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:        [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


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 184,748 domain names hosted across 3,843 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	55468
104.20.47.210	rephirpinemic.com	51890
104.20.38.155	designerappliances.com	5284
104.20.34.88	simsfinds.com	3458
104.20.45.80	bhl-china.org	3236
104.20.36.197	bhl-china.org	3210
104.20.47.185	bhl-china.org	3206
104.20.43.205	bhl-china.org	3192
104.20.35.231	bhl-china.org	3180
104.20.34.73	googleqhd.com	3161
104.20.35.62	bhl-china.org	3084
104.20.34.129	fib.iq	2228
104.20.36.80	netsons.com	1231
104.20.34.96	tarifcheck.de	1047
104.20.35.180	volleystation.com	1014
104.20.39.179	smoobu.com	845
104.20.42.28	namebright.com	773
104.20.47.112	instantly.ai	750
104.20.45.222	allmylinks.com	707
104.20.37.138	cutt.ly	635

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
104.20.32.108	AS13335 Cloudflare, Inc.	`0.12ms` from Yerevan, AM
104.20.40.142	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.35.154	AS13335 Cloudflare, Inc.	`0.12ms` from Lisbon, PT
104.20.44.59	AS13335 Cloudflare, Inc.	`0.12ms` from Lisbon, PT
104.20.41.101	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.34.218	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.45.123	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.39.152	AS13335 Cloudflare, Inc.	`0.12ms` from Lisbon, PT
104.20.33.27	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.46.218	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.38.139	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.47.61	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.42.111	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.43.75	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.37.27	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.36.188	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
98.213.168.52	AS7922 Comcast Cable Communications, LLC	`4.02ms` from Chicago, US
86.179.108.228	AS2856 British Telecommunications PLC	`2.37ms` from Erith, GB
63.180.149.164	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
42.114.59.116	AS18403 FPT Telecom Company	`7.82ms` from Ho Chi Minh City, VN
129.122.168.132	AS37645 Finstar - Sociedade de Investimento e Participacoes S.A	`2.26ms` from Luanda, AO
121.238.33.244	AS4134 CHINANET-BACKBONE	`4.80ms` from Nanjing, CN
126.49.73.228	AS17676 SoftBank Corp.	`13.08ms` from Osaka, JP
201.20.227.148	AS19182 TELEFÔNICA BRASIL S.A	`9.91ms` from Porto Alegre, BR
31.176.200.164	AS9146 BIHNET Autonomus System	`3.89ms` from Sarajevo, BA
24.0.219.148	AS7922 Comcast Cable Communications, LLC	`5.91ms` from Secaucus, US
220.79.213.4	AS4766 Korea Telecom	`1.41ms` from Seoul, KR
220.75.104.52	AS4766 Korea Telecom	`5.28ms` from Seoul, KR
35.76.141.4	AS16509 Amazon.com, Inc.	`0.24ms` from Tokyo, JP
23.12.144.132	AS20940 Akamai International B.V.	`0.23ms` from Ashburn, US
74.209.110.228	AS12208 TruVista Communications	`4.17ms` from Atlanta, US
37.222.208.164	AS12430 VODAFONE ESPANA S.A.U.	`4.24ms` from Barcelona, ES
124.251.58.228	AS23724 IDC, China Telecommunications Corporation	`3.06ms` from Beijing, CN
190.220.197.4	AS11664 Techtel LMDS Comunicaciones Interactivas S.A.	`1.31ms` from Buenos Aires, AR
131.193.22.20	AS6200 University of Illinois Chicago	`3.44ms` from Chicago, US
86.111.134.20	AS15547 netplus.ch SA	`2.94ms` from Geneve, CH
46.201.18.116	AS6849 JSC "Ukrtelecom"	`7.86ms` from Kyiv, UA
79.78.107.132	AS13285 TalkTalk Communications Limited	`4.88ms` from Manchester, GB
148.75.180.148	AS6128 Cablevision Systems Corp.	`3.16ms` from New York City, US
179.126.117.244	AS53006 ALGAR TELECOM S/A	`11.73ms` from Osasco, BR
38.154.205.164	AS174 Cogent Communications, LLC	`0.40ms` from Piscataway, US

Traceroute

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

traceroute -a -n -q1 -f3 104.20.45.176

traceroute to 104.20.45.176 (104.20.45.176): 64 hops max, 52 byte packets

3 [] 195.246.227.15 0.632 ms

4 [AS13335] 104.20.45.176 0.317 ms

Measurement taken from

IPinfo ProbeNet in Riga, LV

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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