104.19.144.0/20

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 104.19.0.0/16

No nearby ranges found.

Hosted domains

There are 74,954 domain names hosted across 552 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
104.19.154.92	helpdeskgeek.com	27788
104.19.157.83	istikbal.com.tr	12417
104.19.156.83	myideasoft.com	12366
104.19.152.30	apostleherbiemac.com	9668
104.19.151.30	cosmovet.net	9532
104.19.152.75	thehamptonsocial.com	8575
104.19.153.75	thehamptonsocial.com	8425
104.19.155.92	rigorousthemes.com	1375
104.19.154.16	betfair.com	614
104.19.153.16	betfair.com	586
104.19.155.84	blaquemecca.com	165
104.19.155.58	longchamp.com	161
104.19.159.48	weixinplasitc.com	148
104.19.156.84	thefarewelldayparty.com	105
104.19.152.33	hastens.com	101
104.19.159.190	nordvpn.com	89
104.19.144.87	detroitmi.gov	84
104.19.152.81	arnoldproducts.com	56
104.19.156.23	truenorthindia.in	49
104.19.154.33	restorejustice.org.uk	48

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
104.19.159.176	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.19.157.109	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.19.153.196	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.19.147.24	AS13335 Cloudflare, Inc.	`0.13ms` from Porto Alegre, BR
104.19.150.216	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.19.156.133	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
104.19.145.68	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.19.154.64	AS13335 Cloudflare, Inc.	`0.13ms` from Lima, PE
104.19.146.183	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
104.19.152.20	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.19.148.168	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
104.19.155.181	AS13335 Cloudflare, Inc.	`0.12ms` from Lima, PE
104.19.158.127	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
104.19.151.38	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
104.19.144.18	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
104.19.149.154	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
216.54.97.100	AS22773 Cox Communications Inc.	`5.32ms` from Ashburn, US
71.207.133.196	AS7922 Comcast Cable Communications, LLC	`8.58ms` from Ashburn, US
40.121.132.244	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
223.223.190.196	AS4847 China Networks Inter-Exchange	`3.02ms` from Beijing, CN
78.131.56.132	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`0.79ms` from Budapest, HU
38.159.70.180	AS52307 CORPICO LTDA	`14.35ms` from Buenos Aires, AR
93.207.216.196	AS3320 Deutsche Telekom AG	`5.13ms` from Frankfurt am Main, DE
65.34.254.244	AS7922 Comcast Cable Communications, LLC	`5.05ms` from Miami, US
200.196.212.4	AS14346 Agencia Estado Ltda	`0.91ms` from Osasco, BR
93.112.5.132	AS25019 Saudi Telecom Company JSC	`0.81ms` from Riyadh, SA
206.189.77.20	AS14061 DigitalOcean, LLC	`0.27ms` from San Jose, US
153.141.187.36	AS4713 NTT DOCOMO BUSINESS,Inc.	`18.46ms` from Tokyo, JP
2.182.80.68	AS58224 Iran Telecommunication Company PJS	`16.56ms` from Yerevan, AM
42.232.59.4	AS4837 CHINA UNICOM China169 Backbone	`3.32ms` from Zhengzhou, CN
87.233.136.36	AS15703 TrueServer BV AS number	`0.37ms` from Amsterdam, NL
110.20.70.132	AS4804 Microplex PTY LTD	`3.55ms` from Brisbane, AU
129.16.12.20	AS2841 Chalmers University of Technology	`0.91ms` from Goeteborg, SE
183.165.111.148	AS4134 CHINANET-BACKBONE	`7.67ms` from Huai'an, CN
36.147.113.36	AS9808 China Mobile Communications Group Co., Ltd.	`7.34ms` from Kunming, CN
188.130.219.180	AS35048 Biterika Group LLC	`0.38ms` from Moscow, RU
160.248.215.4	AS2514 NTT PC Communications, Inc.	`4.22ms` from Osaka, JP
38.180.7.52	AS9009 M247 Europe SRL	`0.30ms` from Tokyo, JP
71.63.5.148	AS7922 Comcast Cable Communications, LLC	`9.84ms` from Washington, US
70.121.107.164	AS11427 Charter Communications Inc	`13.20ms` from Dallas, US
194.75.29.4	AS6871 Plusnet	`4.26ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f4 104.19.150.100

traceroute to 104.19.150.100 (104.19.150.100): 64 hops max, 52 byte packets

4 [AS13335] 172.69.220.2 0.686 ms

5 [AS13335] 104.19.150.100 0.225 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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