Network Lookups may be blocked by the various registries. The direct links for ip address network lookups are:
Americas (ARIN) | Europe (RIPE) | Asia-Pacific (APNIC) | Africa (AfriNIC) | Latin American and Caribbean (LACNIC) | Asia-Pacific (APNIC) | Korea (KRNIC)
Free online network tools : Including Traceroute, DNS Records, HTTP Headers, NsLookup, Whois, Ping, and our own Domain Dossier and Email Dossier.
Input must be Internet host names and can only contain numbers, letters, ".", or "-".
Input must contain at least one "." to be a valid domain name.
Email validation must be an email address.