Data as of Nov 6, 2026
24.121.88.0/24
No anonymizer space · no proxy exits in 30 daysOptimum
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 24.121.0.0/17 since Feb 2012 | AS19108 | Residential | 336 51 always on | Optimum | |
| 24.121.0.0/16 since Jul 2011 | AS19108 | Residential | 545 88 always on | Optimum |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, 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 | abuse@ |
| └ 24.121.88.0/24 | 256 | FTTX-PTP-KRMC-1 | Kingman Regional Medical Center (C02730524) · US | Reassigned | Apr 5, 2011 | abuse@ 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
IPv4 market
Holder
- Organization
- Optimum
- Handle
- SUDDE
- Range
- 24.
121. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Sep 20, 2001
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
Summary
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. 88. 0/ 24 - Netname
- FTTX-PTP-KRMC-1
- Registrant
- Kingman Regional Medical Center
- Organization
- Kingman Regional Medical Center (C02730524)
- Type
- Reassigned
- Handle
- NET-24-121-88-0-1
- Parent
- NET-24-121-0-0-1
- Created
- Apr 5, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 20, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse@
suddenlink. net - Name
- Abuse Suddenlink
- Phone
- +1-903-266-4800
- Handle
- ABUSE6997-ARIN