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Summary

Country	United States
Domain	cloudflare.com
ASN	AS13335
Registry	APNIC
ID	CLOUDFLARE_2400_CB00_0000_36

WHOIS Details

inet6num:       2400:cb00::/36
netname:        CLOUDFLARE_2400_CB00_0000_36
descr:          Cloudflare, Inc.
descr:          101 Townsend Street, San Francisco CA 94107
country:        US
admin-c:        CTC17-AP
tech-c:         CTC17-AP
abuse-c:        AC1914-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-CLOUDFLARE-AP
mnt-irt:        IRT-CLOUDFLARE-AP
last-modified:  2021-01-13T23:48:10Z
source:         APNIC

irt:            IRT-CLOUDFLARE-AP
address:        Cloudflare, Inc.
address:        101 Townsend Street, San Francisco CA 94107
e-mail:         rir@cloudflare.com
abuse-mailbox:  abuse@cloudflare.com
admin-c:        CTC15-AP
tech-c:         CTC15-AP
auth:           # Filtered
remarks:        rir@cloudflare.com was validated on 2026-03-25
remarks:        abuse@cloudflare.com was validated on 2026-04-10
irt-nfy:        rir@cloudflare.com
notify:         rir@cloudflare.com
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2026-04-10T14:53:05Z
source:         APNIC

role:           ABUSE CLOUDFLAREAP
country:        ZZ
address:        Cloudflare, Inc.
address:        101 Townsend Street, San Francisco CA 94107
phone:          +000000000
e-mail:         rir@cloudflare.com
admin-c:        CTC15-AP
tech-c:         CTC15-AP
nic-hdl:        AC1914-AP
remarks:        Generated from irt object IRT-CLOUDFLARE-AP
remarks:        rir@cloudflare.com was validated on 2026-03-25
remarks:        abuse@cloudflare.com was validated on 2026-04-10
abuse-mailbox:  abuse@cloudflare.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-04-10T14:53:29Z
source:         APNIC

role:           Cloudflare Technical Contact
address:        101 Townsend Street, San Francisco CA 94107
country:        US
phone:          +1-650-319-8930
e-mail:         rir@cloudflare.com
admin-c:        CTC17-AP
tech-c:         CTC17-AP
nic-hdl:        CTC17-AP
notify:         rir@cloudflare.com
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2017-09-07T21:57:11Z
source:         APNIC

route6:         2400:cb00::/36
origin:         AS13335
descr:          Cloudflare, Inc. 101 Townsend Street
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2020-06-10T00:00:34Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 2400:cb00:38::/48

No nearby ranges found.

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

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

IP Address	ASN	Details
2400:cb00:38:1024::8d65:6464	AS13335 Cloudflare, Inc.	`0.46ms` from Valparaiso, CL

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
34.222.146.176	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
54.244.83.192	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
3.32.90.48	AS8987 Amazon Data Services Ireland Ltd	`0.36ms` from Boardman, US
213.119.180.16	AS6848 Telenet BV	`6.65ms` from Brussels, BE
172.7.46.208	AS7018 AT&T Enterprises, LLC	`9.33ms` from Chicago, US
24.12.87.0	AS7922 Comcast Cable Communications, LLC	`5.41ms` from Chicago, US
174.96.175.48	AS10796 Charter Communications Inc	`10.23ms` from Columbus, US
80.132.15.16	AS3320 Deutsche Telekom AG	`5.54ms` from Frankfurt am Main, DE
62.169.152.0	AS51202 NUXOA GmbH	`0.46ms` from Frankfurt am Main, DE
45.152.22.64	AS57043 HOSTKEY B.V.	`0.34ms` from Frankfurt am Main, DE
87.92.57.192	AS16086 DNA Oyj	`0.90ms` from Helsinki, FI
79.4.155.0	AS3269 Telecom Italia S.p.A.	`2.95ms` from Milan, IT
222.228.147.96	AS2519 ARTERIA Networks Corporation	`4.36ms` from Osaka, JP
124.98.135.16	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.10ms` from Osaka, JP
184.167.193.224	AS33588 Charter Communications LLC	`13.37ms` from Seattle, US
136.118.67.112	AS396982 Google LLC	`0.14ms` from The Dalles, US
211.68.11.48	AS4538 China Education and Research Network Center	`2.27ms` from Beijing, CN
110.230.97.16	AS4837 CHINA UNICOM China169 Backbone	`10.29ms` from Beijing, CN
196.115.159.208	AS36925 MEDITELECOM	`9.57ms` from Casablanca, MA
173.94.129.112	AS11426 Charter Communications Inc	`13.58ms` from Charlotte, US
41.139.220.208	AS37061 Safaricom Limited	`1.97ms` from Mombasa, KE
104.42.230.32	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
20.109.94.80	AS8075 Microsoft Corporation	`0.29ms` from Boydton, US
34.53.129.112	AS396982 Google LLC	`0.18ms` from Brussels, BE
14.228.72.224	AS45899 VNPT Corp	`5.58ms` from Hanoi, VN

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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