Professional IP Registry Lookup
IP WHOIS Details
Query regional network registries recursively to isolate network ranges, ISP owners, allocations, regional servers, and administrative abuse contacts.
BGP Network & Carrier
BGP Autonomous System (ASN)
Unknown ISP
Query IP Address
66.218.64.0
Reverse DNS (PTR)
unknown.yahoo.com
Country / Region
Unknown
Regional Internet Registry (RIR)
ARIN (North America)
Security & Reputation Assessment
USOM Blacklist
Clean — No Active Block in Turkey
Global DNSBL Blacklist Reputation
Spamhaus Zen
Clean
Barracuda BRBL
Clean
UCEPROTECT L1
Clean
Quick Diagnostics & Actions
Subnet Diagnostics
IP Range Span
66.218.64.1
→
66.218.95.254
Subnet Block / Range
CIDR Prefix
/19
IP Version
IPv4
Subnet Mask
255.255.224.0
Total Hosts
8,190
Network Class
Class A
Network Name
A-YAHOO-U23
Network Type / Status
DIRECT ALLOCATION
Registry Owner & Contacts
Sponsoring Organization / Owner
Yahoo Holdings Inc.
OH-207
Allocated
15.01.2002
Last Updated
01.05.2019
Abuse / Security Contact
Registry ID / Handle
NET-66-218-64-0-1
Admin Contact
Tech Contact