All/most of these formats should work in all browsers. Additionally, in dotted format, each octet can be of the different bases. For example, 207.0x8E.0203.235 is a valid (though unconventional) equivalent to the above addresses. (Wikipedia article on IPv4)Spammers are actively using this technique; this URL arrived today in a Pump and Dump stock spam:
http://0x00000000000d8.00000000000323.0x000000000000000000000009e.124/
The link in the email refers to MoneyCentral.MSN.com, but actually redirects to a random .BIZ site.
The format of this URL is:
- 'Dotted Hex with leading zeroes' .
- 'Dotted Octal with leading zeroes' .
- 'Dotted Hex with leading zeroes' .
- 'Dotted Decimal'.