72.203.0.0/18

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-LV-RES-72-203-0-0

WHOIS Details

NetHandle:      NET-72-203-0-0-1
OrgID:          C06853497
Parent:         NET-72-192-0-0-1
NetName:        NETBLK-LV-RES-72-203-0-0
NetRange:       72.203.0.0 - 72.203.63.255
NetType:        reassignment
RegDate:        2017-12-14
Updated:        2017-12-14
Source:         ARIN


OrgID:          C06853497
OrgName:        Cox Communications Inc.
CanAllocate:    
Street:         1400 Lake Hearn DR.
City:           Atlanta
State/Prov:     GA
Country:        US
PostalCode:     30319
RegDate:        2017-12-14
Updated:        2017-12-14
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 72.203.0.0/18

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	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
72.203.64.0/18	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
72.203.208.0/21	AS22773	Cox Communications Inc.	2,048
72.203.228.0/22	AS22773	Cox Communications Inc.	1,024
72.203.192.0/22	AS22773	Cox Communications Inc.	1,024
72.203.236.0/23	AS22773	Cox Communications	512
72.203.232.0/23	AS22773	Cox Communications Inc.	512
72.203.222.0/24	AS393991	ONE NEVADA CREDIT UNION	256
72.203.197.0/24	AS22773	Cox Communications Inc.	256

Hosted domains

There are 5 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
72.203.48.39	loveandpumpkin.com	1
72.203.42.48	rcinnsight.com	1
72.203.12.204	kaboing.net	1

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

7,590 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
72.203.31.1	AS22773 Cox Communications Inc.	`5.94ms` from Los Angeles, US
72.203.9.107	AS22773 Cox Communications Inc.	`9.48ms` from Los Angeles, US
72.203.17.1	AS22773 Cox Communications Inc.	`6.36ms` from Los Angeles, US
72.203.15.84	AS22773 Cox Communications Inc.	`9.39ms` from Los Angeles, US
72.203.11.3	AS22773 Cox Communications Inc.	`6.23ms` from Los Angeles, US
72.203.7.182	AS22773 Cox Communications Inc.	`6.76ms` from Los Angeles, US
72.203.10.1	AS22773 Cox Communications Inc.	`5.93ms` from Los Angeles, US
72.203.37.1	AS22773 Cox Communications Inc.	`6.19ms` from Los Angeles, US
72.203.21.1	AS22773 Cox Communications Inc.	`6.37ms` from Los Angeles, US
72.203.23.1	AS22773 Cox Communications Inc.	`6.20ms` from Los Angeles, US
72.203.18.1	AS22773 Cox Communications Inc.	`6.59ms` from Los Angeles, US
72.203.22.57	AS22773 Cox Communications Inc.	`6.56ms` from Los Angeles, US
72.203.36.1	AS22773 Cox Communications Inc.	`6.29ms` from Los Angeles, US
72.203.24.1	AS22773 Cox Communications Inc.	`6.24ms` from Los Angeles, US
72.203.4.1	AS22773 Cox Communications Inc.	`5.98ms` from Los Angeles, US
72.203.30.1	AS22773 Cox Communications Inc.	`6.62ms` from Los Angeles, US
72.203.25.233	AS22773 Cox Communications Inc.	`9.31ms` from Los Angeles, US
72.203.8.1	AS22773 Cox Communications Inc.	`6.58ms` from Los Angeles, US
72.203.12.47	AS22773 Cox Communications Inc.	`6.80ms` from Los Angeles, US
72.203.34.1	AS22773 Cox Communications Inc.	`6.59ms` from Los Angeles, US
72.203.19.1	AS22773 Cox Communications Inc.	`6.32ms` from Los Angeles, US
72.203.5.1	AS22773 Cox Communications Inc.	`6.08ms` from Los Angeles, US
72.203.1.1	AS22773 Cox Communications Inc.	`6.33ms` from Los Angeles, US
72.203.28.1	AS22773 Cox Communications Inc.	`6.18ms` from Los Angeles, US
72.203.14.1	AS22773 Cox Communications Inc.	`6.16ms` from Los Angeles, 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
125.37.181.210	AS4837 CHINA UNICOM China169 Backbone	`5.61ms` from Beijing, CN
75.217.237.194	AS6167 Verizon Business	`16.08ms` from Chicago, US
65.141.170.242	AS209 CenturyLink Communications, LLC	`1.35ms` from Denver, US
20.218.243.2	AS8075 Microsoft Corporation	`0.20ms` from Frankfurt am Main, DE
196.38.72.242	AS3741 Dimension Data	`0.60ms` from Johannesburg, ZA
185.100.136.2	AS12357 VODAFONE ESPANA S.A.U.	`7.40ms` from Madrid, ES
223.31.10.34	AS9583 Sify Limited	`1.45ms` from Mumbai, IN
123.158.160.162	AS4837 CHINA UNICOM China169 Backbone	`7.82ms` from Ningbo, CN
3.81.208.66	AS14618 Amazon.com, Inc.	`0.56ms` from Reston, US
217.75.204.82	AS16178 Logosoft d.o.o.	`1.52ms` from Sarajevo, BA
116.236.155.146	AS4812 China Telecom (Group)	`4.26ms` from Shanghai, CN
129.94.164.146	AS23859 University of New South Wales	`0.80ms` from Sydney, AU
20.227.9.82	AS8075 Microsoft Corporation	`0.70ms` from Sydney, AU
93.83.245.82	AS8447 A1 Telekom Austria AG	`2.06ms` from Vienna, AT
77.81.36.114	AS58224 Iran Telecommunication Company PJS	`16.41ms` from Yerevan, AM
91.140.84.178	AS25472 Nova Telecommunications & Media Single Member S.A	`7.87ms` from Athens, GR
85.132.36.50	AS29049 Delta Telecom Ltd	`1.38ms` from Baku, AZ
66.30.121.66	AS7922 Comcast Cable Communications, LLC	`6.95ms` from Boston, US
86.122.107.18	AS8708 DIGI ROMANIA S.A.	`2.51ms` from Bucharest, RO
196.206.229.2	AS6713 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`5.62ms` from Casablanca, MA
97.178.109.114	AS6167 Verizon Business	`16.77ms` from Dallas, US
49.44.141.114	AS55836 Reliance Jio Infocomm Limited	`1.04ms` from Delhi, IN
79.229.138.242	AS3320 Deutsche Telekom AG	`10.12ms` from Frankfurt am Main, DE
59.188.26.210	AS17444 HKBN Enterprise Solutions Limited	`0.58ms` from Hong Kong, HK
146.103.37.162	AS5065 Bunny Communications	`0.22ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f3 72.203.12.33

traceroute to 72.203.12.33 (72.203.12.33): 64 hops max, 52 byte packets

3 [] 138.199.0.107 0.186 ms

4 *

5 [AS22773] 68.1.0.89 6.505 ms

6 [AS22773] 72.203.12.33 10.454 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On December 6th 2025

What are IP address ranges?

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