Ways of finding Location from IP Address

WHOIS 

The whois database contains administrative contact info for all domains, filled in during domain registration time, and updated from time to time. This admin info could give some hints.

[simon@ns0 simon]$ whois astray.com@whois.networksolutions.com
[whois.networksolutions.com]

      Registrant:
        Leon Brocard (ASTRAY-DOM)
        4 Park Place Villas
        London, W2 1SP
        UK

      Domain Name: ASTRAY.COM

      Administrative Contact, Technical Contact, Billing Contact:
        Brocard, Leon  (LB5162)  leon@TWOSHORTPLANKS.COM
        4 Park Place Villas
        London
        W2 1SP
        UK
        +44 (0)207 7244696

        Record last updated on 11-May-2000.
        Record expires on 05-Jun-2001.
        Record created on 05-Jun-1998.
        Database last updated on 18-Jan-2001 06:40:14 EST.

        Domain servers in listed order:

        NS0.ASTRAY.COM               195.82.114.160
           NS1.MAILBOX.CO.UK            195.82.96.6