166.100.0.0/16 - AT&T Enterprises (AS2687)
CIDR
166.100.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Nerima
RIR
APNIC
Status
allocated
Allocated
1993-11-30
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.100.0.0/16 | AS2687 ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | Other IRR | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2687 | Other IRR | MAINT-AS7132 | 2023-11-13 |
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 APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/166.100.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/166.100.0.0/16" | jq
External Links