173.40.65.164
173.40.65.164 is an IPv4 address operated by CHARTER-20115 - Charter Communications LLC, US (AS20115), with approximate network location Rosemead, United States. It belongs to a residential connection with reverse DNS name syn-173-040-065-164.res.spectrum.com. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
Witness AI IP Assessment (AI-generated)
AI-generated assessment. Verify critical details independently.
The target IP address 173.40.65.164 belongs to Charter Communications Inc (AS20115), identified as a Residential Endpoint located in Rosemead, California, United States. Ownership records confirm the address is part of the RRHL netblock (173.40.0.0/14) routed by Charter Communications LLC. Geolocation data provides an approximate network location within the US, consistent with residential infrastructure classification.
DNS hygiene assessment yielded a score of zero due to the absence of SPF, DMARC, CCAA, FCRDNS, and DNSSEC records, though these omissions do not constitute a security failure for a residential endpoint. TLS probing attempts on ports 443 and 8443 returned unreachable statuses, indicating no active TLS services were detected on those endpoints. The risk score is currently zero, yet the lack of service availability and residential nature preclude definitive conclusions regarding malicious or benign activity. Continuous monitoring is recommended to observe future service activation or anomalous behavior.
🏢 Ownership & Registration
| Registered holder | Charter Communications Inc |
| ASN | AS20115 |
| Network Name | RRHL |
| CIDR Block | 173.40.0.0/14 |
| RIR | ARIN |
| Network registration country | United States |
| Routing operator | CHARTER-20115 - Charter Communications LLC, US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | syn-173-040-065-164.res.spectrum.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | syn-173-040-065-164.res.spectrum.com |
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.
Partial coverage: 1 conclusive IP DNS checks.
| caa | Not found at queried name com |
| spf | Not found at queried name syn-173-040-065-164.res.spectrum.com |
| dmarc | Not found at queried name _dmarc.syn-173-040-065-164.res.spectrum.com |
| dnssec | Unknown / lookup inconclusive 164.65.40.173.in-addr.arpa |
| fcrDns | Not found at queried name syn-173-040-065-164.res.spectrum.com |
☁️ Network Classification
| Infrastructure | Residential |
| Service Purpose | Residential Endpoint |
| Network Tier | End-User — Residential ISP endpoint |
🔌 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
| Port | Latest capture attempt |
|---|---|
| 443 | Certificate not captured; current certificate unknown (unreachable) |
| 8443 | Certificate not captured; current certificate unknown (unreachable) |
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS20115 |
| Network Prefix | 173.40.64.0/19 |
| Route mapping | Found |
🎯 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 | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-08 13:34:29 UTC |
| Last Seen | 2026-11-13 19:05:37 UTC |
| Profile Built | 2026-11-13 19:07:44 UTC |
| Data Freshness | Live |
| Signal Types | 16 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 173.40.65.164
Who owns the IP address 173.40.65.164?
173.40.65.164 is registered to Charter Communications Inc. The address falls within the 173.40.0.0/14 network block. Registration is held at ARIN.
Where is 173.40.65.164 located?
Geolocation data places 173.40.65.164 in Rosemead, CA, United States. The local time zone is America/Los_Angeles. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 173.40.65.164 malicious or safe?
173.40.65.164 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 173.40.65.164?
The reverse DNS (PTR) record for 173.40.65.164 is syn-173-040-065-164.res.spectrum.com. This hostname is not forward-confirmed, so it should be treated as a weak signal.
Is 173.40.65.164 a VPN, proxy, or data center address?
173.40.65.164 is classified as a residential network based on network ownership and behavioural analysis.