72.23.0.0/16

ip:	72.23.0.0 
loc:	United States, Butler (Pennsylvania)  
isp:	AS27364 Armstrong » Armstrong » Armstrong 160.097 ms
route:	72.23.0.0/16, ARMC - Armstrong, US (Butler) ... 
reg:	72.23.0.0/16, US, ARIN, 2004-12-06
addr:	  ONE Armstrong Place Butler PA 16001 US
online:	  19.230 » latency: 128 ms (145ms) 

see also:
   72.23.0.0/19     AS27364  AUI-INTERNET Armstrong, US
   72.23.32.0/19    AS27364  AUI-INTERNET Armstrong, US
   72.23.64.0/19    AS27364  AUI-INTERNET Armstrong, US
   72.23.96.0/19    AS27364  AUI-INTERNET Armstrong, US
   72.23.128.0/19   AS27364  AUI-INTERNET Armstrong, US
   72.23.160.0/19   AS27364  AUI-INTERNET Armstrong, US
   72.23.192.0/19   AS27364  AUI-INTERNET Armstrong, US
   72.23.224.0/19   AS27364  ACS-GROVECITYPA Armstrong Cable Services, US