216.166.0.0/17

ip:	216.166.0.0 216-166-0-0.fwd.datafoundry.com
loc:	United States, Houston (Texas)  
isp:	AS23005 SWITCH, LTD » SWITCH, LTD » SWITCH, LTD 754.322 ms
route:	216.166.0.0/17, SWITC-2 - SWITCH, LTD, US (Houston (Westbranch)) ... 
reg:	216.166.0.0/17, US, ARIN, 2000-08-23
asn:	AS23005 - SWITCH-LTD SWITCH LTD, US
	  AS1299  - TWELVE99 Arelion, f/k/a Telia Carrier, SE
	  AS3356  - LEVEL3 Level 3 Parent, LLC, US
	  AS7018  - ATT-INTERNET4 AT&T Enterprises, LLC, US
addr:	  7135 South Decatur Blvd Las Vegas NV 89118 US
online:	  2.884 » latency: 116 ms (148ms) 

see also:
   216.166.5.0/24   AS23005  YHC-4 SWITCH, LTD, US
   216.166.32.0/20  AS23005  YHC-4 SWITCH, LTD, US
   216.166.43.0/24  AS23005  YHC-4 SWITCH, LTD, US