24.121.128.0/17

AS19108 · Optimum

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Summary

Country	United States
Domain	optimum.com
ASN	AS19108
Parent Range	24.121.0.0/16
Registry	ARIN
ID	SUDDE-NETBLK-24-121-0-0

WHOIS Details

NetHandle:      NET-24-121-0-0-1
OrgID:          SUDDE
Parent:         NET-24-0-0-0-0
NetName:        SUDDE-NETBLK-24-121-0-0
NetRange:       24.121.0.0 - 24.121.255.255
NetType:        allocation
OriginAS:       19108
RegDate:        2001-09-20
Updated:        2012-03-20
Source:         ARIN


OrgID:          SUDDE
OrgName:        Optimum
CanAllocate:    
Street:         311 NNW Loop 323
City:           Tyler
State/Prov:     TX
Country:        US
PostalCode:     75701
RegDate:        2006-05-25
Updated:        2025-08-06
OrgAdminHandle: NETAD233-ARIN
OrgTechHandle:  AUIO-ARIN
OrgAbuseHandle: ABUSE6997-ARIN
OrgNOCHandle:   NOCSU37-ARIN
Source:         ARIN


POCHandle:      ABUSE6997-ARIN
IsRole:         Y
LastName:       Abuse Suddenlink
FirstName:      
Street:         311 NNW Loop 323
City:           Tyler
State/Prov:     TX
Country:        US
PostalCode:     75702
RegDate:        2018-02-09
Updated:        2024-10-21
OfficePhone:    +1-903-266-4800
Mailbox:        abuse@suddenlink.net
Source:         ARIN


POCHandle:      NETAD233-ARIN
IsRole:         Y
LastName:       NetAdmin
FirstName:      
Street:         311 NNW Loop 323
City:           Tyler
State/Prov:     TX
Country:        US
PostalCode:     75702
RegDate:        2017-02-03
Updated:        2024-12-06
OfficePhone:    +1-866-232-5455
Mailbox:        hostmaster@alticeusa.com
Source:         ARIN


POCHandle:      AUIO-ARIN
IsRole:         Y
LastName:       Altice USA Internet Operations
FirstName:      
Street:         1111 Stewart Ave.
City:           Bethpage
State/Prov:     NY
Country:        US
PostalCode:     11714
RegDate:        2018-02-05
Updated:        2024-10-21
OfficePhone:    +1-516-803-2300
Mailbox:        hostmaster@cv.net
Source:         ARIN


POCHandle:      NOCSU37-ARIN
IsRole:         Y
LastName:       NOC Suddenlink
FirstName:      
Street:         311 NNW Loop 323
City:           Tyler
State/Prov:     TX
Country:        US
PostalCode:     75701
RegDate:        2018-02-13
Updated:        2024-10-21
OfficePhone:    +1-866-232-5455
Mailbox:        hostmaster@cv.net
Mailbox:        noc@suddenlink.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 24.121.128.0/17

Range	ASN	Company	Num of IPs
24.121.0.0/16	AS19108	Optimum	65,536

BGP prefixes that are contained by 24.121.128.0/17

Range	ASN	Company	Num of IPs
24.121.200.0/22	AS19108	CABLEVISION OF ST. JOSEPH	1,024
24.121.144.0/22	AS19108	CABLEVISION OF MAMMOTHLAKES	1,024
24.121.148.0/22	AS19108	CABLEVISION OF ST. JOSEPH	1,024

Nearby Ranges

BGP prefixes that overlap with 24.121.0.0/16

Range	ASN	Company	Num of IPs
24.121.0.0/16	AS19108	Optimum	65,536
24.121.0.0/17	AS19108	Optimum	32,768
24.121.144.0/22	AS19108	CABLEVISION OF MAMMOTHLAKES	1,024
24.121.200.0/22	AS19108	CABLEVISION OF ST. JOSEPH	1,024
24.121.148.0/22	AS19108	CABLEVISION OF ST. JOSEPH	1,024
24.121.88.0/24	AS19108	Kingman Regional Medical Center	256

Hosted domains

There are 22 domain names hosted across 18 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
24.121.162.76	dynamicanalytics.com	2
24.121.140.8	justagirlsavingdogs.com	2
24.121.212.204	fksinvestments.com	2
24.121.212.234	mckinleyvilleseniorcenter.com	2
24.121.225.68	iig-dev.com	1
24.121.228.34	amipcm.com	1
24.121.212.202	biztechinfo.biz	1
24.121.224.126	payson-arizona.net	1
24.121.225.10	lapazassessor.com	1
24.121.249.131	tjlitho.com	1
24.121.212.232	taysys.com	1
24.121.223.8	idealdb.com	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

1,467 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
24.121.251.108	AS19108 Optimum	10.92ms from Phoenix, US
24.121.206.194	AS19108 Optimum	10.11ms from Phoenix, US
24.121.157.117	AS19108 Optimum	12.35ms from Phoenix, US
24.121.134.1	AS19108 Optimum	4.04ms from Phoenix, US
24.121.172.1	AS19108 Optimum	6.38ms from Phoenix, US
24.121.210.1	AS19108 Optimum	4.93ms from Phoenix, US
24.121.160.1	AS19108 Optimum	5.22ms from Phoenix, US
24.121.181.29	AS19108 Optimum	12.19ms from Phoenix, US
24.121.249.129	AS19108 Optimum	4.02ms from Phoenix, US
24.121.195.183	AS19108 Optimum	11.56ms from Phoenix, US
24.121.173.1	AS19108 Optimum	4.99ms from Phoenix, US
24.121.183.210	AS19108 Optimum	11.53ms from Phoenix, US
24.121.146.207	AS19108 Optimum	18.85ms from San Jose, US
24.121.147.151	AS19108 Optimum	17.58ms from San Jose, US
24.121.225.129	AS19108 Optimum	4.00ms from Phoenix, US
24.121.193.129	AS19108 Optimum	12.12ms from Phoenix, US
24.121.152.1	AS19108 Optimum	4.97ms from Phoenix, US
24.121.212.1	AS19108 Optimum	8.14ms from San Jose, US
24.121.131.0	AS19108 Optimum	46.48ms from Dallas, US
24.121.135.10	AS19108 Optimum	11.23ms from Phoenix, US
24.121.228.1	AS19108 Optimum	4.97ms from Phoenix, US
24.121.253.7	AS19108 Optimum	12.98ms from Phoenix, US
24.121.211.1	AS19108 Optimum	5.25ms from Phoenix, US
24.121.161.31	AS19108 Optimum	14.56ms from Phoenix, US
24.121.247.187	AS19108 Optimum	10.18ms from Phoenix, 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
145.131.251.33	AS28685 Routit BV	3.57ms from Amsterdam, NL
94.209.41.1	AS33915 Vodafone Libertel B.V.	0.92ms from Amsterdam, NL
69.161.104.1	AS11776 Breezeline	4.97ms from Ashburn, US
72.214.45.49	AS22773 Cox Communications Inc.	0.97ms from Ashburn, US
172.208.12.113	AS8075 Microsoft Corporation	0.91ms from Ashburn, US
24.176.71.129	AS20115 Charter Communications LLC	4.92ms from Atlanta, US
69.151.203.17	AS7018 AT&T Enterprises, LLC	9.40ms from Atlanta, US
222.153.144.1	AS4771 Spark New Zealand Trading Ltd.	2.78ms from Auckland, NZ
79.140.120.1	AS15366 DNS:NET Internet Service GmbH	0.44ms from Berlin, DE
201.212.46.1	AS7303 Telecom Argentina S.A.	7.49ms from Buenos Aires, AR
181.168.155.1	AS7303 Telecom Argentina S.A.	16.19ms from Buenos Aires, AR
102.96.227.225	AS36925 MEDITELECOM	19.73ms from Casablanca, MA
125.68.146.1	AS4134 CHINANET-BACKBONE	6.71ms from Chengdu, CN
148.70.40.97	AS45090 Shenzhen Tencent Computer Systems Company Limited	0.80ms from Chengdu, CN
119.7.228.1	AS4837 CHINA UNICOM China169 Backbone	11.90ms from Chengdu, CN
117.175.167.1	AS9808 China Mobile Communications Group Co., Ltd.	3.22ms from Chengdu, CN
118.185.235.17	AS55410 Vodafone Idea Ltd	1.52ms from Chennai, IN
117.236.176.1	AS9829 National Internet Backbone	11.95ms from Chennai, IN
12.221.22.145	AS7018 AT&T Enterprises, LLC	2.35ms from Chicago, US
68.60.246.1	AS7922 Comcast Cable Communications, LLC	9.94ms from Chicago, US
179.83.18.65	AS18881 TELEFÔNICA BRASIL S.A	12.93ms from Curitiba, BR
206.255.108.1	AS53508 Cablelynx	3.90ms from Dallas, US
204.210.200.1	AS10796 Charter Communications Inc	19.40ms from Detroit, US
5.231.238.1	AS12586 GHOSTnet GmbH	0.58ms from Frankfurt am Main, DE
18.158.200.49	AS16509 Amazon.com, Inc.	0.15ms from Frankfurt am Main, DE

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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