$ query “AS211729” --type=asn → 1 result(s)
AS211729 · BAIYUEXIAO-AS
Yiming Zhang
AS211729 is operated by Yiming Zhang and serves as an educational/research stub network, based in the United States since 2025. The system announces 256 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- March 07, 2025
- Last Changed
- July 17, 2026
- Last Seen
- September 05, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 1 / 1
- IPv6 Prefixes (raw / aggregated)
- 13 / 4
- IPv4 Addresses
- 256
- Largest IPv4 Prefix
- /24 (256 addresses)
- Largest IPv6 Prefix
- /43
- Geolocated Countries
- 🇺🇸 United States (256 IPs)
- Prefix Changed
- August 09, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 10 networks exchanging traffic without transit
- Unclassified
- 7 unclassified BGP neighbors
- Degree
- 20 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (1 total)
- 44.30.81.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (13 total)
- 2a0f:1cc5:2b60::/43
- 2a0f:1cc5:2b20::/44
- 2a0f:1cc5:2b40::/44
- 2a14:67c1:b400::/47