206208 looking glass

AS53813 ZSCALER, INC. 🇺🇸 US

Announcing 389 prefixes, seen at the RIS collectors.

IPv4 prefixes
358
138,752 (542 × /24)
IPv6 prefixes
31
5,896 × /48
Upstreams
17
transit providers observed
Peers
10
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS53813
Name
ZSCALER, INC.
Organisation
Zscaler AS53813
Country
🇺🇸 US
RIR
ARIN
Allocated
2011-06-03
Network type
Network Services
Scope
Regional
Peering policy
Open
IRR as-set
AS-ZSCALER-GLOBAL
Website
http://www.zscaler.com
PeeringDB
net/8683
Exchanges
30
Facilities
22

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

378 valid (97.2%) 0 invalid (0.0%) 11 no ROA (2.8%)

Whois

Fetched from whois.arin.net

ASNumber:       53813
ASName:         ZSCALER-INC
ASHandle:       AS53813
RegDate:        2011-06-03
Updated:        2013-04-23
Ref:            https://rdap.arin.net/registry/autnum/53813

OrgName:        ZSCALER, INC.
OrgId:          ZSCAL
Address:        120 Holger Way
City:           San Jose
StateProv:      CA
PostalCode:     95134
Country:        US
RegDate:        2011-03-18
Updated:        2025-11-06
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:
Comment:        For network or security incidents, please reach out to our abuse POC, which is actually monitored and actioned.
Ref:            https://rdap.arin.net/registry/entity/ZSCAL

OrgNOCHandle: POCNO1-ARIN
OrgNOCName:   poc-noc
OrgNOCPhone:  +1-408-701-0534
OrgNOCEmail:  poc-noc@zscaler.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/POCNO1-ARIN

OrgTechHandle: MMT31-ARIN
OrgTechName:   Teng, Michael Michael
OrgTechPhone:  +1-650-937-9195
OrgTechEmail:  mteng@zscaler.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MMT31-ARIN

OrgTechHandle: POCTE3-ARIN
OrgTechName:   poc-tech
OrgTechPhone:  +1-408-701-0534
OrgTechEmail:  poc-tech@zscaler.com
OrgTechRef:    https://rdap.arin.net/registry/entity/POCTE3-ARIN

OrgAbuseHandle: POCAB2-ARIN
OrgAbuseName:   poc-abuse
OrgAbusePhone:  +1-408-701-0534
OrgAbuseEmail:  poc-abuse@zscaler.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/POCAB2-ARIN