AS26211 Proofpoint, Inc. details

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AS26211 – Proofpoint, Inc.

Field	Value
Country	United States
Website	proofpoint.com
Hosted domains	35
Number of IPv4	13,824
Number of IPv6	4,835,703,278,458,516,698,824,704
ASN type	Hosting
Registry	arin
Allocated	18 years ago on Oct 31, 2007
Updated	14 years ago on Feb 24, 2012

Netblock	Company	Num of IPs
148.163.148.0/22	Proofpoint, Inc.	1,024
148.163.156.0/23	Proofpoint, Inc.	512
66.159.248.0/23	Proofpoint, Inc.	512
148.163.132.0/24	Proofpoint, Inc.	256
148.163.133.0/24	Proofpoint, Inc.	256
148.163.134.0/24	Proofpoint, Inc.	256
148.163.135.0/24	Proofpoint, Inc.	256
148.163.144.0/24	Proofpoint, Inc.	256
148.163.145.0/24	Proofpoint, Inc.	256
148.163.146.0/24	Proofpoint, Inc.	256
148.163.147.0/24	Proofpoint, Inc.	256
205.220.160.0/24	Proofpoint, Inc.	256
205.220.161.0/24	Proofpoint, Inc.	256
205.220.162.0/24	Proofpoint, Inc.	256
205.220.163.0/24	Proofpoint, Inc.	256
205.220.164.0/24	Proofpoint, Inc.	256
205.220.165.0/24	Proofpoint, Inc.	256
205.220.166.0/24	Proofpoint, Inc.	256
205.220.167.0/24	Proofpoint, Inc.	256
205.220.168.0/24	Proofpoint, Inc.	256
205.220.169.0/24	Proofpoint, Inc.	256
205.220.170.0/24	Proofpoint, Inc.	256
205.220.171.0/24	Proofpoint, Inc.	256
205.220.186.0/24	Proofpoint, Inc.	256
205.220.190.0/24	Proofpoint, Inc.	256
205.220.191.0/24	Proofpoint, Inc.	256
208.56.10.0/24	Meta Networks Inc	256
208.56.11.0/24	Meta Networks Inc	256
208.56.16.0/24	Meta Networks Inc	256
208.56.8.0/24	Meta Networks Inc	256
208.56.9.0/24	Meta Networks Inc	256
208.84.65.0/24	Proofpoint, Inc.	256
208.84.66.0/24	Proofpoint, Inc.	256
208.86.202.0/24	Proofpoint, Inc.	256
208.86.203.0/24	Proofpoint, Inc.	256
66.159.227.0/24	Proofpoint, Inc.	256
66.159.229.0/24	Proofpoint, Inc.	256
66.159.240.0/24	Proofpoint, Inc.	256
66.159.241.0/24	Proofpoint, Inc.	256
67.231.144.0/24	Proofpoint, Inc.	256
67.231.145.0/24	Proofpoint, Inc.	256
67.231.146.0/24	Proofpoint, Inc.	256
67.231.147.0/24	Proofpoint, Inc.	256
67.231.148.0/24	Proofpoint, Inc.	256
67.231.149.0/24	Proofpoint, Inc.	256
67.231.150.0/24	Proofpoint, Inc.	256
67.231.151.0/24	Proofpoint, Inc.	256
67.231.158.0/24	Proofpoint, Inc.	256
67.231.159.0/24	Proofpoint, Inc.	256

Netblock	Company
2620:100:9000::/47	Proofpoint, Inc.
2620:100:900c::/48	Proofpoint, Inc.
2620:100:900d::/48	Proofpoint, Inc.

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WHOIS Details

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                                                ASHandle:       AS26211
                                                OrgID:          AS26211
                                                ASName:         AS26211
                                                ASNumber:       AS26211
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 35 domain names hosted across 45 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
208.86.202.231	█████████	4
67.231.145.240	██████████	3
148.163.156.77	██████████	2
205.220.161.244	██████████	2
208.86.202.230	██████████	2
148.163.156.9	██████████	2
208.86.203.228	██████████	2
148.163.156.80	██████████	2
148.163.156.24	██████████	2
148.163.133.186	██████████	1

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Peers

There are 6 peers for this ASN.

Peers	Name
AS1299	Arelion Sweden AB
AS174	Cogent Communications
AS21949	Beanfield Technologies Inc.
AS32323	Equinix, Inc.
AS3356	Level 3 Parent, LLC
AS33651	Comcast Cable Communications, LLC

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Upstreams

There are 6 upstreams for this ASN.

upstreams	Name
AS1299	Arelion Sweden AB
AS174	Cogent Communications
AS21949	Beanfield Technologies Inc.
AS32323	Equinix, Inc.
AS3356	Level 3 Parent, LLC
AS33651	Comcast Cable Communications, LLC

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

51 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
205.220.171.245	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
148.163.145.140	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
205.220.160.88	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
2620:100:900d:1:67:231:151:1	AS26211 Proofpoint, Inc.	`1.44ms` from Toronto, CA
148.163.144.215	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
205.220.169.123	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
148.163.151.182	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
208.84.66.101	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
205.220.165.8	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
148.163.146.60	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
66.159.248.50	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
205.220.164.43	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
67.231.145.58	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
205.220.163.151	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
148.163.149.205	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
2620:100:9000::5	AS26211 Proofpoint, Inc.	`0.68ms` from San Jose, US
148.163.133.94	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
148.163.156.219	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
148.163.134.206	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
67.231.158.153	AS26211 Proofpoint, Inc.	`0.80ms` from Toronto, CA
205.220.162.231	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
148.163.132.181	AS26211 Proofpoint, Inc.	`0.73ms` from San Jose, US
148.163.135.240	AS26211 Proofpoint, Inc.	`0.66ms` from San Jose, US
205.220.161.14	AS26211 Proofpoint, Inc.	`0.65ms` from San Jose, US
2620:100:9001:b9::1	AS26211 Proofpoint, Inc.	`0.71ms` from San Jose, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
98.251.37.35	AS7922 Comcast Cable Communications, LLC	`4.94ms` from Atlanta, US
188.93.96.179	AS34762 Combell NV	`0.39ms` from Brussels, BE
3.129.40.179	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
172.110.141.3	AS63333 ONEOK	`0.79ms` from Dallas, US
109.215.193.19	AS3215 Orange S.A.	`11.64ms` from Frankfurt am Main, DE
200.12.221.3	AS32806 MTNSAT Holdings LLC	`5.95ms` from Frankfurt am Main, DE
109.146.122.179	AS2856 British Telecommunications PLC	`2.68ms` from London, GB
79.17.164.51	AS3269 Telecom Italia S.p.A.	`1.93ms` from Milan, IT
188.235.33.195	AS50542 JSC "ER-Telecom Holding"	`8.71ms` from Moscow, RU
86.192.127.211	AS3215 Orange S.A.	`9.43ms` from Paris, FR
162.241.11.227	AS46606 Unified Layer	`1.95ms` from Salt Lake City, US
190.80.204.67	AS6400 Compañía Dominicana de Teléfonos S. A.	`2.73ms` from Santo Domingo, DO
1.97.85.243	AS4766 Korea Telecom	`1.73ms` from Seoul, KR
111.52.28.195	AS9808 China Mobile Communications Group Co., Ltd.	`6.15ms` from Taiyuan, CN
93.86.191.131	AS8400 TELEKOM SRBIJA a.d.	`4.36ms` from Belgrade, RS
3.29.93.211	AS16509 Amazon.com, Inc.	`0.11ms` from Dubai, AE
212.202.149.3	AS20676 Plusnet GmbH	`3.22ms` from Duesseldorf, DE
109.128.4.35	AS5432 Proximus NV	`4.79ms` from Gravelines, FR
208.52.68.3	AS11404 Wave Broadband	`3.04ms` from Hillsboro, US
113.255.113.195	AS9304 HGC Global Communications Limited	`1.53ms` from Hong Kong, HK
220.164.237.115	AS4134 CHINANET-BACKBONE	`8.62ms` from Kunming, CN
148.71.176.131	AS12353 Vodafone Portugal	`12.76ms` from Lisbon, PT
107.4.242.3	AS7922 Comcast Cable Communications, LLC	`3.61ms` from Minneapolis, US
212.3.155.131	AS35125 PJSC Rostelecom. Smolensk branch	`6.67ms` from Moscow, RU
108.58.217.243	AS6128 Cablevision Systems Corp.	`5.09ms` from New York City, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f2 -m7 208.56.8.125

traceroute to 208.56.8.125 (208.56.8.125): 7 hops max, 52 byte packets

2 [AS42831] 78.110.170.193 0.375 ms

3 *

4 [AS3356] 4.69.143.14 140.274 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Coventry, GB

On August 22nd 2025

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS26211 at robtex.

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