203.205.0.0/21 - MEGACORE VN Megacore Technology Company Limited (AS140810)
CIDR
203.205.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇻🇳 Vietnam
City
Hanoi
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.205.0.0/21 | AS140810 MEGACORE-AS-VN Megacore Technology Company Limited | Invalid | - | 2026-10-11 |
More-Specific Announcements
8 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.205.0.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.1.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.2.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.3.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.4.0/24 | AS38732 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.5.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.6.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
| 203.205.7.0/24 | AS45903 CMCTELECOM-VN CMC Telecom Infrastructure Company | Valid | - | 2026-10-11 |
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/203.205.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.205.0.0/21" | jq
External Links