211.144.196.0/22 - China Unicom Shanghai Network (AS17621)
CIDR
211.144.196.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇨🇳 China
City
Huamu (Pudong Xinqu)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 211.144.196.0/22 | AS17621 CNCGROUP-SH - China Unicom Shanghai network | Valid | - | 2026-10-12 |
More-Specific Announcements
5 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 211.144.196.0/23 | AS17621 CNCGROUP-SH - China Unicom Shanghai network | Valid | - | 2026-10-12 |
| 211.144.196.0/24 | AS17621 CNCGROUP-SH - China Unicom Shanghai network | Valid | - | 2026-10-12 |
| 211.144.197.0/24 | AS17621 CNCGROUP-SH - China Unicom Shanghai network | Valid | - | 2026-10-12 |
| 211.144.198.0/23 | AS17621 CNCGROUP-SH - China Unicom Shanghai network | Valid | - | 2026-10-12 |
| 211.144.199.0/24 | AS17621 CNCGROUP-SH - China Unicom Shanghai network | Valid | - | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 211.144.192.0/20 | AS17621 | /24 | apnic |
Related Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/211.144.196.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/211.144.196.0/22" | jq
External Links