12.22.154.0/24

ip:	12.22.154.0 
loc:	United States, St Louis (Missouri)  
isp:	AS26380 MasterCard Technologies LLC » MasterCard Technologies LLC » AT&T Enterprises 394.685 ms
route:	12.22.154.0/24, ATT-NET-12-22-152-0 - MasterCard Technologies LLC, US (O'Fallon) ... 
reg:	12.0.0.0/8, US, ARIN, 1983-08-23
asn:	AS26380 - AS-26380 MasterCard Worldwide, US
addr:	  2200 MasterCard Blvd O'Fallon MO 63368 US

see also:
   12.0.0.0/8       AS7018   NET12 American Registry for Internet Numbers, US
   12.0.0.0/9       AS7018   NET12 American Registry for Internet Numbers, US
   12.22.152.0/22   AS26380  ATT-NET-12-22-152-0 MasterCard Technologies LLC, US