175.33.128.0/18

ip:	175.33.128.0 sun22-l203.bng.optusnet.com.au
loc:	Australia, Melbourne (Victoria)  
isp:	AS4804 Microplex PTY LTD » SingTel Optus Pty Ltd » Optus Internet Pty Ltd 1576.25 ms
route:	175.33.128.0/18, OPTUSINTERNET-AU - OPTUS INTERNET - RETAIL, AU (Sunshine West) ... 
reg:	175.32.0.0/13, AU, APNIC, 2009-12-08
asn:	AS4804 - MPX-AS SingTel Optus Pty Ltd, AU
	  AS7474  - OPTUSCOM-AS01-AU SingTel Optus Pty Ltd, AU
addr:	  1 Lyonpark Rd. Macquarie Park NSW 2113
online:	  154 » latency: 320 ms (308ms) 

see also:
   175.32.0.0/13    AS4804   OPTUSINTERNET-AU OPTUS INTERNET - RETAIL, AU