AS22843 Proofpoint, Inc.
A network in United States. Here are the size of its IP ranges and the data used for visitor checks.
Visitor check data
- Network type
- Regular network
- Known VPN servers
- None
- Tor exit nodes
- None
This network mainly serves home, office and mobile lines. VPN servers are counted only when they are on the public list. How checks work
Addresses by country
United States11,776 addresses
South Korea256 addresses
South Africa256 addresses
Bahrain256 addresses
France256 addressesLargest IPv4 ranges
Up to 20, largest first.
205.220.172.0 ~ 205.220.183.255
148.163.136.0/21
67.231.152.0 ~ 67.231.157.255
148.163.152.0/22
208.56.12.0/22
208.56.60.0/22
66.159.238.0/23
66.159.250.0/23
148.163.158.0/23
66.159.228.0/24
205.220.187.0/24
208.83.137.0/24
208.83.139.0/24
208.84.67.0/24
208.86.201.0/24
Data: DB-IP (CC BY 4.0), public VPN server list, Tor Project exit list · as of 2026-10-13