专业 IP 注册机构查询
IP WHOIS 详情
递归查询全球区域互联网注册机构，以分离网络范围、ISP 所有者、分配、区域服务器和管理性滥用联系人。
BGP Network & Carrier
BGP 自治系统 (ASN)
AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH]
Query IP Address
137.138.0.0
反向 DNS (PTR)
1.net.cern.ch
Country / Region
CH
Regional Internet Registry (RIR)
ARIN (North America)
Security & Reputation Assessment
USOM Blacklist
Clean — No Active Block in Turkey
Global DNSBL Blacklist Reputation
Spamhaus Zen
干净
Barracuda BRBL
干净
UCEPROTECT L1
干净
Quick Diagnostics & Actions
Subnet Diagnostics
IP Range Span
137.138.0.1
→
137.138.255.254
Subnet Block / Range
CIDR Prefix
/16
IP Version
IPv4
Subnet Mask
255.255.0.0
Total Hosts
65,534
Network Class
Class B
Network Name
CERN-GPN
Network Type / Status
LEGACY
Registry Owner & Contacts
Sponsoring Organization / Owner
CERN-MNT
CERN-MNT
Allocated
1970-01-01T00:00:00Z
最后更新
14.04.2016
滥用 / 安全联系方式
Registry ID / Handle
137.138.0.0 - 137.138.255.255
Admin Contact
Tech Contact