63.128.1.0/24

ip:	63.128.1.0 
loc:	United States, Charleston (South Carolina)  
isp:	AS203 Level 3 Parent, LLC » CenturyLink Communications » Blackbaud, Inc. 1137.415 ms
route:	63.128.1.0/24, SAVV-S259964-14 - Blackbaud, Inc., US (Charleston) ... 
reg:	63.128.0.0/15, US, ARIN, 1999-11-30
asn:	AS203 - CENTURYLINK-LEGACY-LVLT-203 Level 3 Parent LLC, US
	  AS3356  - LEVEL3 Level 3 Parent, LLC, US
addr:	  2000 Daniel Island Drive Charleston SC 29492 US
online:	  20 » latency: 204 ms (204ms) 

see also:
   63.128.0.0/15    AS3561   CENTURYLINK-LEGACY-SAVVIS-BLK236 CenturyLink Communications, LLC, US
   63.128.0.0/18    AS3561   CENTURYLINK-LEGACY-SAVVIS-BLK236 CenturyLink Communications, LLC, US
   63.128.0.0/22    AS203    SAVV-S259964-14 Blackbaud, Inc., US
   63.128.0.0/22    AS15148  SAVV-S259964-14 Blackbaud, Inc., US