143.105.123.172
143.105.123.172 is an IPv4 address announced by AS14593, with approximate network location Cleveland, United States. Its reverse DNS name is customer.gtmygtm1.isp.starlink.com. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | SpaceX Services, Inc. |
| ASN | AS14593 |
| Network Name | SS-2296 |
| CIDR Block | 143.105.0.0/16 |
| RIR | ARIN |
| Network registration country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | customer.gtmygtm1.isp.starlink.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | customer.gtmygtm1.isp.starlink.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.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS14593 |
| Network Prefix | 143.105.122.0/23 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 3 |
| routing | 17% | 1 | 1 |
| services | 24% | 2 | 2 |
| ownership | 35% | 2 | 3 |
| reputation | 17% | 1 | 2 |
| geolocation | 40% | 2 | 3 |
| Overall | 28% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Aging
| First Seen | 2026-10-08 14:45:05 UTC |
| Last Seen | 2026-11-03 13:15:06 UTC |
| Profile Built | 2026-11-12 16:49:13 UTC |
| Data Freshness | Aging |
| Signal Types | 20 |
| Total Observations | 26 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 143.105.123.172
Who owns the IP address 143.105.123.172?
143.105.123.172 is registered to SpaceX Services, Inc.. The address falls within the 143.105.0.0/16 network block. Registration is held at ARIN.
Where is 143.105.123.172 located?
Geolocation data places 143.105.123.172 in Cleveland, OH, 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 143.105.123.172 malicious or safe?
143.105.123.172 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 143.105.123.172?
The reverse DNS (PTR) record for 143.105.123.172 is customer.gtmygtm1.isp.starlink.com. This hostname is not forward-confirmed, so it should be treated as a weak signal.