104.20.0.0/20

AS13335 · Cloudflare, Inc.

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Summary

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

WHOIS Details

NetHandle:      NET-104-16-0-0-1
OrgID:          CLOUD14
Parent:         NET-104-0-0-0-0
NetName:        CLOUDFLARENET
NetRange:       104.16.0.0 - 104.31.255.255
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:        2014-03-28
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:      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


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:      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

Nearby Ranges

BGP prefixes that overlap with 104.20.0.0/16

No nearby ranges found.

Hosted domains

There are 35,530 domain names hosted across 975 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
104.20.10.239	netsons.net	11847
104.20.11.239	netsons.com	11780
104.20.10.197	tanbos.com	1733
104.20.4.197	zoestarbags.net	1705
104.20.7.133	t.ly	981
104.20.6.133	t.ly	950
104.20.4.36	mixcloud.com	551
104.20.13.253	101domain.com	282
104.20.15.156	empireflippers.com	271
104.20.9.214	credit-agricole.pl	203
104.20.2.124	uniformadvantage.com	160
104.20.5.36	mixcloud.com	149
104.20.1.168	romantichoteldallas.com	147
104.20.13.136	2m.ma	131
104.20.0.196	thyssenkrupp-steel.com	125
104.20.4.183	accountor.com	113
104.20.14.136	2m.ma	109
104.20.6.192	opensocietyfoundations.org	108
104.20.0.15	activecampaign.com	104
104.20.6.42	zoznam.sk	100

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
104.20.1.87	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.13.219	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.12.196	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.7.96	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.10.71	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.0.207	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.4.101	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.9.252	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.8.145	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.11.71	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.6.212	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.15.34	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.14.67	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.5.92	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.3.243	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.2.215	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE

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
212.205.64.148	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.56ms` from Athens, GR
111.206.116.116	AS4808 China Unicom Beijing Province Network	`3.25ms` from Beijing, CN
167.88.152.52	AS23352 DEFT.COM	`0.22ms` from Chicago, US
113.229.31.116	AS4837 CHINA UNICOM China169 Backbone	`6.11ms` from Liaoyang, CN
123.189.145.212	AS4837 CHINA UNICOM China169 Backbone	`11.38ms` from Liaoyang, CN
173.198.221.132	AS40244 Turnkey Internet Inc.	`3.80ms` from New York City, US
141.168.14.116	AS135887 Belong (Telstra Limited)	`0.60ms` from Perth, AU
2.177.222.68	AS58224 Iran Telecommunication Company PJS	`16.07ms` from Yerevan, AM
216.231.170.212	AS22561 CenturyLink Communications, LLC	`10.92ms` from Atlanta, US
86.192.69.52	AS3215 Orange S.A.	`10.13ms` from Aubervilliers, FR
98.25.61.20	AS11426 Charter Communications Inc	`11.28ms` from Charlotte, US
221.237.56.100	AS4134 CHINANET-BACKBONE	`2.02ms` from Chengdu, CN
67.246.140.36	AS11351 Charter Communications Inc	`17.05ms` from Chicago, US
84.164.67.4	AS3320 Deutsche Telekom AG	`4.43ms` from Duesseldorf, DE
24.65.71.4	AS6327 Shaw Communications Inc.	`4.62ms` from Edmonton, CA
170.10.191.228	AS395662 OzarksGo, LLC	`7.14ms` from Kansas City, US
18.130.201.180	AS16509 Amazon.com, Inc.	`0.15ms` from London, GB
89.32.85.68	AS200845 AVATEL TELECOM, SA	`12.68ms` from Madrid, ES
95.39.194.116	AS6739 VODAFONE ONO, S.A.	`13.11ms` from Madrid, ES
162.247.96.244	AS396982 Google LLC	`0.08ms` from Melbourne, AU
94.81.251.228	AS3269 Telecom Italia S.p.A.	`0.80ms` from Milan, IT
35.196.53.20	AS396982 Google LLC	`0.15ms` from Moncks Corner, US
165.99.9.196	AS149020 WebHorizon Internet Services	`1.41ms` from Mumbai, IN
40.143.159.212	AS17378 TierPoint, LLC	`1.15ms` from Nashville, US
5.128.142.164	AS31200 Novotelecom Ltd	`1.13ms` from Novosibirsk, RU

Traceroute

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

traceroute -a -n -q1 -f4 104.20.15.142

traceroute to 104.20.15.142 (104.20.15.142): 64 hops max, 52 byte packets

4 [AS13335] 172.69.220.2 7.568 ms

5 [AS13335] 104.20.15.142 0.175 ms

Measurement taken from

IPinfo ProbeNet in Luxembourg, LU

On October 30th 2025

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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