133.106.78.76 is an IPv4 address announced by AS138384, with approximate network location Japan. Its reverse DNS name is 133-106-78-76.mvno.rakuten.jp. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Japan Network Information Center |
| ASN | AS138384 |
| Network Name | RMI |
| CIDR Block | 133.106.72.0/21 |
| RIR | APNIC |
| Network registration country | JP |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 133-106-78-76.mvno.rakuten.jp |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 133-106-78-76.mvno.rakuten.jp |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP.
DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
No specific classification
🔍 11 signal types · 11 observations collected
This report is generated from 11+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
❓ Frequently Asked Questions About 133.106.78.76
Who owns the IP address 133.106.78.76?
133.106.78.76 is registered to Japan Network Information Center. The address falls within the 133.106.72.0/21 network block. Registration is held at APNIC.
Where is 133.106.78.76 located?
Geolocation data places 133.106.78.76 in Japan. The local time zone is Asia/Tokyo. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 133.106.78.76 malicious or safe?
133.106.78.76 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 133.106.78.76?
The reverse DNS (PTR) record for 133.106.78.76 is 133-106-78-76.mvno.rakuten.jp. This hostname is not forward-confirmed, so it should be treated as a weak signal.
