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IP Tracking via LIR NIR RIR / Or requesting IP addresses | RFC3330 | RFC2050 Sometimes its necesary to track down a IP range, especialy if someone is bothering you and no DNS info is available, in those cases you can go to the IP Registry databases. Yes, Thats correct, more then one. Here under you find the ones you can search. Both IPv4 and IPv6 addresses are assigned in a delegated manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or national Internet registry (NIR), or from their appropriate Regional Internet Registry (RIR): APNIC (Asia Pacific Network Information Centre) - Asia/Pacific Region ARIN (American Registry for Internet Numbers) - Americas and Sub-Sahara Africa LACNIC (Regional Latin-American and Caribbean IP Address Registry) – Latin America and some Caribbean Islands RIPE NCC (Réseaux IP Européens) - Europe, the Middle East, Central Asia, and African countries located north of the equator |