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:      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


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

Nearby Ranges

BGP prefixes that overlap with 104.20.0.0/16

No nearby ranges found.

Hosted domains

There are 34,607 domain names hosted across 984 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	11593
104.20.11.239	netsons.com	11503
104.20.4.197	spiralpipemill.com	1694
104.20.10.197	solelyhanger.com	1683
104.20.6.133	t.ly	775
104.20.7.133	t.ly	763
104.20.4.36	mixcloud.com	536
104.20.13.253	101domain.com	285
104.20.15.156	empireflippers.com	272
104.20.5.36	mixcloud.com	167
104.20.2.124	uniformadvantage.com	160
104.20.1.168	romantichoteldallas.com	145
104.20.13.136	2m.ma	129
104.20.0.196	thyssenkrupp-steel.com	123
104.20.4.183	accountor.com	115
104.20.6.192	opensocietyfoundations.org	113
104.20.14.136	2m.ma	113
104.20.1.15	activehosted.com	101
104.20.6.42	zoznam.sk	100
104.20.0.15	activecampaign.com	94

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
104.20.14.29	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.13.136	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.11.30	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.6.114	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.1.132	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.5.194	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.0.189	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.9.0	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.3.3	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.12.55	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.4.64	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
104.20.2.163	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.7.253	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
104.20.15.244	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.10.8	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
104.20.8.22	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
4.180.101.4	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
100.6.24.244	AS701 Verizon Business	`6.19ms` from Ashburn, US
38.42.212.212	AS395354 Starry, Inc.	`0.87ms` from Boston, US
179.252.95.148	AS8167 V tal	`1.39ms` from Brasilia, BR
75.244.114.36	AS6167 Verizon Business	`10.11ms` from Chicago, US
72.204.9.4	AS22773 Cox Communications Inc.	`11.57ms` from Kansas City, US
104.124.172.244	AS16625 Akamai Technologies, Inc.	`0.37ms` from London, GB
73.124.70.52	AS7922 Comcast Cable Communications, LLC	`4.13ms` from Miami, US
216.96.160.132	AS3450 University of Tennessee	`9.15ms` from Murfreesboro, US
108.180.99.52	AS852 TELUS Communications Inc.	`3.56ms` from Seattle, US
122.34.244.164	AS17858 LG POWERCOMM	`1.78ms` from Seoul, KR
133.70.132.164	AS24268 National University Corporation Shizuoka University	`5.76ms` from Tokyo, JP
69.157.55.68	AS577 Bell Canada	`1.88ms` from Toronto, CA
57.128.239.100	AS16276 OVH SAS	`0.15ms` from Warsaw, PL
119.52.213.100	AS4837 CHINA UNICOM China169 Backbone	`9.31ms` from Changchun, CN
18.193.245.148	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
93.67.35.244	AS30722 Vodafone Italia S.p.A.	`10.53ms` from Frosinone, IT
175.151.9.164	AS4837 CHINA UNICOM China169 Backbone	`11.93ms` from Liaoyang, CN
60.19.246.84	AS4837 CHINA UNICOM China169 Backbone	`8.29ms` from Liaoyang, CN
143.131.250.100	AS35699 Adamo Telecom Iberia S.A.	`1.27ms` from Madrid, ES
161.61.163.4	AS26063 Alcon Labs, Inc.	`0.69ms` from Miami, US
91.191.28.4	AS35567 DASTO semtel d.o.o.	`6.58ms` from Novi Travnik, BA
94.93.187.180	AS3269 Telecom Italia S.p.A.	`12.98ms` from Rome, IT
61.85.79.244	AS4766 Korea Telecom	`4.82ms` from Seoul, KR
118.108.124.84	AS2518 BIGLOBE Inc.	`7.03ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 104.20.12.168

traceroute to 104.20.12.168 (104.20.12.168): 64 hops max, 52 byte packets

1 [AS35179] 83.168.71.253 4.224 ms

2 *

3 [AS13335] 104.20.12.168 0.139 ms

Measurement taken from

IPinfo ProbeNet in Wrocław, PL

On December 6th 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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