Data as of Nov 7, 2026
173.251.56.0/24
1 residential-proxy exit · 30 daysCablevision Systems Corp.
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Always-on exits
1
100% of its exits
Providers
20
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
2.6K observations
Proxy providers listing exits
- 9Proxy
- BottingTools
- ByteProxies
- Byteful
- ColaProxy
- Decodo
- EnigmaProxy
- Geonode
- GloryCloud
- IPFly
- InfiniteProxies
- NovaProxy
- Oxylabs
- Proxiware
- ProxyEmpire
- ProxyGeo
- Proxying
- Proxyma
- ResiProxies
- Thordata
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 212 | 83% | 18 | |
| Residential | 44 | 17% | 5 |
Network & registry
Announced by
Covering announcement 173.251.0.0/17
- Prefix
- 173.251.0.0/17
- Announced by
- AS6128 Cablevision Systems Corp.
- Type
- Residential
- Proxy exits
- 45
- Always-on exits
- 5
- RPKI
- RPKI valid
- Netname
- CVNET-2
- Registrant
- Cablevision Systems Corp.
- 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 173.251.0.0/17
173.251.0.0/17
Routing history
- Pattern
- Stable
- First seen
- Jul 2010
- Current origin since
- Jul 2010 · 16 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 173.251.0.0/17 | AS6128 | /24 | ARIN | RPKI valid |
IRR
Route objects on 173.251.0.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6128 | ARIN | Cablevision Systems Corp. | MNT-CVNT | Jul 26, 2010 |
Whois
Registration for this announcement
- Range
- 173.
251. 0. 0/ 17 - Netname
- CVNET-2
- Registrant
- Cablevision Systems Corp.
- Organization
- Cablevision Systems Corp. (CVNT)
- Org address
- 1111 Stewart Avenue, Bethpage, NY, 11714
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-173-251-0-0-1
- Parent
- NET-173-0-0-0-0
- Created
- Jun 18, 2010
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 18, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cv. net - Name
- OOL Hostmaster
- Phone
- +1-516-803-2400
- Handle
- OOLAB-ARIN