81.4.64.0/19

ip:	81.4.64.0 ip-space.by.proserve.nl
loc:	The Netherlands, Arnhem (Gelderland)  
isp:	AS31586 Signet B.V. » Signet B.V. » Cust Signet ID 131.245 ms
route:	81.4.64.0/19, NL-SIGNET-20020510 - Signet B.V., NL (Amsterdam) ... 
reg:	81.4.64.0/19, NL, RIPE, 2002-05-10
asn:	AS21155 - ASN-PROSERVE Amsterdam, NL, NL
	  AS49685 - Signet-AS Signet B.V., NL
addr:	  Achtseweg Zuid 241 B 5651GW Eindhoven NETHERLANDS
online:	  525 » latency: 67 ms (113ms) 

see also:
   81.4.64.0/20     AS31586  Signet B.V. Cust Signet ID, NL
   81.4.80.0/22     AS31586  NL-SIGNET-20020510 Signet B.V., NL
   81.4.84.0/22     AS35470  XLIS-OS2 XLIS OS2, NL
   81.4.88.0/21     AS31586  NL-SIGNET-20020510 ..., NL