209.55.128.0/18

AS22616  ·  ZSCALER, INC.

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

Country United States
Domain zscaler.com
ASN AS22616
Registry ARIN
ID ZSCAL

WHOIS Details

NetHandle:      NET-209-55-128-0-1
OrgID:          ZSCAL
Parent:         NET-209-0-0-0-0
NetName:        ZSCAL
NetRange:       209.55.128.0 - 209.55.223.255
NetType:        allocation
RegDate:        2021-09-21
Updated:        2021-09-21
Source:         ARIN


OrgID:          ZSCAL
OrgName:        ZSCALER, INC.
CanAllocate:    
Street:         120 Holger Way
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
Comment:        Zscaler customer traffic originates from colocation facilities around the world. You should *NOT* use the address or contact information here for the purposes of geolocation. Additionally, because traffic egressing our network may belong to any one of our customers, you should not assume that this traffic belongs to us.
Comment:        For network or security incidents, please reach out to our abuse POC, which is actually monitored and actioned.
RegDate:        2011-03-18
Updated:        2025-11-06
OrgAdminHandle: CHANG452-ARIN
OrgTechHandle:  MMT31-ARIN
OrgTechHandle:  POCTE3-ARIN
OrgAbuseHandle: POCAB2-ARIN
OrgNOCHandle:   POCNO1-ARIN
Source:         ARIN


POCHandle:      CHANG452-ARIN
IsRole:         N
LastName:       Chang
FirstName:      Yulin
Street:         120 Holger Way
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        2025-08-22
Updated:        2025-08-22
OfficePhone:    +1-408-533-0288
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      MMT31-ARIN
IsRole:         N
LastName:       Teng
FirstName:      Michael
Street:         120 Holder Way
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        2023-06-02
Updated:        2025-08-12
OfficePhone:    +1-650-937-9195
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      POCNO1-ARIN
IsRole:         Y
LastName:       poc-noc
FirstName:      
Street:         120 Holger Way Fl 7
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        2014-09-29
Updated:        2024-10-16
OfficePhone:    +1-408-701-0534
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      POCTE3-ARIN
IsRole:         Y
LastName:       poc-tech
FirstName:      
Street:         120 Holger Way Fl 7
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        2014-09-29
Updated:        2024-10-16
OfficePhone:    +1-408-701-0534
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      POCAB2-ARIN
IsRole:         Y
LastName:       poc-abuse
FirstName:      
Street:         120 Holger Way Fl 7
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95134
RegDate:        2014-09-29
Updated:        2024-10-16
OfficePhone:    +1-408-701-0534
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 209.55.128.0/18

Range ASN Company Num of IPs
209.55.191.0/24 AS62044 Zscaler, Inc. 256
209.55.172.0/24 AS62044 Zscaler, Inc. 256
209.55.173.0/24 AS62044 Zscaler, Inc. 256
209.55.186.0/24 AS62044 Zscaler, Inc. 256
209.55.189.0/24 AS62044 Zscaler, Inc. 256
209.55.190.0/24 AS62044 Zscaler, Inc. 256
209.55.132.0/24 AS22616 Zscaler, Inc. 256
209.55.141.0/24 AS22616 Zscaler, Inc. 256
209.55.142.0/24 AS22616 Zscaler, Inc. 256
209.55.145.0/24 AS22616 Zscaler, Inc. 256
209.55.147.0/24 AS22616 Zscaler, Inc. 256
209.55.148.0/24 AS22616 Zscaler, Inc. 256
209.55.149.0/24 AS22616 Zscaler, Inc. 256
209.55.155.0/24 AS22616 Zscaler, Inc. 256
209.55.158.0/24 AS22616 Zscaler, Inc. 256
209.55.159.0/24 AS22616 Zscaler, Inc. 256
209.55.162.0/24 AS22616 Zscaler, Inc. 256
209.55.163.0/24 AS22616 Zscaler, Inc. 256
209.55.174.0/24 AS22616 Zscaler, Inc. 256
209.55.175.0/24 AS22616 Zscaler, Inc. 256
209.55.187.0/24 AS22616 Zscaler, Inc. 256
209.55.188.0/24 AS22616 Zscaler, Inc. 256
209.55.129.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.130.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.133.0/24 AS53813 Zscaler, Inc. 256
209.55.136.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.137.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.140.0/24 AS53813 Zscaler, Inc. 256
209.55.150.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.151.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.157.0/24 AS53813 Zscaler, Inc. 256
209.55.166.0/24 AS53813 Zscaler, Inc. 256
209.55.167.0/24 AS53813 Zscaler, Inc. 256
209.55.182.0/24 AS53813 Zscaler, Inc. 256
209.55.128.0/24 AS62044 Zscaler, Inc. 256
209.55.138.0/24 AS62044 Zscaler, Inc. 256
209.55.139.0/24 AS62044 Zscaler, Inc. 256
209.55.143.0/24 AS62044 Zscaler, Inc. 256
209.55.144.0/24 AS62044 Zscaler, Inc. 256
209.55.152.0/24 AS62044 Zscaler, Inc. 256
209.55.153.0/24 AS62044 Zscaler, Inc. 256
209.55.154.0/24 AS62044 Zscaler, Inc. 256
209.55.156.0/24 AS62044 Zscaler, Inc. 256
209.55.161.0/24 AS62044 Zscaler, Inc. 256

Nearby Ranges

BGP prefixes that overlap with 209.55.0.0/16

Range ASN Company Num of IPs
209.55.64.0/18 AS18618 west central wireless 16,384
209.55.0.0/19 AS10397 Momentum Telecom, Inc. 8,192
209.55.0.0/19 AS25645 Momentum Telecom, Inc. 8,192
209.55.104.0/21 AS16857 Central Texas Telecommunications 2,048
209.55.96.0/21 AS16857 Central Texas Telecommunications 2,048
209.55.72.0/21 AS16857 Central Texas Telecommunications 2,048
209.55.120.0/22 AS16823 Nortex Communications Company 1,024
209.55.64.0/23 AS16857 Central Texas Telecommunications 512
209.55.155.0/24 AS22616 Zscaler, Inc. 256
209.55.158.0/24 AS22616 Zscaler, Inc. 256
209.55.159.0/24 AS22616 Zscaler, Inc. 256
209.55.162.0/24 AS22616 Zscaler, Inc. 256
209.55.163.0/24 AS22616 Zscaler, Inc. 256
209.55.174.0/24 AS22616 Zscaler, Inc. 256
209.55.175.0/24 AS22616 Zscaler, Inc. 256
209.55.187.0/24 AS22616 Zscaler, Inc. 256
209.55.188.0/24 AS22616 Zscaler, Inc. 256
209.55.216.0/24 AS22616 Zscaler, Inc. 256
209.55.217.0/24 AS22616 Zscaler, Inc. 256
209.55.220.0/24 AS22616 Zscaler, Inc. 256
209.55.221.0/24 AS22616 Zscaler, Inc. 256
209.55.129.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.130.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.133.0/24 AS53813 Zscaler, Inc. 256
209.55.136.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.137.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.140.0/24 AS53813 Zscaler, Inc. 256
209.55.150.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.151.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.157.0/24 AS53813 Zscaler, Inc. 256
209.55.166.0/24 AS53813 Zscaler, Inc. 256
209.55.167.0/24 AS53813 Zscaler, Inc. 256
209.55.182.0/24 AS53813 Zscaler, Inc. 256
209.55.202.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.203.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.204.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.205.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.211.0/24 AS53813 Zscaler, Inc. 256
209.55.212.0/24 AS53813 Zscaler, Inc. 256
209.55.128.0/24 AS62044 Zscaler, Inc. 256
209.55.138.0/24 AS62044 Zscaler, Inc. 256
209.55.139.0/24 AS62044 Zscaler, Inc. 256
209.55.143.0/24 AS62044 Zscaler, Inc. 256
209.55.144.0/24 AS62044 Zscaler, Inc. 256
209.55.152.0/24 AS62044 Zscaler, Inc. 256
209.55.153.0/24 AS62044 Zscaler, Inc. 256
209.55.154.0/24 AS62044 Zscaler, Inc. 256
209.55.156.0/24 AS62044 Zscaler, Inc. 256
209.55.161.0/24 AS62044 Zscaler, Inc. 256
209.55.172.0/24 AS62044 Zscaler, 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

Pingable IPs

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

IP Address ASN Details
209.55.187.131 AS22616 ZSCALER, INC. 0.50ms from Atlanta, US
209.55.145.1 AS22616 ZSCALER, INC. 1.05ms from San Jose, US
209.55.156.1 AS62044 Zscaler Switzerland GmbH 0.16ms from Amsterdam, NL
209.55.188.212 AS22616 ZSCALER, INC. 0.64ms from Atlanta, 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
211.100.192.82 AS4808 China Unicom Beijing Province Network 3.43ms from Beijing, CN
45.243.255.162 AS24863 Link Egypt (Link.NET) 17.89ms from Cairo, EG
24.119.13.114 AS11492 CABLE ONE, INC. 2.35ms from Dallas, US
95.208.71.226 AS3209 Vodafone GmbH 9.20ms from Frankfurt am Main, DE
94.63.188.210 AS12353 Vodafone Portugal 2.46ms from Lisbon, PT
90.250.85.210 AS5378 Vodafone Limited 4.83ms from London, GB
99.62.186.178 AS7018 AT&T Enterprises, LLC 2.68ms from Miami, US
73.57.168.82 AS7922 Comcast Cable Communications, LLC 4.46ms from Miami, US
16.52.47.50 AS16509 Amazon.com, Inc. 0.18ms from Montreal, CA
90.54.66.130 AS3215 Orange S.A. 16.00ms from Paris, FR
185.218.92.50 AS28725 CETIN a.s. 5.35ms from Prague, CZ
189.69.154.178 AS27699 TELEFÔNICA BRASIL S.A 4.74ms from Sao Paulo, BR
182.219.233.66 AS17858 LG POWERCOMM 1.96ms from Seoul, KR
114.216.27.98 AS140292 CHINATELECOM Jiangsu province Suzhou 5G network 6.59ms from Shanghai, CN
150.246.82.162 AS2527 Sony Network Communications Inc. 2.33ms from Tokyo, JP
85.148.88.194 AS5390 EuroNet 1.23ms from Amsterdam, NL
4.180.234.162 AS8075 Microsoft Corporation 0.31ms from Amsterdam, NL
217.130.155.178 AS12430 VODAFONE ESPANA S.A.U. 1.41ms from Barcelona, ES
52.42.186.50 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
54.184.145.2 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
23.129.216.2 AS400305 MSD of Mt. Vernon 11.16ms from Chicago, US
92.114.157.242 AS8926 Moldtelecom SA 0.76ms from Chisinau, MD
136.49.128.2 AS16591 Google Fiber Inc. 4.79ms from Dallas, US
172.84.114.50 AS19740 Sudjam, LLC 0.18ms from Dallas, US
75.89.84.2 AS7029 Windstream Communications LLC 7.14ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -m5 209.55.191.46
traceroute to 209.55.191.46 (209.55.191.46): 5 hops max, 52 byte packets
2 [AS42473] 94.16.125.33 0.304 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Manchester, GB
On

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs