63.251.32.0/19 - BGP Prefix
IPv4ARINallocatedNo ROA
CIDR
63.251.32.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇺🇸 United States
City
Chesterfield
RIR
ARIN
Status
allocated
Allocated
1999-12-02
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
5 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 63.251.32.0/20 | AS12179 INTERNAP-2BLK - Unitas Global | No ROA | - | 2026-10-12 |
| 63.251.35.0/24 | AS393954 CFN-SERVICES - CFN Services Inc. | No ROA | - | 2026-10-12 |
| 63.251.42.0/24 | AS63018 DEDICATED - Dedicated.com | No ROA | - | 2026-10-12 |
| 63.251.48.0/20 | AS14743 INTERNAP-BLOCK-4 - Unitas Global | No ROA | - | 2026-10-12 |
| 63.251.56.0/24 | AS25985 SYMBIOSYSTEMS - SymbioSystems LLC | No ROA | - | 2026-10-12 |
Transfer History
Registry transfers of 63.251.32.0/19, blocks inside it, or blocks containing it.
- 63.251.32.0/19M&A ·
- 63.251.32.0/19M&A ·
- 63.251.0.0/16M&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/63.251.32.0/19Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/63.251.32.0/19" | jq
External Links