$ query “AS51031” --type=asn → 1 result(s)
AS51031 · STARNETWORK
w1n ltd
AS51031 is run by w1n ltd and is an enterprise stub network, based in the United Kingdom since 2022. The system announces 1 280 IPv4 addresses. The bulk of its IP address space is in China, with additional presence in Hong Kong SAR China. This AS has recently updated its prefix announcements. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇬🇧 United Kingdom
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- August 01, 2022
- Last Changed
- April 01, 2026
- Last Seen
- May 20, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 6 / 4
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 1 280
- Largest IPv4 Prefix
- /23 (512 addresses)
- Geolocated Countries
- 🇨🇳 China (1 024 IPs), 🇭🇰 Hong Kong SAR China (768 IPs)
- Prefix Changed
- May 18, 2026
Reputation
- Reputation
- Good — 1 flagged IPs out of 1 280 total (0.08%)
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Unclassified
- 2 unclassified BGP neighbors
- Degree
- 3 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS4229 — ZEN-NET
Prefix Lists
IPv4 Prefixes (6 total)
- 216.235.240.0/23 (512 addresses (/23 prefix))
- 31.56.66.0/24 (256 addresses (/24 prefix))
- 31.57.248.0/24 (256 addresses (/24 prefix))
- 161.248.137.0/24 (256 addresses (/24 prefix))