Learn how Internet Service Providers map to IP addresses, why ASN data matters, and how PINIP.net identifies carriers like VNPT, Jio, and OVH.
An Internet Service Provider (ISP) is the company that assigns or routes your public IP block. In a PINIP.net report, the ISP field maps to WHOIS/RDAP registrant data and BGP announcements — often showing brands like Comcast, Deutsche Telekom, or regional carriers.
The ISP name helps admins answer: Who owns this IP? and Is this residential or hosting traffic?
These providers appear most often in recent lookups on PINIP.net (aggregate visitor data):
Security teams whitelist corporate ISP ASNs, CDN operators flag datacenter ISPs, and support staff verify whether a user's reported location matches their carrier region.
VPNs, mobile gateways, and parent companies can show a different registered name than your bill.
Enter the address on the homepage or use GET /api?ip=....