66.76.128.0/18

AS19108 · Optimum

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Summary

Country	United States
Domain	optimum.com
ASN	AS19108
Registry	ARIN
ID	SUDDE-NETBLK-66-76-0-0

WHOIS Details

NetHandle:      NET-66-76-0-0-1
OrgID:          SUDDE
Parent:         NET-66-0-0-0-0
NetName:        SUDDE-NETBLK-66-76-0-0
NetRange:       66.76.0.0 - 66.76.255.255
NetType:        allocation
Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
RegDate:        2001-02-06
Updated:        2012-03-20
AbuseHandle:    ABUSE1394-ARIN
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:      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:      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:      ABUSE1394-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         1021 ESE Loop 323
Street:         Suite 100
City:           Tyler
State/Prov:     TX
Country:        US
PostalCode:     75701
RegDate:        2006-08-10
Updated:        2015-06-02
OfficePhone:    +1-903-266-4800
Mailbox:        abuse@suddenlink.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


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

Hosted domains

There are 134 domain names hosted across 57 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
66.76.172.212	homeworkhotline.tv	17
66.76.154.222	woscgreenbucks.com	15
66.76.177.192	fisherz.org	2
66.76.142.188	tppba.org	2
66.76.184.216	nocra.sh	2
66.76.129.139	heblokk.net	2
66.76.142.191	askchris.org	2
66.76.154.203	herringprivatebank.com	2
66.76.174.210	odchc.org	1
66.76.191.43	pitchwitch.com	1
66.76.129.185	landmassociates.com	1
66.76.140.138	ezvantage.org	1
66.76.135.77	snwinvestments.com	1
66.76.128.234	businesshostedvoice.com	1
66.76.183.187	lubbocktelcom.net	1
66.76.134.75	tdocss.net	1
66.76.136.162	ag-risk.co	1
66.76.154.205	cossb.mobi	1
66.76.154.249	herringtrust.com	1
66.76.154.138	ethiconhvac.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

1,613 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
66.76.187.1	AS19108 Optimum	`3.24ms` from Dallas, US
66.76.132.1	AS19108 Optimum	`14.04ms` from Chicago, US
66.76.139.205	AS19108 Optimum	`4.83ms` from Dallas, US
66.76.178.1	AS19108 Optimum	`5.36ms` from Dallas, US
66.76.135.1	AS19108 Optimum	`7.13ms` from Dallas, US
66.76.186.1	AS19108 Optimum	`2.70ms` from Dallas, US
66.76.191.11	AS19108 Optimum	`31.06ms` from Chicago, US
66.76.129.1	AS19108 Optimum	`22.81ms` from Chicago, US
66.76.179.33	AS19108 Optimum	`9.42ms` from Dallas, US
66.76.138.1	AS19108 Optimum	`13.81ms` from Dallas, US
66.76.185.1	AS19108 Optimum	`7.29ms` from Dallas, US
66.76.142.1	AS19108 Optimum	`13.91ms` from Dallas, US
66.76.172.165	AS19108 Optimum	`0.91ms` from Santa Clara, US
66.76.168.65	AS19108 Optimum	`5.38ms` from Dallas, US
66.76.148.129	AS19108 Optimum	`6.84ms` from Dallas, US
66.76.143.1	AS19108 Optimum	`5.36ms` from Dallas, US
66.76.160.1	AS19108 Optimum	`5.40ms` from Dallas, US
66.76.137.1	AS19108 Optimum	`11.82ms` from Dallas, US
66.76.189.1	AS19108 Optimum	`16.23ms` from Chicago, US
66.76.161.1	AS19108 Optimum	`5.40ms` from Dallas, US
66.76.174.65	AS19108 Optimum	`5.71ms` from San Jose, US
66.76.182.1	AS19108 Optimum	`9.62ms` from Dallas, US
66.76.149.10	AS19108 Optimum	`6.21ms` from Dallas, US
66.76.133.1	AS19108 Optimum	`14.32ms` from Chicago, US
66.76.130.1	AS19108 Optimum	`17.65ms` from Chicago, 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
32.141.149.146	AS7018 AT&T Enterprises, LLC	`1.27ms` from Ashburn, US
62.74.205.242	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`0.96ms` from Athens, GR
50.226.30.162	AS7922 Comcast Cable Communications, LLC	`1.22ms` from Boston, US
32.48.246.162	AS7018 AT&T Enterprises, LLC	`4.39ms` from Chicago, US
34.240.178.226	AS16509 Amazon.com, Inc.	`0.24ms` from Dublin, IE
79.253.113.178	AS3320 Deutsche Telekom AG	`6.85ms` from Frankfurt am Main, DE
98.67.201.242	AS8075 Microsoft Corporation	`0.23ms` from Frankfurt am Main, DE
14.166.116.82	AS45899 VNPT Corp	`2.38ms` from Hanoi, VN
13.32.34.114	AS16509 Amazon.com, Inc.	`0.18ms` from Hong Kong, HK
12.50.220.66	AS7018 AT&T Enterprises, LLC	`2.85ms` from Houston, US
64.45.190.194	AS397780 Alma Telephone Company	`2.84ms` from Kansas City, US
109.170.164.130	AS5413 Wavenet Limited	`2.92ms` from London, GB
191.93.221.98	AS27831 Colombia Móvil	`7.67ms` from Medellin, CO
79.18.117.114	AS3269 Telecom Italia S.p.A.	`19.23ms` from Milan, IT
79.54.237.98	AS3269 Telecom Italia S.p.A.	`7.47ms` from Milan, IT
103.113.160.2	AS137564 KUDOSHUB TECHNOLOGIES PRIVATE LIMITED	`0.20ms` from Mumbai, IN
65.35.222.146	AS33363 Charter Communications, Inc	`9.22ms` from Orlando, US
219.121.232.226	AS18121 Ishikawa Computer Center Co.,LTD.	`3.85ms` from Osaka, JP
42.150.141.210	AS9824 JCOM Co., Ltd.	`18.56ms` from Osaka, JP
72.223.61.82	AS22773 Cox Communications Inc.	`4.99ms` from Phoenix, US
179.218.83.18	AS28573 Claro NXT Telecomunicacoes Ltda	`5.99ms` from Rio de Janeiro, BR
185.164.27.2	AS202105 WafaiNet	`0.37ms` from Riyadh, SA
172.184.117.50	AS8075 Microsoft Corporation	`0.59ms` from San Jose, US
114.117.115.2	AS45090 Shenzhen Tencent Computer Systems Company Limited	`5.38ms` from Shenzhen, CN
202.213.246.2	AS2527 Sony Network Communications Inc.	`0.76ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f6 66.76.183.99

traceroute to 66.76.183.99 (66.76.183.99): 64 hops max, 52 byte packets

6 [AS3491] 63.218.23.133 0.735 ms

7 *

8 *

9 [AS3356] 67.72.0.34 1.236 ms

10 *

11 *

12 [AS19108] 66.76.183.99 22.294 ms

Measurement taken from

IPinfo ProbeNet in Dallas, US

On August 28th 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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