173.40.231.0
173.40.231.0 is an IPv4 address operated by CHARTER-20115 - Charter Communications LLC, US (AS20115), with approximate network location New York, United States. It belongs to a residential connection with reverse DNS name syn-173-040-231-000.res.spectrum.com. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Charter Communications Inc |
| ASN | AS20115 |
| Network Name | RRHL |
| CIDR Block | 173.40.0.0/14 |
| RIR | ARIN |
| Network registration country | — |
| Registrant address country | United States |
| Routing operator | CHARTER-20115 - Charter Communications LLC, US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | syn-173-040-231-000.res.spectrum.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | syn-173-040-231-000.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.
Not assessed: 0 conclusive IP DNS checks.
| caa | Not found at queried name com |
| spf | Unknown / lookup inconclusive syn-173-040-231-000.res.spectrum.com |
| dmarc | Unknown / lookup inconclusive _dmarc.syn-173-040-231-000.res.spectrum.com |
| dnssec | Unknown / lookup inconclusive 0.231.40.173.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive syn-173-040-231-000.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 | 173.40.224.0/20 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 28% | 2 | 3 |
| routing | 8% | 1 | 1 |
| services | 28% | 2 | 3 |
| ownership | 25% | 2 | 4 |
| reputation | 0% | 0 | 0 |
| geolocation | 23% | 2 | 2 |
| Overall | 19% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-09 00:51:44 UTC |
| Last Seen | 2026-11-13 10:19:29 UTC |
| Profile Built | 2026-11-13 10:23:43 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 31 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 173.40.231.0
Who owns the IP address 173.40.231.0?
173.40.231.0 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 173.40.231.0 located?
Geolocation data places 173.40.231.0 in New York, US-NY, United States. The local time zone is America/New_York. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 173.40.231.0 malicious or safe?
173.40.231.0 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 173.40.231.0?
The reverse DNS (PTR) record for 173.40.231.0 is syn-173-040-231-000.res.spectrum.com. This hostname is not forward-confirmed, so it should be treated as a weak signal.
Is 173.40.231.0 a VPN, proxy, or data center address?
173.40.231.0 is classified as a residential network based on network ownership and behavioural analysis.