AS198510 — XTDef XTDEF-Limited

AS198510 announces 7 IPv4 prefixes covering 1,792 addresses and 6 IPv6 prefixes.

About this network

XTDEF is operated by XTDef Limited.

What it's used for

• The address space carries residential customer premises equipment, as indicated by reverse DNS entries such as cpe-80-246-224-64.cpe-ljubljana.xtdef.com and cpe-89-116-221-64.cpe-dublin.xtdef.com.
• The AS announces 1792 IPv4 addresses across 7 prefixes and 6 IPv6 prefixes, with 4 observed neighbours, a ratio consistent with an access network providing last-mile connectivity.
• Traffic from this AS consists of subscriber eyeballs for cable and DSL services, as confirmed by the PeeringDB classification of "Cable/DSL/ISP" and the cpe reverse DNS naming convention.

Notable

• Registrants for most prefixes are XTDef Limited, though 89.116.221.0/24 is registered to SC "Lithuanian Radio and TV Center" with the netname LRTCINETNUMRENT, indicating leased address space.
• The address inventory is geographically diverse, with reverse DNS pointing to Ljubljana and Dublin, despite the AS being registered in Hong Kong.
• The AS was first seen in RIS on 2023-07-05, indicating a relatively recent deployment.

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

Announced prefixes

• 62.112.204.0/24
• 79.176.1.0/24
• 80.246.224.0/24
• 89.116.221.0/24
• 167.148.42.0/24
• 178.92.60.0/24
• 178.214.213.0/24
• 2a0c:9a40:8c80::/48
• 2a0c:9a40:8c83::/48
• 2a0c:9a40:8c84::/46
• 2a0c:9a40:8c88::/48
• 2a0c:9a40:8c8d::/48
• 2a0c:9a40:8c8e::/48

Upstream networks

• AS40994 Hohl IT e.U.
• AS20473 The Constant Company, LLC
• AS35487 Misaka Network, Inc.
• AS29405 VNET a.s.

Adjacent networks

• AS40994 Hohl IT e.U.
• AS20473 The Constant Company, LLC
• AS35487 Misaka Network, Inc.
• AS29405 VNET a.s.

Routing security

• RPKI: 15 valid, 0 invalid and 0 not-found announcements; 9 ROAs.
• ASPA: none published.
• IRR: 87% of announcements registered; 32 route objects.
• Listed in as-sets: AS-29802-CUSTOMERS, AS-IFOG, AS-IFOG, AS-MISAKA-CUSTOMERS2, AS-PACKET, AS-RETN-ACTUAL-V6, AS-TERASWITCH, AS-TERASWITCH, AS-TERRAHOST, AS-TRANSROUTE-SPEC, AS-VNET, AS198510:AS-NET, AS20473:AS-VULTR, AS29405:AS-VNET, AS40994:AS-CUSTOMERS-AT, AS53667:AS-CUSTOMERS, AS56655:AS-GIGAHOST, AS917:AS-CUSTOMERS, AS917:AS-CUSTOMERS-LARGE.