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Organization

Proofpoint, Inc.

IPv4 addresses
38,912
CIDR ranges
61
Category
unknown
BGP prefixes announced
141

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Countries served by Proofpoint, Inc.

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Proofpoint, Inc.

ASNNameIPsPrefixesCountry
AS26211 Proofpoint, Inc. 13.6K 17 US
AS52129 Proofpoint, Inc. 12.3K 24 US
AS22843 Proofpoint, Inc. 11.8K 16 US
AS13916 Proofpoint, Inc. 1.3K 4 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
67.231.144.0/21 2.0K
76.7%
AS26211 US
148.163.136.0/21 2.0K
89.2%
AS22843 US
148.163.144.0/21 2.0K
89.9%
AS26211 US
205.220.160.0/21 2.0K
83.1%
AS26211 US
205.220.176.0/21 2.0K
81.4%
AS22843 US
66.159.232.0/22 1.0K
87.4%
AS52129 US
66.159.244.0/22 1.0K
83.5%
AS52129 US
66.159.252.0/22 1.0K
20.1%
AS52129 US
67.231.152.0/22 1.0K
73.2%
AS22843 US
143.55.144.0/22 1.0K
57.7%
AS52129 US
148.163.132.0/22 1.0K
88.6%
AS26211 US
148.163.152.0/22 1.0K
87.6%
AS22843 US
185.132.180.0/22 1.0K
82.1%
AS52129 GB
185.169.148.0/22 1.0K
0.4%
AS52129 IL
185.183.28.0/22 1.0K
75.2%
AS52129 US
205.220.168.0/22 1.0K
82.2%
AS26211 US
205.220.172.0/22 1.0K
81.4%
AS22843 US
208.56.8.0/22 1.0K
49.7%
AS26211 US
208.56.12.0/22 1.0K
47.5%
AS22843 US
66.159.224.0/23 512
6.4%
AS52129 US
66.159.232.0/23 512
0.0%
AS52129 DE
66.159.236.0/23 512
30.7%
AS52129 US
66.159.238.0/23 512
86.5%
AS22843 US
66.159.240.0/23 512
85.9%
AS26211 US
66.159.244.0/23 512
0.0%
AS52129 DE
66.159.246.0/23 512
0.0%
AS52129 NL
66.159.248.0/23 512
80.7%
AS26211 US
66.159.250.0/23 512
83.0%
AS22843 US
66.159.252.0/23 512
0.0%
AS52129 SA
66.159.254.0/23 512
0.0%
AS52129 AE
67.231.156.0/23 512
77.9%
AS22843 US
67.231.158.0/23 512
79.3%
AS26211 US California Sunnyvale
91.207.212.0/23 512
91.8%
AS52129 US
143.55.144.0/23 512
0.0%
AS52129 DE Hesse Frankfurt am Main
143.55.148.0/23 512
78.3%
AS52129 US
148.163.128.0/23 512
9.0%
AS13916 US
148.163.156.0/23 512
91.6%
AS26211 US
148.163.158.0/23 512
91.6%
AS22843 US
205.220.184.0/23 512
94.3%
AS52129 US
205.220.190.0/23 512
16.4%
AS26211 US
208.56.4.0/23 512
20.9%
AS52129 US
208.86.202.0/23 512
41.6%
AS26211 US California San Jose
66.159.227.0/24 256
52.0%
AS26211 US
66.159.228.0/24 256
52.0%
AS22843 US
66.159.234.0/24 256
0.0%
AS52129 NL
66.159.235.0/24 256
0.0%
AS52129 DE
66.159.243.0/24 256
84.0%
AS52129 US
67.231.159.0/24 256
0.0%
AS26211 CA
91.207.212.0/24 256
0.0%
AS52129 NL
91.207.213.0/24 256
0.0%
AS52129 US
91.209.104.0/24 256
76.2%
AS52129 US
143.55.146.0/24 256
0.0%
AS52129 DE
143.55.147.0/24 256
0.0%
AS52129 GB
143.55.150.0/24 256
80.5%
AS52129 US
148.163.130.0/24 256
1.2%
AS13916 US
185.169.148.0/24 256
1.6%
AS52129 IL
185.169.151.0/24 256
0.0%
AS52129 IL
205.220.184.0/24 256
0.0%
AS52129 DE Hesse Frankfurt am Main
205.220.185.0/24 256
0.0%
AS52129 NL North Holland Amsterdam
205.220.186.0/24 256
60.2%
AS26211 US
205.220.187.0/24 256
56.6%
AS22843 US
205.220.190.0/24 256
0.0%
AS26211 CA
205.220.191.0/24 256
0.0%
AS26211 US
208.56.0.0/24 256
19.1%
AS52129 US
208.56.4.0/24 256
41.8%
AS52129 US
208.56.5.0/24 256
0.0%
AS52129 US
208.56.6.0/24 256
0.0%
AS52129 US
208.56.16.0/24 256
4.3%
AS26211 US
208.56.17.0/24 256
18.8%
AS52129 US
208.83.136.0/24 256
20.3%
AS13916 US
208.83.137.0/24 256
12.5%
AS22843 US
208.83.138.0/24 256
1.2%
AS13916 US
208.83.139.0/24 256
0.8%
AS22843 US
208.84.64.0/24 256
68.0%
AS52129 US
208.84.65.0/24 256
69.5%
AS26211 US California Sunnyvale
208.84.66.0/24 256
48.0%
AS26211 US Utah Saratoga Springs
208.84.67.0/24 256
27.0%
AS22843 US Georgia Atlanta
208.86.200.0/24 256
63.7%
AS52129 US
208.86.201.0/24 256
72.7%
AS22843 US
67.231.158.128/25 128
0.0%
AS26211 CA
208.56.17.128/25 128
0.0%
AS52129 IN
208.84.64.0/25 128
0.0%
AS52129 DE
67.231.158.64/26 64
0.0%
AS26211 CA Ontario Toronto
208.56.17.64/26 64
0.0%
AS52129 IN
208.84.64.128/26 64
0.0%
AS52129 DE
67.231.158.32/27 32
0.0%
AS26211 CA
208.84.64.224/27 32
0.0%
AS52129 US
67.231.158.16/28 16
0.0%
AS26211 CA
208.56.17.32/28 16
0.0%
AS52129 IN
208.84.64.192/28 16
0.0%
AS52129 DE
208.84.64.208/28 16
0.0%
AS52129 US
67.231.158.0/29 8
0.0%
AS26211 CA
208.56.17.0/29 8
0.0%
AS52129 IN
208.56.17.16/29 8
0.0%
AS52129 IN
208.56.17.48/29 8
0.0%
AS52129 IN
67.231.158.12/30 4
0.0%
AS26211 CA
208.56.17.8/30 4
0.0%
AS52129 IN
208.56.17.24/30 4
0.0%
AS52129 IN
208.56.17.60/30 4
0.0%
AS52129 IN
67.231.158.8/31 2
0.0%
AS26211 CA

Frequently Asked Questions

How many IP addresses does Proofpoint, Inc. own?

Proofpoint, Inc. controls 38.9K IPv4 addresses distributed across 61 CIDR ranges. The organization is registered in United States.

What ASNs does Proofpoint, Inc. operate?

Proofpoint, Inc. operates 4 Autonomous Systems. Each ASN represents an independently routed network that Proofpoint, Inc. manages for internet traffic delivery.

What countries does Proofpoint, Inc. serve?

Proofpoint, Inc. has IP address allocations in 5 countries, indicating a multinational network presence for delivering services across these regions.

What type of organization is Proofpoint, Inc.?

Proofpoint, Inc. is categorized as unknown. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-21 13:25:32 UTC
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