203.57.50.0/23 - MAMMOTHMEDIA AP Mammoth Media Pty (AS133159)
CIDR
203.57.50.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇦🇺 Australia
City
Brisbane
RIR
APNIC
Status
assigned
Allocated
1997-01-31
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.57.50.0/23 | AS133159 MAMMOTHMEDIA-AS-AP Mammoth Media Pty Ltd | Valid | APNICOther IRR | 2026-10-11 |
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.57.50.0/24 | AS133159 MAMMOTHMEDIA-AS-AP Mammoth Media Pty Ltd | Valid | - | 2026-10-11 |
| 203.57.51.0/24 | AS133159 MAMMOTHMEDIA-AS-AP Mammoth Media Pty Ltd | Valid | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 203.57.50.0/23 | AS133159 | /24 | apnic |
Transfer History
Registry transfers of 203.57.50.0/23, blocks inside it, or blocks containing it.
- 203.57.51.0/24Transfer ·
- 203.57.50.0/24Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 203.57.51.0/24 | Transfer | |||
| 203.57.50.0/24 | Transfer |
Related Prefixes
More prefixes of AS133159
All prefixes of AS133159 →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/203.57.50.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.57.50.0/23" | jq
External Links