AS21030 — CDNNOW-AS

Network type: hosting

AS21030 announces 8 IPv4 prefixes covering 3,328 addresses and 1 IPv6 prefixes.

About this network

The AS handle CDNNOW-AS is operated by Docker, a Russian content delivery network and hosting provider.

What it's used for

• The address space carries CDN and hosting infrastructure, evidenced by netnames RU-DOCKER-CDN and RU-DOCKER-CDN-2, and reverse DNS entries pointing to docker.ru.
• With 3328 IPv4 addresses announced across 8 prefixes and 53 observed neighbours, the ratio suggests a content delivery or hosting role rather than a large-scale transit provider.

Notable

• Most registrants are listed as "CEO; Cluster LLC; Abuse-C Role", aligning with the registry holder "Cluster LLC", while one prefix is registered to "Hong Xing Yao SDN. BHD.".
• The address inventory is finely subdivided into multiple /24 and /23 blocks, consistent with an internal corporate estate or segmented CDN infrastructure.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 62.204.57.0/24
• 85.209.68.0/22
• 130.49.154.0/24
• 185.40.154.0/23
• 185.253.21.0/24
• 185.253.22.0/23
• 216.162.46.0/24
• 217.119.139.0/24
• 2a04:8580:ffff::/48

Upstream networks

• AS62255 BiMajLink d.o.o.
• AS202984 Chernyshov Aleksandr Aleksandrovich
• AS39572 DataWeb Global Group B.V.
• AS35598 INETCOM CARRIER LLC
• AS3216 PJSC "Vimpelcom"
• AS6939 Hurricane Electric LLC
• AS20485 Joint Stock Company TransTeleCom
• AS20764 CJSC RASCOM
• AS48858 JSC "ER-Telecom Holding"
• AS59627 Docker LTD
• AS49673 Truenetwork LLC
• AS24482 SG.GS
• AS50673 Serverius Holding B.V.
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS56655 Gigahost AS
• AS206446 CLOUD LEASE Ltd
• AS57463 NetIX Communications JSC
• AS34927 iFog GmbH
• AS12389 PJSC Rostelecom

Downstream networks

• AS12567 GAIJIN NETWORK LTD
• AS208981 Data Center LLC
• AS48989 Cluster LLC

Adjacent networks

• AS62255 BiMajLink d.o.o.
• AS202984 Chernyshov Aleksandr Aleksandrovich
• AS39572 DataWeb Global Group B.V.
• AS35598 INETCOM CARRIER LLC
• AS3216 PJSC "Vimpelcom"
• AS12567 GAIJIN NETWORK LTD
• AS6939 Hurricane Electric LLC
• AS20485 Joint Stock Company TransTeleCom
• AS48858 JSC "ER-Telecom Holding"
• AS20764 CJSC RASCOM
• AS49673 Truenetwork LLC
• AS206446 CLOUD LEASE Ltd
• AS59627 Docker LTD
• AS24482 SG.GS
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS208981 Data Center LLC
• AS9049 JSC "ER-Telecom Holding"
• AS56655 Gigahost AS
• AS50673 Serverius Holding B.V.
• AS57463 NetIX Communications JSC
• AS48989 Cluster LLC
• AS34927 iFog GmbH
• AS37721 Virtual Technologies & Solutions
• AS12389 PJSC Rostelecom

Internet exchanges

• MSK-IX Moscow — Moscow, Russia
• GNM Internet Exchange Amsterdam — Amsterdam, Netherlands
• MSK-IX St. Petersburg — St. Petersburg, Russia
• MSK-IX Novosibirsk — Novosibirsk, Russia
• MSK-IX Ekaterinburg — Ekaterinburg, Russia
• KG-IX — Bishkek, Kyrgyzstan
• Ulyanovsk Internet Exchange — Ulyanovsk, Russia