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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:cb00:54::/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

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

IP Address	ASN	Details
2400:cb00:54:1024::a29e:858	AS13335 Cloudflare, Inc.	`69.18ms` from Az Za`ayin, 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
24.34.52.96	AS7922 Comcast Cable Communications, LLC	`9.17ms` from Boston, US
186.19.29.32	AS27747 Telecentro S.A.	`5.15ms` from Buenos Aires, AR
43.118.5.0	AS45102 Alibaba (US) Technology Co., Ltd.	`14.44ms` from Frankfurt am Main, DE
14.230.2.0	AS45899 VNPT Corp	`2.53ms` from Ho Chi Minh City, VN
182.228.192.144	AS17858 LG POWERCOMM	`2.24ms` from Incheon, KR
125.147.113.96	AS4766 Korea Telecom	`1.91ms` from Incheon, KR
95.255.68.208	AS3269 Telecom Italia S.p.A.	`5.77ms` from Milan, IT
14.12.28.192	AS2516 KDDI CORPORATION	`12.59ms` from Osaka, JP
190.35.78.48	AS11556 Cable & Wireless Panama	`1.71ms` from Panama, PA
114.201.36.240	AS9318 SK Broadband Co Ltd	`2.46ms` from Seoul, KR
111.217.127.16	AS2527 Sony Network Communications Inc.	`1.70ms` from Tokyo, JP
62.46.10.208	AS8447 A1 Telekom Austria AG	`4.69ms` from Vienna, AT
15.205.6.160	AS8987 Amazon Data Services Ireland Ltd	`0.44ms` from Boardman, US
197.147.37.0	AS36884 Wana Corporate	`9.53ms` from Casablanca, MA
217.234.130.240	AS3320 Deutsche Telekom AG	`7.07ms` from Frankfurt am Main, DE
153.72.164.192	AS396982 Google LLC	`1.18ms` from Frankfurt am Main, DE
173.212.206.80	AS51167 Contabo GmbH	`0.17ms` from Lauterbourg, FR
81.99.47.224	AS5089 Virgin Media Limited	`5.12ms` from London, GB
4.234.158.80	AS8075 Microsoft Corporation	`0.23ms` from London, GB
153.230.224.144	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.45ms` from Osaka, JP
86.225.190.0	AS3215 Orange S.A.	`8.68ms` from Paris, FR
138.226.108.224	AS46635 Contact Consumers	`0.81ms` from San Jose, US
220.118.93.240	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
78.88.175.0	AS29314 VECTRA S.A.	`12.82ms` from Warsaw, PL
108.67.96.0	AS7018 AT&T Enterprises, LLC	`8.62ms` from Chicago, 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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