Dangerous ASNs You Should Block
What is an autonomous system? What are ASNs?
An autonomous system (AS) is a very large network or group of networks with a single routing policy. Each AS is assigned a unique ASN, which is a number that identifies the AS.
https://www.cloudflare.com/learning/network-layer/what-is-an-autonomous-system/
| ASN | Company |
|---|---|
| AS24940 | Hetzner Online GmbH / clients.your-server.de |
| AS213230 | Hetzner Online GmbH / clients.your-server.de |
| AS35540 | OVH SAS |
| AS16276 | OVH SAS |
| AS9009 | M247 Europe SRL |
| AS14061 | DigitalOcean, LLC / Cloudways |
| AS36352 | ColoCrossing |
| AS12876 | ScaleWay / ONLINE SAS / PONEYTELECOM |
| AS37518 | Fiber Grid INC |
| AS132203 | Shenzhen Tencent |
| AS45090 | Shenzhen Tencent |
| AS55286 | ServerMania / B2 Net Solutions Inc./ Blazing SEO |
| AS203020 | HostRoyale |
| AS60068 | Datacamp Limited / cdn77.com |
| AS20473 | The Constant Company, LLC |
| AS63949 | Akamai Connected Cloud (Linode) |
| AS210558 | 1337 Services GmbH (as210558.net) |
| AS206092 | IPXO LIMITED / Panq B.V. |
| AS62240 | Clouvider |
| AS211252 | Delis LLC/Des Capital B.V. |
| AS26548 | PureVoltage Hosting Inc. |
| AS137409 | GSL Networks Pty LTD / M Nets SAL |
| AS14576 | Hosting Solution Ltd / TrafficTransitSolution LLC / king-servers.com |
| AS40861 | Paradise Networks LLC / Powehouse Management VPNs |
| AS36007 | Kamatera, Inc. / Cloud Web Manage |
| AS24961 | myLoc managed IT AG / webtropia |

You can use Cloudflare firewall rules to block by ASN
https://blog.cloudflare.com/15m-rps-ddos-attack/
https://www.searchenginejournal.com/cloudflare-names-ovh-hetzner-origins-of-ddos-attack/447991/
How do we block ASN within WordPress?
The only way i know for WordPress, is to use CIDRAM plugin for WordPress:
https://wordpress.org/plugins/cidram/