AddrGen
AddrGen

Fake IP Address Generator (IPv4 & IPv6)

Generate RFC-compliant synthetic IPv4 and IPv6 test addresses, simulated ASNs, subnet masks, and geo-IP telemetry across 54 countries for network engineering and QA verification.

Synthetic IPv4 Specimen
RFC 5737 (TEST-NET-1 Documentation)
192.0.2.146
IPv6: 2001:0db8:85a3:0000::8a2e
🇺🇸 Washington, United States • AS64512

Network & ASN Telemetry

US • Synthetic
CIDR Notation192.0.2.146/24
Subnet Mask255.255.255.0
Simulated ASNAS64512
Simulated ISPCloudTransit Specimen Network (RFC 5737 Test Specimen)
Test MAC Address02:42:AC:11:00:02
PTR Reverse DNShost-146.192-0-2.specimen.testnet
Bulk IP Generator (CSPRNG Batch):

IETF RFC Compliance & Reserved Testnet Ranges

Why professional engineers use reserved testnet addresses rather than arbitrary random digits:

RFC 5737 IPv4 TEST-NET

Three /24 blocks (192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24) designated exclusively for software documentation and testing.

RFC 3849 IPv6 Prefix

The 2001:db8::/32 block is universally reserved for documentation and simulation, ensuring safe IPv6 parsing and regex validation.

Zero Collision Guarantee

Will never interfere with local LANs (RFC 1918 private ranges like 192.168.x.x or 10.x.x.x) or trigger alerts on public IDS/IPS firewalls.

Need complete person profiles with synthetic IPs?Explore Fake Address Generator

Frequently Asked Questions

Answers to common network testing and synthetic IP address questions.