Backblaze IP ranges
Current IP ranges (CIDRs) used by the Backblaze cloud infrastructure, updated daily.
| category | SaaS & Business APIs |
|---|---|
| website | https://www.backblaze.com |
| ranges | 85 (26 IPv4, 59 IPv6) |
| last change | |
| downloads | 327 |
| download | txt csv json — permalinks, always the latest data |
curl -O https://cloud-ip-ranges.com/download/backblaze.txt
Ranges
Sample of 25 of 85 ranges. Download the full list above, or check a specific IP.
| CIDR | Type | Tag |
|---|---|---|
| 23.144.80.0/24 | ipv4 | AS396865 |
| 2605:72c0:a000::/36 | ipv6 | AS396865 |
| 45.11.36.0/24 | ipv4 | AS40401 |
| 45.11.37.0/24 | ipv4 | AS40401 |
| 45.11.38.0/24 | ipv4 | AS40401 |
| 45.11.39.0/24 | ipv4 | AS40401 |
| 104.153.232.0/23 | ipv4 | AS40401 |
| 104.153.234.0/24 | ipv4 | AS40401 |
| 104.153.235.0/24 | ipv4 | AS40401 |
| 104.153.236.0/24 | ipv4 | AS40401 |
| 104.153.237.0/24 | ipv4 | AS40401 |
| 104.153.238.0/24 | ipv4 | AS40401 |
| 104.153.239.0/24 | ipv4 | AS40401 |
| 149.137.128.0/23 | ipv4 | AS40401 |
| 2605:72c0:100::/45 | ipv6 | AS40401 |
| 2605:72c0:100::/48 | ipv6 | AS40401 |
| 2605:72c0:103::/48 | ipv6 | AS40401 |
| 2605:72c0:105::/48 | ipv6 | AS40401 |
| 2605:72c0:1fc::/48 | ipv6 | AS40401 |
| 2605:72c0:1fd::/48 | ipv6 | AS40401 |
| 2605:72c0:1fe::/48 | ipv6 | AS40401 |
| 2605:72c0:1ff::/48 | ipv6 | AS40401 |
| 2605:72c0:200::/45 | ipv6 | AS40401 |
| 2605:72c0:200::/48 | ipv6 | AS40401 |
| 2605:72c0:203::/48 | ipv6 | AS40401 |
Blocking Backblaze
iptables
curl -sO https://cloud-ip-ranges.com/download/backblaze.txt
while read ip; do
iptables -A INPUT -s $ip -j DROP
iptables -A OUTPUT -d $ip -j DROP
done < backblaze.txt
ufw
curl -sO https://cloud-ip-ranges.com/download/backblaze.txt
while read ip; do
ufw deny from $ip
ufw deny to $ip
done < backblaze.txt
fail2ban
sudo tee /etc/fail2ban/filter.d/backblaze-block.conf << EOF
[Definition]
failregex = ^.*$
ignoreregex =
EOF
sudo tee /etc/fail2ban/jail.d/backblaze-block.conf << EOF
[backblaze-block]
enabled = true
filter = backblaze-block
action = iptables-allports[name=backblaze]
logpath = /tmp/backblaze.txt
findtime = 1
bantime = -1
maxretry = 1
EOF
curl -so /tmp/backblaze.txt https://cloud-ip-ranges.com/download/backblaze.txt
sudo systemctl restart fail2ban
pfSense / OPNsense
curl -sO https://cloud-ip-ranges.com/download/backblaze.txt
# Firewall > Aliases: new alias BACKBLAZE_BLOCK, type Network(s), import the file
# Firewall > Rules > WAN: Action=Block, Source=BACKBLAZE_BLOCK
About
These IP ranges are sourced directly from Backblaze's official feeds and are updated regularly to ensure accuracy. The data includes IPv4 and IPv6 ranges used by Backblaze's infrastructure worldwide. Last update was 1 minute ago.
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