Data as of Nov 7, 2026
131.230.55.0/24
No anonymizer space · no proxy exits in 30 daysSouthern Illinois University Carbondale
Network & registry
Announced by
Covering announcement 131.230.0.0/16
- Prefix
- 131.230.0.0/16
- Announced by
- AS15119 Southern Illinois University Carbondale
- Type
- Business
- Proxy exits
- 214
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- SIU-NET
- Registrant
- Southern Illinois University Carbondale
- RIR
- ARIN
Origin network
AS15119
US
- Name
- Southern Illinois University Carbondale
- Type
- Education
- Registered
- Mar 22, 2000
- Domain
- siu.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 131.230.0.0/16
131.230.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 131.230.0.0/16 | AS15119 | /16 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 131.
230. 0. 0/ 16 - Netname
- SIU-NET
- Registrant
- Southern Illinois University Carbondale
- Organization
- Southern Illinois University Carbondale (SIU)
- Org address
- IT-Network Engineering, Carbondale, IL, 62901
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-131-230-0-0-1
- Parent
- NET-131-0-0-0-0
- Created
- Jan 30, 1989
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 30, 1989
- Status
- assigned
Report abuse
Abuse contact
- tech@
siu. edu - Name
- Castelli, Anton
- Phone
- +1-618-453-6424
- Handle
- CASTE80-ARIN