AS52129 Proofpoint, Inc. details

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AS52129 – Proofpoint, Inc.

Field	Value
Country	United States
Website	proofpoint.com
Hosted domains	16
Number of IPv4	10,496
Number of IPv6	38,685,626,227,668,133,590,597,632
ASN type	Hosting
Registry	ripe
Allocated	15 years ago on Jan 05, 2011
Updated	10 months ago on Dec 17, 2024

Netblock	Company	Num of IPs
185.132.180.0/22	Proofpoint Limited	1,024
185.183.28.0/22	Proofpoint, Inc.	1,024
91.207.212.0/23	Proofpoint, Inc.	512
66.159.224.0/24	Proofpoint, Inc.	256
66.159.225.0/24	Proofpoint, Inc.	256
66.159.232.0/24	Proofpoint, Inc.	256
66.159.233.0/24	Proofpoint, Inc.	256
66.159.234.0/24	Proofpoint, Inc.	256
66.159.235.0/24	IPC Zone	256
66.159.236.0/24	Proofpoint, Inc	256
66.159.237.0/24	Proofpoint, Inc	256
66.159.243.0/24	Proofpoint, Inc.	256
66.159.244.0/24	Proofpoint, Inc.	256
66.159.245.0/24	Proofpoint, Inc.	256
66.159.246.0/24	Proofpoint, Inc.	256
66.159.247.0/24	Proofpoint, Inc.	256
66.159.252.0/24	Proofpoint, Inc.	256
66.159.253.0/24	Proofpoint, Inc.	256
66.159.254.0/24	Proofpoint, Inc.	256
66.159.255.0/24	Proofpoint, Inc.	256
91.209.104.0/24	Proofpoint, Inc.	256
143.55.144.0/24	Proofpoint, Inc.	256
143.55.145.0/24	Proofpoint, Inc.	256
143.55.146.0/24	Proofpoint, Inc.	256
143.55.147.0/24	Proofpoint, Inc.	256
143.55.148.0/24	Proofpoint, Inc.	256
143.55.149.0/24	Proofpoint, Inc.	256
143.55.150.0/24	Proofpoint, Inc.	256
185.132.180.0/24	Proofpoint Limited	256
185.132.181.0/24	Proofpoint Limited	256
185.132.182.0/24	Proofpoint Limited	256
185.132.183.0/24	Proofpoint Limited	256
185.183.28.0/24	Proofpoint, Inc.	256
185.183.29.0/24	Proofpoint, Inc.	256
185.183.30.0/24	Proofpoint, Inc.	256
185.183.31.0/24	Proofpoint, Inc.	256
205.220.184.0/24	Proofpoint, Inc.	256
205.220.185.0/24	Proofpoint, Inc.	256
208.56.0.0/24	Meta Networks Inc	256
208.56.17.0/24	Meta Networks Inc	256
208.84.64.0/24	Proofpoint, Inc.	256
208.86.200.0/24	Proofpoint, Inc.	256

Netblock	Company
2a0a:2b00::/44	Proofpoint Limited
2a0a:2b00:10::/44	Proofpoint Limited

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WHOIS Details

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                                                ASHandle:       AS52129
                                                OrgID:          AS52129
                                                ASName:         AS52129
                                                ASNumber:       AS52129
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 16 domain names hosted across 13 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
91.209.104.155	██████████	2
66.159.234.202	██████████	2
66.159.224.224	█████████	2
185.132.182.251	██████████	1
143.55.146.62	██████████	1
66.159.224.161	██████████	1
66.159.232.179	██████████	1
91.207.212.150	████████	1
66.159.253.219	██████████	1
66.159.237.170	██████████	1

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Peers

There are 7 peers for this ASN.

Peers	Name
AS1299	Arelion Sweden AB
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS174	Cogent Communications, LLC
AS21859	Zenlayer Inc
AS54825	Packet Host, Inc.
AS6939	Hurricane Electric LLC
AS9583	Sify Limited

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Upstreams

There are 6 upstreams for this ASN.

upstreams	Name
AS1299	Arelion Sweden AB
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS174	Cogent Communications, LLC
AS21859	Zenlayer Inc
AS6939	Hurricane Electric LLC
AS9583	Sify Limited

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address	ASN	Details
185.132.180.34	AS52129 Proofpoint, Inc.	`0.37ms` from Frankfurt am Main, DE
185.132.182.76	AS52129 Proofpoint, Inc.	`0.38ms` from Frankfurt am Main, DE
143.55.144.155	AS52129 Proofpoint, Inc.	`0.38ms` from Frankfurt am Main, DE
143.55.148.205	AS52129 Proofpoint, Inc.	`0.23ms` from Amsterdam, NL
185.183.28.235	AS52129 Proofpoint, Inc.	`0.23ms` from Amsterdam, NL
66.159.225.6	AS52129 Proofpoint, Inc.	`0.92ms` from Singapore, SG
66.159.255.13	AS52129 Proofpoint, Inc.	`0.38ms` from Dubai, AE
66.159.233.86	AS52129 Proofpoint, Inc.	`0.38ms` from Frankfurt am Main, DE
66.159.236.39	AS52129 Proofpoint, Inc.	`0.35ms` from Sydney, AU
66.159.243.73	AS52129 Proofpoint, Inc.	`0.21ms` from Amsterdam, NL
2a0a:2b00::1	AS52129 Proofpoint, Inc.	`0.70ms` from Amsterdam, NL
2a0a:2b00:1:0:185:183:28:99	AS52129 Proofpoint, Inc.	`0.48ms` from Amsterdam, NL
143.55.146.96	AS52129 Proofpoint, Inc.	`0.37ms` from Frankfurt am Main, DE
66.159.235.11	AS52129 Proofpoint, Inc.	`0.37ms` from Frankfurt am Main, DE
185.132.183.116	AS52129 Proofpoint, Inc.	`0.38ms` from Frankfurt am Main, DE
185.132.181.239	AS52129 Proofpoint, Inc.	`0.38ms` from Frankfurt am Main, DE
66.159.237.39	AS52129 Proofpoint, Inc.	`0.44ms` from Melbourne, AU
66.159.224.16	AS52129 Proofpoint, Inc.	`0.35ms` from Singapore, SG
66.159.254.11	AS52129 Proofpoint, Inc.	`0.32ms` from Al Fujairah City, AE
208.84.64.129	AS52129 Proofpoint, Inc.	`0.44ms` from Frankfurt am Main, DE
91.207.212.245	AS52129 Proofpoint, Inc.	`0.24ms` from Amsterdam, NL
91.209.104.45	AS52129 Proofpoint, Inc.	`0.23ms` from Amsterdam, NL
66.159.252.5	AS52129 Proofpoint, Inc.	`0.39ms` from Riyadh, SA
143.55.149.140	AS52129 Proofpoint, Inc.	`0.23ms` from Amsterdam, NL
143.55.145.229	AS52129 Proofpoint, Inc.	`0.37ms` from Frankfurt am Main, DE

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
62.194.42.1	AS33915 Vodafone Libertel B.V.	`1.20ms` from Amsterdam, NL
92.109.97.1	AS33915 Vodafone Libertel B.V.	`4.33ms` from Amsterdam, NL
129.66.140.49	AS3464 Alabama Supercomputer Authority	`3.45ms` from Atlanta, US
71.229.8.1	AS7922 Comcast Cable Communications, LLC	`6.13ms` from Atlanta, US
58.18.132.161	AS4837 CHINA UNICOM China169 Backbone	`19.35ms` from Beijing, CN
117.252.89.1	AS9829 National Internet Backbone	`11.35ms` from Bengaluru, IN
191.104.227.17	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`19.41ms` from Bogota, CO
24.63.196.1	AS7922 Comcast Cable Communications, LLC	`1.42ms` from Boston, US
84.195.142.113	AS6848 Telenet BV	`6.95ms` from Brussels, BE
138.122.159.225	AS263786 COOP. ELECTRICA DE CHACABUCO LTDA.	`7.97ms` from Buenos Aires, AR
181.47.140.1	AS27747 Telecentro S.A.	`0.61ms` from Buenos Aires, AR
110.225.128.1	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.42ms` from Chennai, IN
117.232.248.17	AS9829 National Internet Backbone	`7.53ms` from Chennai, IN
65.26.192.1	AS10796 Charter Communications Inc	`4.43ms` from Chicago, US
3.144.169.33	AS16509 Amazon.com, Inc.	`0.66ms` from Columbus, US
184.81.101.113	AS7029 Windstream Communications LLC	`0.51ms` from Dallas, US
207.86.126.65	AS2828 Verizon Business	`1.64ms` from Denver, US
27.147.130.225	AS23688 Link3 Technologies Ltd.	`0.40ms` from Dhaka, BD
86.41.96.1	AS5466 Eircom Limited	`1.12ms` from Dublin, IE
174.3.156.1	AS6327 Shaw Communications Inc.	`1.17ms` from Edmonton, CA
88.215.222.49	AS8520 SITS Deutschland GmbH	`0.59ms` from Frankfurt am Main, DE
59.56.181.33	AS4134 CHINANET-BACKBONE	`2.76ms` from Fuzhou, CN
187.244.242.1	AS13999 Mega Cable, S.A. de C.V.	`18.34ms` from Guadalajara, MX
95.10.83.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`12.96ms` from Izmir, TR
197.89.187.1	AS20011 Dimension Data	`1.06ms` from Johannesburg, ZA

Traceroute

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

traceroute -a -n -q1 -f2 66.159.236.29

traceroute to 66.159.236.29 (66.159.236.29): 64 hops max, 52 byte packets

2 [AS9290] 103.11.144.2 0.137 ms

3 *

4 *

5 *

6 *

7 *

8 *

9 *

10 *

11 [AS52129] 66.159.236.29 5.361 ms

Measurement taken from

IPinfo ProbeNet in Canberra, AU

On October 17th 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 AS52129 at robtex.

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