AS207021 — RCODEZERO-ANYCAST-SEC2 ipcom GmbH

AS207021 announces 5 IPv4 prefixes covering 1,280 addresses and 4 IPv6 prefixes.

About this network

The AS handle RCODEZERO-ANYCAST-SEC2 is held by ipcom GmbH, the operator of the RcodeZero anycast DNS service.

What it's used for

• The address space carries anycast DNS infrastructure, evidenced by netnames ANYCAST-CLOUD2, CentralNic-Anycast-K, and CentralNic-Anycast-J, and the reverse DNS record b.babieldns.de.
• The AS announces 1280 IPv4 addresses and 4 IPv6 prefixes with only 3 observed neighbours, a ratio indicating a specialized service network rather than a transit or access provider.
• Traffic from this AS consists of DNS query and response packets for the RcodeZero service, which provides authoritative and recursive DNS resolution.

Notable

• Registrants include ipcom GmbH, Name ISP NOC, nic.at GmbH, and CentralNic Network Operations (1api GmbH), reflecting the collaborative nature of the anycast deployment with partners like CentralNic and the Austrian registry nic.at.
• ipcom GmbH is a sister company of the Austrian domain registry nic.at, founded in 2005 with a focus on telephony, VoIP, and DNS services.
• The inventory consists of five IPv4 /24 prefixes and four IPv6 /48 prefixes, all located in Austria.

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

Announced prefixes

• 176.97.158.0/24
• 185.167.176.0/24
• 193.46.135.0/24
• 194.0.182.0/24
• 194.50.187.0/24
• 2001:67c:10b8::/48
• 2a02:850:ffe7::/48
• 2a04:2b00:14dd::/48
• 2a0b:8e00:1::/48

Upstream networks

• AS36236 NetActuate, Inc
• AS30971 nic.at GmbH

Downstream networks

• AS35052 ACONET

Adjacent networks

• AS36236 NetActuate, Inc
• AS30971 nic.at GmbH
• AS35052 ACONET

Routing security

• RPKI: 16 valid, 0 invalid and 2 not-found announcements; 40 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 48 route objects.
• Listed in as-sets: AS-CTBC-CUSTOMERS109, AS-CTBC-CUSTOMERS59, AS-HOSTVIRTUAL, AS-IPCOMGMBH, AS-LAYER2-TRANSIT, AS-NETACTUATE, AS-NICAT, AS-RCODEZERO, AS63830:AS-AKL-IX.