Data as of Nov 7, 2026
173.251.28.168/29
No anonymizer space · no proxy exits in 30 daysCablevision Lightpath LLC · space held by Cablevision Systems Corp.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 173.251.0.0/17 since Jul 2010 | AS6128 | Residential | 45 5 always on | Cablevision Systems Corp. |
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 |
|---|---|---|---|---|---|---|
| 173.251.0.0/17 | 32,768 | CVNET-2 | Cablevision Systems Corp. (CVNT) · US | Direct Allocation | Jun 18, 2010 | abuse@ |
| └ 173.251.28.168/29 | 8 | CVNET-ADFB1CA8 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 173.251.28.0/24
- Prefix
- 173.251.28.0/24
- Announced by
- AS54004 Cablevision Lightpath LLC
- Type
- Business
- RPKI
- RPKI valid
- Netname
- CVNET-2
- Registrant
- Cablevision Systems Corp.
- RIR
- ARIN
Origin network
AS54004
US
- Name
- Cablevision Lightpath LLC
- Type
- Internet provider
- Registered
- Aug 31, 2011
- Domain
- lightpathfiber.com
- Website
- lightpathfiber.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
173.251.28.0/24
Routing history
- Pattern
- Reactivated
- First seen
- Sep 2010
- Current origin since
- Jan 2026 · 10 mo
- Origin networks
- 2
- Last change of origin
- Jan 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 173.251.28.0/24 | AS54004 | /24 | ARIN | RPKI valid |
| 173.251.0.0/17 | AS6128 | /24 | ARIN | Another network |
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