Links

Contents 1 IP Database Lookups 2 DNS Query Tools 3 Registered IP Port Numbers and Protocols 4 Network related Mailing Lists 5 Looking Glass

IP Database Lookups

• American Registration for Internet Numbers
• RIPE Network Coordination Centre (European Internet Registry)
• Asia Pacific Network Information Centre
• Latin America and Caribbean Internet Address Registry
• IP INDEX Encyclopedia

DNS Query Tools

• DNSstuff

Registered IP Port Numbers and Protocols

• IANA TCP/UDP Port Numbers
• IANA ICMP Type Numbers
• IANA IP Protocol Numbers

Network related Mailing Lists

• North American Network Operators Group

Looking Glass

• AT&T Looking Glass
• Oregon IX Looking Glass
• CERFnet