| Equinix SJ1 - Saint John | Equinix |  Saint John | — | — | — | PeeringDB |
| Equinix SY9x | Equinix |  Australia | — | — | — | OSM |
| Equinix TR5 - Toronto | Equinix | Markham | — | — | — | PeeringDB |
| Equinix data center - ST4 | Equinix |  Chile | — | — | — | OSM |
| Ergonomic Group | Ergonomic Group |  Glastonbury | — | — | — | OSM |
| Ericsson | — |  Ireland | — | — | — | OSM |
| Esnet | VPSnet.com |  Vilnius | — | — | — | PeeringDB |
| Espacio Rack | Espacio Rack |  Pozuelo de Alarcón | — | — | — | PeeringDB |
| Estacion Terrena Izalco | — |  El Salvador | — | — | — | OSM |
| Estación de Amarre Las Toninas - Telecom | Telecom |  Argentina | — | — | — | OSM |
| Estamp office , Stamp Paper Office | myself |  India | — | — | — | OSM |
| Ethoplex Edge DC - Fond du Lac | Ethoplex Internet | Friendship | — | — | — | PeeringDB |
| Etix Vendée #2 | ETIX |  Olonne-sur-Mer | — | — | — | OSM |
| Etix Vendée #2 | — | Olonne-sur-Mer | — | — | — | OSM |
| Euregiocenter | — |  Aachen | — | — | — | OSM |
| Euro-Information EIP (Data Center) | Euro Information | France | — | — | — | OSM |
| Euroclear | Euroclear | France | — | — | — | OSM |
| Euroclear | Euroclear | France | — | — | — | OSM |
| European Business Reliance Centre (EBRC) | European Business Reliance Centre (EBRC) |  Luxembourg | — | — | — | OSM |
| Evolution @ Agecroft Commerce Park | — |  United Kingdom | — | — | — | OSM |
| Evolution @ Agecroft Commerce Park | — | United Kingdom | — | — | — | OSM |
| Evoque Data Center Solutions | — | Redditch | — | — | — | OSM |
| Expedient Milwaukee | Expedient | Franklin | — | — | — | OSM |
| Expedient Tidepoint | Expedient | United States | — | — | — | OSM |
| Experian | — | Nottingham | — | — | — | OSM |
| Experian McKinney Data Center | — | United States | — | — | — | OSM |
| Ezditek | Ezditek |  Saudi Arabia | — | — | — | OSM |
| FALCAO NET POP Tupanatinga (TUP) | FALCAO NET PROVEDOR DE INTERNET LTDA |  Tupanatinga | — | — | — | PeeringDB |
| FDJ | FDJ | France | — | — | — | OSM |
| FIBRAREDE GESTAO E SERVICOS DE INFRAESTRUTURA | Fibra Rede | São Paulo | — | — | — | PeeringDB |
| FIS-ASP GmbH | FIS-ASP GmbH | Germany | — | — | — | OSM |
| FLAG London | FLAG London | London | — | — | — | PeeringDB |
| Facebook Altoona Data Center 1 | Meta | United States | — | — | — | OSM |
| Facebook Altoona Data Center 2 | Meta | United States | — | — | — | OSM |
| Facebook Altoona Data Center 3 | Meta | United States | — | — | — | OSM |
| Facebook Altoona Data Center 4 | Meta | United States | — | — | — | OSM |
| Facebook Altoona Data Center 5 | Meta | United States | — | — | — | OSM |
| Facebook Fort Worth Datacenter | Meta | United States | — | — | — | OSM |
| Facebook Fort Worth Datacenter | Meta | United States | — | — | — | OSM |
| Facebook Fort Worth Datacenter | Meta | United States | — | — | — | OSM |
| Factory Software | AVEVA Select Italia | — |  Italy | — | — | — | OSM |
| Family History Center | The Church of Jesus Christ of Latter-day Saints | United States | — | — | — | OSM |
| Fast2host - Fast4networks Ltd | Fast2Host | Cambridge | — | — | — | PeeringDB |
| FedConnect San Francisco | 60 Fed LLC | San Francisco | — | — | — | PeeringDB |
| Fiber Alley 8915 | Fiber Alley Datacenters | San Diego | — | — | — | PeeringDB |
| Fiber Alley 8917 | Fiber Alley Datacenters | San Diego | — | — | — | PeeringDB |
| FiberCloud-Westin1809 | Fibercloud | Seattle | — | — | — | PeeringDB |
| FiberCloud-Westin3205 | Fibercloud | Seattle | — | — | — | PeeringDB |
| Fibrandes Nodo AQP | FIBRANDES |  Peru | — | — | — | OSM |
| Fidelity | Fidelity | United States | — | — | — | OSM |
| Fiducia & GAD IT AG | Fiducia & GAD IT AG | Münster | — | — | — | OSM |
| Fingerprint Technologies | Fingerprint Technologies | France | — | — | — | OSM |
| Fireline Broadband | Fireline Network Solutions, Inc dba: Fireline Broadband | Santa Fe Springs | — | — | — | PeeringDB |
| First National Technical Center | First National of Nebraska | United States | — | — | — | OSM |
| FirstLight | FirstLight | Portsmouth | — | — | — | OSM |
| Firstheberg | Firstheberg | Valenciennes | — | — | — | PeeringDB |
| Fitjar Campus | Borealis Data Center |  Reykjanesbær | — | — | — | PeeringDB |
| Fleetnet | Fleetnet | Rancharia | — | — | — | OSM |
| Flexential - Atlanta/Douglasville (ATL5) | Flexential | Douglasville | — | — | 1 | PeeringDB |
| Flexential - Louisville/East (LOU5) | Flexential | Louisville | — | — | 1 | PeeringDB |
| Flexential Allentown Data Center | Flexential | Allentown | — | — | — | OSM |
| Flexential Dallas - Richardson | Flexential | Richardson | — | — | — | OSM |
| ForHLR II | Steinbuch Centre for Computing | Germany | — | — | — | OSM |
| ForceAmp.com | — | United States | — | — | — | OSM |
| Foremost Corpus Christi | Foremost Telecommunications Corporation | Corpus Christi | — | — | 1 | PeeringDB |
| Foremost Dallas | Foremost Telecommunications Corporation | Dallas | — | — | — | PeeringDB |
| Foremost Harlingen | Foremost Telecommunications Corporation | Harlingen | — | — | — | PeeringDB |
| Foremost San Antonio | Foremost Telecommunications Corporation | San Antonio | — | — | — | PeeringDB |
| Forescout Technologies, Inc. | Forescout | San Jose | — | — | — | OSM |
| Forsythe Data Centers | Forsythe Data Centers | Elk Grove Village | — | — | — | PeeringDB |
| Fortress SF1 | Fortress Data Centers | San Francisco | — | — | — | PeeringDB |
| Foto Copy kampus 2 UBH | — |  Indonesia | — | — | — | OSM |
| Fox Telecomunicação & Internet Ltda. | Fox Telecomunicação e Internet LTDA | Jundiai | — | — | — | PeeringDB |
| FoxNetwork | Louis Beke |  Belgium | — | — | — | OSM |
| Fraga Comunicação | PlugLink & InfoST Internet | Rio de Janeiro | — | — | — | PeeringDB |
| France Travail datacenter Orléans | France Travail DSI | France | — | — | — | OSM |
| Freedom Data Centers | Freedom Cloud |  Kazakhstan | — | — | — | OSM |
| Fregat | Hartmanns AG |  Dniepropetrovsk | — | — | — | PeeringDB |
| Frontier (supercomputer) | Oak Ridge National Laboratory | United States | — | — | — | OSM |
| Frontier Science | — | Amherst | — | — | — | OSM |
| Frontier Tampa Main Tandem Office | Frontier Florida | Tampa | — | — | — | PeeringDB |
| Frost Bank | Frost Bank | United States | — | — | — | OSM |
| Fugaku (supercomputer) | — |  Japan | — | — | — | OSM |
| Fujitsu Data Centre | — | United Kingdom | — | — | — | OSM |
| Fujitsu Western Sydney Data Centre | Fujitsu Australia | Australia | — | — | — | OSM |
| Fundação CEPRO | — | Teresina | — | — | — | OSM |
| Fursine | FURSINE LTDA | Belo Horizonte | — | — | — | PeeringDB |
| Future Net Solution | Future Net Solution |  Uttara | — | — | — | PeeringDB |
| G&D Tech | — |  Philippines | — | — | — | OSM |
| G-Tech | — | India | — | — | — | OSM |
| G2K HOSTING DATACENTER | g2khosting.com by G2K Argentina | San Nicolas | — | — | — | PeeringDB |
| GAD-Rechenzentrum 2 | Atruvia AG | Münster | — | — | — | OSM |
| GCSB Data Centre | Government Communications Security Bureau |  New Zealand | — | — | — | OSM |
| GDMS LAO DC | Global Digital Management Solutions |  Vientiane | — | — | — | PeeringDB |
| GDS Guangzhou Nansha Data Center | — |  广州市 | — | — | — | OSM |
| GDS Shanghai Data Center | — | China | — | — | — | OSM |
| GGEW-POP-SHM Bensheim | GGEW net GmbH | Bensheim | — | — | — | PeeringDB |
| GGEW-POP-SHS Bensheim | GGEW net GmbH | Bensheim | — | — | — | PeeringDB |
| GIGALINE Parbhani | Gigaline Teleservices Opc Private | Parbhani | — | — | — | PeeringDB |
| GIGAPOP | GIGAPOP, C.A |  Maracaibo | — | — | — | PeeringDB |