Proofpoint, Inc. operates AS26211: 18 IPv4 prefixes covering 14,592 addresses, most of them in 
United States.
By IPv4 addresses the network ranks #7,429 worldwide and #2,491 of 18,202 networks in United States.
The network spreads across 5 countries: United States 93%, Australia 1.8%, Ireland 1.8%.
The largest block is 205.220.160.0 to 205.220.171.255 with 3,072 addresses, geolocated to San Jose.
- IPv4 addresses
- 14,592
- IPv4 prefixes
- 18
- World rank
- #7,429
- IPv6 ranges
- 2
Addresses by country
- United States 93%
Australia 1.8%
Ireland 1.8%
Sweden 1.8%
Italy 1.8%
Largest blocks
- 205.220.160.0 San Jose3,072
- 148.163.144.0 San Jose2,048
- 67.231.144.0 San Jose2,048
- 208.56.56.0 Sydney1,024
- 208.56.8.0 San Jose1,024
- 148.163.132.0 San Jose1,024
- 208.86.202.0 Sunnyvale512
- 208.84.65.0 San Jose512
Networks of similar size
- AS203877 ASTRA TELEKOM DOO BEOGRAD
14,592 - AS16559 RealConnect, Inc14,592
- AS22747 TulsaConnect14,592
- AS19800 Grant County Public Utility District14,592
- AS4208 The Iserv Company, LLC14,592
- AS22438 Clear Rate Communications, Inc.14,592
- AS26793 ICS Advanced Technologies14,592
- AS16030 FIBRACAT Telecom, S.L.U.
14,592
IPv4 prefixes
Questions and answers
Who owns AS26211?
Autonomous system AS26211 is operated by Proofpoint, Inc..
How many IP addresses does AS26211 have?
The network holds 14,592 IPv4 addresses in 18 prefixes, plus 2 IPv6 ranges.
Which country is AS26211 in?
The main country is United States, with addresses in 4 more countries.
How big is AS26211?
By IPv4 addresses it ranks #7,429 worldwide.
What is the largest address block of AS26211?
205.220.160.0 to 205.220.171.255, 3,072 addresses.