104.20.48.0/20

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 2,136 domain names hosted across 143 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
104.20.52.131	pokermonaco.pl	734
104.20.51.131	monacokasino.com	729
104.20.54.31	baumerprocess.pl	84
104.20.53.31	sensorforum.eu	84
104.20.55.163	hobelwerke.com	40
104.20.55.117	slots112.top	36
104.20.56.117	slots64.top	30
104.20.51.237	ytmonster.us	21
104.20.59.240	meds.se	19
104.20.58.240	pappotek.se	19
104.20.53.128	fossilfreepensions.lu	19
104.20.52.237	ytmonster.lu	17
104.20.55.161	cinema5digital.com	16
104.20.54.128	greenpeace.kiwi	12
104.20.49.85	rensenhousewichitasouth.com	9
104.20.53.43	winterhaltershop.be	8
104.20.63.43	luchterhand-online.eu	8
104.20.56.215	11880-internet-ag.de	8
104.20.57.215	11880-solution.de	8
104.20.50.205	cutlermusic.com	7

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
104.20.61.245	AS13335 Cloudflare, Inc.	`0.13ms` from Yerevan, AM
104.20.50.224	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.49.237	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.54.208	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.63.40	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.62.6	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.55.207	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.52.162	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.60.66	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.51.129	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.57.30	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.48.169	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.53.201	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.20.56.96	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.59.243	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.20.58.247	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
45.17.252.148	AS7018 AT&T Enterprises, LLC	`2.83ms` from Dallas, US
220.158.161.68	AS133275 Gigantic Infotel Pvt Ltd	`2.14ms` from Delhi, IN
88.65.190.4	AS3209 Vodafone GmbH	`9.78ms` from Frankfurt am Main, DE
84.144.78.196	AS3320 Deutsche Telekom AG	`4.56ms` from Nuernberg, DE
15.204.101.52	AS16276 OVH SAS	`0.37ms` from Portland, US
27.206.149.100	AS4837 CHINA UNICOM China169 Backbone	`10.75ms` from Qingdao, CN
119.179.54.20	AS4837 CHINA UNICOM China169 Backbone	`4.97ms` from Qingdao, CN
201.116.42.148	AS8151 UNINET	`4.36ms` from Santiago de Queretaro, MX
115.1.187.244	AS4766 Korea Telecom	`2.42ms` from Seoul, KR
13.251.117.196	AS16509 Amazon.com, Inc.	`0.49ms` from Singapore, SG
16.170.27.4	AS16509 Amazon.com, Inc.	`0.15ms` from Stockholm, SE
219.96.6.196	AS10010 TOKAI Communications Corporation	`10.37ms` from Tokyo, JP
57.181.39.180	AS16509 Amazon.com, Inc.	`0.13ms` from Tokyo, JP
126.11.208.132	AS17676 SoftBank Corp.	`3.13ms` from Tokyo, JP
220.209.74.4	AS55374 FUJITSU LIMITED	`3.43ms` from Tokyo, JP
77.167.13.20	AS1136 KPN B.V.	`7.15ms` from Amsterdam, NL
211.158.219.164	AS4837 CHINA UNICOM China169 Backbone	`2.74ms` from Chongqing, CN
97.155.216.164	AS6167 Verizon Business	`18.63ms` from Dallas, US
75.111.108.148	AS19108 Optimum	`9.81ms` from Fremont, US
20.244.32.196	AS8075 Microsoft Corporation	`0.68ms` from Lohogaon, IN
80.125.133.164	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`14.20ms` from Paris, FR
3.88.135.116	AS14618 Amazon.com, Inc.	`0.39ms` from Reston, US
179.67.3.148	AS7738 V tal	`8.79ms` from Rio de Janeiro, BR
222.122.63.20	AS4766 Korea Telecom	`1.19ms` from Seoul, KR
180.65.174.228	AS9318 SK Broadband Co Ltd	`2.06ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 104.20.55.249

traceroute to 104.20.55.249 (104.20.55.249): 64 hops max, 52 byte packets

4 [AS13335] 172.69.220.2 0.984 ms

5 [AS13335] 104.20.55.249 0.184 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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