173.36.127.52
🏢 Ownership & Registration
| Organization | CISCO SYSTEMS, INC. |
| ASN | AS109 |
| Network Name | CISCO-GEN-8 |
| CIDR Block | 173.36.0.0/14 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ip-173-36-127-52.cisco.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ip-173-36-127-52.cisco.com |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | z-a.ctim.cisco.comactivate-test.cisco.com |
| Valid From | 2026-09-03T00:01:07+00:00 |
| Valid Until | 2027-03-21T00:00:07+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha256RSA |
| Validity Period | 198 days |
🛡️ Public Network Snapshot
| Origin ASN | AS109 |
| Network Prefix | 173.36.0.0/17 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-28 17:51:25 UTC |
| Last Seen | 2026-09-28 17:51:25 UTC |
| Profile Built | 2026-09-28 18:02:54 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 173.36.127.52
Who owns the IP address 173.36.127.52?
173.36.127.52 is registered to CISCO SYSTEMS, INC.. The address falls within the 173.36.0.0/14 network block. Registration is held at ARIN.
Where is 173.36.127.52 located?
Geolocation data places 173.36.127.52 in Allen, TX, United States. The local time zone is America/Chicago. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 173.36.127.52 malicious or safe?
173.36.127.52 currently carries a high risk assessment, meaning indicators associated with malicious or abusive activity have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 173.36.127.52?
The reverse DNS (PTR) record for 173.36.127.52 is ip-173-36-127-52.cisco.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 173.36.127.52?
Responsive ports observed on 173.36.127.52 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.