87.123.243.176
87.123.243.176 is an IPv4 address operated by 1&1 Versatel GmbH (AS8881), geolocated to Herrenberg, Germany. Its reverse DNS name is i577BF3B0.versanet.de. As of October 10, 2026, IPDebrief rates it Moderate Risk (40/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Organization | 1&1 Versatel GmbH |
| ASN | AS8881 |
| Network Name | VT-Customer |
| CIDR Block | 87.123.216.0/21 |
| RIR | RIPE |
| Country | DE |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | i577BF3B0.versanet.de |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | i577BF3B0.versanet.de |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | 2/2 domains |
| DMARC | 0/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS8881 |
| Network Prefix | 87.123.240.0/21 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 23% | 2 | 3 |
| routing | 17% | 2 | 3 |
| services | 12% | 2 | 2 |
| ownership | 19% | 3 | 4 |
| reputation | 18% | 1 | 3 |
| geolocation | 17% | 2 | 3 |
| Overall | 18% | 12 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-12 08:52:19 UTC |
| Last Seen | 2026-10-10 23:38:22 UTC |
| Profile Built | 2026-10-10 23:40:30 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 28 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 87.123.243.176
Who owns the IP address 87.123.243.176?
87.123.243.176 is registered to 1&1 Versatel GmbH. The address falls within the 87.123.216.0/21 network block. Registration is held at RIPE.
Where is 87.123.243.176 located?
Geolocation data places 87.123.243.176 in Herrenberg, Baden-Wurttemberg, Germany. The local time zone is Europe/Berlin. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 87.123.243.176 malicious or safe?
87.123.243.176 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 87.123.243.176?
The reverse DNS (PTR) record for 87.123.243.176 is i577BF3B0.versanet.de. This hostname is forward-confirmed, meaning it resolves back to the same address.