100.64.0.1
Owned by Reserved Address — N/A (ISP Internal)
Shared Address Space (CGNAT) ✓ Safe N/A

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📌 IP Address Details
IP Address100.64.0.1
Owner / OrganizationReserved Address
TypeShared Address Space (CGNAT)
HostnameN/A
ASNN/A
ISPN/A
LocationN/A (ISP Internal)
Common PortsN/A
Safe to Connect?✅ Yes
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What Is 100.64.0.1?

100.64.0.1 is a well-known IP address owned and operated by Reserved Address. It is classified as a Shared Address Space (CGNAT) and is primarily used for: Part of the 100.64.0.0/10 Shared Address Space defined in RFC 6598. Used internally by ISPs for Carrier-Grade NAT (CGNAT) — the system ISPs use to share a single public IP between multiple customers.

The address belongs to Autonomous System N/A, registered to N/A. If you have seen 100.64.0.1 appear in your network logs, firewall rules, or router settings, it is almost certainly legitimate traffic related to IANA’s services.

Is 100.64.0.1 Safe?

✅ Yes, 100.64.0.1 is safe. This IP address belongs to Reserved Address, 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 IANA’s services.

Who Owns 100.64.0.1?

100.64.0.1 is registered under ASN N/A and is allocated to Reserved Address. The address resolves to the hostname N/A and is geographically associated with N/A (ISP Internal).

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 100.64.0.1 is publicly visible and traceable back to Reserved Address, 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 100.64.0.1

Why does my IP start with 100.64?
If your IP starts with 100.64, your ISP is using Carrier-Grade NAT (CGNAT). This means you share a public IP with other customers and your device sits behind two layers of NAT.
Does CGNAT affect my internet speed?
CGNAT can cause issues with port forwarding, online gaming, VPNs, and P2P connections. It should not significantly affect normal browsing speed.
How do I get a real public IP instead of CGNAT?
Contact your ISP and request a dedicated public IP address. Some ISPs offer this free of charge, others charge a small monthly fee.

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Last updated: March 28, 2026 • Data sourced from public WHOIS / ARIN / RIPE registries. Report an error

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