104.20.16.0/20

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:      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:      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:      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

Nearby Ranges

BGP prefixes that overlap with 104.20.0.0/16

No nearby ranges found.

Hosted domains

There are 290,015 domain names hosted across 3,835 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
104.20.26.89	recipesandcooker.com	222378
104.20.24.32	linklist.bio	2206
104.20.18.87	edelmetall-handel.de	1591
104.20.24.128	beacons.ai	1417
104.20.19.210	cqyxcw.com	703
104.20.27.124	frankhoffmann-immobilien.de	702
104.20.21.134	789f.ooo	700
104.20.28.193	bhl-china.org	690
104.20.18.8	devexpress.com	642
104.20.26.52	lynk.id	630
104.20.19.8	gamerdomainer.com	602
104.20.25.141	prostir.ua	582
104.20.26.20	singx.top	580
104.20.30.171	tmuralife.co.il	564
104.20.22.246	censor.net	550
104.20.19.133	solo.to	514
104.20.21.116	jeunesseglobal.com	479
104.20.20.135	perfectgolfevent.com	438
104.20.28.105	denik.cz	422
104.20.31.176	cohley.com	410

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
104.20.22.145	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.18.246	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.29.191	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.17.42	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.21.136	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.31.134	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.25.68	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
104.20.28.205	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.19.214	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.30.90	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
104.20.27.215	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.23.73	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.20.27	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.24.189	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.26.108	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.16.212	AS13335 Cloudflare, Inc.	`0.10ms` 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
71.72.17.20	AS10796 Charter Communications Inc	`12.91ms` from Ashburn, US
98.110.231.36	AS701 Verizon Business	`1.93ms` from Boston, US
198.71.91.180	AS398242 Prentiss County Electric Power Association	`15.48ms` from Chicago, US
77.76.230.52	AS8823 Rockenstein AG	`3.45ms` from Frankfurt am Main, DE
156.230.102.212	AS136907 HUAWEI CLOUDS	`1.08ms` from Hong Kong, HK
88.18.197.212	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.63ms` from Madrid, ES
201.121.136.212	AS8151 UNINET	`1.50ms` from Mexico City, MX
152.42.23.68	AS396956 Meriwether Lewis Electric Cooperative	`10.55ms` from Nashville, US
82.57.109.132	AS3269 Telecom Italia S.p.A.	`2.65ms` from Rome, IT
104.176.1.244	AS7018 AT&T Enterprises, LLC	`3.46ms` from San Jose, US
76.146.189.244	AS7922 Comcast Cable Communications, LLC	`12.90ms` from Seattle, US
118.36.17.164	AS4766 Korea Telecom	`1.92ms` from Seoul, KR
60.221.230.4	AS4837 CHINA UNICOM China169 Backbone	`6.20ms` from Taiyuan, CN
115.163.90.52	AS2527 Sony Network Communications Inc.	`2.64ms` from Tokyo, JP
77.109.141.148	AS13030 Init7 (Switzerland) Ltd.	`0.18ms` from Zuerich, CH
208.118.160.164	AS22925 Allied Telecom Group, LLC	`1.70ms` from Ashburn, US
105.69.139.52	AS36884 Wana Corporate	`19.23ms` from Casablanca, MA
154.124.68.164	AS8346 SONATEL-AS Autonomous System	`1.91ms` from Dakar, SN
40.120.87.68	AS8075 Microsoft Corporation	`0.93ms` from Dubai, AE
213.196.247.4	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`4.32ms` from Duesseldorf, DE
2.219.72.52	AS5607 Sky UK Limited	`4.67ms` from Erith, GB
20.79.53.68	AS8075 Microsoft Corporation	`0.21ms` from Frankfurt am Main, DE
92.52.131.20	AS202103 Lanet Network Ltd	`5.02ms` from Kyiv, UA
34.74.118.84	AS396982 Google LLC	`0.13ms` from Moncks Corner, US
183.146.181.180	AS4134 CHINANET-BACKBONE	`7.16ms` from Ningbo, CN

Traceroute

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

traceroute -a -n -q1 104.20.27.141

traceroute to 104.20.27.141 (104.20.27.141): 64 hops max, 52 byte packets

1 [AS35179] 83.168.71.253 0.21 ms

2 *

3 [AS13335] 104.20.27.141 0.147 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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