21vianet(China) Inc.

Data as of 2026-08-23
BGP inherited
Cluster stats
Netblocks123 · 422,786 IPv4 addresses
IPv6 6 prefixes (largest 2400:32c0::/32)
Cluster ID226907822
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 12 shared RIR contact/maintainer handles
Registry names 4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

9 weekly snapshots · JSON
123 +10 netblocks since 2026-07-05
2026-07-05 peak 123 2026-08-23

IP Ranges (123)

showing 50 of 123 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
58.83.128.0/18 21vianet(China) Inc. BGP ANNOUNCED ● high
59.151.32.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
103.168.98.61/32 21vianet PEERINGDB ASSIGNED ● high
103.216.40.21/32 21vianet PEERINGDB ASSIGNED ● high
103.253.204.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.132.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.178.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.181.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.224.0/21 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.224.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.224.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.226.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.228.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.230.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.231.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
120.132.240.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.0.0/18 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.64.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.236.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.240.0/21 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.240.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.248.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
120.133.252.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.0.0/17 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.0.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.6.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.8.0/21 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.32.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.36.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.64.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.96.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.102.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.112.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.244.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.250.248.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.0.0/17 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.8.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.44.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.48.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.64.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.96.0/19 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.110.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.120.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.128.0/21 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.128.0/23 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.132.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.228.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.236.0/22 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.237.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high
124.251.238.0/24 21vianet(China) Inc. BGP ANNOUNCED ● high

IPv6 ranges (6)

CIDR
2400:32c0::/32
2403:a200::/32
2403:a200:a100::/48
2403:a200:a200::/48
2403:a200:a20f::/48
2404:e780:f872:a:1:0:4414:1/128

Network trust

what's this?
RPKI hygiene: A how networks compare →
97.6% of checked blocks have valid RPKI ROA coverage (120 of 123)
No discrepancies found among checked blocks.

NIC Handles

AC1601-AP AS17428 AS17428 AS9308 AS9802 DS95-AP DS95-AP MAINT-CNCGROUP-SD MAINT-CNNIC-AP MAINT-CNNIC-AP XL442-AP YZ2222-AP