72.5.203.0/24 - CenturyLink Communications (AS3561)
CIDR
72.5.203.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Chicago
RIR
ARIN
Status
allocated
Allocated
2024-03-11
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 72.5.203.0/24 | AS3561 CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC | No ROA | - | 2026-10-11 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 72.5.200.0/21 | AS19024 INTERNAP-BLK5 - Unitas Global | No ROA | - | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS36478 | Other IRR | MAINT-AS1828 | 2023-11-13 |
Transfer History
Registry transfers of 72.5.203.0/24, blocks inside it, or blocks containing it.
- 72.5.203.0/24Transfer ·
- 72.5.192.0/18M&A ·
- 72.5.0.0/16M&A ·
Related Prefixes
More prefixes of AS3561
All prefixes of AS3561 →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 ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/72.5.203.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/72.5.203.0/24" | jq
External Links