Summary
| Country |
 United States
|
| Domain | proofpoint.com |
| Size | 1,024 |
| Registry | ARIN |
| Network Name | PROOFPOINT-NET-NORTH-AMERICA |
Whois
Various Registries (Maintained by ARIN) NET148 (NET-148-0-0-0-0) 148.0.0.0 - 148.255.255.255
Proofpoint, Inc. PROOFPOINT-NET-NORTH-AMERICA (NET-148-163-128-0-1) 148.163.128.0 - 148.163.159.255CIDR IP address subranges within 148.163.152.0/22 subnet
- 148.163.152.0/23
- 148.163.154.0/23