199.83.128.19
199.83.128.19 is an IPv4 address operated by INCAPSULA - Incapsula Inc, US (AS19551), with approximate network location New York, United States. Its reverse DNS name is 199.83.128.19.ip.incapdns.net. As of November 14, 2026, IPDebrief rates it Low Risk (30/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Incapsula Inc |
| ASN | AS19551 |
| Network Name | THALES-IMPERVA-NA4-AGG-199-83-128 |
| CIDR Block | 199.83.128.0/21 |
| RIR | ARIN |
| Network registration country | United States |
| Routing operator | INCAPSULA - Incapsula Inc, US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 199.83.128.19.ip.incapdns.net |
| 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 | Not checked |
| spf | Not checked |
| dmarc | Not checked |
| dnssec | Not checked |
| 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 | — |
| 8080 | http-alt | tcp | — |
| 8443 | https-alt | tcp | — |
| 3389 | rdp | tcp | — |
| Closed Ports | 22, 25 (5 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| Port | Probe target | Certificate finding |
|---|---|---|
| (IP-targeted) | CN=imperva.com Historical certificate; current certificate unknown |
| SANs | imperva.com |
| Valid From | 2026-09-07T08:45:15+00:00 |
| Valid Until | 2026-12-06T08:45:15+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 90 days |
🛡️ Public Network Snapshot
| Origin ASN | AS19551 |
| Network Prefix | 199.83.128.0/24 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Not detected |
🎯 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 | 50% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 25% | 6 | 7 |
| Data Coherence | Consistent (100%) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Aging
| First Seen | 2026-10-17 15:03:16 UTC |
| Last Seen | 2026-10-17 15:03:16 UTC |
| Profile Built | 2026-11-14 04:03:45 UTC |
| Data Freshness | Aging |
| Signal Types | 21 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 199.83.128.19
Who owns the IP address 199.83.128.19?
199.83.128.19 is registered to Incapsula Inc. The address falls within the 199.83.128.0/21 network block. Registration is held at ARIN.
Where is 199.83.128.19 located?
Geolocation data places 199.83.128.19 in New York. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 199.83.128.19 malicious or safe?
199.83.128.19 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 199.83.128.19?
The reverse DNS (PTR) record for 199.83.128.19 is 199.83.128.19.ip.incapdns.net. This hostname is not forward-confirmed, so it should be treated as a weak signal.
What ports are open on 199.83.128.19?
Responsive ports observed on 199.83.128.19 include 80, 443, 8080, 8443, 3389. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.