72.157.4.0/23

ip:	72.157.4.0 
loc:	United States, Louisville (Kentucky)  
isp:	AS7018 AT&T Enterprises, LLC » AT&T Enterprises, LLC » EARS Loopback 1 - SDF 548.464 ms
route:	72.157.4.0/23, BLS-72-157-4-0-1001291007 - EARS Loopback 1 - SDF, US (Louisville) ... 
reg:	72.156.0.0/14, US, ARIN, 2005-08-11
asn:	AS7018 - ATT-INTERNET4 AT&T Enterprises LLC, US
	  AS3491  - CONSOLE-CONNECT-ASN PCCW Global, Inc., US
	  AS2914  - NTT-DATA-2914 NTT America, Inc., US
	  AS3356  - LEVEL3 Level 3 Parent, LLC, US
	  AS1299  - TWELVE99 Arelion, f/k/a Telia Carrier, SE
	  AS6939  - HURRICANE Hurricane Electric LLC, US
	  AS6453  - AS6453 TATA COMMUNICATIONS (AMERICA) INC, US
addr:	  575 Morosgo Dr. NE Atlanta GA 30324 US
online:	  4 » latency: 132 ms (132ms) 

see also:
   72.156.0.0/14    AS6389   BELLSNET-BLK16 AT&T Enterprises, LLC, US