Data as of Nov 9, 2026
24.189.218.0/24
No anonymizer space · no proxy exits in 30 daysCablevision Systems Corp. · space held by Optimum Online
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 24.188.0.0/14 since Oct 2014 | AS6128 | Residential | 5,213 1,364 always on | Optimum Online |
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 |
|---|---|---|---|---|---|---|
| 24.188.0.0/14 | 262,144 | NETBLK-OOL | Optimum Online (OPTO) · US | Direct Allocation | Jul 29, 1999 | abuse@ |
| └ 24.189.218.0/24 | 256 | OOL-CPE-HCVLNY-24-189-218-0-24 | Optimum Online (Cablevision Systems) (C06073231) · US | Reassigned | Mar 21, 2016 | abuse@ via NETBLK-OOL |
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
IPv4 market
Holder
- Organization
- Optimum Online
- Handle
- OPTO
- Range
- 24.
188. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- Jul 29, 1999
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
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2016
- Current origin since
- Jan 2023 · 3.8 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 24.188.0.0/14 | AS6128 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 24.
189. 218. 0/ 24 - Netname
- OOL-CPE-HCVLNY-24-189-218-0-24
- Registrant
- Optimum Online (Cablevision Systems)
- Organization
- Optimum Online (Cablevision Systems) (C06073231)
- Type
- Reassigned
- Handle
- NET-24-189-218-0-1
- Parent
- NET-24-188-0-0-1
- Created
- Mar 21, 2016
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 29, 1999
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
alticeusa. com - Name
- OOL Hostmaster
- Phone
- +1-516-803-2300
- Handle
- OH4-ORG-ARIN