1. All IP Ranges
  2. 209.0.0.0/8
  3. 209.55.0.0/16
  4. AS53813  | 209.55.170.0/24

209.55.170.0/24

AS53813  ·  ZSCALER, INC.

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Summary

Country United States
Domain zscaler.com
ASN AS53813
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:      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:        mteng@zscaler.com
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:        poc-abuse@zscaler.com
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:        ychang@zscaler.com
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:        poc-tech@zscaler.com
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:        poc-noc@zscaler.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 209.55.0.0/16

Range ASN Company Num of IPs
209.55.0.0/19 AS25645 Momentum Telecom, Inc. 8,192
209.55.0.0/19 AS10397 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
209.55.149.0/24 AS22616 Zscaler, Inc. 256
209.55.217.0/24 AS22616 Zscaler, Inc. 256
209.55.159.0/24 AS22616 Zscaler, Inc. 256
209.55.141.0/24 AS22616 Zscaler, Inc. 256
209.55.187.0/24 AS22616 Zscaler, Inc. 256
209.55.216.0/24 AS22616 Zscaler, Inc. 256
209.55.148.0/24 AS22616 Zscaler, Inc. 256
209.55.142.0/24 AS22616 Zscaler, Inc. 256
209.55.162.0/24 AS22616 Zscaler, Inc. 256
209.55.174.0/24 AS22616 Zscaler, Inc. 256
209.55.220.0/24 AS22616 Zscaler, Inc. 256
209.55.155.0/24 AS22616 Zscaler, Inc. 256
209.55.163.0/24 AS22616 Zscaler, Inc. 256
209.55.158.0/24 AS22616 Zscaler, Inc. 256
209.55.202.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.151.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.204.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.182.0/24 AS53813 Zscaler, Inc. 256
209.55.166.0/24 AS53813 Zscaler, Inc. 256
209.55.150.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.205.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.136.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.133.0/24 AS53813 Zscaler, Inc. 256
209.55.212.0/24 AS53813 Zscaler, Inc. 256
209.55.157.0/24 AS53813 Zscaler, Inc. 256
209.55.137.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.167.0/24 AS53813 Zscaler, Inc. 256
209.55.203.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.130.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.211.0/24 AS53813 Zscaler, Inc. 256
209.55.129.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.140.0/24 AS53813 Zscaler, Inc. 256
209.55.189.0/24 AS62044 Zscaler, Inc. 256
209.55.156.0/24 AS62044 Zscaler, Inc. 256
209.55.139.0/24 AS62044 Zscaler, Inc. 256
209.55.214.0/24 AS62044 Zscaler, Inc. 256
209.55.154.0/24 AS62044 Zscaler, Inc. 256
209.55.161.0/24 AS62044 Zscaler, Inc. 256
209.55.138.0/24 AS62044 Zscaler, Inc. 256
209.55.152.0/24 AS62044 Zscaler, Inc. 256
209.55.144.0/24 AS62044 Zscaler, Inc. 256
209.55.190.0/24 AS62044 Zscaler, Inc. 256
209.55.215.0/24 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
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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
105.79.121.168 AS36884 Wana Corporate 16.54ms from Casablanca, MA
3.16.140.104 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
80.6.22.40 AS5089 Virgin Media Limited 7.46ms from Erith, GB
194.95.79.120 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 0.76ms from Hamburg, DE
78.136.1.168 AS15395 Rackspace Ltd. 1.28ms from London, GB
95.123.116.24 AS3352 TELEFONICA DE ESPANA S.A.U. 8.73ms from Madrid, ES
138.84.177.24 AS23314 Summit Broadband 5.23ms from Miami, US
88.89.228.88 AS2119 Telenor Norge AS 6.45ms from Oslo, NO
54.157.106.216 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
171.121.9.72 AS4837 CHINA UNICOM China169 Backbone 5.78ms from Taiyuan, CN
126.177.183.232 AS17676 SoftBank Corp. 2.59ms from Tokyo, JP
20.16.129.248 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
75.216.114.8 AS6167 Verizon Business 13.21ms from Boston, US
35.210.160.88 AS15169 Google LLC 0.14ms from Brussels, BE
117.207.101.88 AS9829 National Internet Backbone 11.43ms from Delhi, IN
54.37.6.136 AS16276 OVH SAS 0.08ms from Erith, GB
86.157.64.56 AS2856 British Telecommunications PLC 3.17ms from Erith, GB
109.158.136.120 AS2856 British Telecommunications PLC 5.25ms from London, GB
47.158.126.72 AS5650 Frontier Communications of America, Inc. 3.65ms from Los Angeles, US
52.55.220.136 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
219.150.255.184 AS4134 CHINANET-BACKBONE 6.93ms from Zhengzhou, CN
69.178.89.72 AS8047 GENERAL COMMUNICATION, INC. 12.39ms from Anchorage, US
72.83.66.232 AS701 Verizon Business 2.08ms from Ashburn, US
23.201.107.72 AS20940 Akamai International B.V. 0.20ms from Chennai, IN
74.128.209.72 AS10796 Charter Communications Inc 11.59ms from Columbus, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m7 209.55.170.236
traceroute to 209.55.170.236 (209.55.170.236): 7 hops max, 52 byte packets
4 [AS21928] 100.199.0.93 0.065 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Tieling, CN
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.

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