203.163.64.0/18
🇦🇺CIDR
203.163.64.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇦🇺 Australia
City
Sydney
RIR
APNIC
Status
allocated
Allocated
11/17/1999
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.163.64.0/18 | AS2687ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | RADB | 6/1/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.163.64.0/22 | AS2687ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 203.163.68.0/24 | AS2687ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 203.163.89.0/24 | AS2687ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 203.163.90.0/24 | AS2687ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | — | 6/1/2026 |
| 203.163.94.0/24 | AS134534ATT-NBE-SG - ATT NBE Equinix Singapore | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2687 | RADB | MAINT-AS4637 | 11/13/2023 |
More Specific Prefixes
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.163.64.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.163.64.0/18" | jq
External Links