Proofpoint, Inc
IPv4 IPv6
Networks by country: United States (41), Netherlands (6), France (5), Germany (3), Australia (3), United Kingdom (2)
Assigned AS: AS52129, AS22843, AS26211
Assigned AS: AS52129, AS22843, AS26211
Updated: 03 May 2024
We found 41 IPv4 networks operated by this organization:
Results sorted by network size.
CIDR: 148.163.128.0/19
IP Range: 148.163.128.0 - 148.163.159.255
Block size: 8,192
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IP Range: 148.163.128.0 - 148.163.159.255
Block size: 8,192
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CIDR: 205.220.160.0/19
IP Range: 205.220.160.0 - 205.220.191.255
Block size: 8,192
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IP Range: 205.220.160.0 - 205.220.191.255
Block size: 8,192
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CIDR: 66.159.224.0/19
IP Range: 66.159.224.0 - 66.159.255.255
Block size: 8,192
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IP Range: 66.159.224.0 - 66.159.255.255
Block size: 8,192
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CIDR: 67.231.144.0/20
IP Range: 67.231.144.0 - 67.231.159.255
Block size: 4,096
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IP Range: 67.231.144.0 - 67.231.159.255
Block size: 4,096
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CIDR: 143.55.144.0/21
IP Range: 143.55.144.0 - 143.55.151.255
Block size: 2,048
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IP Range: 143.55.144.0 - 143.55.151.255
Block size: 2,048
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CIDR: 185.183.28.0/22
IP Range: 185.183.28.0 - 185.183.31.255
Block size: 1,024
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IP Range: 185.183.28.0 - 185.183.31.255
Block size: 1,024
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CIDR: 208.83.136.0/22
IP Range: 208.83.136.0 - 208.83.139.255
Block size: 1,024
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IP Range: 208.83.136.0 - 208.83.139.255
Block size: 1,024
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CIDR: 208.84.64.0/22
IP Range: 208.84.64.0 - 208.84.67.255
Block size: 1,024
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IP Range: 208.84.64.0 - 208.84.67.255
Block size: 1,024
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CIDR: 208.86.200.0/22
IP Range: 208.86.200.0 - 208.86.203.255
Block size: 1,024
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IP Range: 208.86.200.0 - 208.86.203.255
Block size: 1,024
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CIDR: N/A
IP Range: 143.55.144.0 - 143.55.146.255
Block size: 768
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IP Range: 143.55.144.0 - 143.55.146.255
Block size: 768
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CIDR: 91.207.212.0/23
IP Range: 91.207.212.0 - 91.207.213.255
Block size: 512
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IP Range: 91.207.212.0 - 91.207.213.255
Block size: 512
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CIDR: 143.55.148.0/23
IP Range: 143.55.148.0 - 143.55.149.255
Block size: 512
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IP Range: 143.55.148.0 - 143.55.149.255
Block size: 512
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CIDR: 66.159.236.0/23
IP Range: 66.159.236.0 - 66.159.237.255
Block size: 512
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IP Range: 66.159.236.0 - 66.159.237.255
Block size: 512
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CIDR: 209.249.170.0/23
IP Range: 209.249.170.0 - 209.249.171.255
Block size: 512
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IP Range: 209.249.170.0 - 209.249.171.255
Block size: 512
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CIDR: 209.249.172.0/23
IP Range: 209.249.172.0 - 209.249.173.255
Block size: 512
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IP Range: 209.249.172.0 - 209.249.173.255
Block size: 512
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CIDR: 91.209.104.0/24
IP Range: 91.209.104.0 - 91.209.104.255
Block size: 256
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IP Range: 91.209.104.0 - 91.209.104.255
Block size: 256
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CIDR: 143.55.151.0/24
IP Range: 143.55.151.0 - 143.55.151.255
Block size: 256
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IP Range: 143.55.151.0 - 143.55.151.255
Block size: 256
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CIDR: 199.33.143.0/24
IP Range: 199.33.143.0 - 199.33.143.255
Block size: 256
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IP Range: 199.33.143.0 - 199.33.143.255
Block size: 256
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CIDR: 216.200.144.0/24
IP Range: 216.200.144.0 - 216.200.144.255
Block size: 256
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IP Range: 216.200.144.0 - 216.200.144.255
Block size: 256
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CIDR: 216.200.145.0/24
IP Range: 216.200.145.0 - 216.200.145.255
Block size: 256
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IP Range: 216.200.145.0 - 216.200.145.255
Block size: 256
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CIDR: 208.36.134.0/24
IP Range: 208.36.134.0 - 208.36.134.255
Block size: 256
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IP Range: 208.36.134.0 - 208.36.134.255
Block size: 256
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CIDR: 192.41.49.0/25
IP Range: 192.41.49.0 - 192.41.49.127
Block size: 128
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IP Range: 192.41.49.0 - 192.41.49.127
Block size: 128
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CIDR: 169.44.145.32/27
IP Range: 169.44.145.32 - 169.44.145.63
Block size: 32
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IP Range: 169.44.145.32 - 169.44.145.63
Block size: 32
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CIDR: 216.183.94.0/27
IP Range: 216.183.94.0 - 216.183.94.31
Block size: 32
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IP Range: 216.183.94.0 - 216.183.94.31
Block size: 32
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CIDR: 44.202.169.32/27
IP Range: 44.202.169.32 - 44.202.169.63
Block size: 32
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IP Range: 44.202.169.32 - 44.202.169.63
Block size: 32
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CIDR: 72.12.200.0/27
IP Range: 72.12.200.0 - 72.12.200.31
Block size: 32
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IP Range: 72.12.200.0 - 72.12.200.31
Block size: 32
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CIDR: 35.89.44.32/27
IP Range: 35.89.44.32 - 35.89.44.63
Block size: 32
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IP Range: 35.89.44.32 - 35.89.44.63
Block size: 32
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CIDR: 216.115.71.192/28
IP Range: 216.115.71.192 - 216.115.71.207
Block size: 16
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IP Range: 216.115.71.192 - 216.115.71.207
Block size: 16
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CIDR: 136.179.16.96/28
IP Range: 136.179.16.96 - 136.179.16.111
Block size: 16
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IP Range: 136.179.16.96 - 136.179.16.111
Block size: 16
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CIDR: 72.20.124.160/28
IP Range: 72.20.124.160 - 72.20.124.175
Block size: 16
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IP Range: 72.20.124.160 - 72.20.124.175
Block size: 16
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CIDR: 77.77.189.80/29
IP Range: 77.77.189.80 - 77.77.189.87
Block size: 8
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IP Range: 77.77.189.80 - 77.77.189.87
Block size: 8
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CIDR: 83.167.51.0/29
IP Range: 83.167.51.0 - 83.167.51.7
Block size: 8
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IP Range: 83.167.51.0 - 83.167.51.7
Block size: 8
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CIDR: 63.157.6.24/29
IP Range: 63.157.6.24 - 63.157.6.31
Block size: 8
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IP Range: 63.157.6.24 - 63.157.6.31
Block size: 8
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CIDR: 207.108.181.0/29
IP Range: 207.108.181.0 - 207.108.181.7
Block size: 8
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IP Range: 207.108.181.0 - 207.108.181.7
Block size: 8
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CIDR: 216.115.73.104/29
IP Range: 216.115.73.104 - 216.115.73.111
Block size: 8
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IP Range: 216.115.73.104 - 216.115.73.111
Block size: 8
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CIDR: 216.115.73.112/29
IP Range: 216.115.73.112 - 216.115.73.119
Block size: 8
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IP Range: 216.115.73.112 - 216.115.73.119
Block size: 8
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CIDR: 67.133.44.240/29
IP Range: 67.133.44.240 - 67.133.44.247
Block size: 8
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IP Range: 67.133.44.240 - 67.133.44.247
Block size: 8
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CIDR: 136.179.33.104/29
IP Range: 136.179.33.104 - 136.179.33.111
Block size: 8
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IP Range: 136.179.33.104 - 136.179.33.111
Block size: 8
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CIDR: 192.41.48.64/29
IP Range: 192.41.48.64 - 192.41.48.71
Block size: 8
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IP Range: 192.41.48.64 - 192.41.48.71
Block size: 8
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CIDR: 192.41.48.72/29
IP Range: 192.41.48.72 - 192.41.48.79
Block size: 8
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IP Range: 192.41.48.72 - 192.41.48.79
Block size: 8
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CIDR: 64.79.137.168/29
IP Range: 64.79.137.168 - 64.79.137.175
Block size: 8
All IPs in this network >>
All domains in this network >>
IP Range: 64.79.137.168 - 64.79.137.175
Block size: 8
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