66.54.0.0/18 - BGP Prefix
IPv4ARINallocated RPKI Valid
CIDR
66.54.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Ashburn
RIR
ARIN
Status
allocated
Allocated
2000-12-13
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
9 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.54.0.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.4.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.16.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.20.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.28.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.36.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.48.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.56.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
| 66.54.60.0/22 | AS3360 DXC-AS3360 - DXC US Latin America Corporation | Valid | - | 2026-10-11 |
Transfer History
Registry transfers of 66.54.0.0/18, blocks inside it, or blocks containing it.
- 66.54.0.0/18M&A ·
- 66.54.0.0/18M&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/66.54.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.54.0.0/18" | jq
External Links