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Autonomous System

AS31317

AnschlussWerk GmbH

Announced IPs
26,112
CIDR prefixes
16
ASN
AS31317

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 50-100Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Selective
IRR record RIPE::AS-ANSCHLUSSWERK

Present at 5 internet exchanges: SAIX: Public Peering LAN, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, VIX, DE-CIX Munich: DE-CIX Munich Peering LAN, Peering.cz

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS31317 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
185.114.140.0/22 480,587 2026-09-07 15:59:39
185.206.121.0/24 375,770 2026-09-07 15:59:39
185.156.28.0/22 327,691 2026-09-07 15:59:39
91.198.136.0/24 296,155 2026-09-07 15:59:39
195.192.192.0/21 290,419 2026-09-07 15:59:39
37.251.232.0/21 207,260 2026-09-07 15:59:39
185.178.56.0/22 180,005 2026-09-07 15:59:39
45.119.124.0/22 176,941 2026-09-07 15:59:39
185.95.112.0/22 150,759 2026-09-07 15:59:39
5.154.171.0/24 91,866 2026-09-07 15:59:39
37.251.224.0/21 30,174 2026-09-07 15:24:26
195.192.200.0/21 26,217 2026-09-07 15:58:04
31.209.160.0/20 25,643 2026-09-07 15:24:26
185.170.244.0/22 22,161 2026-09-07 15:58:04
31.220.112.0/21 17,028 2026-09-07 14:06:21
77.87.191.0/24 15,312 2026-09-07 15:47:14
46.253.64.0/20 12,431 2026-09-07 15:47:14
80.224.236.0/23 11,674 2026-09-07 15:59:39

Frequently Asked Questions

What is AS31317?

AS31317 is an Autonomous System Number assigned to AnschlussWerk GmbH. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS31317 announce?

AS31317 announces 26.1K IPv4 addresses distributed across 16 routed CIDR prefixes. The network is registered in Germany.

Who operates AS31317?

AS31317 is operated by AnschlussWerk GmbH. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.

What country is AS31317 registered in?

AS31317 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-07 15:55:32 UTC
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