1. All IP Ranges
  2. 104.0.0.0/8
  3. 104.21.0.0/16
  4. AS13335  | 104.21.96.0/20

104.21.96.0/20

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:      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


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

Nearby Ranges

BGP prefixes that overlap with 104.21.0.0/16

No nearby ranges found.

Hosted domains

There are 394,258 domain names hosted across 170 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
104.21.96.51 stormstone.top 2009
104.21.96.22 miliashop.com 1630
104.21.96.47 imile.com 1503
104.21.96.31 russianblogs.com 1489
104.21.96.2 atidoor.com 1485
104.21.96.82 booblex.org 1473
104.21.96.5 enr.com 1462
104.21.96.52 1004pps.com 1455
104.21.96.150 ukvisas.co.uk 1445
104.21.96.16 jellysupplier.com 1444
104.21.96.28 phuketdreamcompany.com 1436
104.21.96.86 1news.az 1429
104.21.96.125 wazmagazine.com 1428
104.21.96.140 wapoz.info 1426
104.21.96.46 streamtape.com 1425
104.21.96.131 rankia.co 1417
104.21.96.156 detonashop.com.br 1416
104.21.96.12 zonarutoppuden.net 1415
104.21.96.130 guiaevida.com 1404
104.21.96.136 obsremote.com 1403

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

4,048 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
104.21.96.103 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.102.68 AS13335 Cloudflare, Inc. 0.10ms from Wrocław, PL
104.21.110.113 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.98.89 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.111.132 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.106.66 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.97.102 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.100.152 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.101.183 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.108.89 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.109.242 AS13335 Cloudflare, Inc. 0.10ms from Wrocław, PL
104.21.104.217 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.103.101 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.105.6 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.99.77 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
104.21.107.189 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
52.149.161.4 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
122.136.148.180 AS4837 CHINA UNICOM China169 Backbone 10.22ms from Changchun, CN
76.30.221.244 AS7922 Comcast Cable Communications, LLC 5.49ms from Houston, US
188.10.192.196 AS3269 Telecom Italia S.p.A. 1.87ms from Milan, IT
122.103.198.68 AS2519 ARTERIA Networks Corporation 4.70ms from Osaka, JP
13.52.154.212 AS16509 Amazon.com, Inc. 0.18ms from San Jose, US
59.23.110.84 AS4766 Korea Telecom 9.34ms from Seoul, KR
115.48.22.116 AS4837 CHINA UNICOM China169 Backbone 5.69ms from Zhengzhou, CN
86.90.9.196 AS1136 KPN B.V. 0.98ms from Amsterdam, NL
211.101.37.132 AS17964 Beijing Dian-Xin-Tong Network Technologies Co., Ltd. 4.44ms from Beijing, CN
159.242.251.4 AS30697 iVision, Inc. 1.38ms from Dallas, US
68.16.8.4 AS35986 Vyve Broadband 0.30ms from Dallas, US
79.244.79.244 AS3320 Deutsche Telekom AG 2.53ms from Duesseldorf, DE
193.161.223.244 AS35394 Cable Aireworld S.A.U. 8.59ms from Madrid, ES
64.229.163.20 AS577 Bell Canada 3.50ms from Montreal, CA
122.243.61.100 AS4134 CHINANET-BACKBONE 9.14ms from Nanchang, CN
71.198.128.84 AS7922 Comcast Cable Communications, LLC 7.07ms from Santa Clara, US
189.234.203.100 AS8151 UNINET 4.30ms from Santiago de Queretaro, MX
49.234.126.52 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.72ms from Shanghai, CN
176.46.25.244 AS3249 Telia Eesti AS 3.37ms from Tallinn, EE
83.9.127.52 AS5617 Orange Polska Spolka Akcyjna 6.88ms from Warsaw, PL
156.222.25.228 AS8452 TE-AS 3.56ms from Cairo, EG
81.192.171.132 AS6713 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 3.64ms from Casablanca, MA
66.110.180.20 AS26891 Otava, LLC 0.27ms from Denver, US
178.31.137.180 AS8434 Telenor Sverige AB 19.41ms from Falkenberg, SE

Traceroute

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

$
traceroute -a -n -q1 -f3 104.21.108.96
traceroute to 104.21.108.96 (104.21.108.96): 64 hops max, 52 byte packets
3 [AS8932] 185.48.241.27 1.048 ms
Measurement taken from IPinfo ProbeNet in Yerevan, AM
On

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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