Autonomous System
AS26211 Proofpoint, Inc.
BusinessActiveUnited StatesARIN
AS26211 (PROOFPOINT-ASN-US-WEST) is a business network operated by Proofpoint, Inc. in United States, registered with ARIN. It has 52 IPv4 prefixes with 14,592 addresses and 3 IPv6 prefixes, which makes it the 8,321st largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses14,592in 52 prefixes
IPv6 prefixes3≈ 4.8 × 10²⁴ addresses
Size rank#8,321of 82,200 active ASNs
Details
OrganizationProofpoint, Inc.
AS namePROOFPOINT-ASN-US-WEST
Websiteproofpoint.com
Country United States (US)
Network typeBusiness
RegistryARIN
Abuse contactabuse@proofpoint.com
Registered2007-10-31
Last updated2012-02-24
IPv4 prefixes
52 prefixes · 14,592 addresses| Network | Addresses | First – last address |
|---|---|---|
| 148.163.148.0/22 | 1,024 | 148.163.148.0 – 148.163.151.255 |
| 66.159.248.0/23 | 512 | 66.159.248.0 – 66.159.249.255 |
| 148.163.156.0/23 | 512 | 148.163.156.0 – 148.163.157.255 |
| 66.159.227.0/24 | 256 | 66.159.227.0 – 66.159.227.255 |
| 66.159.240.0/24 | 256 | 66.159.240.0 – 66.159.240.255 |
| 66.159.241.0/24 | 256 | 66.159.241.0 – 66.159.241.255 |
| 67.231.144.0/24 | 256 | 67.231.144.0 – 67.231.144.255 |
| 67.231.145.0/24 | 256 | 67.231.145.0 – 67.231.145.255 |
| 67.231.146.0/24 | 256 | 67.231.146.0 – 67.231.146.255 |
| 67.231.147.0/24 | 256 | 67.231.147.0 – 67.231.147.255 |
| 67.231.148.0/24 | 256 | 67.231.148.0 – 67.231.148.255 |
| 67.231.149.0/24 | 256 | 67.231.149.0 – 67.231.149.255 |
| 67.231.150.0/24 | 256 | 67.231.150.0 – 67.231.150.255 |
| 67.231.151.0/24 | 256 | 67.231.151.0 – 67.231.151.255 |
| 67.231.158.0/24 | 256 | 67.231.158.0 – 67.231.158.255 |
| 67.231.159.0/24 | 256 | 67.231.159.0 – 67.231.159.255 |
| 148.163.132.0/24 | 256 | 148.163.132.0 – 148.163.132.255 |
| 148.163.133.0/24 | 256 | 148.163.133.0 – 148.163.133.255 |
| 148.163.134.0/24 | 256 | 148.163.134.0 – 148.163.134.255 |
| 148.163.135.0/24 | 256 | 148.163.135.0 – 148.163.135.255 |
| 148.163.144.0/24 | 256 | 148.163.144.0 – 148.163.144.255 |
| 148.163.145.0/24 | 256 | 148.163.145.0 – 148.163.145.255 |
| 148.163.146.0/24 | 256 | 148.163.146.0 – 148.163.146.255 |
| 148.163.147.0/24 | 256 | 148.163.147.0 – 148.163.147.255 |
| 205.220.160.0/24 | 256 | 205.220.160.0 – 205.220.160.255 |
148.163.148.0/22 66.159.248.0/23 148.163.156.0/23 66.159.227.0/24 66.159.240.0/24 66.159.241.0/24 67.231.144.0/24 67.231.145.0/24 67.231.146.0/24 67.231.147.0/24 67.231.148.0/24 67.231.149.0/24 67.231.150.0/24 67.231.151.0/24 67.231.158.0/24 67.231.159.0/24 148.163.132.0/24 148.163.133.0/24 148.163.134.0/24 148.163.135.0/24 148.163.144.0/24 148.163.145.0/24 148.163.146.0/24 148.163.147.0/24 205.220.160.0/24
The 25 largest of 52. The API and the database have all of them.
IPv6 prefixes
3 prefixes- 2620:100:9000::/47
- 2620:100:900c::/48
- 2620:100:900d::/48
2620:100:9000::/47 2620:100:900c::/48 2620:100:900d::/48
Query AS26211 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS26211&key=YOUR_API_KEY"
Any address in its prefixes resolves to AS26211, with or without a key:
curl "https://api.ipapi.is/?q=148.163.148.1"
Other networks of Proofpoint, Inc.
Largest networks in United States
AS749 United States Department of Defense (DoD)227,464,192 IPv4 addressesAS16509 Amazon.com, Inc.218,038,784 IPv4 addressesAS7018 AT&T Enterprises, LLC117,262,080 IPv4 addressesAS8075 Microsoft Corporation81,463,040 IPv4 addressesAS721 United States Department of Defense (DoD)73,070,080 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses