AS15817
Mittwald CM Service GmbH & Co. KG
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.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 2 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, DE-CIX Hamburg: DE-CIX Hamburg Peering LAN
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS15817 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 31.220.120.0/21 | 15,699 | 2026-07-23 21:56:44 |
| 185.227.115.0/24 | 15,693 | 2026-07-23 21:56:44 |
| 185.166.20.0/22 | 15,688 | 2026-07-23 21:56:44 |
| 185.233.52.0/22 | 15,649 | 2026-07-23 21:56:44 |
| 185.227.112.0/24 | 15,611 | 2026-07-23 21:56:44 |
| 188.94.248.0/21 | 15,608 | 2026-07-23 21:56:44 |
| 185.15.192.0/22 | 15,580 | 2026-07-23 21:56:44 |
| 185.237.64.0/22 | 15,578 | 2026-07-23 21:56:44 |
| 37.202.0.0/21 | 15,550 | 2026-07-23 21:56:44 |
| 176.52.240.0/21 | 15,449 | 2026-07-23 21:56:44 |
| 46.30.56.0/21 | 15,425 | 2026-07-23 21:56:44 |
| 185.215.156.0/22 | 15,352 | 2026-07-23 21:56:44 |
| 185.224.152.0/22 | 14,042 | 2026-07-23 21:56:44 |
| 185.221.104.0/22 | 13,929 | 2026-07-23 21:56:44 |
| 178.16.56.0/21 | 12,225 | 2026-07-23 21:56:44 |
| 193.53.246.0/23 | 10,899 | 2026-07-23 21:56:44 |
| 185.181.132.0/22 | 10,532 | 2026-07-23 21:56:44 |
| 193.53.250.0/23 | 10,198 | 2026-07-23 21:56:44 |
| 185.243.132.0/22 | 9,961 | 2026-07-23 21:56:44 |
| 185.247.151.0/24 | 9,890 | 2026-07-23 21:56:44 |
| 45.144.184.0/22 | 5,877 | 2026-07-23 21:56:10 |
| 156.67.232.0/21 | 5,391 | 2026-07-23 21:56:44 |
| 157.97.32.0/20 | 5,186 | 2026-07-23 21:56:44 |
| 153.92.192.0/20 | 5,159 | 2026-07-23 21:56:44 |
| 185.247.148.0/24 | 4,738 | 2026-07-23 21:56:07 |
| 185.247.149.0/24 | 3,533 | 2026-07-13 06:46:16 |
| 176.52.245.36/32 | 16 | 2026-06-09 11:50:40 |
Frequently Asked Questions
What is AS15817?
AS15817 is an Autonomous System Number assigned to Mittwald CM Service GmbH & Co. KG. 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 AS15817 announce?
AS15817 announces 35.1K IPv4 addresses distributed across 26 routed CIDR prefixes. The network is registered in Germany.
Who operates AS15817?
AS15817 is operated by Mittwald CM Service GmbH & Co. KG. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.
What country is AS15817 registered in?
AS15817 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
