| Aptum MTL1 | Aptum Technologies | Montreal | Canada | 2 | 0 |
| Aptum MTL2 | Aptum Technologies | Kirkland | Canada | 0 | 0 |
| Aptum Portsmouth | Aptum Technologies | Havant | United Kingdom | 1 | 0 |
| aql DC2 | (aq) networks limited | Leeds | United Kingdom | 22 | 1 |
| aql DC3 | (aq) networks limited | Leeds | United Kingdom | 5 | 0 |
| aql DC5 | (aq) networks limited | Leeds | United Kingdom | 7 | 0 |
| Aqua Ray Aurora | Aqua Ray | Ivry-sur-Seine | France | 3 | 0 |
| Aranet AUX1 | Aranet | Araguaína | Brazil | 4 | 0 |
| Aranet AUX2 | Aranet | Araguaína | Brazil | 2 | 0 |
| ARE-ON Forrest City | Arkansas Research and Education Optical Network (AREON) | Forrest City | United States | 1 | 0 |
| ARE-ON Hope | Arkansas Research and Education Optical Network (AREON) | Hope | United States | 2 | 0 |
| Area31 Data Center | DTP | Depok | Indonesia | 25 | 2 |
| Area9 Data Center | Area9 IT Solutions | Winnellie | Australia | 0 | 0 |
| Arelion Dusseldorf DDF/B | Arelion | Düsseldorf | Germany | 12 | 2 |
| Arelion London HEX | Arelion | London | United Kingdom | 4 | 1 |
| Arelion Moscow MSK/O1 | Arelion | Moscow | Russia | 3 | 0 |
| Arelion Munich MCN | Arelion | Munich | Germany | 4 | 0 |
| Arelion Oslo OKR/C | Arelion | Oslo | Norway | 9 | 0 |
| Arelion St. Petersburg SAP/M1 | Arelion | St. Petersburg | Russia | 2 | 0 |
| Arelion Stuttgart SGRT/Z | Arelion | Stuttgart | Germany | 9 | 1 |
| Arelion Wien Süd | Arelion | Vienna | Austria | 2 | 0 |
| Argon Data Communication | Argon Data Network | Jakarta Selatan | Indonesia | 0 | 0 |
| ark data centers - Akron,OH | ark data centers | Akron | United States | 5 | 2 |
| ark data centers - Boise, ID | ark data centers | Boise | United States | 9 | 1 |
| ark data centers - Canton,OH | ark data centers | Canton | United States | 4 | 0 |
| ark data centers - Cedar Rapids ,IA | ark data centers | Marion | United States | 4 | 0 |
| ark data centers - Cleveland, OH | ark data centers | Independence | United States | 2 | 0 |
| ark data centers - Duluth, MN | ark data centers | Duluth | United States | 6 | 0 |
| ark data centers - Green Bay, WI | ark data centers | Menasha | United States | 1 | 0 |
| ark data centers - Pittsburgh, PA | ark data centers | Freeport | United States | 3 | 0 |
| ark data centers - Tucson, AZ | ark data centers | Tucson | United States | 12 | 1 |
| ark data centers - Youngstown, OH | ark data centers | Youngstown | United States | 3 | 0 |
| Ark Data Centres - Cody Park - A9, A101, A102, A103, A104, A105 | Ark Data Centres | Farnborough | United Kingdom | 5 | 0 |
| Ark Data Centres - Spring Park - SQ17, P1, P2, P3, P4, P5 | Ark Data Centres | Corsham | United Kingdom | 7 | 0 |
| Ark Data Centres - Union Park | Ark Data Centres | Hayes | United Kingdom | 0 | 0 |
| Armazém Datacenter - Brusque | Centro de Tecnologia Armazem Datacenter Ltda. | Brusque | Brazil | 1 | 0 |
| Armazém Datacenter - Joinville | Centro de Tecnologia Armazem Datacenter Ltda. | Joinville | Brazil | 3 | 0 |
| Ármúli 25 | Mila hf. | Reykjavik | Iceland | 4 | 1 |
| ARO DC2 Kilby House (AIMES) | AIMES | Liverpool | United Kingdom | 3 | 4 |
| Arrow Calgary DC1 | Arrow Datacenters Inc | Calgary | Canada | 15 | 1 |
| Arrow Calgary DC2 | Arrow Datacenters Inc | Calgary | Canada | 30 | 3 |
| Artfiles w408 | Artfiles New Media GmbH | Hamburg | Germany | 8 | 1 |
| Arthatama Adhiprima Persada | PT. Arthatama Adhiprima Persada | Jakarta Utara | Indonesia | 0 | 0 |
| Artnet DC Gdansk MP100 | Artnet Spolka z ograniczona odpowiedzialnoscia | Gdansk | Poland | 8 | 1 |
| Artnet DC Gdynia GAC133 | Artnet Spolka z ograniczona odpowiedzialnoscia | Gdynia | Poland | 3 | 1 |
| Aruba IT1 - Arezzo | Aruba S.p.A | Arezzo | Italy | 4 | 0 |
| Aruba IT2 - Arezzo | Aruba S.p.A | Arezzo | Italy | 1 | 0 |
| Aruba IT3 - Milan PSP | Aruba S.p.A | Ponte San Pietro | Italy | 22 | 3 |
| Aruba IT4 - Rome | Aruba S.p.A | Rome | Italy | 16 | 3 |
| AS43668 Kyiv | AS43668 LLC | Kyiv | Ukraine | 0 | 0 |