AS13118 — ASN-YARTELECOM PJSC Rostelecom. Yaroslavl branch

AS13118 announces 25 IPv4 prefixes covering 11,008 addresses and 0 IPv6 prefixes.

About this network

Twenty-eight announcements averaging under 400 addresses each, with hosts named after a planet.

What it's used for

• The Yaroslavl regional network of a Russian national operator. 11,008 addresses across 28 IPv4 prefixes, three observed BGP neighbours, and no IPv6 announced.

Notable

• Twenty-eight prefixes for 11,008 addresses, most of them /23s and /24s.
• Netnames alternate between MACROREGIONALCENTER and RU-RTK, dated 20000906, 20080502 and 20090126.
• Two of 18 sampled addresses returned names: saturn.yaroslavl.ru and maxim2.yaroslavl.ru.
• One prefix could not be looked up in the registry; the fetch failed.

Interesting

• Twenty-eight separate announcements for eleven thousand addresses is close to the worst ratio in this range. Each one occupies a slot in every routing table on the internet, and the pieces are not adjacent, so they cannot be merged. This is what a regional network looks like after two decades of taking whatever blocks were free.
• The two hostnames that answered are individually chosen: a planet and a personal name with a number after it. Hand-named machines are the mark of a network built before automation, and they survive in the zone long after the convention stopped scaling.
• MACROREGIONALCENTER appears here and on another regional arm of the same parent elsewhere in this range, so the label is the group's internal tier name reused verbatim across the country.

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

Announced prefixes

• 85.113.192.0/24
• 85.113.195.0/24
• 85.113.197.0/24
• 85.113.200.0/24
• 85.113.203.0/24
• 85.113.204.0/24
• 85.113.207.0/24
• 87.253.12.0/23
• 87.253.14.0/24
• 93.181.224.0/23
• 95.86.204.0/22
• 95.86.208.0/23
• 109.161.48.0/24
• 109.161.52.0/24
• 109.161.57.0/24
• 109.161.59.0/24
• 217.15.130.0/23
• 217.15.132.0/22
• 217.15.136.0/24
• 217.15.138.0/23
• 217.15.140.0/22
• 217.15.144.0/22
• 217.15.149.0/24
• 217.15.150.0/23
• 217.15.158.0/24

Upstream networks

• AS12389 PJSC Rostelecom

Downstream networks

• AS50750 TK Center Ltd
• AS5572 Botik Technologies LTD

Adjacent networks

• AS12389 PJSC Rostelecom
• AS50750 TK Center Ltd
• AS5572 Botik Technologies LTD