cloud-ip-ranges

Backblaze IP ranges

Current IP ranges (CIDRs) used by the Backblaze cloud infrastructure, updated daily.

categorySaaS & Business APIs
websitehttps://www.backblaze.com
ranges85 (26 IPv4, 59 IPv6)
last change
downloads327
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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