104.21.224.0/20

AS13335 · Cloudflare, Inc.

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Summary

Country	United States
Domain	cloudflare.com
ASN	AS13335
Parent Range	104.16.0.0/12
Registry	ARIN
ID	CLOUDFLARENET

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
104.21.235.114	AS13335 Cloudflare, Inc.	0.14ms from Johannesburg, ZA
104.21.225.131	AS13335 Cloudflare, Inc.	0.14ms from Johannesburg, ZA
104.21.228.22	AS13335 Cloudflare, Inc.	0.14ms from Geneve, CH
104.21.238.197	AS13335 Cloudflare, Inc.	0.13ms from Johannesburg, ZA
104.21.226.41	AS13335 Cloudflare, Inc.	0.14ms from Johannesburg, ZA
104.21.232.0	AS13335 Cloudflare, Inc.	0.12ms from Johannesburg, ZA
104.21.231.69	AS13335 Cloudflare, Inc.	0.13ms from Johannesburg, ZA
104.21.234.129	AS13335 Cloudflare, Inc.	0.12ms from Johannesburg, ZA
104.21.230.176	AS13335 Cloudflare, Inc.	0.14ms from Johannesburg, ZA
104.21.233.180	AS13335 Cloudflare, Inc.	0.14ms from Johannesburg, ZA
104.21.236.158	AS13335 Cloudflare, Inc.	0.14ms from Geneve, CH
104.21.224.241	AS13335 Cloudflare, Inc.	0.13ms from Johannesburg, ZA
104.21.227.43	AS13335 Cloudflare, Inc.	0.13ms from Johannesburg, ZA
104.21.229.117	AS13335 Cloudflare, Inc.	0.13ms from Johannesburg, ZA
104.21.237.2	AS13335 Cloudflare, Inc.	0.13ms from Johannesburg, ZA
104.21.239.232	AS13335 Cloudflare, Inc.	0.14ms from Johannesburg, ZA

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
173.50.73.228	AS701 Verizon Business	10.01ms from Ashburn, US
90.108.26.100	AS3215 Orange S.A.	7.46ms from Paris, FR
119.100.124.36	AS4134 CHINANET-BACKBONE	3.69ms from Wuhan, CN
46.87.236.100	AS3320 Deutsche Telekom AG	8.89ms from Frankfurt am Main, DE
31.48.96.84	AS2856 British Telecommunications PLC	5.92ms from London, GB
82.43.173.36	AS5089 Virgin Media Limited	8.15ms from London, GB
5.96.64.164	AS3269 Telecom Italia S.p.A.	4.08ms from Milan, IT
2.11.229.132	AS3215 Orange S.A.	6.27ms from Paris, FR
76.158.160.20	AS7922 Comcast Cable Communications, LLC	8.31ms from San Jose, US
210.143.105.196	AS7678 Prox System Design Inc.	1.56ms from Tokyo, JP
50.219.159.196	AS7922 Comcast Cable Communications, LLC	11.43ms from Los Angeles, US
2.18.234.100	AS16625 Akamai Technologies, Inc.	0.12ms from Milan, IT
23.87.64.100	AS20115 Charter Communications LLC	10.70ms from Minneapolis, US
167.61.5.36	AS6057 Administracion Nacional de Telecomunicaciones	1.76ms from Montevideo, UY
62.47.220.180	AS8447 A1 Telekom Austria AG	10.03ms from Vienna, AT
195.54.187.148	AS196969 NETFIBER Marcin Wojcik	7.70ms from Warsaw, PL
83.135.186.180	AS8881 1&1 Versatel Deutschland GmbH	2.88ms from Duesseldorf, DE
185.8.18.228	AS2116 GLOBALCONNECT AS	2.16ms from Oslo, NO
210.234.130.20	AS2516 KDDI CORPORATION	6.50ms from Tokyo, JP
147.50.142.180	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	0.55ms from Bangkok, TH
47.96.91.180	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	4.76ms from Hangzhou, CN
69.60.132.228	AS23131 STARLAN TELECOM CORP.	1.10ms from New York City, US
108.61.144.196	AS20473 The Constant Company, LLC	0.20ms from Piscataway, US
162.159.58.20	AS13335 Cloudflare, Inc.	0.10ms from Porto Alegre, BR
95.38.32.4	AS41881 Fanava Group	16.07ms from Yerevan, AM

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
OriginAS:       13335
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:      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:      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:      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:      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:        2024-08-21
OfficePhone:    +1-650-319-8930
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 104.21.224.0/20

Range	ASN	Company	Num of IPs
104.16.0.0/12	AS13335	Cloudflare, Inc.	1,048,576

Nearby Ranges

BGP prefixes that overlap with 104.21.0.0/16

Range	ASN	Company	Num of IPs
104.16.0.0/12	AS13335	Cloudflare, Inc.	1,048,576
104.21.0.0/19	AS13335	Cloudflare, Inc.	8,192
104.21.64.0/19	AS13335	Cloudflare, Inc.	8,192
104.21.96.0/19	AS13335	Cloudflare, Inc.	8,192
104.21.32.0/19	AS13335	Cloudflare, Inc.	8,192
104.21.192.0/19	AS13335	Cloudflare, Inc.	8,192
104.21.64.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.208.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.48.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.96.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.32.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.192.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.112.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.16.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.80.0/20	AS13335	Cloudflare, Inc.	4,096
104.21.0.0/20	AS13335	Cloudflare, Inc.	4,096

Hosted domains

There are 12,088 domain names hosted across 954 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
104.21.227.134	yiso.fun	6057
104.21.224.5	yiso.fun	6057
104.21.234.168	car12.cn	332
104.21.235.178	cryptoforcenews.ml	297
104.21.235.177	suspendeddomain.org	293
104.21.234.143	deli-spot.net	155
104.21.234.83	8mei444.xyz	48
104.21.239.220	q8f2.cn	37
104.21.234.82	8mei767.xyz	32
104.21.235.210	worldgirlx4.live	30
104.21.234.238	vercdnlive2.tk	28
104.21.234.135	questionablecontent.net	26
104.21.235.145	escorteprive.nl	26
104.21.234.33	hornyxxtub32.live	24
104.21.234.134	questionablecontent.net	23
104.21.234.239	setteidreams.net	23
104.21.233.248	xxteen2.me	21
104.21.233.167	schweighardt.shop	21
104.21.233.192	arverezettingatlan.hu	17
104.21.234.11	javadoc.io	16

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

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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.

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