66.159.255.0/24

AS52129 · Proofpoint, Inc.

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Summary

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

WHOIS Details

NetHandle:      NET-66-159-255-0-1
OrgID:          C00779961
Parent:         NET-66-159-224-0-1
NetName:        PROOF
NetRange:       66.159.255.0 - 66.159.255.255
NetType:        reassignment
RegDate:        2004-03-04
Updated:        2025-02-13
Source:         ARIN


OrgID:          C00779961
OrgName:        Proofpoint, Inc.
CanAllocate:    
Street:         925 W Maude Ave
City:           Sunnyvale
State/Prov:     CA
Country:        US
PostalCode:     94085
RegDate:        2004-03-04
Updated:        2025-02-13
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

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
66.159.255.31	AS52129 Proofpoint, Inc.	`0.33ms` from Dubai, AE

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
174.140.82.168	AS11776 Breezeline	`17.11ms` from Ashburn, US
98.91.159.136	AS14618 Amazon.com, Inc.	`0.55ms` from Ashburn, US
125.32.88.104	AS4837 CHINA UNICOM China169 Backbone	`3.19ms` from Changchun, CN
78.135.45.56	AS43242 ARINET SECURITY & INTERNET CONSULTANCY LTD	`11.55ms` from Denizli, TR
73.26.4.56	AS7922 Comcast Cable Communications, LLC	`9.14ms` from Denver, US
69.151.31.8	AS7018 AT&T Enterprises, LLC	`5.82ms` from Kansas City, US
23.124.192.200	AS7018 AT&T Enterprises, LLC	`2.45ms` from Los Angeles, US
158.110.166.200	AS137 Consortium GARR	`5.53ms` from Milan, IT
34.7.147.56	AS396982 Google LLC	`0.11ms` from Oudeschip, NL
13.124.201.56	AS16509 Amazon.com, Inc.	`0.33ms` from Seoul, KR
85.187.246.216	AS41280 SKYNET BULGARIA Ltd.	`0.79ms` from Sofia, BG
203.183.171.72	AS4694 IDC Frontier Inc.	`0.64ms` from Tokyo, JP
153.138.210.8	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.48ms` from Tokyo, JP
3.223.100.8	AS14618 Amazon.com, Inc.	`0.56ms` from Ashburn, US
173.191.218.232	AS7029 Windstream Communications LLC	`14.94ms` from Chicago, US
136.113.253.72	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
45.233.28.8	AS267290 Mais Link	`12.32ms` from Fortaleza, BR
81.156.14.88	AS2856 British Telecommunications PLC	`4.37ms` from London, GB
82.185.140.72	AS3269 Telecom Italia S.p.A.	`5.30ms` from Milan, IT
179.93.98.184	AS26599 TELEFÔNICA BRASIL S.A	`3.35ms` from Osasco, BR
90.17.110.72	AS3215 Orange S.A.	`5.85ms` from Paris, FR
188.112.137.72	AS20910 SIA "BITE Latvija"	`0.51ms` from Riga, LV
186.20.112.216	AS6535 Telmex Servicios Empresariales S.A.	`2.06ms` from Santiago, CL
190.166.124.24	AS6400 Compañía Dominicana de Teléfonos S. A.	`1.32ms` from Santo Domingo, DO
106.13.175.120	AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.	`6.92ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -f3 66.159.255.26

traceroute to 66.159.255.26 (66.159.255.26): 64 hops max, 52 byte packets

3 [] 185.1.8.61 0.411 ms

4 *

5 *

6 [AS21859] 23.90.173.130 0.568 ms

7 [AS52129] 66.159.255.26 0.412 ms

Measurement taken from

IPinfo ProbeNet in Dubai, AE

On December 28th 2025

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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