165.87.64.0/20 - AT&T Enterprises (AS2687)
CIDR
165.87.64.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 165.87.64.0/20 | AS2687 ATGS-MMD-AS - AT&T Enterprises, LLC | No ROA | Other IRR | 2026-10-11 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 165.87.0.0/16 | AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | - | 2026-10-11 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2687 | Other IRR | MAINT-AS7132 | 2023-11-13 |
Transfer History
Registry transfers of 165.87.64.0/20, blocks inside it, or blocks containing it.
- 165.87.0.0/16M&A ·
- 165.87.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 165.87.0.0/16 | M&A | |||
| 165.87.0.0/16 | M&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/165.87.64.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/165.87.64.0/20" | jq
External Links