166.184.55.0/24

ip:	166.184.55.0 mobile-166-184-055-000.mycingular.net
loc:	United States, New York (New York)  
isp:	AS20057 AT&T Enterprises, LLC » AT&T Enterprises, LLC » AT&T Enterprises, LLC 139.317 ms
route:	166.184.55.0/24, AEL-360 - AT&T Enterprises, LLC, US (Atlanta) ... 
reg:	166.128.0.0/10, US, ARIN, 1993-07-09
asn:	AS20057 - ATT-MOBILITY-LLC-AS20057 AT&T Wireless Service, US
	  AS7018  - ATT-INTERNET4 AT&T Services, Inc., US
addr:	  PO Box 1381 Doylestown PA 18901 US
online:	  14 » latency: 317 ms (317ms) 

see also:
   166.184.0.0/15   AS20057  NETBLK-CDPD-B Wireless Data Service Provider Corporation, US
   166.184.0.0/16   AS20057  NETBLK-CDPD-B Wireless Data Service Provider Corporation, US
   166.184.0.0/17   AS20057  NETBLK-CDPD-B Wireless Data Service Provider Corporation, US