1. All IP Ranges
  2. 209.0.0.0/8
  3. 209.55.0.0/16
  4. AS22616  | 209.55.183.0/24

209.55.183.0/24

AS22616  ·  ZSCALER, INC.

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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

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
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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
20.16.221.24 AS8075 Microsoft Corporation 0.30ms from Amsterdam, NL
98.192.75.216 AS7922 Comcast Cable Communications, LLC 1.40ms from Atlanta, US
218.246.95.232 AS18239 CAPNET 2.38ms from Beijing, CN
120.211.138.152 AS24547 Hebei Mobile Communication Company Limited 9.48ms from Beijing, CN
76.240.126.184 AS7018 AT&T Enterprises, LLC 8.98ms from Dallas, US
39.104.87.56 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.13ms from Hohhot, CN
16.162.106.72 AS16509 Amazon.com, Inc. 0.32ms from Hong Kong, HK
47.75.20.24 AS45102 Alibaba (US) Technology Co., Ltd. 0.34ms from Hong Kong, HK
18.134.30.104 AS16509 Amazon.com, Inc. 0.53ms from London, GB
46.37.49.184 AS51918 Cerberus Networks Ltd 2.26ms from London, GB
79.21.51.120 AS3269 Telecom Italia S.p.A. 5.19ms from Milan, IT
198.160.253.200 AS11272 C Spire Fiber 7.67ms from New Orleans, US
88.127.44.152 AS12322 Free SAS 11.54ms from Paris, FR
50.29.227.40 AS3737 PenTeleData Inc. 11.36ms from Secaucus, US
222.98.214.232 AS4766 Korea Telecom 1.97ms from Seoul, KR
223.11.75.232 AS4134 CHINANET-BACKBONE 0.58ms from Taiyuan, CN
146.59.75.136 AS16276 OVH SAS 0.12ms from Warsaw, PL
154.180.6.216 AS8452 TE-AS 7.31ms from Cairo, EG
119.50.15.152 AS4837 CHINA UNICOM China169 Backbone 9.87ms from Changchun, CN
119.156.106.40 AS17557 Pakistan Telecommunication Company Limited 2.71ms from Lahore, PK
80.182.18.56 AS3269 Telecom Italia S.p.A. 2.64ms from Milan, IT
116.253.202.120 AS4134 CHINANET-BACKBONE 4.70ms from Nanning, CN
62.210.232.152 AS12876 SCALEWAY S.A.S. 0.44ms from Paris, FR
119.186.4.72 AS4837 CHINA UNICOM China169 Backbone 7.32ms from Qingdao, CN
183.102.251.40 AS4766 Korea Telecom 1.78ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -m5 209.55.183.251
traceroute to 209.55.183.251 (209.55.183.251): 5 hops max, 52 byte packets
2 [AS3356] 4.7.247.122 0.442 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Phoenix, US
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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