172.71.133.0/24

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 172.71.0.0/16

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

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

IP Address	ASN	Details
172.71.133.242	AS13335 Cloudflare, Inc.	`0.11ms` from Paris, FR

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
111.166.71.152	AS4837 CHINA UNICOM China169 Backbone	`6.12ms` from Beijing, CN
105.216.136.8	AS16637 MTN SA	`5.56ms` from Cape Town, ZA
207.64.118.56	AS3354 University of Texas System	`1.94ms` from Dallas, US
217.73.32.88	AS16072 First Data GmbH	`1.17ms` from Frankfurt am Main, DE
130.162.52.56	AS31898 Oracle Corporation	`0.23ms` from Frankfurt am Main, DE
84.141.84.56	AS3320 Deutsche Telekom AG	`8.38ms` from Frankfurt am Main, DE
84.63.169.104	AS3209 Vodafone GmbH	`2.92ms` from Hamburg, DE
90.250.97.8	AS5378 Vodafone Limited	`8.39ms` from London, GB
75.80.16.104	AS20001 Charter Communications Inc	`5.83ms` from Los Angeles, US
206.214.144.216	AS29866 OPTICALTEL	`2.53ms` from Miami, US
188.10.141.216	AS3269 Telecom Italia S.p.A.	`4.20ms` from Milan, IT
60.109.7.104	AS17676 SoftBank Corp.	`3.68ms` from Osaka, JP
122.1.126.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`12.38ms` from Osaka, JP
190.14.38.8	AS52469 Offshore Racks S.A	`1.30ms` from Panama, PA
185.132.127.56	AS206170 Yelles AB	`0.18ms` from Stockholm, SE
42.177.59.232	AS4837 CHINA UNICOM China169 Backbone	`2.88ms` from Tieling, CN
114.122.1.8	AS23693 PT. Telekomunikasi Selular	`11.37ms` from Batam, ID
69.73.219.184	AS14813 Columbus Telecommunications (Barbados) Limited	`2.98ms` from Bridgetown, BB
75.178.84.168	AS11426 Charter Communications Inc	`15.28ms` from Charlotte, US
173.17.22.168	AS30036 Mediacom Communications Corp	`6.70ms` from Chicago, US
27.124.144.120	AS38109 SK Broadband Co Ltd	`5.99ms` from Incheon, KR
191.101.81.152	AS47583 Hostinger International Limited	`0.50ms` from Manchester, GB
190.3.197.200	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`4.38ms` from Medellin, CO
3.97.232.248	AS16509 Amazon.com, Inc.	`0.17ms` from Montreal, CA
125.113.159.8	AS4134 CHINANET-BACKBONE	`8.90ms` from Nanchang, CN

Traceroute

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

traceroute -a -n -q1 -f2 172.71.133.1

traceroute to 172.71.133.1 (172.71.133.1): 64 hops max, 52 byte packets

2 [] 5.57.81.75 2.975 ms

3 *

4 [AS13335] 172.71.133.1 79.072 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On January 19th 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.

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