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:      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


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

Nearby Ranges

BGP prefixes that overlap with 104.20.0.0/16

No nearby ranges found.

Hosted domains

There are 295,490 domain names hosted across 3,826 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	226778
104.20.26.20	binarysec.top	3301
104.20.28.193	responsiveclassroom.org	3277
104.20.19.210	bhl-china.org	3247
104.20.25.141	bhl-china.org	3222
104.20.30.171	tmuralife.co.il	3149
104.20.24.32	linklist.bio	2400
104.20.18.87	edelmetall-handel.de	1578
104.20.24.128	beacons.ai	1428
104.20.21.134	5king33.com	693
104.20.27.124	makler-des-suedens.de	653
104.20.26.52	lynk.id	649
104.20.18.8	devexpress.com	641
104.20.19.8	zestbird.com	604
104.20.19.133	solo.to	516
104.20.21.116	jeunesseglobal.com	479
104.20.20.135	perfectgolfevent.com	434
104.20.31.176	cohley.com	419
104.20.28.105	denik.cz	419
104.20.17.97	podbean.com	402

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
104.20.17.154	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.21.170	AS13335 Cloudflare, Inc.	`0.12ms` from Lisbon, PT
104.20.31.222	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.19.115	AS13335 Cloudflare, Inc.	`0.12ms` from Yerevan, AM
104.20.20.42	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.24.116	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.27.177	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.18.139	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.16.63	AS13335 Cloudflare, Inc.	`0.12ms` from Yerevan, AM
104.20.22.46	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.28.75	AS13335 Cloudflare, Inc.	`0.13ms` from Lisbon, PT
104.20.29.241	AS13335 Cloudflare, Inc.	`0.13ms` from Lisbon, PT
104.20.23.139	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.30.199	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.26.170	AS13335 Cloudflare, Inc.	`0.12ms` from Yerevan, AM
104.20.25.66	AS13335 Cloudflare, Inc.	`0.12ms` from Lisbon, PT

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
65.83.104.148	AS6389 AT&T Enterprises, LLC	`6.62ms` from Atlanta, US
64.30.67.244	AS26292 Shrewsbury Electric and Cable Operations	`1.82ms` from Boston, US
86.141.250.148	AS2856 British Telecommunications PLC	`5.81ms` from Erith, GB
81.98.227.164	AS5089 Virgin Media Limited	`4.60ms` from Erith, GB
210.211.124.100	AS38731 Vietel - CHT Compamy Ltd	`0.47ms` from Hanoi, VN
103.75.183.4	AS151858 INTERDIGI JOINT STOCK COMPANY	`0.55ms` from Ho Chi Minh City, VN
72.42.207.244	AS46231 Watch Communications	`10.15ms` from Indianapolis, US
103.224.124.244	AS150197 PT Curug Lintas Indonesia	`0.38ms` from Jakarta, ID
185.109.105.36	AS20832 Southern Communications Ltd	`0.56ms` from Manchester, GB
119.166.29.196	AS4837 CHINA UNICOM China169 Backbone	`2.32ms` from Qingdao, CN
18.232.238.132	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
213.194.173.20	AS15704 XTRA TELECOM S.A.	`4.36ms` from Sevilla, ES
20.60.73.132	AS8075 Microsoft Corporation	`0.70ms` from Sydney, AU
62.212.55.196	AS34797 System Net Ltd	`3.85ms` from Tbilisi, GE
86.102.39.68	AS12389 PJSC Rostelecom	`1.09ms` from Vladivostok, RU
38.42.111.164	AS395354 Starry, Inc.	`3.77ms` from Boston, US
75.219.123.228	AS6167 Verizon Business	`18.64ms` from Chicago, US
67.175.11.212	AS7922 Comcast Cable Communications, LLC	`6.11ms` from Chicago, US
216.246.214.4	AS205659 UAB code200	`0.31ms` from Dallas, US
193.124.24.4	AS398343 Baxet Group Inc.	`0.19ms` from Dallas, US
64.182.23.36	AS54489 CoreSpace, Inc.	`0.83ms` from Dallas, US
18.196.1.100	AS16509 Amazon.com, Inc.	`0.49ms` from Frankfurt am Main, DE
47.69.133.116	AS3209 Vodafone GmbH	`14.58ms` from Frankfurt am Main, DE
94.63.71.52	AS12353 Vodafone Portugal	`1.91ms` from Lisbon, PT
81.132.39.68	AS2856 British Telecommunications PLC	`6.22ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f5 104.20.22.74

traceroute to 104.20.22.74 (104.20.22.74): 64 hops max, 52 byte packets

5 [AS8932] 185.48.241.27 0.663 ms

6 [AS13335] 104.20.22.74 0.187 ms

Measurement taken from

IPinfo ProbeNet in Yerevan, AM

On November 28th 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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