$ query “AS205100” --type=asn → 1 result(s)
AS205100 — F3NETZE
F3 Netze e.V.
AS205100 is an enterprise stub network operated by F3 Netze e.V., registered in Germany since 2017. The network announces 256 IPv4 addresses. ⚠️ This network has a high concentration of IPs flagged for malicious activity. Supports IPv6.
- Dark Side — Very high concentration of IPs on threat intelligence feeds (>=2%)
Basic Information
- Country
- 🇩🇪 Germany
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- November 08, 2017
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 6 / 6
- IPv4 Addresses
- 256
- Largest IPv4 Prefix
- /24 (256 addresses)
- Largest IPv6 Prefix
- /40
- Geolocated Countries
- 🇩🇪 DE (1 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Dirty — 16 flagged IPs out of 256 total (6.25%)
- Tor Exit Nodes
- 16 known Tor exit nodes in this network
Connectivity Summary
- Upstream Providers
- 1 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 4 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #19 807
Upstream Providers (1)
- AS47147 — AS-ANX
Prefix Lists
IPv4 Prefixes (1 total)
- 185.220.100.0/24 (256 addresses)
IPv6 Prefixes (6 total)
- 2a0b:f4c0::/40
- 2a0b:f4c0:100::/48
- 2a0b:f4c0:16c::/48
- 2a0b:f4c0:1a4::/48
- 2a0b:f4c0:1b4::/48
- 2a0b:f4c0:400::/48