166.147.64.0/18

ip:	166.147.64.0 mobile-166-147-064-000.mycingular.net
loc:	United States, Dallas (Texas)  
isp:	AS20057 AT&T Enterprises, LLC » AT&T Enterprises, LLC » AT&T Enterprises, LLC 578.712 ms
route:	166.147.64.0/18, AEL-360 - AT&T Enterprises, LLC, US (Doylestown) ... 
reg:	166.147.64.0/18, US, ARIN, 2025-04-01
addr:	  PO Box 1381 Doylestown PA 18901 US
online:	  139 » latency: 136 ms (140ms) 

see also:
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   166.147.127.0/24 AS20057  AEL-360 AT&T Enterprises, LLC, US