AS25511 — ASN-NET21

AS25511 announces 3 IPv4 prefixes covering 6,144 addresses and 0 IPv6 prefixes.

About this network

The AS handle ASN-NET21 is held by JSC "RCS".

What it's used for

• The address space is registered under netnames RU-RUCESV-20021127, RU-RUCESV-20061204, and RU-RUCESV-20150707, all associated with the registrant JSC "RCS".
• The network announces 6144 IPv4 addresses across 3 prefixes and maintains 1 observed neighbour, a ratio that suggests an internal corporate estate or limited access network rather than a transit provider.

Notable

• All three announced prefixes list JSC "RCS" as the registrant, matching the AS holder.
• The inventory consists of three distinct IPv4 blocks: 217.12.240.0/20, 91.103.196.0/22, and 185.108.0.0/22, with no IPv6 prefixes in the inventory.

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

Announced prefixes

• 91.103.196.0/22
• 185.108.0.0/22
• 217.12.240.0/20

Upstream networks

• AS197453 Biz Telecom LLC

Adjacent networks

• AS197453 Biz Telecom LLC