AS31078 — NETWORKTOWN-AS Alexej Senderkin

AS31078 announces 3 IPv4 prefixes covering 7,168 addresses and 1 IPv6 prefixes.

About this network

NETWORKTOWN-AS is operated by Networktown, a German network service provider.

What it's used for

• The address space carries static residential or business connections, evidenced by reverse DNS entries such as static-217-115-7-255.inaddr.netsign.net and static-31-220-139-255.inaddr.netsign.net.
• The AS announces 7168 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 17 observed neighbours. This ratio of address space to peering partners suggests a regional access or last-mile provider rather than a large transit backbone.

Notable

• All registrants for the announced prefixes (217.115.0.0/20, 31.220.136.0/21, 193.34.24.0/22) are listed as Networktown Guardian, Alexej Senderkin, and Networktown Abuse Contact, aligning perfectly with the AS holder.
• The address inventory consists of three distinct IPv4 blocks and one IPv6 block, all located in Germany, indicating a focused domestic footprint.

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

Announced prefixes

• 31.220.136.0/21
• 193.34.24.0/22
• 217.115.0.0/20
• 2a00:1328::/32

Upstream networks

• AS9136 Wobcom GmbH
• AS13237 euNetworks GmbH
• AS24482 SG.GS
• AS8218 Zayo Infrastructure France SA
• AS6797 GlobalConnect AB
• AS9002 RETN Limited

Downstream networks

• AS206028 Datenreisen UG
• AS208262 Stefan Wahl trading as open 7 e.Kfm
• AS50575 Alexej Senderkin
• AS208477 Rolf Schulz
• AS31010 Dennis Thomas
• AS211752 mih Net Berlin GmbH

Adjacent networks

• AS9136 Wobcom GmbH
• AS13237 euNetworks GmbH
• AS206028 Datenreisen UG
• AS208262 Stefan Wahl trading as open 7 e.Kfm
• AS6939 Hurricane Electric LLC
• AS50575 Alexej Senderkin
• AS208477 Rolf Schulz
• AS31010 Dennis Thomas
• AS8218 Zayo Infrastructure France SA
• AS24482 SG.GS
• AS6797 GlobalConnect AB
• AS9002 RETN Limited
• AS211752 mih Net Berlin GmbH

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 5 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 8 route objects.
• Listed in as-sets: AS-KPN, AS-NETSIGN, AS-NETWORKTOWN, AS-PLUSSERVER, AS-XO-B, AS1299:AS-TWELVE99-EU-V4, AS1299:AS-TWELVE99-EU-V6, AS61180:AS-PEERS-AMSIX.

Internet exchanges

• Berlin Commercial Internet Exchange — Berlin, Germany