AS51167
Operated by CONTABO Contabo GmbH.
Summary
- // analyst note
- Very commonly seen in scan/spam triage; Contabo's cheap-VPS churn means today's tenant is rarely yesterday's — treat per-IP and timestamp the signal.
- // security note
- DATED/NEUTRAL, multi-tenant: an IP is a cheap VPS that churns rapidly among customers; attribute to tenant.
About this ASN.
AS51167 is the network of Contabo GmbH, a well-known German ultra-budget VPS and dedicated-server provider, registered under RIPE out of Munich. It is a large hosting presence in Germany — bgp.tools ranks it among the top networks in the country for unique domains hosted (around 700,000) and for originated IPv4 space — while announcing roughly 565 IPv4 prefixes (~460,800 addresses) and only a handful of IPv6 prefixes, taking transit from Arelion, Lumen/Level3, Cogent, and Aptum. CAIDA places it at #12622 as essentially a stub: a single-ASN cone with no meaningful onward transit. As multi-tenant budget compute the standard caveat applies — an IP is a cheap VPS that churns rapidly among customers, so reputation must attach to the current tenant rather than to Contabo. Its low price point makes it a recurring source in scanning and abuse datasets: Cloudflare's 2025 Q1 DDoS Threat Report ranked Contabo the fourth-largest source of HTTP DDoS attacks, behind Hetzner, OVH, and DigitalOcean, and it carries recurrent community spam complaints and Spamhaus SBL listings. This reflects cheap compute abused by tenants on reassigned IPs, not operator intent, and every signal should be timestamped.
- Operator
- Contabo GmbH (RIPE org ORG-GG22-RIPE, Munich) [Confirmed] — RIPE WHOIS
- Country / RIR
- DE, RIPE [Confirmed] — RIPE WHOIS
- Allocated
- 2010-06-11 (org created 2009-12-09) [Confirmed] — RIPE / bgp.tools
- Org status
- active — contabo.com
Security/abuse context (DATED, NEUTRAL — multi-tenant)
an IP is a cheap VPS that churns rapidly among customers; attribute to tenant. Cloudflare 2025 Q1 DDoS report #4 HTTP-DDoS source (behind Hetzner #1, OVH #2, DigitalOcean #3); recurrent community spam complaints (LowEndTalk) and Spamhaus SBL listings. Reflects cheap compute abused by tenants on reassigned IPs, not operator intent — blog.cloudflare.com/ddos-threat-report-for-2025-q1, spamhaus.org
Network & routing
- Network type
- hosting-VPS / dedicated [Confirmed]
- Size
- ~565 IPv4 prefixes, ~5–7 IPv6 (~460,800 addrs originated) — bgp.he.net (2026-06)
- Routing/peering
- upstreams Arelion (AS1299), Lumen (AS3356), Cogent (AS174), Aptum (AS13768); RPKI ~550 v4 valid, 0 invalid — bgp.tools, dnslytics.com
- Notable usage
- German ultra-budget VPS/dedicated-server provider; ~700K domains hosted; top-tier in Germany by domains and originated IPv4 — contabo.com
- Related ASNs
- historically tied to GIGA-HOSTING maintainer objects (MNT-GIGA-HOSTING) in RIPE [Likely]
- Analyst note
- Very commonly seen in scan/spam triage; Contabo's cheap-VPS churn means today's tenant is rarely yesterday's — treat per-IP and timestamp the signal.
What this network routes.
- 169.58.0.0/17
- 169.58.128.0/17
- 13.140.128.0/18
- 194.163.128.0/18
- 84.247.160.0/19
- 38.242.224.0/19
- 38.242.192.0/19
- 173.212.192.0/19
- 161.97.128.0/19
- 75.119.128.0/19
- 158.220.112.0/20
- 5.189.144.0/20
- 5.189.176.0/20
- 84.46.240.0/20
- 213.199.32.0/20
- 109.123.240.0/20
- 161.97.160.0/20
- 109.199.112.0/20
- 217.76.48.0/20
- 157.173.96.0/20
- 84.247.128.0/20
- 89.117.48.0/20
- 109.199.96.0/20
- 37.60.224.0/20
- 213.199.48.0/20
- 158.220.96.0/20
- 5.189.128.0/20
- 37.60.240.0/20
- 173.212.224.0/20
- 158.220.80.0/20
- 94.72.96.0/20
- 62.84.176.0/20
- 5.189.160.0/20
- 157.173.112.0/20
- 178.18.240.0/20
- 77.237.232.0/21
- 80.190.80.0/21
- 62.169.24.0/21
- 31.220.72.0/21
- 149.102.152.0/21
- 89.250.64.0/21
- 62.169.16.0/21
- 100.42.176.0/21
- 31.220.80.0/21
- 77.237.240.0/21
- 62.164.216.0/21
- 31.220.88.0/21
- 161.97.176.0/21
- 184.174.32.0/21
- 38.242.144.0/21
- 38.242.136.0/21
- 173.212.240.0/21
- 212.47.64.0/21
- 38.242.152.0/21
- 100.42.184.0/21
- 198.7.112.0/21
- 149.102.136.0/21
- 198.7.120.0/21
- 38.242.128.0/21
- 212.47.72.0/21
- 195.179.224.0/21
- 89.250.72.0/21
- 89.116.24.0/21
- 62.164.208.0/21
- 149.102.128.0/21
- 149.102.144.0/21
- 109.205.180.0/22
- 156.67.28.0/22
- 192.144.8.0/22
- 156.67.24.0/22
- 81.17.100.0/22
- 173.212.248.0/22
- 82.208.20.0/22
- 91.205.172.0/22
- 162.244.28.0/22
- 161.97.184.0/22
- 85.190.240.0/22
- 147.93.160.0/22
- 81.17.96.0/22
- 156.67.80.0/22
- 162.244.24.0/22
- 45.13.192.0/22
- 185.2.100.0/22
- 134.255.180.0/22
- 109.205.176.0/22
- 134.255.176.0/22
- 86.48.0.0/22
- 173.249.36.0/23
- 213.136.86.0/23
- 173.249.62.0/23
- 178.238.232.0/23
- 185.192.96.0/23
- 144.91.76.0/23
- 185.133.248.0/23
- 173.249.60.0/23
- 144.91.74.0/23
- 95.111.224.0/23
- 45.159.222.0/23
- 95.111.250.0/23
- 62.171.176.0/23
- 185.214.134.0/23
- 62.171.138.0/23
- 161.97.108.0/23
- 207.180.250.0/23
- 144.91.92.0/23
- 213.136.70.0/23
- 185.182.186.0/23
- 164.68.96.0/23
- 173.249.58.0/23
- 167.86.92.0/23
- 167.86.78.0/23
- 178.238.224.0/23
- 79.143.182.0/23
- 95.111.246.0/23
- 212.90.120.0/23
- 161.97.72.0/23
- 173.249.46.0/23
- 95.111.234.0/23
- 164.68.102.0/23
- 45.10.160.0/23
- 207.180.242.0/23
- 80.241.220.0/23
- 185.215.164.0/23
- 62.171.186.0/23
- 164.68.98.0/23
- 161.97.110.0/23
- 167.86.66.0/23
- 161.97.94.0/23
- 185.182.184.0/23
- 62.171.140.0/23
- 45.149.206.0/23
- 213.136.74.0/23
- 207.180.192.0/23
- 207.180.204.0/23
- 45.8.132.0/23
- 185.133.250.0/23
- 81.0.218.0/23
- 185.218.124.0/23
- 193.22.146.0/23
- 207.180.254.0/23
- 144.91.64.0/23
- 62.171.128.0/23
- 173.249.50.0/23
- 79.143.186.0/23
- 62.171.190.0/23
- 161.97.76.0/23
- 167.86.100.0/23
- 144.91.110.0/23
- 173.249.42.0/23
- 144.91.68.0/23
- 5.180.148.0/23
- 173.249.32.0/23
- 213.136.66.0/23
- 45.149.204.0/23
- 95.111.230.0/23
- 147.78.130.0/23
- 213.136.80.0/23
- 167.86.88.0/23
- 178.238.226.0/23
- 144.91.84.0/23
- 62.171.182.0/23
- 173.249.54.0/23
- 164.68.110.0/23
- 207.180.246.0/23
- 144.91.124.0/23
- 144.91.70.0/23
- 79.143.178.0/23
- 161.97.104.0/23
- 173.249.56.0/23
- 79.143.180.0/23
- 62.171.144.0/23
- 161.97.114.0/23
- 2.58.80.0/23
- 144.91.94.0/23
- 164.68.112.0/23
- 207.180.208.0/23
- 207.180.196.0/23
- 213.136.90.0/23
- 45.10.162.0/23
- 95.111.244.0/23
- 161.97.126.0/23
- 45.90.122.0/23
- 167.86.76.0/23
- 178.238.228.0/23
- 167.86.118.0/23
- 164.68.124.0/23
- 213.136.84.0/23
- 167.86.96.0/23
- 164.68.104.0/23
- 173.249.18.0/23
- 144.91.104.0/23
- 45.159.220.0/23
- 62.171.188.0/23
- 80.241.216.0/23
- 207.180.226.0/23
- 45.159.228.0/23
- 193.34.144.0/23
- 173.249.22.0/23
- 62.171.158.0/23
- 62.171.162.0/23
- 164.68.126.0/23
- 144.91.126.0/23
- 161.97.68.0/23
- 144.91.78.0/23
- 173.249.0.0/23
- 167.86.126.0/23
- 207.180.198.0/23
- 167.86.72.0/23
- 81.0.248.0/23
- 62.171.134.0/23
- 185.190.142.0/23
- 167.86.84.0/23
- 62.171.170.0/23
- 161.97.100.0/23
- 207.180.234.0/23
- 164.68.120.0/23
- 62.171.146.0/23
- 45.92.10.0/23
- 144.91.120.0/23
- 161.97.116.0/23
- 62.171.130.0/23
- 178.238.236.0/23
- 173.249.30.0/23
- 161.97.78.0/23
- 161.97.80.0/23
- 167.86.86.0/23
- 95.111.232.0/23
- 62.171.172.0/23
- 207.180.236.0/23
- 185.237.252.0/23
- 213.136.68.0/23
- 161.97.84.0/23
- 213.136.72.0/23
- 185.197.250.0/23
- 144.91.98.0/23
- 167.86.112.0/23
- 185.239.208.0/23
- 91.205.104.0/23
- 207.180.252.0/23
- 164.68.118.0/23
- 79.143.184.0/23
- 207.180.220.0/23
- 185.209.228.0/23
- 173.249.8.0/23
- 167.86.70.0/23
- 144.91.82.0/23
- 164.68.100.0/23
- 62.171.184.0/23
- 213.136.92.0/23
- 185.250.36.0/23
- 185.252.234.0/23
- 173.249.44.0/23
- 45.136.18.0/23
- 207.180.248.0/23
- 144.91.100.0/23
- 185.194.216.0/23
- 144.91.90.0/23
- 95.111.228.0/23
- 95.111.238.0/23
- 62.171.142.0/23
- 89.147.102.0/23
- 167.86.80.0/23
- 62.171.178.0/23
- 161.97.112.0/23
- 185.188.72.0/23
- 207.180.194.0/23
- 207.180.206.0/23
- 173.249.38.0/23
- 144.91.102.0/23
- 185.202.238.0/23
- 213.136.76.0/23
- 95.111.242.0/23
- 164.68.108.0/23
- 173.249.52.0/23
- 95.111.240.0/23
- 173.212.252.0/23
- 144.91.108.0/23
- 213.136.78.0/23
- 161.97.90.0/23
- 79.143.188.0/23
- 144.91.122.0/23
- 164.68.122.0/23
- 144.91.66.0/23
- 178.238.230.0/23
- 161.97.66.0/23
- 95.111.226.0/23
- 144.91.118.0/23
- 178.238.234.0/23
- 81.0.220.0/23
- 83.171.248.0/23
- 161.97.82.0/23
- 80.241.210.0/23
- 95.111.254.0/23
- 185.193.66.0/23
- 161.97.92.0/23
- 164.68.106.0/23
- 207.180.212.0/23
- 45.136.16.0/23
- 144.91.106.0/23
- 167.86.104.0/23
- 161.97.98.0/23
- 141.98.154.0/23
- 62.171.154.0/23
- 80.241.218.0/23
- 207.180.240.0/23
- 207.180.218.0/23
- 173.249.14.0/23
- 185.222.240.0/23
- 167.86.82.0/23
- 173.249.26.0/23
- 167.86.68.0/23
- 164.68.116.0/23
- 161.97.124.0/23
- 144.91.116.0/23
- 185.225.232.0/23
- 62.171.164.0/23
- 86.48.6.0/23
- 167.86.90.0/23
- 161.97.122.0/23
- 161.97.188.0/23
- 207.180.216.0/23
- 185.182.8.0/23
- 173.249.12.0/23
- 62.171.152.0/23
- 144.91.80.0/23
- 167.86.98.0/23
- 167.86.108.0/23
- 207.180.228.0/23
- 173.249.24.0/23
- 185.194.218.0/23
- 155.133.26.0/23
- 167.86.120.0/23
- 207.180.238.0/23
- 173.249.34.0/23
- 161.97.120.0/23
- 207.180.214.0/23
- 62.171.174.0/23
- 161.97.88.0/23
- 207.180.202.0/23
- 161.97.102.0/23
- 167.86.106.0/23
- 173.249.10.0/23
- 193.164.132.0/23
- 62.171.132.0/23
- 80.241.212.0/23
- 144.91.86.0/23
- 164.68.114.0/23
- 80.241.208.0/23
- 45.85.146.0/23
- 173.249.48.0/23
- 95.111.252.0/23
- 161.97.64.0/23
- 213.136.88.0/23
- 95.111.236.0/23
- 95.111.248.0/23
- 144.91.114.0/23
- 144.91.112.0/23
- 45.67.216.0/23
- 62.171.150.0/23
- 81.0.246.0/23
- 45.92.30.0/23
- 62.171.148.0/23
- 161.97.86.0/23
- 167.86.124.0/23
- 91.194.90.0/23
- 207.180.232.0/23
- 144.91.96.0/23
- 185.203.216.0/23
- 207.180.200.0/23
- 79.143.190.0/23
- 161.97.118.0/23
- 161.97.106.0/23
- 155.133.22.0/23
- 167.86.116.0/23
- 62.171.136.0/23
- 45.8.150.0/23
- 213.136.94.0/23
- 167.86.110.0/23
- 173.249.6.0/23
- 45.159.230.0/23
- 45.8.148.0/23
- 161.97.70.0/23
- 207.180.224.0/23
- 173.249.20.0/23
- 62.171.160.0/23
- 167.86.74.0/23
- 45.90.120.0/23
- 144.91.88.0/23
- 173.249.16.0/23
- 185.197.194.0/23
- 185.217.126.0/23
- 144.91.72.0/23
- 62.171.166.0/23
- 173.249.28.0/23
- 213.136.82.0/23
- 161.97.74.0/23
- 62.171.168.0/23
- 207.180.222.0/23
- 167.86.94.0/23
- 167.86.114.0/23
- 62.171.156.0/23
- 80.241.222.0/23
- 173.249.4.0/23
- 195.7.6.0/23
- 207.180.244.0/23
- 207.180.210.0/23
- 195.7.4.0/23
- 207.180.230.0/23
- 45.92.8.0/23
- 161.97.96.0/23
- 79.143.176.0/23
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- 173.249.2.0/23
- 62.171.180.0/23
- 167.86.122.0/23
- 192.145.37.0/24
- 185.202.223.0/24
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- 2.58.83.0/24
- 45.141.22.0/24
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- 185.251.27.0/24
- 185.177.116.0/24
- 31.187.74.0/24
- 94.250.202.0/24
- 5.180.150.0/24
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- 178.212.34.0/24
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- 45.14.194.0/24
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- 2.59.156.0/24
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- 5.182.17.0/24
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- 193.200.241.0/24
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- 194.195.87.0/24
- 45.13.59.0/24
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- 185.211.5.0/24
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- 45.84.138.0/24
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- 193.203.15.0/24
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- 185.188.74.0/24
- 185.169.252.0/24
- 176.126.87.0/24
- 185.215.166.0/24
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- 173.212.255.0/24
- 185.187.242.0/24
- 45.140.185.0/24
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- 185.187.170.0/24
- 84.21.171.0/24
- 185.185.82.0/24
- 45.85.250.0/24
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- 5.182.33.0/24
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- 185.209.230.0/24
- 176.57.184.0/24
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- 185.211.6.0/24
- 185.209.223.0/24
- 185.229.119.0/24
- 185.198.27.0/24
- 185.185.80.0/24
- 185.218.126.0/24
- 86.48.5.0/24
- 91.239.43.0/24
- 130.185.118.0/24
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- 194.34.232.0/24
- 185.249.227.0/24
- 194.146.13.0/24
- 193.187.129.0/24
- 194.35.120.0/24
- 185.215.167.0/24
- 91.230.111.0/24
- 185.249.225.0/24
- 84.54.23.0/24
- 173.212.254.0/24
- 2.58.82.0/24
- 80.241.214.0/24
- 185.193.17.0/24
- 79.143.190.0/24
- 185.207.251.0/24
- 45.88.191.0/24
- 185.188.250.0/24
- 185.219.142.0/24
- 45.88.188.0/24
- 45.88.223.0/24
- 185.196.20.0/24
- 185.202.236.0/24
- 2a02:c207::/32
- 2a02:c204::/32
- 2a02:c202::/32
- 2a02:c206::/32
- 2a02:c205::/32
Who it talks to.
| ASN | Operator | Role |
|---|---|---|
| AS3356 | LEVEL3 - Level 3 Parent, LLC | upstream |
| AS1299 | TWELVE99 Arelion Sweden AB | upstream |
| AS13768 | COGECO-PEER1 - Aptum Technologies | upstream |
| AS174 | COGENT-174 - Cogent Communications, LLC | upstream |
| AS15904 | Hallertau-DE Hallertau.Net e.V. | downstream |