What Is 6.6.6.6? IP Address Info, Owner & Lookup (2026) What Is 6.6.6.6? IP Address Info, Owner & Lookup (2026) - ExamineIP
6.6.6.6
Owned by US Department of Defense — Columbus, Ohio, US
US Military / DoD IP ✓ Safe AS749

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📌 IP Address Details
IP Address6.6.6.6
Owner / OrganizationUS Department of Defense
TypeUS Military / DoD IP
HostnameN/A
ASNAS749
ISPDoD Network Information Center
LocationColumbus, Ohio, US
Common PortsN/A
Safe to Connect?✅ Yes
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What Is 6.6.6.6?

6.6.6.6 is a well-known IP address owned and operated by US Department of Defense. It is classified as a US Military / DoD IP and is primarily used for: An IP in the 6.0.0.0/8 range owned by the US Department of Defense. The DoD holds several large IP blocks dating from the early internet era. These addresses are used for military and government network infrastructure.

The address belongs to Autonomous System AS749, registered to DoD Network Information Center. If you have seen 6.6.6.6 appear in your network logs, firewall rules, or router settings, it is almost certainly legitimate traffic related to US DoD’s services.

Is 6.6.6.6 Safe?

Yes, 6.6.6.6 is safe. This IP address belongs to US Department of Defense, a reputable organization. It is not associated with malicious activity, spam, or known threat actors. Seeing it in your network traffic is normal if you use US DoD’s services.

Who Owns 6.6.6.6?

6.6.6.6 is registered under ASN AS749 and is allocated to US Department of Defense. The address resolves to the hostname N/A and is geographically associated with Columbus, Ohio, US.

IP address ownership data is publicly available through the Regional Internet Registries (RIRs) such as ARIN, RIPE NCC, and APNIC. You can verify ownership of any IP at any time using a WHOIS lookup.

How to Protect Your Own IP Address

Just like 6.6.6.6 is publicly visible and traceable back to US Department of Defense, your personal IP address is visible to every website you visit. Websites, advertisers, and even bad actors can see your approximate location and ISP from your IP alone.

The easiest way to hide your IP is to use a VPN (Virtual Private Network). A VPN replaces your real IP with one of the VPN provider’s servers, making you anonymous online.

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Frequently Asked Questions About 6.6.6.6

Who owns the 6.x.x.x IP range?
The 6.0.0.0/8 range is owned by the US Army. The Department of Defense holds several large IP blocks allocated in the early days of the internet when large blocks were freely assigned.
Why does the US military own so many IP addresses?
The DoD was an early user of the ARPANET — the precursor to the internet — and was allocated large IP blocks before scarcity became an issue. They hold approximately 175 million IPv4 addresses.
Is 6.6.6.6 accessible from the internet?
Most DoD IP ranges are not publicly accessible. Connections to 6.x.x.x addresses are typically blocked or filtered.

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Last updated: March 29, 2026 • Data sourced from public WHOIS / ARIN / RIPE registries. Report an error

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