| Satellite Mediaport | Satellite Mediaport Services Ltd. |  Rugby | 1 | — | — | PeeringDB |
| Scala Data Centers HQ | Scala Data Centers |  Barueri | 1 | — | 1 | PeeringDB |
| Scala Data Centers SMEXTP01 | Scala Data Centers |  Tepotzotlán | 1 | — | — | PeeringDB |
| ScaleMatrix Charlotte Data Center US-East 01 | ScaleMatrix Holdings |  Charlotte | 1 | — | — | PeeringDB |
| ScaleMatrix Dallas Data Center US-South 01 | ScaleMatrix Holdings | Allen | 1 | — | — | PeeringDB |
| ScaleUp Datacenter BER03 | ScaleUp Technologies |  Berlin | 1 | — | — | PeeringDB |
| Sebratel - São Leopoldo | Sebratel | São Leopoldo | 1 | — | — | PeeringDB |
| Secure Data Center Honkan | SECOM Trust Systems |  Mitaka | 1 | — | — | PeeringDB |
| SecureIT DCR | SecureIT S.A. |  Bissen | 1 | — | — | PeeringDB |
| SecureNet DC1 | SecureNet Fiber | South Charleston | 1 | 1 | — | PeeringDB |
| Segra Kannapolis | Segra | Kannapolis | 1 | — | — | PeeringDB |
| Sejong Networks IDC | SEJONG networks |  Yongin-si | 1 | — | — | PeeringDB |
| SerinIX Dnepropetrovsk (DK01) | serinix |  Dnepropetrovsk | 1 | — | — | PeeringDB |
| ServerChoice SC-2 | ServerChoice.com | Welwyn Garden City | 1 | — | — | PeeringDB |
| ServerFarm SC1 | Serverfarm Data Centers | Santa Clara | 1 | — | — | PeeringDB |
| ServerHouse F1 | ServerHouse | Hampshire | 1 | — | — | PeeringDB |
| ServerHouse P2 | ServerHouse | Hampshire | 1 | — | — | PeeringDB |
| Serverfarm CH2 Oak Brook / Chicago | Serverfarm Data Centers | Oak Brook | 1 | — | — | PeeringDB |
| Serverfarm LON1 London | Serverfarm Data Centers | Feltham | 1 | — | 1 | PeeringDB |
| Serverfarm TOR1 Toronto | Serverfarm Data Centers |  North York | 1 | — | — | PeeringDB |
| Servers Australia DC | Servers Australia |  Tuggerah | 1 | — | — | PeeringDB |
| Sieć Szerokopasmowa Polski Wschodniej | Województwo Lubelskie |  Lublin | 1 | — | — | PeeringDB |
| Sify Infinit Spaces Limited | Sify Technologies Limited |  Chennai | 1 | — | — | PeeringDB |
| Silica Networks - Data Center Nubicua (OSO01) | Silica Networks |  Las Lumas | 1 | — | — | PeeringDB |
| Siminn Hosting | Siminn Hosting |  Copenhagen | 1 | — | — | PeeringDB |
| Simple Helix | SimpleHelix | Huntsville | 1 | — | 1 | PeeringDB |
| Singapore - Science Park II | Singapore - Science Park II |  Singapore | 1 | — | — | PeeringDB |
| Singapore Polytechnic | Singapore Polytechnic | Singapore | 1 | — | — | PeeringDB |
| Sirius Technology DC - Prato | Sirius Technology |  Prato | 1 | — | — | PeeringDB |
| Sirius Technology DC - Quarrata | Sirius Technology | Quarrata | 1 | — | — | PeeringDB |
| Sirius Technology DC- Nuoro | Sirius Technology | Nuoro | 1 | — | — | PeeringDB |
| SloughIX | Network-I | Slough | 1 | — | 1 | PeeringDB |
| Smartcom Telephone (MCAL1) | Smartcom Telephone | McAllen | 1 | — | — | PeeringDB |
| Smartdc Montreal | Smartdc | Montreal | 1 | — | — | PeeringDB |
| Smartdc Paris | Smartdc |  Montreuil | 1 | — | — | PeeringDB |
| SoVerNet Burlington | SoVerNet | Burlington | 1 | — | — | PeeringDB |
| SoftBank Tokyo No. 4 | Softbank | Tokyo | 1 | 1 | — | PeeringDB |
| Softdados Aracaju POP | Softdados | Aracaju | 1 | — | — | PeeringDB |
| Softnet Koper DC | Softnet |  Koper | 1 | — | — | PeeringDB |
| Softnet Ljubljana DC | Softnet | Ljubljana | 1 | — | — | PeeringDB |
| Soleblanca Datacenter | Soleblanca SA |  Chiasso | 1 | — | — | PeeringDB |
| Soul DataCentre | Vocus | North Melbourne | 1 | — | — | PeeringDB |
| South West Communications Exeter | Focus Group | Exeter | 1 | — | — | PeeringDB |
| Southern Telecom | Southern Telecom | Atlanta | 1 | — | — | PeeringDB |
| SpaceNet Limited | SpaceNet Ltd. |  Dhaka | 1 | — | — | PeeringDB |
| Spectrum Networks George Street Data Center | Spectrum Networks | Sydney | 1 | — | — | PeeringDB |
| Spin Servers DAL1 | Majestic Hosting Solutions | Dallas | 1 | — | — | PeeringDB |
| Sprint Data Center | Sprint | Olsztyn | 1 | — | — | PeeringDB |
| Ss. Cyril and Methodius University - Rectorate | Faculty of Computer Science and Engineering, Ss. Cyril and Methodius University in Skopje |  Skopje | 1 | 1 | — | PeeringDB |
| Stack Infrastructure Silicon Valley SVY01 | STACK Infrastructure | San Jose | 1 | — | — | PeeringDB |
| Starnet Media Cluj-Napoca | Comunicatii Starnet Media SRL |  Cluj Napoca | 1 | 1 | — | PeeringDB |
| Stellium 2 & 3 | Stellium | Newcastle | 1 | 1 | — | PeeringDB |
| StrataGate Datacentre | EOL |  Tauranga | 1 | — | — | PeeringDB |
| Stream Data Centers - MN I | Stream Data Centers | Chaska | 1 | — | — | PeeringDB |
| Stream Data Centers - Phoenix I | Stream Data Centers | Goodyear | 1 | — | — | PeeringDB |
| Státní pokladna Centrum sdílených služeb, s. p. | Statni pokladna Centrum sdilenych sluzeb, s.p. |  Prague | 1 | — | — | PeeringDB |
| Subrigo DET11 | Subrigo | Southfield | 1 | — | — | PeeringDB |
| SunNetwork DataCenter (HK1) | Sun Network |  Kwai Chung | 1 | — | — | PeeringDB |
| SunNetwork DataCenter (HK2) | Sun Network | Sha Tin | 1 | — | — | PeeringDB |
| Sundsvall/B | National Post and Telecom Agency |  Sundsvall | 1 | 2 | — | PeeringDB |
| Sungard AS Carlstadt 777 | 11:11 Systems | Carlstadt | 1 | — | 1 | PeeringDB |
| Sungard AS Elland TC4 | 11:11 Systems | Elland | 1 | — | — | PeeringDB |
| Sungard AS Philadelphia | 11:11 Systems | Philadelphia | 1 | — | 1 | PeeringDB |
| Sungard AS Thornton | 11:11 Systems | Thornton | 1 | — | — | PeeringDB |
| SynAApS | SynAAps | Villeurbanne | 1 | — | — | PeeringDB |
| SÜC Datacenter 1 | süc // dacor | Coburg | 1 | — | — | PeeringDB |
| SÜC Datacenter 2 | süc // dacor | Coburg | 1 | — | — | PeeringDB |
| T-Mobile CZ DC7 | T-Mobile Czech Republic a.s. | Prague | 1 | — | — | PeeringDB |
| T2 Ljubljana Brnciceva | T-2 d.o.o. | Črnuče | 1 | — | — | PeeringDB |
| T5@Portland | T5 Data Centers | Hillsboro | 1 | — | — | PeeringDB |
| TAS Sophia | TAS France | Antibes | 1 | — | — | PeeringDB |
| TCC | Zain Omantel International (ZOI) |  Ruwi | 1 | — | — | PeeringDB |
| TECNOERA LONDRES ZONA 1 | TECNOERA | Viña del Mar | 1 | 1 | — | PeeringDB |
| TELCONET Buenos Aires | Telconet S.A |  Buenos Aires | 1 | — | — | PeeringDB |
| TGRDORXA - Tigard Central Office | Ziply Fiber | Tigard | 1 | — | — | PeeringDB |
| TKRZ Emsdetten (EMS1) | TKRZ Business | Emsdetten | 1 | — | 2 | PeeringDB |
| TKRZ Greven (GRV1) | TKRZ Business | Greven | 1 | — | 1 | PeeringDB |
| TKRZ Nordhorn (NOH1) | TKRZ Business | Nordhorn | 1 | — | 2 | PeeringDB |
| TM ONE CBJ1, Cyberjaya | Telekom Malaysia Berhad (TM) |  Cyberjaya | 1 | — | — | PeeringDB |
| TM ONE CBJ2, Cyberjaya | Telekom Malaysia Berhad (TM) | Cyberjaya | 1 | — | — | PeeringDB |
| TM ONE CBJ6, Cyberjaya | Telekom Malaysia Berhad (TM) | Cyberjaya | 1 | — | — | PeeringDB |
| TM ONE PG1, Penang | Telekom Malaysia Berhad (TM) | Georgetown | 1 | — | — | PeeringDB |
| TMR Telehouse Bochum | GLASFASER RUHR | Bochum | 1 | — | — | PeeringDB |
| TNG DataCentre Kiel - HQ | TNG Stadtnetz GmbH | Kiel | 1 | — | — | PeeringDB |
| TNG DataCentre Kiel - Wik | TNG Stadtnetz GmbH | Kiel | 1 | — | — | PeeringDB |
| TSBG Hosting | TSBG Hosting Ltd |  Haskovo | 1 | — | — | PeeringDB |
| TTCL Iringa Telephone House | Tanzania Telecommunications Corporation (TTCL Corporation) |  Iringa | 1 | — | 1 | PeeringDB |
| TTCL Kijitonyama Exchange | Tanzania Telecommunications Corporation (TTCL Corporation) | Dar es Salaam | 1 | — | 1 | PeeringDB |
| TTCL Mbeya Telephone House | Tanzania Telecommunications Corporation (TTCL Corporation) | Mbeya | 1 | — | 1 | PeeringDB |
| TURBOZONE FEC01 | Turbozone Internet | Feira De Santana | 1 | — | 1 | PeeringDB |
| TWL-KOM Datacenter II | TWL-KOM | Ludwigshafen am Rhein | 1 | — | 1 | PeeringDB |
| TWT Datacenter | TWT Spa | Milan | 1 | — | — | PeeringDB |
| Talido Bulgaria | TALIDO | Haskovo | 1 | — | — | PeeringDB |
| Talklink Telecom | Talklink | Rio Claro | 1 | — | — | PeeringDB |
| Tech Mahindra Cleveland | Tech Mahindra | Cleveland | 1 | 1 | — | PeeringDB |
| Tech.ru DC2 | LLC Digital Network |  Moscow | 1 | — | — | PeeringDB |
| Tecto TGIG2 (ex Arcos) | Tecto | Rio de Janeiro | 1 | — | — | PeeringDB |
| Teknosos Bilisim Hizmetleri | TEKNOSOS BILISIM HIZMETLERI VE TIC. LTD. STI |  Adana | 1 | — | — | PeeringDB |
| Teknotel - Ankara | Teknotel Telekom | Ankara | 1 | — | — | PeeringDB |
| Teknotel - Yenibosna | Teknotel Telekom | Istanbul | 1 | — | — | PeeringDB |