166.138.0.0

ip:	166.138.0.0 mobile-166-138-000-000.mycingular.net
loc:	United States, Dallas (Texas)  
isp:	 » AT&T Enterprises » AT&T Enterprises, LLC 134.372 ms
route:	166.138.0.0/16, NETBLK-CDPD-B - Wireless Data Service Provider Corporation, US (Doylestown) ... 
reg:	166.138.0.0/16, US, ARIN, 2025-04-01
addr:	  PO Box 1381 Doylestown PA 18901 US
online:	  98 » latency: 162 ms (162ms) 

see also:
   166.138.160.0/19 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.138.168.0/23 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.138.170.0/24 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.138.172.0/24 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.138.192.0/18 AS20057  AEL-360 AT&T Enterprises, LLC, US