AS24348 — CNGI-BJ-IX2-AS-AP CERNET2 IX at Tsinghua University
AS24348 announces 1 IPv4 prefixes covering 16,384 addresses and 29 IPv6 prefixes.
About this network
CNGI-BJ-IX2-AS-AP is the autonomous system for the CERNET2 Internet Exchange Point hosted at Tsinghua University.
What it's used for
- The address space is registered to the China Education and Research Network (CERNET), with netnames including CIS-CERNET, CERNET-CN, and BJR-CERNET.
- The AS announces 16,896 IPv4 addresses across 3 prefixes and 30 IPv6 prefixes, while maintaining only 7 observed neighbours, a ratio consistent with an internal educational network estate rather than a transit provider.
Notable
- Registrants for all announced prefixes align with the announcer, listing CERNET Helpdesk, China Education and Research Network (CERNET), and IRT-CERNET-AP.
- The inventory consists of a large /18 block alongside two /24 blocks, with the majority of the address space concentrated in the 58.206.192.0/18 range.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 58.206.192.0/18
- 2001:250:2::/48
- 2001:250:4::/48
- 2001:250:209::/48
- 2001:250:217::/48
- 2001:250:219::/48
- 2001:250:21a::/47
- 2001:250:23b::/48
- 2001:250:248::/48
- 2001:250:24f::/48
- 2001:250:803::/48
- 2001:250:c006::/48
- 2001:da8:a0::/48
- 2001:da8:20b::/48
- 2001:da8:20e::/48
- 2001:da8:210::/46
- 2001:da8:21a::/48
- 2001:da8:21f::/48
- 2001:da8:222::/48
- 2001:da8:232::/48
- 2001:da8:23d::/48
- 2001:da8:243::/48
- 2001:da8:258::/48
- 2001:da8:266::/48
- 2001:da8:da8::/48
- 2001:da8:aaa9::/48
- 2402:7d80:240::/48
- 2403:3140::/32
- 240c:c035::/32
- 240c:c0a8::/32
Upstream networks
Downstream networks
- AS45576 Tsinghua University
- AS24310 Net-Glyph Data Center
- AS24302 CRIS-CERNET
- AS9405 Test platform Service Center
- AS131490 CERNET Corporation
Adjacent networks
BGP / ASN / CIDR
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IPv4
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED