166.128.0.0/10

ip:	166.128.0.0 
loc:	United States, Seattle (Washington)  
isp:	AS20057 AT&T Enterprises, LLC » AT&T Enterprises, LLC » AT&T Enterprises, LLC 352.63 ms
route:	166.128.0.0/10, NETBLK-CDPD-B - Wireless Data Service Provider Corporation, US (Dallas (Dallas Downtown Historic District)) ... 
reg:	166.128.0.0/13, US, ARIN, 2025-04-01
addr:	  PO Box 1381 Doylestown PA 18901 US
online:	  208.066 » latency: 270 ms (269ms) 

see also:
   166.128.0.0/14   AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.128.0.0/16   AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.129.0.0/16   AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.130.0.0/17   AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.130.0.0/18   AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.130.64.0/18  AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.130.128.0/18 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.130.192.0/18 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.0.0/16   AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.26.0/24  AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.30.0/24  AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.31.0/24  AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.77.0/24  AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.83.0/24  AS64011  AEL-360 AT&T Enterprises, LLC, US
   166.131.107.0/24 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.110.0/24 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.115.0/24 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.116.0/23 AS20057  AEL-360 AT&T Enterprises, LLC, US
   166.131.118.0/23 AS20057  AEL-360 AT&T Enterprises, LLC, US