12.48.4.0/24

ip:	12.48.4.0 
loc:	United States, Dallas (Texas)  
isp:	AS26975 Texas Health Resources » Texas Health Resources » AT&T Enterprises 142.906 ms
route:	12.48.4.0/24, TEXAS-HE931-4 - Texas Health Resources, US (Arlington (North Arlington)) ... 
reg:	12.0.0.0/8, US, ARIN, 1983-08-23
asn:	AS26975 - TEXAS-HEALTH-RESOURCES Texas Health Resources, US
addr:	  612 East Lamar Arlington TX 76011 US
online:	  6 » latency: 136 ms (136ms) 

see also:
   12.0.0.0/8       AS7018   NET12 American Registry for Internet Numbers, US
   12.0.0.0/9       AS7018   NET12 American Registry for Internet Numbers, US