| 206.0.0.0/8 | WHOIS (ARIN) | American Registry for Internet Numbers | US |
| 206.104.0.0/14 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.104.0.0/14 | WHOIS (ARIN) | Cogent Communications, LLC | US |
| 206.104.0.0/14 | ARIN assigned | — | US |
| 206.106.0.0/17 | WHOIS (ARIN) | RCN | US |
| 206.107.96.0/19 | WHOIS (ARIN) | Sprint Midatlantic Telecom | — |
| 206.105.16.0/20 | BGP route | AS6062 NETPLEX | — |
| 206.105.176.0/20 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.106.0.0/20 | BGP route | AS7029 Windstream Communications LLC | — |
| 206.106.16.0/20 | BGP route | AS7029 Windstream Communications LLC | — |
| 206.106.32.0/20 | BGP route | AS22773 Cox Communications Inc. | — |
| 206.106.48.0/20 | BGP route | AS4637 Telstra International Limited | — |
| 206.106.64.0/20 | BGP route | AS7029 Windstream Communications LLC | — |
| 206.106.80.0/20 | BGP route | AS7029 Windstream Communications LLC | — |
| 206.106.96.0/20 | BGP route | AS7029 Windstream Communications LLC | — |
| 206.106.112.0/20 | BGP route | AS7029 Windstream Communications LLC | — |
| 206.107.96.0/20 | BGP route | AS5778 CenturyLink Communications, LLC | — |
| 206.105.64.0/21 | BGP route | AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC | — |
| 206.105.64.0/21 | WHOIS (ARIN) | Telecom Columbia | CO |
| 206.105.200.0/21 | BGP route | AS5778 CenturyLink Communications, LLC | — |
| 206.106.32.0/21 | BGP route | AS10753 Level 3 Parent, LLC | — |
| 206.106.40.0/21 | BGP route | AS46450 Pilot Fiber, Inc. | — |
| 206.106.248.0/21 | WHOIS (ARIN) | Telecom Columbia | CO |
| 206.107.40.0/21 | BGP route | AS4373 Online Computer Library Center | — |
| 206.107.40.0/21 | WHOIS (ARIN) | OCLC, Inc. | US |
| 206.107.112.0/21 | BGP route | AS5778 CenturyLink Communications, LLC | — |
| 206.107.120.0/21 | BGP route | AS5778 CenturyLink Communications, LLC | — |
| 206.107.136.0/21 | BGP route | AS19783 APPRISS INC | — |
| 206.107.136.0/21 | WHOIS (ARIN) | APPRISS INC | US |
| 206.107.152.0/21 | BGP route | AS33154 DQE Communications LLC | — |
| 206.107.152.0/21 | WHOIS (ARIN) | MetNet Communications, Inc. | — |
| 206.104.212.0/22 | BGP route | AS18632 Volcano Vision, Inc. | — |
| 206.104.212.0/22 | WHOIS (ARIN) | Volcano Vision, Inc. | US |
| 206.105.204.0/22 | BGP route | AS5778 CenturyLink Communications, LLC | — |
| 206.106.132.0/22 | BGP route | AS21547 FirstLight Networks, LLC | — |
| 206.106.252.0/22 | BGP route | AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC | — |
| 206.107.124.0/22 | WHOIS (ARIN) | Intermedia Internet Service | US |
| 206.107.220.0/22 | BGP route | AS11398 CenturyLink Communications, LLC | — |
| 206.107.220.0/22 | WHOIS (ARIN) | CenturyLink Communications, LLC | US |
| 206.104.100.0/23 | BGP route | AS32614 High Desert Internet Services | — |
| 206.104.100.0/23 | WHOIS (ARIN) | High Desert Internet Services | US |
| 206.104.132.0/23 | WHOIS (ARIN) | T Mobile USA | US |
| 206.107.196.0/23 | BGP route | AS18632 Volcano Vision, Inc. | — |
| 206.107.196.0/23 | WHOIS (ARIN) | Volcano Vision, Inc. | US |
| 206.104.31.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.104.31.0/24 | WHOIS (ARIN) | Advanced Energy | US |
| 206.104.56.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.104.56.0/24 | WHOIS (ARIN) | NC Mutual Wholesale Drug Co | US |
| 206.104.62.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.104.62.0/24 | WHOIS (ARIN) | Amaitis & Associates Inc. | US |
| 206.104.63.0/24 | WHOIS (ARIN) | west central wireless | US |
| 206.104.103.0/24 | BGP route | AS18567 Credit Union of Texas | — |
| 206.104.103.0/24 | WHOIS (ARIN) | Credit Union of Texas | US |
| 206.104.212.0/24 | BGP route | AS18632 Volcano Vision, Inc. | — |
| 206.104.213.0/24 | BGP route | AS18632 Volcano Vision, Inc. | — |
| 206.104.214.0/24 | BGP route | AS18632 Volcano Vision, Inc. | — |
| 206.104.215.0/24 | BGP route | AS18632 Volcano Vision, Inc. | — |
| 206.105.116.0/24 | BGP route | AS27932 Redes y Telecomunicaciones | — |
| 206.105.176.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.177.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.178.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.179.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.180.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.181.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.182.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.183.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.184.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.185.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.186.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.187.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.188.0/24 | BGP route | AS174 Cogent Communications, LLC | — |
| 206.105.209.0/24 | WHOIS (ARIN) | Com-graphics, Inc. | US |
| 206.105.213.0/24 | WHOIS (ARIN) | High Desert Internet Services | US |
| 206.106.137.0/24 | WHOIS (ARIN) | Timber Hill LLC | US |
| 206.107.76.0/24 | WHOIS (ARIN) | Civco/PADI International | US |
| 206.107.78.0/24 | WHOIS (ARIN) | Digital Insight Corporation | US |
| 206.107.97.0/24 | WHOIS (ARIN) | CAROLINA CONNECTION | US |
| 206.107.98.0/24 | WHOIS (ARIN) | DataTrend Technologies | US |
| 206.107.99.0/24 | WHOIS (ARIN) | Always Online | US |
| 206.107.100.0/24 | WHOIS (ARIN) | DataTrend Technologies | US |
| 206.107.101.0/24 | WHOIS (ARIN) | Higher Learning Systems | US |
| 206.107.103.0/24 | WHOIS (ARIN) | Strategic Resources Solution | US |
| 206.107.105.0/24 | WHOIS (ARIN) | Carolina Internet Services, Inc. | US |
| 206.107.107.0/24 | WHOIS (ARIN) | Dock Point | US |
| 206.107.109.0/24 | WHOIS (ARIN) | McNeill Enterprises | US |
| 206.107.115.0/24 | WHOIS (ARIN) | Twin County Internet | US |
| 206.107.117.0/24 | WHOIS (ARIN) | Harnett County Board of Education | US |
| 206.107.118.0/24 | WHOIS (ARIN) | The Wire company | US |
| 206.107.119.0/24 | WHOIS (ARIN) | The Wire company | US |
| 206.107.122.0/24 | WHOIS (ARIN) | Tusculum College | US |
| 206.107.134.0/24 | WHOIS (ARIN) | KANSAS CITY CHIEFS/K C WIZARDS | US |
| 206.107.211.0/24 | WHOIS (ARIN) | John Muir/Mt. Diablo Health System | US |
| 206.107.235.0/24 | WHOIS (ARIN) | NORTHWESTERN CORPORATION | US |
| 206.104.135.128/25 | WHOIS (ARIN) | SALINA UNIFIED SCHOOL DISTRICT | US |
| 206.104.149.128/25 | WHOIS (ARIN) | AKAMAI TECHNOLOGIES, INC | US |
| 206.105.13.128/25 | WHOIS (ARIN) | KRASDALE FOODS | US |
| 206.107.111.128/25 | WHOIS (ARIN) | MUSEUMCOMPANY.COM | US |
| 206.107.114.128/25 | WHOIS (ARIN) | Fastransit Communications | US |
| 206.107.152.128/25 | WHOIS (ARIN) | CLUBCOM INC | US |
| 206.104.55.64/26 | WHOIS (ARIN) | INTERTEC PUBLISHING CORPORATION | US |
| 206.104.181.64/26 | WHOIS (ARIN) | ENERGY SERVICES GROUP | US |