Cloudflare, Inc.

ASN AS13335
Allocated 2010-07-14
Registry arin
Related Domain
IP Addresses 1,368,832
Country United States

Whois Details

ASHandle:       AS13335
OrgID:          CLOUD14
ASNumber:       13335
RegDate:        2010-07-14
Comment:        All Cloudflare abuse reporting can be done via
Updated:        2017-02-17
AbuseHandle:    ABUSE2916-ARIN
TechHandle:     ADMIN2521-ARIN
NOCHandle:      NOC11962-ARIN
Source:         ARIN

OrgID:          CLOUD14
OrgName:        Cloudflare, Inc.
Street:         101 Townsend Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94107
Comment:        All Cloudflare abuse reporting can be done via
RegDate:        2010-07-09
Updated:        2017-02-17
OrgAdminHandle: ADMIN2521-ARIN
OrgTechHandle:  ADMIN2521-ARIN
OrgNOCHandle:   NOC11962-ARIN
OrgAbuseHandle: ABUSE2916-ARIN
Source:         ARIN

IP Address Ranges

Netblock Description Num IPs Cloudflare, Inc. 512 Cloudflare, Inc. 256 Cloudflare, Inc. 256 Cloudflare, Inc. 512 Cloudflare, Inc. 1,048,576 Cloudflare, Inc. 4,096 Cloudflare, Inc. 4,096 Cloudflare, Inc. 4,096 Cloudflare, Inc. 4,096 Cloudflare, Inc. 4,096

Show all 556 IP ranges

Netblock Description
2400:cb00:100::/48 Cloudflare, Inc.
2400:cb00:101::/48 Cloudflare, Inc.
2400:cb00:102::/48 Cloudflare, Inc.
2400:cb00:103::/48 Cloudflare, Inc.
2400:cb00:104::/48 Cloudflare, Inc.
2400:cb00:105::/48 Cloudflare, Inc.
2400:cb00:106::/48 Cloudflare, Inc.
2400:cb00:107::/48 Cloudflare, Inc.
2400:cb00:109::/48 Cloudflare, Inc.
2400:cb00:110::/48 Cloudflare, Inc.

Show all 122 IPv6 ranges

Hosted Domain Names

There are 2,284,314 domain names hosted across 83,558 IP addresses on this ASN. To access full domain hosting information with our API contact us for more details.

IP Address Domain Domains on this IP 25,492 23,258 22,973 17,437 16,658 1,391 528 507 506 505 498 483 482 479 458 442 385 373 328 296 293 289 286 286 282 278 275 271 267 266 264 261 258 252 251 250 245 244 243 242 237 234 232 229 228 225 223 223 220 218

Network Speed

We don't currently have any network speed data for this network.

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See the ASN report for United States for more related networks.


Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.

Find out more about AS13335 at robtex.