$ query “AS38255” --type=asn → 1 result(s)
AS38255 · FITI-AS-AP
China Education and Research Network (CERNET)
AS38255 is owned by China Education and Research Network (CERNET) and is an educational/research access provider, based in China. The system announces 2 048 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in China.
- #15 by Degree — Top 100 by unique BGP neighbor count
Basic Information
- Country
- 🇨🇳 China
- Category
- Education/Research
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- August 01, 2026
- Last Seen
- August 14, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 1
- IPv6 Prefixes (raw / aggregated)
- 3 / 3
- IPv4 Addresses
- 2 048
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇨🇳 China (2 048 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 1 flagged IPs out of 2 048 total (0.05%)
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Downstream Customers
- 2 downstreams buying transit
- Unclassified
- 4 098 unclassified BGP neighbors
- Degree
- 4 102 unique BGP neighbors
- Reach
- 2 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (2 total)
- 118.229.40.0/21 (2 048 addresses (/21 prefix))
IPv6 Prefixes (3 total)
- 2001:255::/32
- 2a0e:b107:740::/44
- 2a0e:aa06:49f::/48