Data as of Nov 12, 2026
104.246.3.0/24
1 residential-proxy exit · 30 daysCablevision Systems Corp. · space held by Optimum Online
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 13, 2026 – Nov 11, 2026
Exits seen per day
2 observations
Proxy providers listing exits
- B2Proxy
- EZProxies
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 104.246.0.0/17 | 32,768 | NETBLK-OOL-13BLK | Optimum Online (OPTO) · US | Direct Allocation | Dec 9, 2014 | hostmaster@ |
| └ 104.246.0.0/21 | 2,048 | OOL-CPE-OKLDNJ-104-246-0-0-21 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 104.246.0.0/17
- Prefix
- 104.246.0.0/17
- Announced by
- AS6128 Cablevision Systems Corp.
- Type
- Residential
- Proxy exits
- 450
- Always-on exits
- 93
- RPKI
- RPKI valid
- Netname
- NETBLK-OOL-13BLK
- 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 104.246.0.0/17
104.246.0.0/17
Routing history
- Pattern
- Stable
- First seen
- Jan 2015
- Current origin since
- Jan 2015 · 12 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 104.246.0.0/17 | AS6128 | /24 | ARIN | RPKI valid |
IRR
Route objects on 104.246.0.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6128 | ARIN | 111 new south RD | MNT-OPTO | Oct 13, 2022 |
Whois
Registration for this announcement
- Range
- 104.
246. 0. 0/ 17 - Netname
- NETBLK-OOL-13BLK
- Registrant
- Optimum Online
- Organization
- Optimum Online (OPTO)
- Org address
- 111 new south RD, Hicksville, NY, 11801
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-104-246-0-0-1
- Parent
- NET-104-0-0-0-0
- Created
- Dec 9, 2014
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 9, 2014
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
alticeusa. com - Name
- OOL Hostmaster
- Phone
- +1-516-803-2300
- Handle
- OH4-ORG-ARIN