Data as of Nov 4, 2026
72.50.236.0/23
No anonymizer space · no proxy exits in 30 daysCircle Computer Resources, Inc. · reallocated from ARK Data Centers LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 72.50.224.0/19 since Mar 2009 | AS14230 | Hosting | ARK Data Centers LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 72.50.236.0/24 since May 2012 | AS30536 | Internet provider | ARK Data Centers LLC via Circle Computer Resources, Inc. | |
| 72.50.237.0/24 since May 2012 | AS30536 | Internet provider | ARK Data Centers LLC via Circle Computer Resources, Inc. |
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 |
|---|---|---|---|---|---|---|
| 72.50.224.0/19 | 8,192 | INVOLTA-72-50-224-0--20 | ARK Data Centers LLC (INVOL-1) · US | Direct Allocation | Mar 24, 2008 | [email protected] |
| └ 72.50.234.0 - 72.50.237.255 | 1,024 | INVOLTA | Circle Computer Resources, Inc. (CCR-32) · US | Reallocated | Mar 4, 2009 | [email protected] |
Network & registry
Registry
Holder
- Organization
- ARK Data Centers LLC
- Handle
- INVOL-1
- Range
- 72.50.224.0/19
- Registration type
- Direct Allocation
- Record created
- Mar 24, 2008
- Reallocated to
- Circle Computer Resources, Inc. (CCR-32)
- Reallocated range
- 72.50.234.0 - 72.50.237.255
- Reallocated
- Mar 4, 2009
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2011
- Current origin since
- Aug 2011 · 15 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 72.50.236.0/23 | AS30536 | /24 | ARIN | RPKI valid |
| 72.50.224.0/19 | AS14230 | /24 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 72.50.234.0 - 72.50.237.255
- Netname
- INVOLTA
- Registrant
- Circle Computer Resources, Inc.
- Organization
- Circle Computer Resources, Inc. (CCR-32)
- Org address
- 845 Capital Drive SW, Cedar Rapids, IA, 52404
- Org country
- US
- Type
- Reallocated
- Handle
- NET-72-50-234-0-1
- Parent
- NET-72-50-224-0-1
- Created
- Mar 4, 2009
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 24, 2008
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Network Operations Center
- Phone
- +1-319-362-2384
- Handle
- NOC32105-ARIN