Data as of Nov 3, 2026
167.206.121.0/24
No anonymizer space · no proxy exits in 30 daysCablevision Systems Corp.
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 167.206.0.0/16 | 65,536 | CVNET | Cablevision Systems Corp. (CVNT-Z) · US | Direct Allocation | Sep 30, 1993 | [email protected] |
| └ 167.206.121.0/24 | 256 | CVNET-A7CE7900 | Cablevision Executive Offices (C00464542) · US | Reassigned | Feb 4, 2003 | [email protected] via CVNET |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Cablevision Systems Corp.
- Handle
- CVNT-Z
- Range
- 167.206.0.0/16
- Registration type
- Direct Allocation
- Record created
- Sep 30, 1993
- Legacy
- yes
Origin network
AS6128
US
- Name
- Cablevision Systems Corp.
- Type
- Internet provider
- Domain
- cablevision.com
- Website
- www.optimum.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2005
- Current origin since
- Apr 2022 · 4.6 yr
- Origin networks
- 2
- Last change of origin
- Apr 2022
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 167.206.121.0/24
- Netname
- CVNET-A7CE7900
- Registrant
- Cablevision Executive Offices
- Organization
- Cablevision Executive Offices (C00464542)
- Type
- Reassigned
- Handle
- NET-167-206-121-0-1
- Parent
- NET-167-206-0-0-1
- Created
- Feb 4, 2003
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 30, 1993
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- OOL Hostmaster
- Phone
- +1-516-803-2400
- Handle
- OOLAB-ARIN