138.217.223.30
138.217.223.30 is an IPv4 address operated by ASN-TELSTRA - Telstra Limited, AU (AS1221), with approximate network location New York, United States. It belongs to a mobile network with reverse DNS name twi4247119.lnk.telstra.net. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Telstra Limited |
| ASN | AS1221 |
| Network Name | TELSTRAINTERNET22-AU |
| CIDR Block | 138.217.0.0/16 |
| RIR | ARIN |
| Network registration country | AU |
| Routing operator | ASN-TELSTRA - Telstra Limited, AU |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | twi4247119.lnk.telstra.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | twi4247119.lnk.telstra.net |
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 net |
| spf | Unknown / lookup inconclusive twi4247119.lnk.telstra.net |
| dmarc | Unknown / lookup inconclusive _dmarc.twi4247119.lnk.telstra.net |
| dnssec | Unknown / lookup inconclusive 30.223.217.138.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive twi4247119.lnk.telstra.net |
☁️ 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
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS1221 |
| Network Prefix | 138.217.0.0/16 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 24% | 1 | 4 |
| geolocation | 30% | 2 | 4 |
| Overall | 24% | 10 | 18 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (40%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-19 23:09:24 UTC |
| Last Seen | 2026-11-12 00:55:03 UTC |
| Profile Built | 2026-11-13 04:33:09 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 32 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 138.217.223.30
Who owns the IP address 138.217.223.30?
138.217.223.30 is registered to Telstra Limited. The address falls within the 138.217.0.0/16 network block. Registration is held at ARIN.
Where is 138.217.223.30 located?
Geolocation data places 138.217.223.30 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 138.217.223.30 malicious or safe?
138.217.223.30 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 138.217.223.30?
The reverse DNS (PTR) record for 138.217.223.30 is twi4247119.lnk.telstra.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 138.217.223.30 a VPN, proxy, or data center address?
138.217.223.30 is classified as a mobile network and a residential network based on network ownership and behavioural analysis.