IP WHOIS Details
Query regional network registries recursively to isolate network ranges, ISP owners, allocations, regional servers, and administrative abuse contacts.
Examples:
Diagnostics Tools:
DNS Records
Email Security
DNS Propagation
WHOIS Domain
SSL Certificate
IP Blacklist DNSBL
BGP Network Routing Carrier
BGP Autonomous System (ASN)
AS24940 (HETZNER-AS - Hetzner Online GmbH, DE) [DE]
Query IP Address
136.243.0.0
Reverse DNS (PTR)
static.0.0.243.136.clients.your-server.de
Country / Region
NL
Regional Internet Registry (RIR)
UNKNOWN (Unknown)
Security Reputation Assessment
USOM Blacklist
Clean — No Active Block in Turkey
Global DNSBL Blacklist Reputation
Spamhaus Zen
Listed
Barracuda BRBL
Clean
UCEPROTECT L1
Clean
Quick Diagnostics Actions
Subnet Diagnostics
IP Range Span
136.243.0.1
→
136.243.255.254
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
RIPE-ERX-136-243-0-0
Network Type / Status
Early Registrations, Transferred to RIPE NCC
Registry Owner Contacts
Sponsoring Organization / Owner
RIPE Network Coordination Centre
RIPE
Allocated
14.04.2004
Last Updated
10.02.2025
Abuse / Security Contact
Registry ID / Handle
NET-136-243-0-0-1
Admin Contact
—
Tech Contact
RNO29-ARIN
TECH