SINA Corporation

Sina
GLEIF verified
LEI
549300ICDICMKPZEUY61
Registered name
SINA Corporation
Jurisdiction
KY
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks11 · 67,142 IPv4 addresses
Registered in China (9) · Italy (1)
All fragments 60 blocks across 18 clusters
Cluster ID213803882
RegistryAPNIC
Owner jurisdictionKY
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 549300ICDICMKPZEUY61
Shared handles clustered on 13 shared RIR contact/maintainer handles
Registry names 4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

6 weekly snapshots · JSON
11 0 netblocks since 2026-07-05
2026-07-05 peak 11 2026-07-26

IP Ranges (11)

⬇ export CSV
CIDR Org name Registry Status Confidence
36.51.0.0/16 SINA APNIC ALLOCATED PORTABLE ● low
122.96.55.32 – 122.96.55.255 sina APNIC ASSIGNED NON-PORTABLE ● low
185.47.228.224/27 SINA-SPA RIPE ASSIGNED PA ● low
219.141.220.0/24 Sina APNIC ASSIGNED NON-PORTABLE ● low
219.142.48.0/26 Sina APNIC ASSIGNED NON-PORTABLE ● low
219.142.66.80/28 Sina APNIC ASSIGNED NON-PORTABLE ● low
219.142.78.0/24 Sina APNIC ASSIGNED NON-PORTABLE ● low
219.142.118.0/24 Sina APNIC ASSIGNED NON-PORTABLE ● low
219.142.122.0/24 Sina APNIC ASSIGNED NON-PORTABLE ● low
219.143.221.0/24 Sina APNIC ASSIGNED NON-PORTABLE ● low
2400:89c0::/32 SINA APNIC ALLOCATED PORTABLE ● low

Domains hosted in this network

what's this?
sina.com.cn weibo.cn weibo.com sina.cn sinajs.cn

Network trust

what's this?
RPKI hygiene: C how networks compare →
72.7% of checked blocks have valid RPKI ROA coverage (8 of 11)
Possible discrepancies (5)

These blocks are registered to Sina but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

219.143.221.0/24 /24 authorized for AS4847 — China Networks Inter-Exchange
219.141.220.0/24 /24 authorized for AS23724 — IDC, China Telecommunications Corporation
219.142.122.0/24 /24 authorized for AS4847 — China Networks Inter-Exchange
219.142.78.0/24 /24 authorized for AS23724 — IDC, China Telecommunications Corporation
219.142.118.0/24 /24 authorized for AS23724 — IDC, China Telecommunications Corporation

NIC Handles

AC1601-AP DUMY-RIPE DUMY-RIPE HC55-AP HC55-AP LL58-AP LL58-AP MAINT-CHINANET-BJ MAINT-CNCGROUP-JS MAINT-CNNIC-AP MNT-CDLAN ZM643-AP +1 more