208.91.57.0/24 - Optimum (AS19108)
CIDR
208.91.57.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Sterling
RIR
ARIN
Status
allocated
Allocated
2012-10-02
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 208.91.57.0/24 | AS19108 SUDDENLINK-COMMUNICATIONS - Optimum | Valid | - | 2026-10-14 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 208.91.57.0/24 | AS19108 | /24 | arin |
Related Prefixes
More prefixes of AS19108
All prefixes of AS19108 →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/208.91.57.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/208.91.57.0/24" | jq
External Links