AS9175 — CIRCIT CircIT GmbH & Co.KG

AS9175 announces 5 IPv4 prefixes covering 68,864 addresses and 0 IPv6 prefixes.

About this network

CIRCIT is held by circ IT GmbH & Co. KG, an IT systems house (Systemhaus) based in Düsseldorf, Germany (circit.de).

What it's used for

The AS announces about five IPv4 prefixes (~68k addresses, dominated by 149.221.0.0/16), taking transit from AS3320 (Deutsche Telekom) and others. rDNS on the sampled 195.216.220.0/23 addresses returned only bare in-addr.arpa names, so the space carries no descriptive host naming. This is a business IT/managed-services provider serving corporate customers rather than a consumer ISP.

Notable

• Abuse contact [email protected]; registered in Düsseldorf.
• First seen in BGP in 2000, but only a single observed neighbour despite the large /16, consistent with a single-homed enterprise/managed-hosting network.

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

Announced prefixes

• 91.199.169.0/24
• 149.221.0.0/16
• 193.194.144.0/23
• 193.254.176.0/21
• 195.216.220.0/23

Upstream networks

• AS3320 Deutsche Telekom AG

Adjacent networks

• AS3320 Deutsche Telekom AG

Routing security

• RPKI: 0 valid, 0 invalid and 5 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 5 route objects.
• Listed in as-sets: AS3320:AS-DTAG, AS3320:AS-DTAG-V6, AS8220:AS-COLTDE.