| KIO México 6 (MEX6) | KIO | Toluca | Mexico | 2 | 0 |
| KIO Monterrey 1 (MTY1) | KIO | Monterrey | Mexico | 5 | 0 |
| KIO Murcia 1 (MUR1) | KIO | Murcia | Spain | 2 | 0 |
| KIO Panamá 1 (PAN1) | KIO | Panama | Panama | 7 | 0 |
| KIO Querétaro 1 (QRO1) | KIO | El Marques | Mexico | 67 | 4 |
| KIO Querétaro 2 (QRO2) | KIO | El Marques | Mexico | 5 | 0 |
| KIO Santo Domingo 1 (SDO1) | KIO | Santo Domingo Este | Dominican Republic | 3 | 0 |
| KIT-Bibliothek Süd | Karlsruhe Institute of Technology (KIT) | Karlsruhe | Germany | 3 | 1 |
| KK Networks Private Limited | KK Networks Private Limited | Lahore | Pakistan | 4 | 1 |
| KLH-GSN-DC - Greekstream Networks - Thessaloniki | Ioannis Roditis trading as Greekstream Networks | Thessaloniki | Greece | 4 | 1 |
| Klixa Muttenz | Klixa Group | Muttenz | Switzerland | 1 | 0 |
| KLNUSA | KLNUSA | Semarang | Indonesia | 1 | 0 |
| Kloud Dhaka DC | Kloud Technologies Limited | Dhaka | Bangladesh | 6 | 1 |
| KM-IX.net | Global Technology Ukraine Ltd | Khmelnitskiy | Ukraine | 3 | 1 |
| KNWCWAXA - Kennewick Central Office | Ziply Fiber | Kennewick | United States | 1 | 0 |
| KoloDC NL1 | KoloDC | Dronten | Netherlands | 52 | 5 |
| KoloDC NL2 | KoloDC | Meppel | Netherlands | 51 | 2 |
| KoloDC NL3 | KoloDC | Apeldoorn | Netherlands | 13 | 1 |
| Kom4Tel GmbH | Kom4tel GmbH | Eschbach | Germany | 0 | 0 |
| KOMO Plaza Seattle (Formerly Fisher Plaza) | GI Property Management | Seattle | United States | 22 | 2 |
| Konesali Yhtiöt Jyväskylä | Konesali Yhtio Jyvaskyla Oy | Jyväskylä | Finland | 1 | 0 |
| Korbank Data Center | Korbank S. A. | Wroclaw | Poland | 22 | 3 |
| KORE NAP | KORE NAP | Mumbai | India | 0 | 0 |
| KPN Datacenter (Mchn-S1) | KPN EuroRings B.V. | Munich | Germany | 4 | 0 |
| KPN DC2 | KPN Wholesale | Amsterdam | Netherlands | 12 | 2 |
| KPN DSSD2 | KPN N.V | Düsseldorf | Germany | 4 | 0 |
| Kraftwerk Mitte Dresden | SachsenGigaBit GmbH | Dresden | Germany | 3 | 0 |
| Krossverksgatan 13a, Malmö | TDC A/S | Malmö | Sweden | 5 | 0 |
| krzysztof Wójcik | VIP | Lublin | Poland | 0 | 0 |
| KSC-BKK | KSC Commercial Internet Co. Ltd. | Laksi | Thailand | 0 | 0 |
| ksiezyc.pl | Aves Sp. z o.o. | Zduńska Wola | Poland | 0 | 0 |
| kt cloud Bundang | kt cloud Co., Ltd | Seongnam | South Korea | 1 | 1 |
| kt cloud Daejeon | kt cloud Co., Ltd | Seo-gu | South Korea | 0 | 1 |
| kt cloud Gangnam | kt cloud Co., Ltd | Gangnam-gu | South Korea | 1 | 1 |
| kt cloud Gasan | kt cloud Co., Ltd | Geumcheon-gu | South Korea | 1 | 1 |
| kt cloud Mokdong(MD1) | kt cloud Co., Ltd | Yangcheon-gu | South Korea | 2 | 1 |
| kt cloud Mokdong(MD2) | kt cloud Co., Ltd | Yangcheon-gu | South Korea | 6 | 1 |
| kt cloud Namguro | kt cloud Co., Ltd | Guro-gu | South Korea | 0 | 0 |
| kt cloud Songjeong GHC | kt cloud Co., Ltd | Haeundae-gu | South Korea | 0 | 0 |
| kt cloud Yeouido | kt cloud Co., Ltd | Yeongdeungpo-Gu | South Korea | 2 | 1 |
| kt cloud Yongsan | kt cloud Co., Ltd | Yongsan-gu | South Korea | 0 | 1 |
| KT Guro | LOTTE DATA COMMUNICATION COMPANY | Seoul | South Korea | 1 | 0 |
| Kuzey Veri Merkezi | Kuzey Verimerkezi A.Ş. | Cekmekoy | Turkey | 3 | 0 |
| KWN-IXP-MXN-PUE | KIWI NETWORKS | Puebla | Mexico | 0 | 0 |
| kyberio GmbH | kyberio GmbH | Hannover | Germany | 1 | 0 |
| kyberna DataCenter | kyberna AG | Balzers | Liechtenstein | 1 | 0 |
| L&T Network Services - BOM 01 | L&T Network Services Private Limited | Panvel | India | 2 | 0 |
| L&T Network Services - MAA 01 | L&T Network Services Private Limited | Kancheepuram | India | 1 | 0 |
| L7 | Digital Telecom IX LLC | Kyiv | Ukraine | 2 | 1 |
| Labicolo | Labitat | Frederiksberg C | Denmark | 7 | 1 |