$ query “AS205365” --type=asn → 1 result(s)
AS205365 — FETZER
Matthias Fetzer
AS205365 is an educational stub network run by Matthias Fetzer, established in Germany in 2017. The network announces 512 IPv4 addresses. Supports IPv6.
Basic Information
- Country
- 🇩🇪 Germany
- Category
- Education/Research
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 14, 2017
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 1
- IPv6 Prefixes (raw / aggregated)
- 5 / 2
- IPv4 Addresses
- 512
- Largest IPv4 Prefix
- /23 (512 addresses)
- Largest IPv6 Prefix
- /46
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 512 total (0.00%)
Connectivity Summary
- Upstream Providers
- 3 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 3 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #26 752
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (2 total)
- 195.191.80.0/23 (512 addresses)
IPv6 Prefixes (5 total)
- 2a00:1908:fffc::/46
- 2a00:1908:fffa::/48