Whois & RDAP Lookup

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68.198.104.0/21

WHOIS
Abuse Contact[email protected]
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Raw WHOIS response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#



# start

NetRange:       68.192.0.0 - 68.199.255.255
CIDR:           68.192.0.0/13
NetName:        NETBLK-OOL-5BLK
NetHandle:      NET-68-192-0-0-1
Parent:         NET68 (NET-68-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Optimum Online (OPTO)
RegDate:        2003-01-29
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/ip/68.192.0.0



OrgName:        Optimum Online
OrgId:          OPTO
Address:        111 new south RD
City:           Hicksville
StateProv:      NY
PostalCode:     11801
Country:        US
RegDate:        1999-07-29
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/OPTO


OrgAbuseHandle: OH4-ORG-ARIN
OrgAbuseName:   OOL Hostmaster
OrgAbusePhone:  +1-516-803-2300 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/OH4-ORG-ARIN

OrgTechHandle: OH4-ORG-ARIN
OrgTechName:   OOL Hostmaster
OrgTechPhone:  +1-516-803-2300 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/OH4-ORG-ARIN

RTechHandle: OH4-ORG-ARIN
RTechName:   OOL Hostmaster
RTechPhone:  +1-516-803-2300 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/OH4-ORG-ARIN

# end


# start

NetRange:       68.198.104.0 - 68.198.111.255
CIDR:           68.198.104.0/21
NetName:        OOL-CPE-HCVLNY-68-198-104-0-1-21
NetHandle:      NET-68-198-104-0-1
Parent:         NETBLK-OOL-5BLK (NET-68-192-0-0-1)
NetType:        Reassigned
OriginAS:       
Customer:       Optimum Online (Cablevision Systems) (C11258636)
RegDate:        2025-07-01
Updated:        2025-07-01
Ref:            https://rdap.arin.net/registry/ip/68.198.104.0


CustName:       Optimum Online (Cablevision Systems)
Address:        111 New South Road
City:           Hicksville
StateProv:      NY
PostalCode:     11801
Country:        US
RegDate:        2025-07-01
Updated:        2025-07-01
Ref:            https://rdap.arin.net/registry/entity/C11258636

OrgAbuseHandle: OH4-ORG-ARIN
OrgAbuseName:   OOL Hostmaster
OrgAbusePhone:  +1-516-803-2300 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/OH4-ORG-ARIN

OrgTechHandle: OH4-ORG-ARIN
OrgTechName:   OOL Hostmaster
OrgTechPhone:  +1-516-803-2300 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/OH4-ORG-ARIN

RTechHandle: OH4-ORG-ARIN
RTechName:   OOL Hostmaster
RTechPhone:  +1-516-803-2300 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/OH4-ORG-ARIN

# end



#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

% Query time: 928 msec
% WHEN: Sat Oct 31 11:12:38 UTC 2026

Frequently asked questions

What is WHOIS?

WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.

What is RDAP, and how does it differ?

RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.

What is the difference between a registrar and a registrant?

The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.

What are nameservers?

Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.

What is DNSSEC?

DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.

Why is the contact information redacted?

Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.