🔍 IP Address Lookup for 203.139.208.4

Find out where this IP is located, whether it’s blacklisted, and if it’s linked to suspicious activity. Get real-time data for network security, geolocation, and abuse reporting.

🌍 Location & Time Zone

Continent: Asia (AS)
Country: Japan (JP)
Region: Tokushima
City: Tokushima
Time Zone: Asia/Tokyo

🔗 Hostname Info

client203-139-208-4.ctm.ne.jp

📘 What Can You Do Next?

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🔒 Stay ahead of abuse reports by monitoring your own IPs.
🧠 Use this data to better understand your site’s traffic sources.

Instant results with geolocation, blacklist status, and more.

📘 What Is an IP Address and Why Does It Matter?

An IP address (Internet Protocol address) identifies a device on a local or global network. It's like a digital street address that allows devices to communicate and exchange data.

IPv4: A 32-bit address format, such as 127.0.0.1. Still widely used across the internet.

IPv6: A 128-bit format like 2001:db8:85a3::8a2e:370:7334, created to handle the growing number of connected devices.

With our free online tools, you can:

Check your current public IP address

Find IP geolocation (country, city, region, provider)

Determine if an IP is blacklisted or suspicious

Run WHOIS lookups and DNS checks

Understand network behavior and troubleshoot connectivity issues

❓ Frequently Asked Questions

No, your IP address alone cannot reveal your personal identity. It may show your approximate location and your internet service provider (ISP), but not your name or exact address.

IP geolocation is generally accurate to the city or region level. Accuracy can vary depending on the database used and the ISP’s infrastructure.

Public IP addresses are assigned by your ISP and visible on the internet. Private IPs are used within local networks and are not directly reachable from the internet.

You can perform a WHOIS lookup to find out the organization, ISP, or company associated with an IP address, along with contact information and location.

Yes, you can block IPs using firewalls, server configuration files like .htaccess, or web application firewalls (WAFs) to prevent unwanted access or abuse.

Use our blacklist checker to scan multiple DNS-based blacklists (DNSBLs) to see if the IP is flagged for spam, malware, or abusive behavior.

🌍 Location & Time Zone

🔗 Hostname Info

📘 What Can You Do Next?

📘 What Is an IP Address and Why Does It Matter?

❓ Frequently Asked Questions

Can my IP address reveal my identity?

How accurate is IP geolocation?

What’s the difference between public and private IP addresses?

How do I find out who owns an IP address?

Can I block an IP address from accessing my website?

How do I check if an IP address is blacklisted?