209.225.0.0/18 - CenturyLink Communications (AS3561)
CIDR
209.225.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Baltimore (Locust Point)
RIR
ARIN
Status
allocated
Allocated
2000-05-24
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.225.0.0/18 | AS3561 CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC | No ROA | - | 2026-10-12 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.225.20.0/23 | AS3561 CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC | No ROA | - | 2026-10-12 |
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 ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/209.225.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.225.0.0/18" | jq
External Links