209.73.183.27
209.73.183.27 is an IPv4 address operated by YAHOO-BF1 - Yahoo Holdings Inc., US (AS26101), with approximate network location New York, United States. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Yahoo Holdings Inc. |
| ASN | AS26101 |
| Network Name | INTERNET-BLK-1-AV |
| CIDR Block | 209.73.160.0/19 |
| RIR | ARIN |
| Network registration country | United States |
| Routing operator | YAHOO-BF1 - Yahoo Holdings Inc., US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
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 | Present / verified yahoo.com |
| spf | Not checked |
| dmarc | Not checked |
| dnssec | Unknown / lookup inconclusive 27.183.73.209.in-addr.arpa |
| fcrDns | Not checked |
☁️ 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 | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| Port | Probe target | Certificate finding |
|---|---|---|
| (IP-targeted) | CN=*.ec.yimg.com, O=Yahoo Holdings Inc., L=New York, S=New York, C=US Historical certificate; current certificate unknown |
| SANs | *.ec.yimg.com*.yimg.comcdn.flurry.comyui-s.yahooapis.comcdn.yahooapis.comecp.yusercontent.comcdn.yahoofinance.comwidgets.yahoofinance.comyahoofinance.comwww.yahoofinance.com |
| Valid From | 2026-09-30T00:00:00+00:00 |
| Valid Until | 2026-12-23T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 84 days |
🛡️ Public Network Snapshot
| Origin ASN | AS26101 |
| Network Prefix | 209.73.180.0/22 |
| 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 | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Recent
| First Seen | 2026-11-12 04:51:33 UTC |
| Last Seen | 2026-11-12 04:51:33 UTC |
| Profile Built | 2026-11-13 08:18:54 UTC |
| Data Freshness | Recent |
| Signal Types | 22 |
| Total Observations | 22 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 209.73.183.27
Who owns the IP address 209.73.183.27?
209.73.183.27 is registered to Yahoo Holdings Inc.. The address falls within the 209.73.160.0/19 network block. Registration is held at ARIN.
Where is 209.73.183.27 located?
Geolocation data places 209.73.183.27 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 209.73.183.27 malicious or safe?
209.73.183.27 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 ports are open on 209.73.183.27?
Responsive ports observed on 209.73.183.27 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.