166.40.166.0/23

ip:	166.40.166.0 
loc:	United States, Boston (Massachusetts)  
isp:	AS3372 Verizon Business » Verizon Business » Verizon Business 843.453 ms
route:	166.40.166.0/23, MCI-NETCS3 - Verizon Business, US (Kansas City) ... 
reg:	166.40.0.0/16, US, ARIN, 1996-12-09
asn:	AS3372 - MCI-ASN Verizon Business, US
	  AS3378  - MCI-ASN Verizon Business, US
addr:	  22001 Loudoun County Parkway Ashburn VA 20147 US

see also:
   166.32.0.0/12    AS3371   NET166 Various Registries (Maintained by ARIN), US