172.66.160.0/20

AS13335 · Cloudflare, Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

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:        [email protected]
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:        [email protected]
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:        [email protected]
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:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 172.66.0.0/16

No nearby ranges found.

Hosted domains

There are 294,036 domain names hosted across 3,805 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.66.170.130	infopetworld.com	243361
172.66.175.226	simsfinds.com	3459
172.66.161.202	linklist.bio	1738
172.66.163.43	beacons.ai	1449
172.66.170.115	cutexnxx.com	1171
172.66.167.97	namebright.com	706
172.66.168.99	clovia.com	635
172.66.174.208	faroutmagazine.co.uk	599
172.66.174.248	censor.net	524
172.66.175.209	jzt999.com	511
172.66.167.234	solo.to	483
172.66.170.5	jxjhwl.net	424
172.66.160.79	recruit.net	398
172.66.169.236	tarifcheck.de	396
172.66.174.229	link-ink.co.uk	368
172.66.165.98	smoobu.com	349
172.66.162.178	cadac.com	346
172.66.168.226	hooon.net	331
172.66.172.31	atpflightschool.com	331
172.66.163.135	okcountyrecords.com	325

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

4,096 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
172.66.173.163	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
172.66.170.215	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
172.66.175.180	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
172.66.169.152	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
172.66.163.82	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
172.66.167.113	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
172.66.171.224	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
172.66.165.136	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
172.66.174.0	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
172.66.168.190	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
172.66.162.186	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
172.66.172.202	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
172.66.160.178	AS13335 Cloudflare, Inc.	`0.11ms` from Lisbon, PT
172.66.161.158	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
172.66.166.249	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
172.66.164.40	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL

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
86.93.125.84	AS1136 KPN B.V.	`3.95ms` from Amsterdam, NL
65.182.198.228	AS20021 Ntirety, Inc.	`4.64ms` from Ashburn, US
209.237.145.212	AS399006 KUDZU NETWORKS, INC	`4.90ms` from Atlanta, US
196.118.116.228	AS36925 MEDITELECOM	`5.28ms` from Casablanca, MA
68.48.121.116	AS7922 Comcast Cable Communications, LLC	`10.93ms` from Chicago, US
93.176.86.68	AS31027 GlobalConnect A/S	`0.58ms` from Copenhagen, DK
63.199.200.36	AS7018 AT&T Enterprises, LLC	`1.19ms` from Dallas, US
209.254.90.180	AS7029 Windstream Communications LLC	`0.35ms` from Dallas, US
121.239.239.84	AS4134 CHINANET-BACKBONE	`7.10ms` from Huai'an, CN
152.67.155.84	AS31898 Oracle Corporation	`0.30ms` from London, GB
86.15.54.68	AS5089 Virgin Media Limited	`10.79ms` from London, GB
5.68.97.148	AS5607 Sky UK Limited	`8.00ms` from London, GB
178.199.122.164	AS3303 Swisscom (Switzerland) Ltd	`0.93ms` from Lugano, CH
109.168.237.244	AS12389 PJSC Rostelecom	`18.20ms` from Moscow, RU
27.238.98.20	AS4766 Korea Telecom	`6.53ms` from Seoul, KR
172.255.96.100	AS7979 Servers.com, Inc.	`0.37ms` from Amsterdam, NL
148.222.41.52	AS16276 OVH SAS	`1.37ms` from Ashburn, US
5.161.156.196	AS213230 Hetzner Online GmbH	`0.21ms` from Ashburn, US
98.16.163.36	AS7029 Windstream Communications LLC	`7.80ms` from Atlanta, US
52.27.50.4	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
73.186.160.84	AS7922 Comcast Cable Communications, LLC	`5.63ms` from Boston, US
37.157.5.84	AS198622 Adform A/S	`0.30ms` from Copenhagen, DK
63.34.96.100	AS16509 Amazon.com, Inc.	`0.24ms` from Dublin, IE
54.228.217.84	AS16509 Amazon.com, Inc.	`0.26ms` from Dublin, IE
171.61.101.20	AS24560 Bharti Airtel Ltd., Telemedia Services	`1.93ms` from Hyderabad, IN

Traceroute

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

traceroute -a -n -q1 172.66.168.82

traceroute to 172.66.168.82 (172.66.168.82): 64 hops max, 52 byte packets

1 [AS35179] 83.168.71.253 0.302 ms

2 *

3 [AS13335] 172.66.168.82 0.146 ms

Measurement taken from

IPinfo ProbeNet in Wrocław, PL

On January 18th 2026

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales