Data as of Nov 4, 2026
24.121.112.0/22
No anonymizer space · no proxy exits in 30 daysOptimum
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 24.121.0.0/16 since Jul 2011 | AS19108 | Residential | 534 86 always on | Optimum |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 24.121.112.0/23 since Jul 2017 | AS395866 | Residential | Optimum |
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 |
|---|---|---|---|---|---|---|
| 24.121.0.0/16 | 65,536 | SUDDE-NETBLK-24-121-0-0 | Optimum (SUDDE) · US | Direct Allocation | Sep 20, 2001 | [email protected] |
| └ 24.121.112.0/22 | 1,024 | CABLE-MO-STJOSEPH-6 | Cablevision of ST. Joseph (C01112217) · US | Reassigned | Jun 9, 2005 | [email protected] via SUDDE-NETBLK-24-121-0-0 |
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
Announced by
Covering announcement 24.121.0.0/17
- Prefix
- 24.121.0.0/17
- Announced by
- AS19108 Optimum
- Type
- Residential
- Proxy exits
- 327
- Always-on exits
- 49
- RPKI
- No RPKI
- Netname
- SUDDE-NETBLK-24-121-0-0
- Registrant
- Optimum
- RIR
- ARIN
Origin network
AS19108
US
- Name
- Optimum
- Type
- Internet provider
- Registered
- Nov 20, 2000
- Domain
- optimum.com
- Website
- www.suddenlink.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
24.121.0.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Feb 2012 · 15 yr
- Origin networks
- 2
- Last change of origin
- Feb 2012
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 24.121.0.0/16
- Netname
- SUDDE-NETBLK-24-121-0-0
- Registrant
- Optimum
- Organization
- Optimum (SUDDE)
- Org address
- 311 NNW Loop 323, Tyler, TX, 75701
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-24-121-0-0-1
- Parent
- NET-24-0-0-0-0
- Created
- Sep 20, 2001
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 20, 2001
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse Suddenlink
- Phone
- +1-903-266-4800
- Handle
- ABUSE6997-ARIN