66.240.0.0/18 - Comcast Cable Communications (AS7922)
CIDR
66.240.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Cockeysville (Hunt Valley)
RIR
ARIN
Status
allocated
Allocated
2002-02-21
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.240.0.0/18 | AS7922 COMCAST-7922 - Comcast Cable Communications, LLC | Valid | Other IRR | 2026-10-11 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.240.58.0/24 | AS33491 COMCAST-33491 - Comcast Cable Communications, LLC | Valid | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 66.240.0.0/18 | AS7922 | /18 | arin |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS7922 | Other IRR | MAINT-AS7922 | 2023-11-13 |
Transfer History
Registry transfers of 66.240.0.0/18, blocks inside it, or blocks containing it.
- 66.240.0.0/18M&A ·
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/66.240.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.240.0.0/18" | jq
External Links