Reserved for network performance benchmarking between two devices. Should never appear as a source or destination on a production network.
This range is reserved by IANA — it is not allocated to an organization, ISP, or regional internet registry. Addresses here appear on every private/internal network that follows the standard, so lookups will not identify a specific owner. 198.51.100.0/24 is a sub-block of 198.18.0.0/15, the defining reserved range.
First and last addresses in 198.51.100.0/24
198.51.100.0/24 runs from 198.51.100.0 to 198.51.100.255.
BGP Routing
Live BGP anomalies →This block is announced in BGP, observed across our RIPE RIS collectors.
Frequently Asked Questions
What is 198.51.100.0/24?
198.51.100.0/24 falls inside 198.18.0.0/15 — a Benchmarking range reserved by RFC 2544. Reserved for network performance benchmarking between two devices. Should never appear as a source or destination on a production network.
Is 198.51.100.0/24 routable on the public internet?
No. 198.51.100.0/24 is part of IANA-reserved special-use space (198.18.0.0/15, RFC 2544). Packets with these addresses are either filtered by backbone routers or handled as local/special traffic — they never reach the public internet.
Who owns 198.51.100.0/24?
198.51.100.0/24 is not allocated to any organization or ISP. It is part of the Benchmarking block reserved by IANA under RFC 2544 for every network to use privately.
