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Home
Services
API
Articles
Site
Agreements
- Ad-free
Meet the new 2IP

Your IPv4 address:

Operating system:

Location:

United States Of America, Columbus

Provider:

Amazon.com Inc.

Useful articles

What is a firewall? Rules, ports and network access
What is a network port? TCP, UDP and open ports
Why is my port closed?
How the TCP three-way handshake works
Common service ports and what they mean
Open, closed and filtered ports: interpreting a test
TCP vs UDP: transport differences and practical examples
What is NAT? Home routers and port forwarding
What is CGNAT? Shared IPs and port forwarding
ICMP: network errors, ping and diagnostics
WebSocket: persistent two-way web connections

Check port availability

IP address or domain

For example: 216.73.216.165, opensource.org

Enter port(s) of the website

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2IP 2012 — 2026