171.5.223.121
171.5.223.121 is an IPv4 address announced by AS45758, with approximate network location Nakhon Pathom, Thailand. It belongs to a mobile network with reverse DNS name mx-ll-171.5.223-121.dynamic.3bb.co.th. As of November 9, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | ADVANCED WIRELESS NETWORK COMPANY LIMITED administ |
| ASN | AS45758 |
| Network Name | AWN-CO-LTD-TH |
| CIDR Block | 171.4.0.0/15 |
| RIR | APNIC |
| Network registration country | TH |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | mx-ll-171.5.223-121.dynamic.3bb.co.th |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | mx-ll-171.5.223-121.dynamic.3bb.co.th |
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 | Mobile |
| 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 | AS45758 |
| Network Prefix | 171.5.0.0/16 |
| Route mapping | Found |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-07 23:43:08 UTC |
| Last Seen | 2026-11-09 19:39:48 UTC |
| Profile Built | 2026-11-09 20:00:34 UTC |
| Data Freshness | Live |
| Signal Types | 15 |
| Total Observations | 16 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 171.5.223.121
Who owns the IP address 171.5.223.121?
171.5.223.121 is registered to ADVANCED WIRELESS NETWORK COMPANY LIMITED administ. The address falls within the 171.4.0.0/15 network block. Registration is held at APNIC.
Where is 171.5.223.121 located?
Geolocation data places 171.5.223.121 in Nakhon Pathom, Nakhon Pathom, Thailand. The local time zone is Asia/Bangkok. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 171.5.223.121 malicious or safe?
171.5.223.121 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 171.5.223.121?
The reverse DNS (PTR) record for 171.5.223.121 is mx-ll-171.5.223-121.dynamic.3bb.co.th. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 171.5.223.121 a VPN, proxy, or data center address?
171.5.223.121 is classified as a mobile network based on network ownership and behavioural analysis.