12.205.87.0/24

ip:	12.205.87.0 
loc:	United States, Miami (Florida)  
isp:	AS11992 Liberty Mobile Puerto Rico Inc. » Liberty Mobile Puerto Rico Inc. » AT&T Services, Inc. 128.114 ms
route:	12.205.87.0/24, ATT-NET-12-205-64-0-18 - Liberty Mobile Puerto Rico Inc., PR (Ashburn) ... 
reg:	12.0.0.0/8, US, ARIN, 1983-08-23
asn:	AS11992 - LIBERTY-MOB-PR Liberty Mobile Puerto Rico Inc., PR
addr:	  200 S. Laurel AVE. MIDDLETOWN NJ 7748 US
online:	  2 » latency: 148 ms (148ms) 

see also:
   12.128.0.0/9     AS7018   NET12 American Registry for Internet Numbers, US
   12.205.80.0/20   AS11992  ATTWORLD27 AT&T Services, Inc., US