1. All IP Ranges
  2. 8.0.0.0/8
  3. 8.21.0.0/16
  4. AS13335  | 8.21.10.0/24

8.21.10.0/24

AS13335  ·  Cloudflare, Inc.

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Summary

Country United States
Domain cloudflare.com
ASN AS13335
Registry ARIN
ID LPL-141-CLOUD14-8-21-10

WHOIS Details

NetHandle:      NET-8-21-10-0-1
OrgID:          CLOUD14
Parent:         NET-8-8-9-0-3
NetName:        LPL-141-CLOUD14-8-21-10
NetRange:       8.21.10.0 - 8.21.10.255
NetType:        reassignment
RegDate:        2019-05-21
Updated:        2023-12-28
Source:         ARIN


OrgID:          CLOUD14
OrgName:        Cloudflare, Inc.
CanAllocate:    
Street:         101 Townsend Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94107
RegDate:        2010-07-09
Updated:        2024-11-25
OrgAdminHandle: ADMIN2521-ARIN
OrgTechHandle:  ADMIN2521-ARIN
OrgAbuseHandle: ABUSE2916-ARIN
OrgNOCHandle:   CLOUD146-ARIN
OrgRoutingHandle:   CLOUD146-ARIN
Source:         ARIN


POCHandle:      ADMIN2521-ARIN
IsRole:         Y
LastName:       Admin
FirstName:      
Street:         101 Townsend Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94107
RegDate:        2011-04-19
Updated:        2025-06-12
OfficePhone:    +1-650-319-8930
Mailbox:        rir@cloudflare.com
Source:         ARIN


POCHandle:      ABUSE2916-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         101 Townsend Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94107
RegDate:        2011-02-14
Updated:        2024-09-04
OfficePhone:    +1-650-319-8930
Mailbox:        abuse@cloudflare.com
Source:         ARIN


POCHandle:      CLOUD146-ARIN
IsRole:         Y
LastName:       Cloudflare-NOC
FirstName:      
Street:         101 Townsend St
City:           San Francsico
State/Prov:     CA
Country:        US
PostalCode:     94107
RegDate:        2021-07-01
Updated:        2025-08-20
OfficePhone:    +1-650-319-8930
Mailbox:        noc@cloudflare.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 8.21.0.0/16

Range ASN Company Num of IPs
8.21.68.0/22 AS40526 Gap, Inc. Direct 1,024
8.21.208.0/23 AS23089 Hotwire Communications 512
8.21.220.0/23 AS23089 Hotwire Communications 512
8.21.222.0/23 AS23089 Hotwire Communications 512
8.21.239.0/24 AS13335 Cloudflare, Inc. 256
8.21.8.0/24 AS13335 Cloudflare, Inc. 256
8.21.9.0/24 AS13335 Cloudflare, Inc. 256
8.21.143.0/24 AS136796 Daytona Net Works, Inc. 256
8.21.41.0/24 AS16276 OVH Hosting, Inc. 256
8.21.99.0/24 AS16493 Abercrombie & Fitch 256
8.21.83.0/24 AS20353 Adage Capital Partners, LLC 256
8.21.81.0/24 AS22147 TowardEX Technologies International, Inc. 256
8.21.218.0/24 AS23089 Hotwire Communications 256
8.21.230.0/24 AS23089 Hotwire Communications 256
8.21.51.0/24 AS23304 Rackco.com 256
8.21.164.0/24 AS32308 Contactual, Inc. 256
8.21.234.0/24 AS32746 WBS Connect, LLC 256
8.21.212.0/24 AS33740 TMG Health, Inc 256
8.21.151.0/24 AS393762 Restaurant Supply Chain Solutions, LLC 256
8.21.14.0/24 AS394161 Tesla Motors, Inc. 256
8.21.12.0/24 AS395747 Cloudflare, Inc. 256
8.21.227.0/24 AS396146 Therap Services 256
8.21.98.0/24 AS397336 Virtual Sprout 256
8.21.24.0/24 AS397756 PowerSchool 256
8.21.129.0/24 AS55136 CARLTON FIELDS, P.A. 256
8.21.110.0/24 AS13335 Cloudflare, Inc. 256
8.21.111.0/24 AS13335 Cloudflare, Inc. 256
8.21.13.0/24 AS13335 Cloudflare, Inc. 256

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

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

IP Address ASN Details
8.21.10.2 AS13335 Cloudflare, Inc. 0.49ms from Amsterdam, NL

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
117.50.216.200 AS23724 IDC, China Telecommunications Corporation 6.66ms from Beijing, CN
78.21.68.56 AS6848 Telenet BV 9.70ms from Brussels, BE
123.146.198.56 AS4837 CHINA UNICOM China169 Backbone 1.96ms from Chongqing, CN
34.171.213.40 AS396982 Google LLC 0.13ms from Council Bluffs, US
18.196.162.152 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
84.184.202.88 AS3320 Deutsche Telekom AG 5.13ms from Frankfurt am Main, DE
126.220.154.8 AS17676 SoftBank Corp. 3.70ms from Osaka, JP
189.146.134.184 AS8151 UNINET 4.06ms from Santiago de Queretaro, MX
220.121.192.40 AS4766 Korea Telecom 1.70ms from Seoul, KR
211.112.93.152 AS9976 Namincheon Brodcasting Co., Ltd. 1.57ms from Seoul, KR
183.190.133.152 AS4837 CHINA UNICOM China169 Backbone 7.54ms from Taiyuan, CN
104.27.104.8 AS13335 Cloudflare, Inc. 0.13ms from Yerevan, AM
154.244.252.8 AS36947 Telecom Algeria 10.68ms from Algiers, DZ
188.184.83.88 AS513 CERN - European Organization for Nuclear Research 1.15ms from Geneve, CH
183.143.56.56 AS4134 CHINANET-BACKBONE 7.58ms from Hangzhou, CN
117.90.15.216 AS4134 CHINANET-BACKBONE 5.69ms from Huai'an, CN
96.42.122.88 AS20115 Charter Communications LLC 7.66ms from Minneapolis, US
217.197.195.184 AS20985 ArtX LLC 1.97ms from Moscow, RU
95.79.170.184 AS42682 JSC "ER-Telecom Holding" 6.26ms from Moscow, RU
79.76.22.136 AS54253 Oracle Corporation 2.68ms from Muscat, OM
146.235.47.40 AS31898 Oracle Corporation 0.28ms from Sao Paulo, BR
49.57.146.56 AS4766 Korea Telecom 1.36ms from Seoul, KR
118.210.9.216 AS7545 TPG Telecom Limited 1.14ms from Sydney, AU
177.196.94.216 AS26599 TELEFÔNICA BRASIL S.A 2.97ms from São Paulo, BR
42.225.148.8 AS4837 CHINA UNICOM China169 Backbone 5.92ms from Zhengzhou, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f3 8.21.10.1
traceroute to 8.21.10.1 (8.21.10.1): 64 hops max, 52 byte packets
3 [] 169.150.195.201 9.433 ms
5 [AS13335] 8.21.10.1 0.737 ms
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

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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