1. All IP Ranges
  2. 172.0.0.0/8
  3. 172.66.0.0/16
  4. AS13335  | 172.66.208.0/21

172.66.208.0/21

AS13335  ·  Cloudflare, Inc.

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Summary

Country United States
Domain cloudflare.com
ASN AS13335
Registry ARIN
ID CLOUDFLARENET

WHOIS Details

NetHandle:      NET-172-64-0-0-1
OrgID:          CLOUD14
Parent:         NET-172-0-0-0-0
NetName:        CLOUDFLARENET
NetRange:       172.64.0.0 - 172.71.255.255
NetType:        allocation
Comment:        All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Comment:        Geofeed: https://api.cloudflare.com/local-ip-ranges.csv
RegDate:        2015-02-25
Updated:        2024-09-04
TechHandle:     ADMIN2521-ARIN
AbuseHandle:    ABUSE2916-ARIN
NOCHandle:      NOC11962-ARIN
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:      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:      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:      NOC11962-ARIN
IsRole:         Y
LastName:       NOC
FirstName:      
Street:         101 Townsend Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94107
RegDate:        2011-04-19
Updated:        2025-03-12
OfficePhone:    +1-650-319-8930
Mailbox:        noc@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 172.66.0.0/16

No nearby ranges found.

Hosted domains

There are 6 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
172.66.213.38 dolkochik.ir 5
172.66.214.66 hasuki.top 1

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

2,048 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
172.66.210.167 AS13335 Cloudflare, Inc. 0.14ms from Brisbane, AU
172.66.212.160 AS13335 Cloudflare, Inc. 0.13ms from Yerevan, AM
172.66.215.183 AS13335 Cloudflare, Inc. 0.13ms from Yerevan, AM
172.66.208.158 AS13335 Cloudflare, Inc. 0.14ms from Brisbane, AU
172.66.213.120 AS13335 Cloudflare, Inc. 0.13ms from Brisbane, AU
172.66.211.57 AS13335 Cloudflare, Inc. 0.13ms from Brisbane, AU
172.66.209.129 AS13335 Cloudflare, Inc. 0.13ms from Luxembourg, LU
172.66.214.113 AS13335 Cloudflare, Inc. 0.14ms from Yerevan, AM

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
109.92.210.181 AS8400 TELEKOM SRBIJA a.d. 0.40ms from Belgrade, RS
92.214.4.197 AS3209 Vodafone GmbH 1.66ms from Berlin, DE
72.166.44.5 AS26761 Designs Apparel, Inc. 2.63ms from Boston, US
23.229.62.213 AS55286 B2 Net Solutions Inc. 0.21ms from Buffalo, US
139.211.112.5 AS4837 CHINA UNICOM China169 Backbone 7.08ms from Changchun, CN
3.28.246.165 AS16509 Amazon.com, Inc. 0.12ms from Dubai, AE
88.133.189.117 AS12611 R-KOM Regensburger Telekommunikationsgesellschaft mbH 5.14ms from Frankfurt am Main, DE
14.176.17.85 AS45899 VNPT Corp 1.58ms from Hanoi, VN
31.27.25.229 AS30722 Vodafone Italia S.p.A. 2.41ms from Milan, IT
223.214.179.101 AS4134 CHINANET-BACKBONE 13.60ms from Nanchang, CN
153.99.30.5 AS4837 CHINA UNICOM China169 Backbone 3.48ms from Nanjing, CN
81.21.35.85 AS16229 Primetel PLC 0.85ms from Nicosia, CY
60.209.77.101 AS4837 CHINA UNICOM China169 Backbone 2.78ms from Qingdao, CN
62.213.12.165 AS12389 PJSC Rostelecom 0.17ms from Samara, RU
193.91.208.85 AS2116 GLOBALCONNECT AS 1.77ms from Sandefjord, NO
189.143.55.245 AS8151 UNINET 10.33ms from Santiago de Queretaro, MX
101.224.81.181 AS4812 China Telecom (Group) 2.21ms from Shanghai, CN
218.160.120.229 AS3462 Data Communication Business Group 2.64ms from Taipei, TW
125.45.151.21 AS4837 CHINA UNICOM China169 Backbone 6.25ms from Zhengzhou, CN
108.49.114.21 AS701 Verizon Business 1.71ms from Boston, US
125.21.6.5 AS9498 BHARTI Airtel Ltd. 1.73ms from Chennai, IN
187.211.243.101 AS8151 UNINET 6.46ms from Guadalajara, MX
180.219.72.101 AS17924 SmarTone Mobile Communications Ltd 12.35ms from Hong Kong, HK
195.98.39.165 AS8371 PJSC "Vimpelcom" 5.76ms from Kazan, RU
116.2.201.213 AS4837 CHINA UNICOM China169 Backbone 13.73ms from Liaoyang, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 172.66.212.200
traceroute to 172.66.212.200 (172.66.212.200): 64 hops max, 52 byte packets
4 [AS13335] 172.69.220.2 0.827 ms
Measurement taken from IPinfo ProbeNet in Luxembourg, LU
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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