76.253.0.0/16 - AT&T Enterprises (AS7018)
CIDR
76.253.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Sunnyvale
RIR
ARIN
Status
allocated
Allocated
2006-09-15
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 76.253.0.0/16 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
More-Specific Announcements
4 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 76.253.193.0/24 | AS7287 PBI-NET-BLK2 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
| 76.253.194.0/23 | AS7287 PBI-NET-BLK2 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
| 76.253.196.0/22 | AS7287 PBI-NET-BLK2 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
| 76.253.200.0/21 | AS7287 PBI-NET-BLK2 - AT&T Enterprises, LLC | No ROA | - | 2026-10-12 |
Transfer History
Registry transfers of 76.253.0.0/16, blocks inside it, or blocks containing it.
- 76.253.0.0/16M&A ·
- 76.253.0.0/16M&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/76.253.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/76.253.0.0/16" | jq
External Links