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:      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 281,179 domain names hosted across 3,815 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	hoho.ai	214417
104.20.28.193	bhl-china.org	3789
104.20.30.171	bhl-china.org	3789
104.20.19.210	bhl-china.org	3784
104.20.24.32	linklist.bio	2750
104.20.18.87	edelmetall-handel.de	1584
104.20.24.128	beacons.ai	1429
104.20.18.186	worthy.com	851
104.20.21.134	1tg88.com	682
104.20.18.8	devexpress.com	650
104.20.19.8	oslox.com	613
104.20.19.133	solo.to	496
104.20.27.124	immobilien-akquisition.de	496
104.20.28.218	bollywoodshaadis.com	472
104.20.26.52	lynk.id	454
104.20.21.116	jeunesseglobal.com	439
104.20.20.135	perfectgolfevent.com	424
104.20.28.105	denik.cz	405
104.20.16.187	recruit.net	383
104.20.27.204	rustoleum.com	376

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
104.20.17.39	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.21.239	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.20.247	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.26.20	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.30.11	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.19.218	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.25.143	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.18.215	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.28.231	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.29.89	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.31.34	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.22.111	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.16.138	AS13335 Cloudflare, Inc.	`0.11ms` from Lima, PE
104.20.27.198	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.24.143	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.23.106	AS13335 Cloudflare, Inc.	`0.12ms` 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
204.220.177.4	AS200069 MAILJET SAS	`12.12ms` from Amsterdam, NL
149.210.146.180	AS20857 Signet B.V.	`0.58ms` from Amsterdam, NL
221.219.110.20	AS4808 China Unicom Beijing Province Network	`3.43ms` from Beijing, CN
79.249.221.196	AS3320 Deutsche Telekom AG	`5.39ms` from Frankfurt am Main, DE
4.225.42.84	AS8075 Microsoft Corporation	`0.18ms` from Gaevle, SE
113.46.176.180	AS55990 Huawei Cloud Service data center	`2.86ms` from Guangzhou, CN
60.128.92.180	AS17676 SoftBank Corp.	`3.92ms` from Osaka, JP
153.201.228.148	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.19ms` from Osaka, JP
54.242.101.68	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
117.252.140.116	AS9829 National Internet Backbone	`17.72ms` from Saint Thomas Mount, IN
20.245.96.84	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
211.216.27.36	AS4766 Korea Telecom	`1.39ms` from Seoul, KR
1.15.97.212	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.51ms` from Shanghai, CN
24.36.206.84	AS7992 Cogeco Connexion Inc.	`11.64ms` from Toronto, CA
111.163.46.180	AS4837 CHINA UNICOM China169 Backbone	`5.14ms` from Beijing, CN
41.37.135.52	AS8452 TE-AS	`8.20ms` from Cairo, EG
174.97.205.244	AS10796 Charter Communications Inc	`10.83ms` from Columbus, US
18.118.164.180	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
178.13.112.212	AS3209 Vodafone GmbH	`2.12ms` from Frankfurt am Main, DE
136.37.191.196	AS16591 Google Fiber Inc.	`0.76ms` from Kansas City, US
212.113.195.20	AS12775 JPC Infonet Ltd	`0.49ms` from London, GB
86.165.5.4	AS2856 British Telecommunications PLC	`4.48ms` from London, GB
86.64.157.228	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`3.24ms` from Lyon, FR
59.190.147.84	AS17511 OPTAGE Inc.	`0.48ms` from Osaka, JP
128.22.77.148	AS17511 OPTAGE Inc.	`1.62ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f4 104.20.29.150

traceroute to 104.20.29.150 (104.20.29.150): 64 hops max, 52 byte packets

4 [AS13335] 172.69.220.2 0.758 ms

5 [AS13335] 104.20.29.150 0.167 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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