66.161.0.0/17 - AT&T Enterprises (AS7018)
CIDR
66.161.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
Irvine (Irvine Business Complex)
RIR
ARIN
Status
allocated
Allocated
2001-08-22
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.161.0.0/17 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | Valid | ARIN | 2026-10-11 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.161.72.0/24 | AS2386 INS-AS - AT&T Enterprises, LLC | Valid | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 66.161.0.0/17 | AS7018 | /17 | arin |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS7018 | ARIN | MNT-AEL-360 | 2026-08-13 |
Transfer History
Registry transfers of 66.161.0.0/17, blocks inside it, or blocks containing it.
- 66.161.0.0/17M&A ·
- 66.161.0.0/17M&A ·
Related Prefixes
More prefixes of AS7018
All prefixes of AS7018 →Geolocation
Country🇺🇸United StatesUS
RegionCalifornia
CityIrvine (Irvine Business Complex)
Coordinates33.6847, -117.8370 ↗
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/66.161.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.161.0.0/17" | jq
External Links