66.159.243.0/24

AS52129 · Proofpoint, Inc.

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Summary

Country	United States
Domain	proofpoint.com
ASN	AS52129
Registry	ARIN
ID	PROOF

WHOIS Details

NetHandle:      NET-66-159-224-0-1
OrgID:          PROOF
Parent:         NET-66-0-0-0-0
NetName:        PROOF
NetRange:       66.159.224.0 - 66.159.255.255
NetType:        allocation
RegDate:        2020-06-23
Updated:        2025-07-03
Source:         ARIN


OrgID:          PROOF
OrgName:        Proofpoint, Inc.
CanAllocate:    
Street:         925 W Maude Ave
City:           Sunnyvale
State/Prov:     CA
Country:        US
PostalCode:     94085
RegDate:        2007-10-16
Updated:        2021-06-15
OrgAdminHandle: NETWO2061-ARIN
OrgTechHandle:  NETWO2061-ARIN
OrgAbuseHandle: PAA19-ARIN
Source:         ARIN


POCHandle:      NETWO2061-ARIN
IsRole:         Y
LastName:       Network Operations
FirstName:      
Street:         925 W Maude Ave
City:           Sunnyvale
State/Prov:     CA
Country:        US
PostalCode:     94085
RegDate:        2007-10-15
Updated:        2025-08-16
OfficePhone:    +1-408-517-4710
OfficePhone:    +1-801-748-4444
Mailbox:        arin-management@proofpoint.com
Source:         ARIN


POCHandle:      PAA19-ARIN
IsRole:         Y
LastName:       Proofpoint ARIN Abuse
FirstName:      
Street:         13997 S Minuteman Dr
City:           Draper
State/Prov:     UT
Country:        US
PostalCode:     84020
RegDate:        2014-09-08
Updated:        2024-06-13
OfficePhone:    +1-801-748-4494
Mailbox:        abuse@proofpoint.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.159.0.0/16

Range	ASN	Company	Num of IPs
66.159.128.0/18	AS7018	AT&T Enterprises, LLC	16,384
66.159.64.0/19	AS17054	Expedient	8,192
66.159.192.0/19	AS394089	Palo Alto Networks, Inc	8,192
66.159.48.0/20	AS12028	MM Internet, Inc.	4,096
66.159.112.0/20	AS5690	Vianet Inc.	4,096
66.159.108.0/22	AS55053	2267921 ONTARIO LTD	1,024
66.159.254.0/24	AS52129	Proofpoint, Inc.	256
66.159.255.0/24	AS52129	Proofpoint, Inc.	256

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
66.159.243.161	novacyt.co.uk	2

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
66.159.243.128	AS52129 Proofpoint, Inc.	`0.27ms` from Amsterdam, NL

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
132.234.3.8	AS7575 Australian Academic and Research Network (AARNet)	`12.81ms` from Brisbane, AU
121.199.171.136	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.04ms` from Hangzhou, CN
156.230.116.40	AS136907 HUAWEI CLOUDS	`1.07ms` from Hong Kong, HK
76.82.141.248	AS20001 Charter Communications Inc	`5.05ms` from Los Angeles, US
34.157.172.184	AS396982 Google LLC	`0.09ms` from Madrid, ES
95.248.40.24	AS3269 Telecom Italia S.p.A.	`0.87ms` from Milan, IT
60.188.58.136	AS58461 CT-HangZhou-IDC	`6.06ms` from Ningbo, CN
176.146.157.248	AS5410 Bouygues Telecom SA	`3.04ms` from Paris, FR
38.60.204.120	AS138915 Kaopu Cloud HK Limited	`0.24ms` from San Jose, US
180.227.207.168	AS17858 LG POWERCOMM	`2.23ms` from Seoul, KR
120.159.10.8	AS135887 Belong (Telstra Limited)	`2.11ms` from Sydney, AU
46.49.21.136	AS16010 Magticom Ltd.	`0.55ms` from Tbilisi, GE
182.168.59.248	AS2527 Sony Network Communications Inc.	`11.78ms` from Tokyo, JP
216.185.23.8	AS22925 Allied Telecom Group, LLC	`1.33ms` from Ashburn, US
113.47.12.40	AS55990 Huawei Cloud Service data center	`3.85ms` from Beijing, CN
91.5.251.120	AS3320 Deutsche Telekom AG	`1.71ms` from Berlin, DE
216.196.214.216	AS6181 Cincinnati Bell Telephone Company LLC	`1.42ms` from Cincinnati, US
34.133.66.184	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
86.43.195.168	AS5466 Eircom Limited	`5.40ms` from Dublin, IE
93.209.197.168	AS3320 Deutsche Telekom AG	`2.08ms` from Frankfurt am Main, DE
203.230.197.152	AS18329 Sangmyung University	`4.65ms` from Incheon, KR
83.51.107.56	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.53ms` from Madrid, ES
167.99.60.216	AS14061 DigitalOcean, LLC	`0.40ms` from New York City, US
93.26.14.104	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`1.12ms` from Paris, FR
101.32.166.248	AS132203 Tencent Building, Kejizhongyi Avenue	`0.63ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f4 66.159.243.77

traceroute to 66.159.243.77 (66.159.243.77): 64 hops max, 52 byte packets

4 [AS6939] 184.104.224.249 0.58 ms

5 [AS52129] 66.159.243.77 0.304 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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