| Centersquare Toronto (YYZ2) | Centersquare | Markham | Canada | 3 | 1 |
| CENTRA CLT01 - Charlotte NC (701 E Trade) | CENTRA Digital Interconnect | Charlotte | United States | 8 | 1 |
| CENTRA CMH01 - Columbus Ohio (180 E Broad) | CENTRA Digital Interconnect | Columbus | United States | 0 | 1 |
| CENTRA PWM1 - Portland, Maine (340 Cumberland) | CENTRA Digital Interconnect | Portland | United States | 7 | 1 |
| CENTRA RNO01 - Reno Nevada (200 S. Virginia) | CENTRA Digital Interconnect | Reno | United States | 4 | 0 |
| Central COTEL | Coop Telefonica Villa Gesell Ltda | Villa Gesell | Argentina | 1 | 0 |
| CentriLogic Arlington (ARL) | CentriLogic | Bracknell | United Kingdom | 1 | 0 |
| CentriLogic Buffalo (BUF) | CentriLogic | Buffalo | United States | 1 | 0 |
| CentriLogic Mississauga (MIS) | CentriLogic | Mississauga | Canada | 1 | 0 |
| CentriLogic Rochester (ROC) | CentriLogic | Rochester | United States | 2 | 0 |
| CentriLogic Traders (TRA) | CentriLogic | Mississauga | Canada | 1 | 0 |
| CentriLogic Tranmere (TME) | CentriLogic | Mississauga | Canada | 1 | 0 |
| CentriLogic York (YOR) | CentriLogic | Toronto | Canada | 2 | 0 |
| Centrinuity Toulouse | Centrinuity Toulouse | Toulouse Balma | France | 0 | 0 |
| centron DC bbg | centron GmbH | Hallstadt | Germany | 2 | 0 |
| CENTURY TELECOM LTDA | CENTURY TELECOM | Belo Horizonte | Brazil | 5 | 0 |
| Cenuta Denizli | Cenuta Telekomunikasyon Anonim Sirketi | Denizli | Turkey | 0 | 0 |
| CERN Geneva | CERN | Meyrin | Switzerland | 25 | 2 |
| České Radikomunikace, a.s. | Web4U s.r.o. | Prague | Czechia | 1 | 0 |
| Cetin Data Center | CETIN Ltd. Belgrade | Belgrade | Serbia | 26 | 3 |
| CHAKTOMUK DATA CENTER | CHAKTOMUK DATA CENTER CO. LTD. | Phnom Penh | Cambodia | 2 | 0 |
| Chayora Tianjin China(CN) | Chayora Limited | Tianjin | China | 0 | 0 |
| Chief HD Building Taipei | Chief Telecom Inc. | Taipei | Taiwan | 76 | 4 |
| Chief LY Building Taipei | Chief Telecom Inc. | Taipei | Taiwan | 147 | 5 |
| Chief LY2 Building Taipei | Chief Telecom Inc. | Taipei | Taiwan | 1 | 1 |
| China International Electronic Commerce Center | Stacks Inc. | Guangzhou | China | 3 | 0 |
| China Mobile International - Data Zone Data Center (Thailand) | China Mobile International Limited | Chonburi | Thailand | 0 | 0 |
| China Mobile International - Frankfurt DC | China Mobile International Limited | Mörfelden-Walldorf | Germany | 6 | 0 |
| China Mobile International - GIC Hong Kong | China Mobile International Limited | Hong Kong SAR | Hong Kong SAR China | 2 | 0 |
| China Mobile International - GNC Hong Kong | China Mobile International Limited | Hong Kong | Hong Kong SAR China | 27 | 0 |
| China Mobile International - London DC | China Mobile International Limited | Slough | United Kingdom | 3 | 0 |
| China Mobile International - Singapore DC | China Mobile International Limited | Singapore | Singapore | 6 | 0 |
| China Unicom (Hong Kong) Global Center | China Unicom | Hong Kong | Hong Kong SAR China | 20 | 1 |
| ChinaCache Atecsys Data Center | ChinaCache | Beijing | China | 1 | 1 |
| Chittagong Online Limited (COLBD) | Chittagong Online Limited | Chittagong | Bangladesh | 0 | 0 |
| Choice2mobile Technology Ltd | De Choicetech Integrated Ltd | Lagos | Nigeria | 0 | 0 |
| Chorus Ashburton Exchange (AR) | Chorus New Zealand Limited | Ashburton District | New Zealand | 2 | 0 |
| Chorus Avonhead Exchange (AVO) | Chorus New Zealand Limited | Christchurch | New Zealand | 7 | 1 |
| Chorus Blenheim Exchange (BM) | Chorus New Zealand Limited | Marlborough District | New Zealand | 3 | 0 |
| Chorus Christchurch Exchange (CH) | Chorus New Zealand Limited | Christchurch | New Zealand | 6 | 0 |
| Chorus Courtenay Place Exchange (CPC) | Chorus New Zealand Limited | Wellington | New Zealand | 7 | 0 |
| Chorus Dunedin Exchange (DN) | Chorus New Zealand Limited | Dunedin City | New Zealand | 6 | 0 |
| Chorus Feilding Exchange (FG) | Chorus New Zealand Limited | Manawatu District | New Zealand | 1 | 0 |
| Chorus Forrest Hill Exchange (FOR) | Chorus New Zealand Limited | Auckland | New Zealand | 4 | 0 |
| Chorus Frankton Exchange (FJN) | Chorus New Zealand Limited | Hamilton | New Zealand | 1 | 0 |
| Chorus Gisborne Exchange (GS) | Chorus New Zealand Limited | Gisborne District | New Zealand | 1 | 0 |
| Chorus Glenfield Exchange (GLF) | Chorus New Zealand Limited | Auckland | New Zealand | 4 | 0 |
| Chorus Greymouth Exchange (GM) | Chorus New Zealand Limited | Grey District | New Zealand | 1 | 0 |
| Chorus Hamilton Exchange (HN) | Chorus New Zealand Limited | Hamilton | New Zealand | 6 | 0 |
| Chorus Hastings Exchange (HBN) | Chorus New Zealand Limited | Hastings | New Zealand | 4 | 0 |