| 217.110.0.0/15 | COLT | 131K | GB |
| 136.225.0.0/16 | COLT Technology Services | 66K | GB |
| 148.109.0.0/16 | Colt Technology Services Co., Ltd. Izumi Garden Tower, 27F 1 | 66K | GB |
| 213.61.0.0/16 | COLT-DE | 66K | GB |
| 213.86.0.0/16 | COLT | 66K | GB |
| 57.133.0.0/16 | COLT Technology Services | 66K | GB |
| 58.0.0.0/16 | COLT Technology Services | 66K | GB |
| 62.23.0.0/16 | FR-COLT-FRANCE | 66K | GB |
| 62.96.0.0/16 | COLT-DE | 66K | GB |
| 80.169.0.0/16 | COLT | 66K | GB |
| 84.14.0.0/16 | FR-COLT-INTERNET-84-14 | 66K | GB |
| 116.83.0.0/17 | COLT Technology Services | 33K | GB |
| 195.68.0.0/17 | ImagiNET France | 33K | GB |
| 212.161.0.0/17 | COLT | 33K | GB |
| 213.215.128.0/17 | COLT Internet IT | 33K | GB |
| 213.27.128.0/17 | COLT Espana Customer Networks | 33K | GB |
| 213.41.0.0/17 | FR-COLT-FRANCE | 33K | GB |
| 58.1.128.0/17 | COLT Technology Services | 33K | GB |
| 158.162.192.0/18 | UCP | 16K | GB |
| 212.123.192.0/18 | COLT-NL | 16K | GB |
| 212.203.64.0/18 | COLT Internet CH | 16K | GB |
| 213.208.192.0/18 | COLT-NL | 16K | GB |
| 213.229.128.0/18 | COLT Espana Customer Networks | 16K | GB |
| 213.246.192.0/18 | COLT-BE | 16K | GB |
| 62.97.64.0/18 | COLT Espana Customer Networks | 16K | GB |
| 78.143.0.0/18 | COLT Technology Services | 16K | GB |
| 87.241.0.0/18 | COLT Internet IT | 16K | GB |
| 90.152.0.0/18 | Regus Management Limited | 16K | GB |
| 90.152.64.0/18 | Regus Management Limited | 16K | GB |
| 118.67.224.0/19 | COLT-UK | 8.2K | GB |
| 157.2.32.0/19 | proxy object for customer to build route filter | 8.2K | GB |
| 158.162.32.0/19 | COLT | 8.2K | GB |
| 193.118.224.0/19 | COLT-UK | 8.2K | GB |
| 193.82.0.0/19 | Colt Technology Services Co., Ltd. Izumi Garden Tower, 27F 1 | 8.2K | GB |
| 193.82.32.0/19 | COLT UK | 8.2K | GB |
| 195.110.64.0/19 | COLT | 8.2K | GB |
| 212.0.96.0/19 | COLT Espana Customer Networks | 8.2K | GB |
| 212.121.128.0/19 | COLT-DE | 8.2K | GB |
| 212.23.224.0/19 | COLT Internet CH | 8.2K | GB |
| 212.31.224.0/19 | COLT Internet IT | 8.2K | GB |
| 212.35.96.0/19 | COLT-BE | 8.2K | GB |
| 212.36.32.0/19 | Regus Group Services Ltd | 8.2K | GB |
| 212.78.160.0/19 | COLT-NL | 8.2K | GB |
| 213.164.0.0/19 | COLT Austria | 8.2K | GB |
| 213.173.160.0/19 | COLT Internet CH | 8.2K | GB |
| 213.185.160.0/19 | COLT Austria | 8.2K | GB |
| 46.248.128.0/19 | COLT | 8.2K | GB |
| 62.152.96.0/19 | COLT Internet IT | 8.2K | GB |
| 62.192.0.0/19 | COLT Internet CH | 8.2K | GB |
| 62.72.96.0/19 | COLT-BE | 8.2K | GB |
| 62.84.192.0/19 | COLT Internet backbone Sweden | 8.2K | GB |
| 80.251.160.0/19 | COLT Internet Portugal | 8.2K | GB |
| 80.80.0.0/19 | COLT Internet backbone Denmark | 8.2K | GB |
| 82.112.192.0/19 | COLT Internet IT | 8.2K | GB |
| 84.16.160.0/19 | COLT Telecom A/S | 8.2K | GB |
| 85.88.128.0/19 | COLT Internet Portugal | 8.2K | GB |
| 90.152.64.0/19 | Regus | 8.2K | GB |
| 90.152.96.0/19 | Regus | 8.2K | GB |
| 157.120.240.0/20 | COLT ASIA | 4.1K | GB |
| 178.159.176.0/20 | COLT Technology Services | 4.1K | GB |
| 194.223.144.0/20 | Colt Technology Services Co., Ltd. Izumi Garden Tower, 27F 1 | 4.1K | GB |
| 212.36.144.0/20 | COLT-UK-LIR | 4.1K | GB |
| 212.36.160.0/20 | COLT-UK-LIR | 4.1K | GB |
| 217.173.96.0/20 | COLT Internet Dublin | 4.1K | GB |
| 27.110.0.0/20 | Colt Technology Services Co., Ltd. Izumi Garden Tower, 27F 1 | 4.1K | GB |
| 78.156.64.0/20 | COLT Technology Services | 4.1K | GB |
| 95.175.192.0/20 | Regus Management Limited | 4.1K | GB |
| 95.175.208.0/20 | Regus Management Limited | 4.1K | GB |
| 157.120.224.0/21 | COLT Hongkong | 2K | GB |
| 157.2.48.0/21 | proxy object for customer to build route filter | 2K | GB |
| 193.16.48.0/21 | Beru AG | 2K | GB |
| 194.223.128.0/21 | COLT UK | 2K | GB |
| 212.36.184.0/21 | COLT-UK-LIR | 2K | GB |
| 78.156.80.0/21 | COLT Technology Services | 2K | GB |
| 103.138.100.0/22 | Digiagra, LLC. 106 Poulevards, 8-17, Nishikigaoka Kouhoku-ku | 1K | GB |
| 157.120.236.0/22 | COLT-20140310 | 1K | GB |
| 185.138.136.0/22 | Hailer | 1K | GB |
| 193.16.56.0/22 | Beru AG | 1K | GB |
| 194.115.212.0/22 | PSI-AG, Geschaeftsbereich PS | 1K | GB |
| 194.223.136.0/22 | COLT UK | 1K | GB |
| 194.223.140.0/22 | Colt Technology Services Co., Ltd. Izumi Garden Tower, 27F 1 | 1K | GB |
| 194.76.4.0/22 | Wuerttembergische Gemeinde Versicherung a.G. via Colt | 1K | GB |
| 27.110.16.0/22 | Colt Technology Services Co., Ltd. Izumi Garden Tower, 27F 1 | 1K | GB |
| 110.50.78.0/23 | Colt Technology Services Co., Ltd. | 512 | GB |
| 145.224.32.0/23 | Condor Flugdienst GmbH via COLT-UK | 512 | GB |
| 185.194.232.0/23 | Global route to ASII | 512 | GB |
| 193.111.24.0/23 | Clifford Chance | 512 | GB |
| 193.16.60.0/23 | Beru AG | 512 | GB |
| 193.33.182.0/23 | BlueBackup Belgium | 512 | GB |
| 193.96.108.0/23 | INPRO | 512 | GB |
| 194.76.2.0/23 | Wurttembergische Gemeinde-Versicherung AG | 512 | GB |
| 195.78.50.0/23 | COLT-BE | 512 | GB |
| 202.24.96.0/23 | Nippon Information Industry Corp. | 512 | GB |
| 202.24.98.0/23 | Nippon Information Industry Corp. | 512 | GB |
| 202.95.218.0/23 | Colt Technology Services Co., Ltd. | 512 | GB |
| 27.110.20.0/23 | Colt Technology Services Co., Ltd. | 512 | GB |
| 103.248.76.0/24 | QUINTRON SYSTEMS LIMITED 1 B,567,nam bin tsuen,fanling wai | 256 | GB |
| 129.41.90.0/24 | GSNI Portugal | 256 | US |
| 144.211.198.0/24 | proxy object for customer to build route filter | 256 | GB |
| 148.109.25.0/24 | TATA IZO | 256 | GB |
| 153.96.140.0/24 | Frauenhofer LUK-Gruppe | 256 | GB |
| 153.96.141.0/24 | COLT | 256 | GB |
| 155.45.128.0/24 | used for Atos INAC in Singapore (new from Oktber 2020 via CO | 256 | GB |
| 157.2.52.0/24 | COLT | 256 | GB |
| 185.157.227.0/24 | temp routing for 6DG | 256 | GB |
| 185.247.126.0/24 | PASARELA ILUMINACION S.L. | 256 | GB |
| 192.103.52.0/24 | Tokyo Office Wind River Systems 500 Wind River Way Alameda C | 256 | US |
| 192.109.56.0/24 | TuTech Innovation GmbH | 256 | GB |
| 192.187.137.0/24 | Added Colt AS number 6/29/22 | 256 | GB |
| 192.231.17.0/24 | KSP Kanzlei | 256 | GB |
| 192.51.54.0/24 | MATHEMATiCAL SYSTEMS iNSTiTUTE iNC. | 256 | GB |
| 193.102.132.0/24 | PSI, Geschaeftsbereich PI, Berlin | 256 | GB |
| 193.134.159.0/24 | Swiss National Insurance Company | 256 | GB |
| 193.141.139.0/24 | NEC-SX | 256 | GB |
| 193.16.155.0/24 | Kofax Austria GmbH | 256 | GB |
| 193.16.241.0/24 | GIVAUDAN | 256 | CH |
| 193.16.62.0/24 | Beru AG | 256 | GB |
| 193.17.178.0/24 | Bemobile Vertriebs GmbH | 256 | GB |
| 193.183.185.0/24 | FrontCapital | 256 | GB |
| 193.228.0.0/24 | CHEMSON | 256 | GB |
| 193.235.44.0/24 | Beckers Industrial Coatings AB | 256 | GB |
| 193.235.45.0/24 | Beckers Industrial Coatings AB | 256 | GB |
| 193.30.84.0/24 | COLT | 256 | GB |
| 193.36.242.0/24 | Allen and Overy | 256 | GB |
| 193.98.156.0/24 | PSI, Geschaeftsbereich GOW, Berlin | 256 | GB |
| 194.0.195.0/24 | CertEurope | 256 | GB |
| 194.113.246.0/24 | GAI NetConsult GmbH, Berlin | 256 | GB |
| 194.127.228.0/24 | DE-COLT-DMC | 256 | GB |
| 195.20.223.0/24 | Agilisys Ltd | 256 | GB |
| 195.234.180.0/24 | SCOR Services Switzerland AG | 256 | GB |
| 195.68.74.0/24 | TATA IZO | 256 | GB |
| 202.255.101.0/24 | Mainichi Broadcasting System,Inc. | 256 | GB |
| 202.255.102.0/24 | Mainichi Broadcasting System,Inc. | 256 | GB |
| 202.7.104.0/24 | Colt Technology Services Co., Ltd. | 256 | GB |
| 208.85.76.0/24 | proxy object for customer to build route filter | 256 | GB |
| 212.74.77.0/24 | COLT Internal 4 | 256 | GB |
| 212.74.78.0/24 | COLT Internal 5 | 256 | GB |
| 212.74.79.0/24 | COLT Internal 6 | 256 | GB |
| 38.210.238.0/24 | Route Registered for Cogent Communications Customer - Babylo | 256 | GB |
| 46.248.14.0/24 | COLT | 256 | GB |
| 46.28.184.0/24 | syzygy Deutschland GmbH | 256 | GB |
| 62.23.14.0/24 | TATA IZO | 256 | GB |
| 62.23.23.0/24 | TATA IZO | 256 | GB |
| 62.23.254.0/24 | TATA IZO | 256 | GB |
| 62.23.255.0/24 | TATA IZO | 256 | GB |
| 62.23.43.0/24 | TATA IZO | 256 | GB |
| 62.23.61.0/24 | TATA IZO | 256 | GB |
| 62.23.70.0/24 | TATA IZO | 256 | GB |
| 84.14.217.0/24 | TATA IZO | 256 | GB |
| 84.14.63.0/24 | TATA IZO | 256 | GB |
| 91.212.43.0/24 | FIS-Global-Trading | 256 | GB |