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Summary

Country	United States
Domain	cloudflare.com
ASN	AS14789
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CTC15-AP
tech-c:         CTC15-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-09-03
remarks:        [email protected] was validated on 2025-09-03
irt-nfy:        [email protected]
notify:         [email protected]
mnt-by:         MAINT-CLOUDFLARE-AP
last-modified:  2025-11-18T00:27:02Z
source:         APNIC

role:           ABUSE CLOUDFLAREAP
country:        ZZ
address:        Cloudflare, Inc.
address:        101 Townsend Street, San Francisco CA 94107
phone:          +000000000
e-mail:         [email protected]
admin-c:        CTC15-AP
tech-c:         CTC15-AP
nic-hdl:        AC1914-AP
remarks:        Generated from irt object IRT-CLOUDFLARE-AP
remarks:        [email protected] was validated on 2025-09-03
remarks:        [email protected] was validated on 2025-09-03
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-04T17:10:37Z
source:         APNIC

role:           Cloudflare Technical Contact
address:        101 Townsend Street, San Francisco CA 94107
country:        US
phone:          +1-650-319-8930
e-mail:         [email protected]
admin-c:        CTC17-AP
tech-c:         CTC17-AP
nic-hdl:        CTC17-AP
notify:         [email protected]
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:cb00:566::/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

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

IP Address	ASN	Details
2400:cb00:566:1024::ac44:3b4e	AS14789 Cloudflare, Inc.	`1.07ms` from Doha, QA

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
48.223.1.112	AS8075 Microsoft Corporation	`0.41ms` from Boydton, US
220.168.170.176	AS4134 CHINANET-BACKBONE	`7.64ms` from Changsha, CN
99.21.80.144	AS7018 AT&T Enterprises, LLC	`2.58ms` from Dallas, US
80.146.22.96	AS3320 Deutsche Telekom AG	`5.29ms` from Frankfurt am Main, DE
114.221.20.64	AS4134 CHINANET-BACKBONE	`3.41ms` from Nanjing, CN
191.23.22.48	AS26599 TELEFÔNICA BRASIL S.A	`1.91ms` from Novo Hamburgo, BR
89.145.141.224	AS25880 Public joint-stock company "RUTELEKOM"	`4.93ms` from Novosibirsk, RU
18.229.92.80	AS16509 Amazon.com, Inc.	`0.15ms` from Osasco, BR
166.146.137.80	AS6167 Verizon Business	`19.41ms` from Richardson, US
87.69.123.0	AS12400 Partner Communications Ltd.	`1.02ms` from Rosh Ha‘Ayin, IL
115.21.98.80	AS4766 Korea Telecom	`1.18ms` from Seoul, KR
46.195.38.80	AS8434 Telenor Sverige AB	`13.64ms` from Stockholm, SE
171.118.250.80	AS4837 CHINA UNICOM China169 Backbone	`2.29ms` from Taiyuan, CN
99.230.14.16	AS812 Rogers Communications Canada Inc.	`3.26ms` from Toronto, CA
73.183.5.128	AS7922 Comcast Cable Communications, LLC	`12.97ms` from Ashburn, US
2.85.219.208	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`8.71ms` from Athens, GR
43.208.76.32	AS16509 Amazon.com, Inc.	`1.83ms` from Bangkok, TH
84.197.95.208	AS6848 Telenet BV	`8.09ms` from Brussels, BE
190.108.243.128	AS27751 Neunet S.A.	`16.02ms` from Buenos Aires, AR
3.139.0.112	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
34.136.246.48	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
76.185.151.32	AS11427 Charter Communications Inc	`10.49ms` from Dallas, US
47.189.139.224	AS5650 Frontier Communications of America, Inc.	`1.48ms` from Dallas, US
172.170.113.64	AS8075 Microsoft Corporation	`0.18ms` from Des Moines, US
107.5.162.0	AS7922 Comcast Cable Communications, LLC	`8.55ms` from Flint, US

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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