63.251.121.0/24 - BGP Prefix
IPv4ARINallocated
CIDR
63.251.121.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Chicago (West Loop)
RIR
ARIN
Status
allocated
Allocated
1999-12-02
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS18567 | Other IRR | MAINT-AS1828 | 2023-11-13 |
Transfer History
Registry transfers of 63.251.121.0/24, blocks inside it, or blocks containing it.
- 63.251.120.0/22M&A ·
- 63.251.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 63.251.120.0/22 | M&A | |||
| 63.251.0.0/16 | M&A |
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/63.251.121.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/63.251.121.0/24" | jq
External Links