Network tools
Free lookups and estimators, powered by public registry data.
WHOIS · ASN · IP · domain lookup
Query live registry data for any autonomous system, IP address, or domain.
Open toolBGP & routing insights
See announced prefixes, adjacent networks, and routing status for any ASN.
Open toolBERIFFANET network map
How AS219271 is built: exchange presence, announced prefixes, and peers on a live map.
Open toolDNS lookup
Resolve A, AAAA, MX, TXT, NS, and CNAME records for any domain.
Open toolRPKI validity checker
Check whether an ASN is authorized to originate a prefix under RPKI.
Open toolSubnet calculator
Compute network, range, and host counts for any IPv4 or IPv6 CIDR.
Open toolASN cost estimator
Estimate the cost of an ASN + IPv6 PA /44 over time from our published pricing.
Open toolLooking Glass
Coming soonPing, traceroute, and BGP route lookups from Beriffa points of presence.