MJ12 (Majestic-12)

MJ12bot is Majestic’s distributed web crawler. Public summaries cite IPv4 prefixes on OVH-related space; verify against Majestic’s live crawler documentation before allowlisting.

Autonomous systems

Hosting context

Third-party hosting & clouds

OVH SAS (typical)

AS16276

MJ12 nodes are widely reported on OVH and related hosting ASNs; routing can change - use Majestic’s published guidance where available.

MJ12bot IPv4 prefixes Maintained feed

Official sources

https://sourcecidr.com/feeds/mj12.json Open raw JSON

Documentation

Majestic

Published prefixes

51.68.102.0/24
51.68.111.0/24
51.68.236.0/24
195.191.219.0/24
162.210.192.0/21