104.20.32.0/20

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 175,001 domain names hosted across 3,834 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
104.20.41.38	brandbucket.com	55874
104.20.47.210	rephirpinemic.com	43222
104.20.38.155	designerappliances.com	5472
104.20.35.231	bhl-china.org	3799
104.20.45.80	bhl-china.org	3794
104.20.35.62	bhl-china.org	3784
104.20.43.205	bhl-china.org	3783
104.20.34.73	bhl-china.org	3782
104.20.34.88	simsfinds.com	3411
104.20.34.129	aruba.it	2431
104.20.36.80	netsons.com	1147
104.20.35.180	volleystation.com	1093
104.20.39.179	4kporn.xxx	1048
104.20.42.28	namebright.com	832
104.20.47.112	instantly.ai	676
104.20.45.222	allmylinks.com	669
104.20.37.138	cutt.ly	662
104.20.33.30	cadac.com	495
104.20.38.209	christianfilipina.com	470
104.20.33.62	faroutmagazine.co.uk	468

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
104.20.44.44	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.41.136	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.36.183	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.38.73	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.40.103	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.47.161	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.37.146	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.46.145	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.39.40	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.33.225	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.42.48	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.32.193	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.34.41	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.45.205	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.35.0	AS13335 Cloudflare, Inc.	`0.11ms` from Lima, PE
104.20.43.7	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
164.106.192.4	AS22845 Virginia Community College System	`17.18ms` from Ashburn, US
5.101.172.148	AS42831 UK Dedicated Servers Limited	`0.17ms` from Coventry, GB
97.150.74.100	AS6167 Verizon Business	`15.75ms` from Dallas, US
116.103.47.100	AS24086 Viettel Corporation	`10.35ms` from Ho Chi Minh City, VN
92.250.5.244	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`12.69ms` from Lisbon, PT
15.152.194.20	AS16509 Amazon.com, Inc.	`0.31ms` from Osaka, JP
121.159.23.148	AS4766 Korea Telecom	`6.00ms` from Seoul, KR
101.83.160.132	AS4812 China Telecom (Group)	`4.49ms` from Shanghai, CN
140.114.148.164	AS18047 National Tsing-Hua University	`2.84ms` from Taipei, TW
24.80.130.52	AS6327 Shaw Communications Inc.	`4.21ms` from Vancouver, CA
91.207.65.148	AS13000 Leon Sp. z o.o.	`6.84ms` from Warsaw, PL
173.42.33.68	AS11426 Charter Communications Inc	`1.39ms` from Charlotte, US
129.187.208.52	AS12816 Leibniz-Rechenzentrum	`8.81ms` from Frankfurt am Main, DE
193.24.15.4	AS30787 Jumo GmbH & Co. KG	`1.72ms` from Frankfurt am Main, DE
178.166.140.132	AS12389 PJSC Rostelecom	`1.19ms` from Krasnoyarsk, RU
212.64.176.244	AS12540 IdecNet S.A.	`0.33ms` from Las Palmas de Gran Canaria, ES
193.60.95.228	AS786 Jisc Services Limited	`2.12ms` from London, GB
81.40.13.132	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.89ms` from Madrid, ES
176.107.144.164	AS31034 Aruba S.p.A.	`1.22ms` from Milan, IT
88.46.38.4	AS3269 Telecom Italia S.p.A.	`3.21ms` from Milan, IT
46.160.45.180	AS47241 Joint Stock Company TransTeleCom	`6.11ms` from Moscow, RU
104.210.142.20	AS8075 Microsoft Corporation	`0.19ms` from San Antonio, US
18.172.28.148	AS16509 Amazon.com, Inc.	`0.10ms` from Tokyo, JP
23.91.233.4	AS11814 Distributel Communications Limited	`6.30ms` from Toronto, CA
200.35.87.164	AS6306 TELEFONICA VENEZOLANA, C.A.	`2.75ms` from Caracas, VE

Traceroute

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

traceroute -a -n -q1 -f4 104.20.42.20

traceroute to 104.20.42.20 (104.20.42.20): 64 hops max, 52 byte packets

4 [AS13335] 172.69.220.2 0.718 ms

5 [AS13335] 104.20.42.20 0.205 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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