72.203.208.0/21

AS22773 · Cox Communications Inc.

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Summary

Country	United States
Domain	cox.com
ASN	AS22773
Parent Range	72.192.0.0/11
Registry	ARIN
ID	NETBLK-DC-CBS-72-203-208-0

WHOIS Details

NetHandle:      NET-72-203-208-0-1
OrgID:          C07018638
Parent:         NET-72-192-0-0-1
NetName:        NETBLK-DC-CBS-72-203-208-0
NetRange:       72.203.208.0 - 72.203.215.255
NetType:        reassignment
RegDate:        2018-07-09
Updated:        2018-07-09
Source:         ARIN


OrgID:          C07018638
OrgName:        Cox Communications Inc.
CanAllocate:    
Street:         1400 Lake Hearn DR.
City:           Atlanta
State/Prov:     GA
Country:        US
PostalCode:     30319
RegDate:        2018-07-09
Updated:        2018-07-09
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 72.203.208.0/21

Range	ASN	Company	Num of IPs
72.192.0.0/11	AS22773	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS395883	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS396389	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS62957	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS64019	Cox Communications Inc.	2,097,152

Nearby Ranges

BGP prefixes that overlap with 72.203.0.0/16

Range	ASN	Company	Num of IPs
72.192.0.0/11	AS395883	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS22773	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS396389	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS62957	Cox Communications Inc.	2,097,152
72.192.0.0/11	AS64019	Cox Communications Inc.	2,097,152
72.203.64.0/18	AS22773	Cox Communications Inc.	16,384
72.203.0.0/18	AS22773	Cox Communications Inc.	16,384
72.203.128.0/19	AS22773	Cox Communications	8,192
72.203.176.0/20	AS22773	Cox Communications Inc.	4,096
72.203.160.0/20	AS22773	Cox Communications	4,096
72.203.228.0/22	AS22773	Cox Communications Inc.	1,024
72.203.192.0/22	AS22773	Cox Communications Inc.	1,024
72.203.232.0/23	AS22773	Cox Communications Inc.	512
72.203.236.0/23	AS22773	Cox Communications	512
72.203.197.0/24	AS22773	Cox Communications Inc.	256
72.203.222.0/24	AS393991	ONE NEVADA CREDIT UNION	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
72.203.210.163	by-analytics.com	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
72.203.213.193	AS22773 Cox Communications Inc.	`1.10ms` from Ashburn, US
72.203.212.33	AS22773 Cox Communications Inc.	`0.95ms` from Ashburn, US
72.203.215.1	AS22773 Cox Communications Inc.	`2.22ms` from Ashburn, US
72.203.214.163	AS22773 Cox Communications Inc.	`0.84ms` from Ashburn, US
72.203.210.1	AS22773 Cox Communications Inc.	`1.02ms` from Ashburn, US
72.203.209.33	AS22773 Cox Communications Inc.	`1.13ms` from Ashburn, US
72.203.208.129	AS22773 Cox Communications Inc.	`1.20ms` from Ashburn, US
72.203.211.161	AS22773 Cox Communications Inc.	`0.96ms` from Ashburn, US

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
18.239.53.69	AS16509 Amazon.com, Inc.	`0.35ms` from Amsterdam, NL
159.8.253.229	AS36351 IBM Cloud	`1.12ms` from Amsterdam, NL
204.15.45.5	AS16942 Citizens Telephone Cooperative	`15.79ms` from Ashburn, US
102.42.70.165	AS8452 TE-AS	`3.87ms` from Cairo, EG
206.74.119.5	AS2711 Spirit Communications	`3.02ms` from Charlotte, US
87.168.151.133	AS3320 Deutsche Telekom AG	`3.97ms` from Duesseldorf, DE
205.237.137.245	AS13927 KanOkla Communications, LLC	`6.02ms` from Kansas City, US
195.216.14.149	AS8426 ClaraNET LTD	`1.32ms` from London, GB
176.103.103.37	AS47156 Malnet LTD.	`1.56ms` from Moscow, RU
106.162.175.101	AS2516 KDDI CORPORATION	`0.64ms` from Osaka, JP
45.191.134.229	AS269672 RAUL GONcALO LEITE	`1.36ms` from Osasco, BR
151.145.16.197	AS54253 Oracle Corporation	`1.20ms` from Salt Lake City, US
106.243.181.149	AS3786 LG DACOM Corporation	`1.88ms` from Seoul, KR
4.216.242.37	AS8075 Microsoft Corporation	`0.24ms` from Tokyo, JP
20.123.200.181	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
184.70.122.133	AS6327 Shaw Communications Inc.	`1.15ms` from Calgary, CA
221.206.201.21	AS4837 CHINA UNICOM China169 Backbone	`19.52ms` from Dalian, CN
217.230.107.85	AS3320 Deutsche Telekom AG	`4.74ms` from Frankfurt am Main, DE
130.241.17.21	AS2842 Goteborgs universitet	`0.96ms` from Goeteborg, SE
8.218.242.101	AS45102 Alibaba (US) Technology Co., Ltd.	`0.42ms` from Hong Kong, HK
223.119.190.37	AS58453 China Mobile International Limited	`0.33ms` from Hong Kong, HK
194.169.238.213	AS41834 LLC "MTI GROUP"	`0.60ms` from Kyiv, UA
86.16.107.85	AS5089 Virgin Media Limited	`8.13ms` from London, GB
77.198.19.5	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`7.11ms` from Lyon, FR
76.101.35.117	AS7922 Comcast Cable Communications, LLC	`7.70ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 72.203.211.59

traceroute to 72.203.211.59 (72.203.211.59): 64 hops max, 52 byte packets

1 [AS15169] 142.251.52.186 1.413 ms

2 *

3 [AS22773] 68.1.1.7 2.286 ms

4 *

5 [AS22773] 72.203.211.59 10.813 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On October 17th 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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