You will need to install the IPinfo CLI to convert the IP range to their CIDR equivalent. I believe the range2cidr command is also available as a standalone binary as well.
After that, you might want to aggregate the IP ranges to bigger ranges. I have used this in the past for this:
If you can download the free IPinfo IP to ASN database CSV file. You can run the following command to get the IP ranges of an ASN.
```
grep AS19551 asn.csv | ipinfo range2cidr | cut -f1 -d ','
```
You will need to install the IPinfo CLI to convert the IP range to their CIDR equivalent. I believe the range2cidr command is also available as a standalone binary as well.
After that, you might want to aggregate the IP ranges to bigger ranges. I have used this in the past for this:
https://github.com/job/aggregate6