This page covers IP addresses allocated to United States (US), including major ISPs, IP ranges, and what you should know about United States IP addresses.
About United States IP Addresses
United States is known for home of most major tech companies including Google, Amazon, Meta, Cloudflare, and Apple. US IP ranges are among the most scrutinized globally for both legitimate and malicious traffic.
IP addresses in United States are allocated through ARIN — the Regional Internet Registry for this region. Example IP range: 8.8.8.0/24. The country-code top-level domain is .us.
Major ISPs in United States
The primary Internet Service Providers (ISPs) serving United States include: Comcast (AS7922), AT&T (AS7018), Verizon (AS701), Lumen (AS3356). You can look up the full technical details of any of these ISPs using our WHOIS lookup tool.
How to Check if an IP is from United States
To verify whether an IP address belongs to United States, use the ExamineIP IP lookup tool. It shows the country, ISP, city, and ASN for any IP address instantly. You can also look up multiple IPs at once using the Bulk IP Lookup tool.
VPN Laws in United States
VPN use is legal in United States. Using a VPN is a legitimate way to protect your privacy and access geo-restricted content.
If you want to appear as if you are connecting from United States, or if you want to hide your real location from United States IP-based tracking, a VPN can help. PureVPN has servers in United States and 77 other countries. IPVanish is another strong option.
IP Geolocation Accuracy for United States
IP geolocation for United States is generally accurate at the country level but less precise for city or region. ISPs register their IP blocks to their headquarters or major data centers, which may be in a different city than the actual user. Learn more: How accurate is IP location tracking?
Check Your Own IP
See your current IP address, country, ISP, and whether you appear to be in United States: Check my IP address