | 0 |
| Interphase Data Center New York I | New York | United States | 1 | 0 |
| Interphase Data Center New York II | New York | United States | 0 | 0 |
| InterServer Teb2 | Secaucus | United States | 3 | 0 |
| InterServer Teb4 | Secaucus | United States | 0 | 0 |
| IP Pathways DSM1 | Urbandale | United States | 2 | 0 |
| IP Pathways KC1 | Kansas City | United States | 1 | 0 |
| IPR Wilmington CCC | Wilmington | United States | 2 | 0 |
| IRIS - Nashville | Nashville | United States | 1 | 0 |
| Iron Mountain Data Center - Boston (BOS-1) | Northborough | United States | 1 | 0 |
| Iron Mountain Data Center - Denver (DEN-1) | Denver | United States | 8 | 0 |
| Iron Mountain Data Center - Kansas City (KCM-1) | Kansas City | United States | 2 | 0 |
| Iron Mountain Data Center - Manassas (VA-1) | Manassas | United States | 18 | 0 |
| Iron Mountain Data Center - Manassas (VA-2) | Manassas | United States | 3 | 0 |
| Iron Mountain Data Center - New Jersey (NJE-1) | Edison | United States | 20 | 0 |
| Iron Mountain Data Center - Ohio (OHS-1) | Miamisburg | United States | 2 | 0 |
| Iron Mountain Data Center - Phoenix (AZP-1) | Phoenix | United States | 32 | 0 |
| Iron Mountain Data Center - Phoenix (AZP-2) | Phoenix | United States | 3 | 0 |
| Iron Mountain Data Center - Scottsdale (AZS-1) | Scottsdale | United States | 9 | 0 |
| Iron Mountain Data Center - Western Pennsylvania (WPA-1) | Boyers | United States | 4 | 0 |
| IUPUI Informatics & Communications Technology Complex | Indianapolis | United States | 3 | 0 |
| ixColo | Buffalo | United States | 2 | 0 |
| Jackson Technical Datacenter | Tulsa | United States | 1 | 0 |
| Jaguar Communications | Owatonna | United States | 0 | 0 |
| JAX NAP | Jacksonville | United States | 7 | 0 |
| JMA NAC Los Angeles | Los Angeles | United States | 0 | 0 |
| JSLLC Bozeman | Bozeman | United States | 0 | 0 |
| Kanobe, LLC | Bothell | United States | 1 | 0 |
| KDWEB San Jose | San Jose | United States | 0 | 0 |
| KNWCWAXA - Kennewick Central Office | Kennewick | United States | 1 | 0 |
| KOMO Plaza Seattle (Formerly Fisher Plaza) | Seattle | United States | 21 | 0 |
| LADC1 - 624 S Grand Ave | Los Angeles | United States | 0 | 0 |
| LADC2 - 707 Wilshire Blvd | Los Angeles | United States | 0 | 0 |
| LADC3 - 600 W 7th St | Los Angeles | United States | 0 | 0 |
| LADC4 - 530 W 6th St | Los Angeles | United States | 1 | 0 |
| LADC5 - 650 S Grand Ave | Los Angeles | United States | 0 | 0 |
| Lagrange CO | Lagrange | United States | 0 | 0 |
| Lake Region Technology & Communications | Hulbert | United States | 1 | 0 |
| Laredo VTX | Laredo | United States | 15 | 0 |