204.75.250.0/23 - CENIC (AS2152)
CIDR
204.75.250.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇺🇸 United States
City
Sunnyvale
RIR
ARIN
Status
allocated
Allocated
1994-09-12
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.75.250.0/23 | AS2152 CENIC-2152 - CENIC | No ROA | Other IRR | 2026-10-12 |
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.75.250.0/24 | AS2152 CENIC-2152 - CENIC | No ROA | - | 2026-10-12 |
| 204.75.251.0/24 | AS2152 CENIC-2152 - CENIC | No ROA | - | 2026-10-12 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2152 | Other IRR | MAINT-AS2150 | 2023-11-13 |
Origin ASN
AS2152
CENIC-2152 - CENIC
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/204.75.250.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.75.250.0/23" | jq
External Links