Data as of Nov 15, 2026
47.21.73.136/29
No anonymizer space · no proxy exits in 30 daysCablevision Systems Corp. · space held by Optimum Online
Residential-proxy exits
Proxy exits
1
13% of its addresses · listed by providers
Always-on exits
1
100% of its exits
Providers
19
selling exits here
Proxy providers listing exits
- BirdProxies
- BlurPath
- BottingTools
- GSocks
- GloryCloud
- IPFly
- IPMUSK
- Infatica
- MoMoProxy
- NiuProxy
- NodeProxy
- PROXYSCRAPE
- Proxy-Seller
- Proxyma
- PuraRoute
- RainProxy
- RapidProxy
- Shifter
- SwiftProxy
Network & registry
Announced by
Covering announcement 47.20.0.0/14
- Prefix
- 47.20.0.0/14
- Announced by
- AS6128 Cablevision Systems Corp.
- Type
- Residential
- Proxy exits
- 1,766
- Always-on exits
- 361
- RPKI
- RPKI valid
- Netname
- NETBLK-OOL-11BLK
- Registrant
- Optimum Online
- RIR
- ARIN
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 47.20.0.0/14
47.20.0.0/14
Routing history
- Pattern
- Stable
- First seen
- Oct 2014
- Current origin since
- Oct 2014 · 12 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 47.20.0.0/14 | AS6128 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 47.
20. 0. 0/ 14 - Netname
- NETBLK-OOL-11BLK
- Registrant
- Optimum Online
- Organization
- Optimum Online (OPTO)
- Org address
- 111 new south RD, Hicksville, NY, 11801
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-47-20-0-0-1
- Parent
- NET-47-0-0-0-0
- Created
- Feb 29, 2012
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 29, 2012
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
alticeusa. com - Name
- OOL Hostmaster
- Phone
- +1-516-803-2300
- Handle
- OH4-ORG-ARIN