How do I log into 100.64.0.1 router admin?

Ensure your device is connected to your router's network via Wi-Fi or Ethernet. Open any web browser and enter http://100.64.0.1 into the URL address bar. Enter the default username and password (commonly admin/admin or admin/password).

What if http://100.64.0.1 does not respond or times out?

Verify your actual gateway IP by opening Command Prompt on Windows and typing 'ipconfig', or Terminal on Mac and typing 'netstat -nr'. If your gateway shows a different address, navigate to that IP instead.

RFC Address CIDR: 100.64.0.0/10

100.64.0.1 Router Admin Login & IP Guide

100.64.0.1 is a reserved IP address commonly used as the default gateway for consumer wireless routers, modems, and managed local networks. Through this web portal, network administrators configure Wi-Fi SSIDs, encryption passwords, firewall rules, and port forwarding.

Access http://100.64.0.1 Trace IP Routing

Technical Specifications

Standard IP Format: 100.64.0.1

Classification: RFC 6598 Shared Address Space (Carrier-Grade NAT)

Subnet Mask: 255.192.0.0

CIDR Subnet Block: 100.64.0.0/10

Network Scope: ISP Carrier-Grade NAT Intermediate Gateway

Primary Usage: Used by modern ISPs to share a single public IPv4 address across dozens of customers without public routing.

Default Login Credentials for 100.64.0.1

Router Brand / Model	Default Username	Default Password
This is a special-use or public address; router login credentials do not apply.

Devices & Brands Using 100.64.0.1

Starlink T-Mobile Home Internet Reliance Jio Hyperoptic Metronet

Step-by-Step 100.64.0.1 Login Guide

Connect to Local Network: Connect your smartphone, laptop, or desktop computer to your router's wireless network (Wi-Fi) or plug an RJ45 Ethernet cable directly into one of the router's LAN ports (ports 1–4).
Open Web Browser: Launch Chrome, Safari, Firefox, or Edge. In the top address URL bar, type http://100.64.0.1 and press Enter. (Do not enter it into a Google search bar).
Enter Admin Credentials: When the authorization prompt appears, enter the default username and password from the table above or locate the printed sticker on the bottom or back of your physical router.
Configure Settings: Once logged into the dashboard, you can change your wireless network name (SSID), update your WPA2/WPA3 Wi-Fi passphrase, check connected devices, and manage DHCP client reservations.

Troubleshooting: Cannot Connect to 100.64.0.1?

If your router WAN IP is 100.64.x.x but WhatMyIP.site shows a different public IP, you are behind CGNAT.
Standard router port forwarding will not work under CGNAT. You must request a static IP from ISP or use Cloudflare Tunnels/Tailscale.