WHOIS - IP, Domain Lookup - Primary Registrars
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- ARIN (American Registry for Internet Numbers)
- AfriNIC (African Network Information Centre)
- APNIC (Asia Pacific Network Information Centre)
- LACNIC (Latin-American and Caribbean IP Address Registry)
- RIPE (Réseaux IP Européens Network Coordination Centre)
- InterNIC Registry Whois Search
- U.S. Government (.GOV) Domain Registration and Services
- U.S. Dept. of Defense (.MIL) Whois (restricted since 9/11)
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WHOIS - IP, Domain Lookup - Other
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- Top Level Domains (Country Codes) - IANA
- Demon Internet Tools
- Netcraft Web Site Finder
- Hexillion AutoWhois
- Network Solutions Whois
- GeekTools Whois Proxy
- Whois Net
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DNS Queries, Checks, Status Info
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- GeekTools Whois Proxy
- Multiple DNS Lookup Engine
- intoDNS (DNS and Email config tests)
- DNSRight.com (DNS and Email config tests)
- Iptools.com (DNS and IP tools)
- DNSgoodies.com (DNS and IP tools)
- DNSWatch (DNS and IP tools)
- Lookup Server (fwd / rev DNS lookup, etc.)
- CentralOps NsLookup
- ZoneEdit Forward & Reverse Lookups
- MX Toolbox (MX lookup)
- Thednsreport.com (DNS info)
- DNSreport.com (DNS info)
- Whois Ping Port Scanner (misc. tools)
- IPAddressGuide.com
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- Note - many of these are poorly coded, overloaded, and at random times, just plain wrong.
They appear not to be checked by their admins for long periods.
Checking DNS on several of these is recommended, ignoring errors on one or two.
In particular, it is common for reverse (PTR) lookups to fail.-
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Geolocation
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- HostIP.info
- Info Sniper
- IPInfoDB
- IP Address Location
- Geobytes IP Address Locator
- MaxMind
- Spider.com
- IPLocationTools
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IP Block Assignments, Routing Info, etc.
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- Internet Assigned Numbers Authority - IANA
- Fixed Orbit (IP address assignment & peering info)
- Traceroute.org (List of publicly accessible traceroute sites)
- Robtex (IP & routing info)
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Traceroute Sites - Web Access
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- Tracert.com (multiple worldwide)
- TowerStream (multiple US)
- Carnegie Mellon University (Pittsburgh)
- NOC services (New Jersey)
- NetPlex (Hartford, CT)
- ForeThought.Net (Denver, CO)
- Sprintlink (multiple US)
- Level3 Communications (multiple worldwide)
- Hurricane Electric (multiple worldwide)
- Cogent Communications (multiple worldwide)
- XO Communications (multiple US)
- Telstra (Canberra, Australia)
- Optus (Sydney)
- TeliaSonera (Russia)
- Zenon.net (Russia)
- MAcomnet (Russia)
- LinkWan (Beijing, China)
- Institute of High Energy Physics (Beijing, China)
- Network-Tools.in (India)
- delDSL Internet (India)
- CTNet (Japan)
- Harenet (Japan)
- UUNET (Netherlands)
- Euronet Internet (Netherlands)
- TruTeq Wireless (Johannesburg, South Africa)
- Lipex - London Internet Providers Exchange (London)
- Vienna Internet Exchange (Vienna)
- Voice of America (Washington, DC)
- GetNet, Inc. (Phoenix, AZ)
- National Technical University of Athens (Athens, Greece)
- CentralOps Traceroute
- Carleton University (Ottawa)
- HostMDS (Toronto)
- Tera-Byte.com (Edmonton, Canada)
- Cooperativa Telefonica (Argentina)
- Consumer.net (New Jersey)
- inetUtils (Mayalasia)
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Traceroute Sites - Public Telnet Access
(These will launch a local Telnet session)
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- AT&T
- AT&T CERFnet
- Global Crossing
- Hurricane Electric
- Savvis
- Host.net
- Optus (Australia)
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Misc. Info
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- Internet Corporation Assigned Names and Numbers - ICANN
- TCP / UDP Ports - IANA (new site - extremely slow)
- TCP / UDP Ports - IANA (text only - recommended)
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Questions, Comments? - Contact:
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