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:      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 186,474 domain names hosted across 3,839 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	55351
104.20.47.210	rephirpinemic.com	54679
104.20.38.155	designerappliances.com	5325
104.20.34.88	simsfinds.com	3439
104.20.34.129	pecsb.it	2258
104.20.36.80	netsons.com	1278
104.20.35.180	volleystation.com	1005
104.20.39.179	smoobu.com	854
104.20.34.96	tarifcheck.de	798
104.20.42.28	namebright.com	763
104.20.47.112	instantly.ai	736
104.20.43.205	botelizj.com	706
104.20.45.222	allmylinks.com	688
104.20.45.80	bhl-china.org	681
104.20.37.138	cutt.ly	644
104.20.35.62	metroconnectionsevents.com	563
104.20.33.62	faroutmagazine.co.uk	545
104.20.35.231	viessmann.com	541
104.20.34.73	xmoljd.com	514
104.20.33.30	cadac.com	499

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
104.20.34.92	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.44.156	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.39.240	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.43.101	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.42.91	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.47.86	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.33.208	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.35.194	AS13335 Cloudflare, Inc.	`0.10ms` from Wrocław, PL
104.20.45.27	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.46.241	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.37.55	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.40.110	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.38.145	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.36.46	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.41.121	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
104.20.32.31	AS13335 Cloudflare, Inc.	`0.11ms` 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
108.181.70.132	AS40676 Psychz Networks	`0.01ms` from Barcelona, ES
60.4.251.36	AS4837 CHINA UNICOM China169 Backbone	`10.91ms` from Beijing, CN
52.13.125.196	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
184.58.197.132	AS10796 Charter Communications Inc	`5.41ms` from Chicago, US
166.180.58.212	AS6167 Verizon Business	`18.42ms` from Chicago, US
76.155.128.132	AS7922 Comcast Cable Communications, LLC	`5.48ms` from Denver, US
93.198.242.228	AS3320 Deutsche Telekom AG	`4.75ms` from Frankfurt am Main, DE
91.62.37.36	AS3320 Deutsche Telekom AG	`2.77ms` from Hamburg, DE
113.188.129.196	AS45899 VNPT Corp	`2.08ms` from Ho Chi Minh City, VN
185.74.96.196	AS200641 Viaxoft SAS	`0.54ms` from Marseille, FR
151.95.93.52	AS1267 WIND TRE S.P.A.	`7.96ms` from Milan, IT
82.97.237.20	AS30848 UNIDATA S.p.A.	`1.92ms` from Milan, IT
123.221.32.180	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.26ms` from Osaka, JP
69.165.109.148	AS25875 FriendFinder Networks Inc	`1.05ms` from San Jose, US
70.62.199.100	AS10796 Charter Communications Inc	`8.48ms` from Toronto, CA
207.35.241.228	AS577 Bell Canada	`1.67ms` from Toronto, CA
20.151.231.4	AS8075 Microsoft Corporation	`0.15ms` from Toronto, CA
73.154.234.180	AS7922 Comcast Cable Communications, LLC	`10.75ms` from Washington, US
77.160.187.132	AS1136 KPN B.V.	`2.46ms` from Amsterdam, NL
195.88.176.52	AS196736 FXPRO FINANCIAL SERVICES LTD	`0.79ms` from Amsterdam, NL
93.192.21.20	AS3320 Deutsche Telekom AG	`6.52ms` from Frankfurt am Main, DE
89.7.71.244	AS12430 VODAFONE ESPANA S.A.U.	`10.32ms` from Madrid, ES
27.208.51.20	AS4837 CHINA UNICOM China169 Backbone	`8.79ms` from Qingdao, CN
121.130.181.244	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
94.69.230.228	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.76ms` from Athens, GR

Traceroute

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

traceroute -a -n -q1 104.20.35.232

traceroute to 104.20.35.232 (104.20.35.232): 64 hops max, 52 byte packets

1 [AS35179] 83.168.71.253 0.295 ms

2 *

3 [AS13335] 104.20.35.232 0.133 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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