66.76.176.0/20

AS19108 · Optimum

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Summary

Country	United States
Domain	optimum.com
ASN	AS19108
Parent Range	66.76.0.0/16
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:      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:      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:      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:      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

Overlapping Ranges

BGP prefixes that contain 66.76.176.0/20

Range	ASN	Company	Num of IPs
66.76.0.0/16	AS400947	Optimum	65,536
66.76.0.0/16	AS19108	Optimum	65,536

Nearby Ranges

BGP prefixes that overlap with 66.76.0.0/16

Range	ASN	Company	Num of IPs
66.76.0.0/16	AS19108	Optimum	65,536
66.76.0.0/16	AS400947	Optimum	65,536

Hosted domains

There are 50 domain names hosted across 20 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
66.76.179.173	lubbockairport.org	4
66.76.177.192	fisherz.org	2
66.76.188.188	trisud.site	1
66.76.190.162	ecctechservice.com	1
66.76.182.24	kbpcol.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

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

IP Address	ASN	Details
66.76.181.1	AS19108 Optimum	`8.23ms` from Dallas, US
66.76.177.1	AS19108 Optimum	`8.27ms` from Dallas, US
66.76.188.94	AS19108 Optimum	`0.37ms` from Dallas, US
66.76.176.1	AS19108 Optimum	`16.48ms` from Dallas, US
66.76.191.1	AS19108 Optimum	`13.64ms` from Ashburn, US
66.76.184.1	AS19108 Optimum	`2.40ms` from Dallas, US
66.76.179.33	AS19108 Optimum	`9.46ms` from Dallas, US
66.76.190.1	AS19108 Optimum	`20.45ms` from Chicago, US
66.76.189.1	AS19108 Optimum	`17.47ms` from Chicago, US
66.76.183.1	AS19108 Optimum	`9.45ms` from Dallas, US
66.76.186.2	AS19108 Optimum	`2.60ms` from Dallas, US
66.76.185.55	AS19108 Optimum	`8.74ms` from Dallas, US
66.76.180.1	AS19108 Optimum	`8.27ms` from Dallas, US
66.76.182.1	AS19108 Optimum	`9.45ms` from Dallas, US
66.76.187.1	AS19108 Optimum	`3.22ms` from Dallas, US
66.76.178.1	AS19108 Optimum	`8.26ms` 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
172.255.231.100	AS7979 Servers.com, Inc.	`0.38ms` from Amsterdam, NL
185.4.253.196	AS60372 EagleNet s.a.r.l.	`2.61ms` from Beirut, LB
217.245.38.148	AS3320 Deutsche Telekom AG	`3.34ms` from Hamburg, DE
36.71.36.20	AS7713 PT Telekomunikasi Indonesia	`12.11ms` from Jakarta, ID
113.227.195.68	AS4837 CHINA UNICOM China169 Backbone	`7.78ms` from Liaoyang, CN
184.28.231.180	AS16625 Akamai Technologies, Inc.	`0.65ms` from Los Angeles, US
76.175.97.20	AS20001 Charter Communications Inc	`4.19ms` from Los Angeles, US
171.107.217.228	AS4134 CHINANET-BACKBONE	`7.98ms` from Nanning, CN
84.160.117.212	AS3320 Deutsche Telekom AG	`5.59ms` from Nuernberg, DE
78.194.254.212	AS12322 Free SAS	`10.63ms` from Paris, FR
119.199.201.244	AS4766 Korea Telecom	`7.91ms` from Seoul, KR
175.199.68.196	AS4766 Korea Telecom	`6.92ms` from Seoul, KR
58.239.1.180	AS9318 SK Broadband Co Ltd	`7.41ms` from Seoul, KR
93.183.148.4	AS25374 ESCOM Ltd. - Haskovo	`5.38ms` from Sofia, BG
113.37.85.68	AS17506 ARTERIA Networks Corporation	`0.94ms` from Tokyo, JP
185.95.199.244	AS39507 Biznes Swiatlowodem Sp. z o.o.	`6.12ms` from Warsaw, PL
217.97.75.4	AS5617 Orange Polska Spolka Akcyjna	`2.01ms` from Wrocław, PL
217.26.126.4	AS35260 Bizway BV	`0.47ms` from Amsterdam, NL
20.214.11.228	AS8075 Microsoft Corporation	`0.23ms` from Dongnae, KR
2.23.79.84	AS16625 Akamai Technologies, Inc.	`0.42ms` from Duesseldorf, DE
91.12.191.84	AS3320 Deutsche Telekom AG	`8.62ms` from Frankfurt am Main, DE
213.64.159.52	AS3301 Telia Company AB	`2.94ms` from Goeteborg, SE
139.255.224.20	AS9905 Linknet ASN	`1.60ms` from Jakarta, ID
91.239.48.20	AS25143 Company "Zagalni Merezhi" Ltd	`3.73ms` from Khmelnytskyi, UA
88.26.246.148	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.17ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f2 66.76.183.204

traceroute to 66.76.183.204 (66.76.183.204): 64 hops max, 52 byte packets

2 [AS9002] 87.245.232.244 78.141 ms

3 *

4 *

5 [AS3356] 67.72.0.34 203.745 ms

6 *

7 *

8 [AS19108] 66.76.183.204 207.975 ms

Measurement taken from

IPinfo ProbeNet in Novosibirsk, RU

On December 6th 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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