1. All IP Ranges
  2. 24.0.0.0/8
  3. 24.121.0.0/16
  4. AS19108  | 24.121.128.0/17

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
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:      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:        2025-12-18
OfficePhone:    +1-516-803-2300
Mailbox:        hostmaster@cv.net
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:        2025-12-19
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:        2025-12-18
OfficePhone:    +1-866-232-5455
Mailbox:        hostmaster@alticeusa.com
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:        2025-12-19
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
24.121.148.0/22 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
24.121.148.0/22 AS19108 CABLEVISION OF ST. JOSEPH 1,024
24.121.83.0/24 AS19108 CABLEVISION OF ST. JOSEPH 256
24.121.88.0/24 AS19108 Kingman Regional Medical Center 256

Hosted domains

There are 24 domain names hosted across 19 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
24.121.195.179 commanderscotty.com 2
24.121.190.97 spaziani.me 2
24.121.212.234 mckseniorcenter.com 2
24.121.212.204 fksinvestments.com 2
24.121.140.8 bumpitforthem.org 2
24.121.191.26 vault-33.us 2
24.121.154.140 xn--pga.co 1
24.121.225.68 iig-dev.com 1
24.121.224.126 payson-arizona.net 1
24.121.228.34 amipcm.com 1
24.121.211.8 pollyschiro.com 1
24.121.197.250 sedonacougar.com 1
24.121.249.131 tjlitho.com 1
24.121.225.10 lapazassessor.com 1
24.121.223.8 idealdb.com 1
24.121.181.207 fizzcraft.xyz 1
24.121.212.202 biztechinfo.biz 1
24.121.221.100 butnerhoaservices.com 1
24.121.192.29 teamwaltersracing.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

1,325 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
24.121.159.214 AS19108 Optimum 11.87ms from Phoenix, US
24.121.206.23 AS19108 Optimum 12.60ms from Phoenix, US
24.121.223.1 AS19108 Optimum 7.59ms from San Jose, US
24.121.229.1 AS19108 Optimum 4.98ms from Phoenix, US
24.121.204.1 AS19108 Optimum 6.13ms from Phoenix, US
24.121.201.204 AS19108 Optimum 16.38ms from San Jose, US
24.121.226.254 AS19108 Optimum 5.75ms from Phoenix, US
24.121.197.66 AS19108 Optimum 12.16ms from Phoenix, US
24.121.178.1 AS19108 Optimum 4.01ms from Phoenix, US
24.121.208.1 AS19108 Optimum 3.79ms from Phoenix, US
24.121.251.108 AS19108 Optimum 11.99ms from Phoenix, US
24.121.176.1 AS19108 Optimum 5.13ms from Phoenix, US
24.121.161.31 AS19108 Optimum 12.80ms from Phoenix, US
24.121.249.129 AS19108 Optimum 4.01ms from Phoenix, US
24.121.244.1 AS19108 Optimum 4.02ms from Phoenix, US
24.121.139.79 AS19108 Optimum 9.84ms from Phoenix, US
24.121.154.1 AS19108 Optimum 4.96ms from Phoenix, US
24.121.199.1 AS19108 Optimum 5.87ms from Phoenix, US
24.121.202.1 AS19108 Optimum 22.06ms from San Jose, US
24.121.207.98 AS19108 Optimum 9.42ms from Phoenix, US
24.121.227.1 AS19108 Optimum 4.00ms from Phoenix, US
24.121.243.1 AS19108 Optimum 4.06ms from Phoenix, US
24.121.190.1 AS19108 Optimum 5.89ms from Phoenix, US
24.121.211.1 AS19108 Optimum 5.24ms from Phoenix, US
24.121.131.0 AS19108 Optimum 44.38ms from Dallas, 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
46.21.147.1 AS29802 HIVELOCITY, Inc. 1.04ms from Amsterdam, NL
178.84.142.1 AS33915 Vodafone Libertel B.V. 3.52ms from Amsterdam, NL
94.209.41.1 AS33915 Vodafone Libertel B.V. 1.07ms from Amsterdam, NL
94.211.154.1 AS33915 Vodafone Libertel B.V. 2.33ms from Amsterdam, NL
82.217.50.1 AS33915 Vodafone Libertel B.V. 1.29ms from Amsterdam, NL
216.162.118.129 AS16478 Colonial IU 20 9.61ms from Ashburn, US
170.176.253.1 AS16433 NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION 10.29ms from Atlanta, US
64.24.121.161 AS7029 Windstream Communications LLC 6.60ms from Atlanta, US
185.235.234.1 AS8881 1&1 Versatel GmbH 1.17ms from Berlin, DE
207.136.231.81 AS5738 FirstLight Fiber, Inc. 3.34ms from Boston, US
158.197.59.1 AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET 5.63ms from Bratislava, SK
152.168.74.1 AS7303 Telecom Argentina S.A. 1.34ms from Buenos Aires, AR
190.247.107.1 AS7303 Telecom Argentina S.A. 4.72ms from Buenos Aires, AR
186.136.42.1 AS7303 Telecom Argentina S.A. 6.95ms from Buenos Aires, AR
204.191.64.1 AS852 TELUS Communications Inc. 1.40ms from Calgary, CA
197.93.154.1 AS20011 Dimension Data 2.08ms from Cape Town, ZA
201.242.139.113 AS8048 CANTV Servicios, Venezuela 2.21ms from Caracas, VE
24.167.188.1 AS11426 Charter Communications Inc 8.92ms from Charlotte, US
160.2.157.1 AS11492 CABLE ONE, INC. 12.80ms from Chicago, US
97.83.64.1 AS20115 Charter Communications LLC 10.60ms from Chicago, US
12.196.211.161 AS7018 AT&T Enterprises, LLC 5.99ms from Chicago, US
91.242.76.1 AS207246 NETSAT_DV_SRL 0.51ms from Chisinau, MD
198.101.226.65 AS33070 Rackspace Hosting 1.13ms from Dallas, US
69.145.98.113 AS33588 Charter Communications LLC 1.00ms from Denver, US
202.37.52.49 AS152637 Comilla Cable TV Online 1.86ms from Dhaka, BD

Traceroute

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

$
traceroute -a -n -q1 -m6 24.121.254.246
traceroute to 24.121.254.246 (24.121.254.246): 6 hops max, 52 byte packets
1 [AS7195] 200.25.32.194 0.126 ms
2 *
3 [AS174] 154.24.76.229 3.053 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Santiago de Queretaro, MX
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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