1.41.64.0/18

ip:	1.41.64.0 mas21-l206.bng.optusnet.com.au
loc:	Australia, Sydney (New South Wales)  
isp:	AS4804 Microplex PTY LTD » SingTel Optus Pty Ltd » Optus Internet Pty Ltd 1304.458 ms
route:	1.41.64.0/18, OPTUSINTERNET-AU - OPTUS INTERNET - RETAIL, AU (Mascot) ... 
reg:	1.40.0.0/14, AU, APNIC, 2010-05-24
asn:	AS4804 - MPX-AS SingTel Optus Pty Ltd, AU
addr:	  1 Lyonpark Rd. Macquarie Park NSW 2113
online:	  129 » latency: 307 ms (361ms) 

see also:
   1.40.0.0/14      AS4804   OPTUSINTERNET-AU OPTUS INTERNET - RETAIL, AU