1. All IP Ranges
  2. 66.0.0.0/8
  3. 66.76.0.0/16
  4. AS19108  | 66.76.0.0/16

66.76.0.0/16

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:        2025-12-18
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:        2025-12-19
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:        2025-12-19
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


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

Nearby Ranges

BGP prefixes that overlap with 66.0.0.0/8

Range ASN Company Num of IPs
66.120.0.0/13 AS22352 AT&T Enterprises, LLC 524,288
66.136.0.0/13 AS16788 AT&T Enterprises, LLC 524,288
66.120.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.136.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.192.0.0/14 AS32617 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3549 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS394750 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS29819 Verizon Business 262,144
66.192.0.0/14 AS13755 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS395760 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS14467 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS30258 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS32268 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS394171 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS33745 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29921 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS62478 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS18929 Level 3 Parent, LLC 262,144
66.12.0.0/14 AS701 Verizon Business 262,144
66.192.0.0/14 AS13628 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS395837 Level 3 Parent, LLC 262,144
66.104.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS11402 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29707 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS23314 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29985 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS35863 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS3356 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS400057 Level 3 Parent, LLC 262,144
66.92.0.0/15 AS3257 GTT Americas, LLC 131,072
66.92.0.0/15 AS11696 GTT Americas, LLC 131,072
66.20.0.0/15 AS2386 AT&T Enterprises, LLC 131,072
66.166.0.0/15 AS3257 GTT Americas, LLC 131,072
66.74.0.0/15 AS11427 Charter Communications Inc 131,072
66.66.0.0/15 AS11351 Charter Communications Inc 131,072
66.2.0.0/15 AS2828 Verizon Business 131,072
66.20.0.0/15 AS63238 AT&T Enterprises, LLC 131,072
66.68.0.0/15 AS11427 Charter Communications Inc 131,072
66.74.0.0/15 AS7224 Charter Communications Inc 131,072
66.88.0.0/15 AS2828 Verizon Business 131,072
66.144.0.0/15 AS19902 Department of Administrative Services 131,072
66.100.0.0/15 AS46854 CenturyLink Communications, LLC 131,072
66.100.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
66.20.0.0/15 AS23199 AT&T Enterprises, LLC 131,072
66.100.0.0/15 AS27328 CenturyLink Communications, LLC 131,072
66.20.0.0/15 AS6389 AT&T Enterprises, LLC 131,072
66.30.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072
66.130.0.0/15 AS5769 Videotron Ltee 131,072
66.74.0.0/15 AS20001 Charter Communications Inc 131,072

Hosted domains

There are 2,340 domain names hosted across 239 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
66.76.209.125 pittccnetlab.net 1
66.76.210.116 meigseaccess.com 1
66.76.210.92 rekknet.com 1
66.76.209.174 sciofnc.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

6,757 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
66.76.70.1 AS19108 Optimum 5.18ms from Dallas, US
66.76.187.1 AS19108 Optimum 3.12ms from Dallas, US
66.76.27.249 AS19108 Optimum 3.27ms from Dallas, US
66.76.130.1 AS19108 Optimum 6.77ms from Dallas, US
66.76.199.1 AS19108 Optimum 7.25ms from Ashburn, US
66.76.206.1 AS19108 Optimum 21.22ms from Chicago, US
66.76.83.1 AS19108 Optimum 17.01ms from Chicago, US
66.76.92.1 AS19108 Optimum 15.03ms from Chicago, US
66.76.90.1 AS19108 Optimum 3.10ms from Dallas, US
66.76.93.45 AS19108 Optimum 11.98ms from Dallas, US
66.76.69.177 AS19108 Optimum 9.77ms from Dallas, US
66.76.40.1 AS19108 Optimum 14.38ms from Ashburn, US
66.76.44.72 AS19108 Optimum 3.08ms from Dallas, US
66.76.46.193 AS19108 Optimum 4.62ms from Dallas, US
66.76.143.1 AS19108 Optimum 8.21ms from Dallas, US
66.76.211.1 AS19108 Optimum 16.83ms from Chicago, US
66.76.202.4 AS19108 Optimum 0.54ms from Dallas, US
66.76.50.1 AS19108 Optimum 5.15ms from Dallas, US
66.76.205.1 AS19108 Optimum 12.78ms from Dallas, US
66.76.33.1 AS19108 Optimum 2.79ms from Dallas, US
66.76.128.233 AS19108 Optimum 0.17ms from Dallas, US
66.76.137.1 AS19108 Optimum 12.37ms from Dallas, US
66.76.134.1 AS19108 Optimum 20.14ms from Chicago, US
66.76.94.1 AS19108 Optimum 21.86ms from Chicago, US
66.76.9.197 AS19108 Optimum 1.44ms 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
23.63.126.16 AS16625 Akamai Technologies, Inc. 0.33ms from Berlin, DE
118.121.61.48 AS38283 CHINANET SiChuan Telecom Internet Data Center 1.94ms from Chengdu, CN
3.18.217.160 AS16509 Amazon.com, Inc. 0.13ms from Columbus, US
24.6.119.144 AS7922 Comcast Cable Communications, LLC 5.39ms from Fremont, US
83.182.119.64 AS1257 Tele2 Sverige AB 0.48ms from Goeteborg, SE
213.133.92.160 AS35432 Cablenet Communication Systems plc 4.46ms from Larnaca, CY
34.129.68.112 AS396982 Google LLC 0.10ms from Melbourne, AU
49.64.230.240 AS4134 CHINANET-BACKBONE 4.33ms from Nanjing, CN
88.185.225.240 AS12322 Free SAS 7.66ms from Paris, FR
82.121.138.112 AS3215 Orange S.A. 1.87ms from Paris, FR
20.200.255.208 AS8075 Microsoft Corporation 0.30ms from Seoul, KR
123.254.91.0 AS9698 LG HelloVision Corp. 5.25ms from Seoul, KR
1.160.15.192 AS3462 Data Communication Business Group 1.24ms from Taipei, TW
124.163.194.192 AS4837 CHINA UNICOM China169 Backbone 2.57ms from Taiyuan, CN
153.170.7.48 AS4713 NTT DOCOMO BUSINESS,Inc. 3.56ms from Tokyo, JP
172.240.184.112 AS7979 Servers.com, Inc. 0.16ms from Ashburn, US
98.230.103.192 AS7922 Comcast Cable Communications, LLC 12.30ms from Atlanta, US
78.99.219.32 AS6855 Slovak Telekom, a.s. 4.45ms from Bratislava, SK
82.208.132.16 AS12302 Vodafone Romania S.A. 2.56ms from Bucharest, RO
71.90.181.96 AS20115 Charter Communications LLC 17.56ms from Dallas, US
174.174.149.16 AS7922 Comcast Cable Communications, LLC 8.84ms from Flint, US
84.158.24.32 AS3320 Deutsche Telekom AG 8.09ms from Frankfurt am Main, DE
213.48.16.176 AS5089 Virgin Media Limited 2.34ms from London, GB
78.141.131.48 AS6661 POST Luxembourg 14.70ms from Luxembourg, LU
80.39.210.64 AS3352 TELEFONICA DE ESPANA S.A.U. 1.34ms 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 -f3 66.76.217.91
traceroute to 66.76.217.91 (66.76.217.91): 64 hops max, 52 byte packets
4 *
5 *
6 *
7 *
8 [AS19108] 66.76.217.91 57.943 ms
Measurement taken from IPinfo ProbeNet in Ashburn, US
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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