219.238.236.0/22 - Beijing Dian Xin Tong Network Technologies (AS17964)
CIDR
219.238.236.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇨🇳 China
City
Xiabancheng (South Building)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 219.238.236.0/22 | AS17964 DXTNET - Beijing Dian-Xin-Tong Network Technologies Co., Ltd. | Valid | - | 2026-10-11 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 219.238.192.0/18 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | No ROA | - | 2026-10-11 |
| 219.238.232.0/21 | AS4847 CNIX-AP - China Networks Inter-Exchange | Valid | - | 2026-10-11 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 219.238.236.0/25 | 🇨🇳CN | assigned | |
| 219.238.236.128/25 | 🇨🇳CN | assigned | |
| 219.238.237.0/25 | 🇨🇳CN | assigned | |
| 219.238.237.128/26 | 🇨🇳CN | assigned | |
| 219.238.237.192/26 | 🇨🇳CN | assigned | |
| 219.238.238.0/24 | 🇨🇳CN | assigned | |
| 219.238.239.0/24 | 🇨🇳CN | assigned |
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/219.238.236.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/219.238.236.0/22" | jq
External Links