Data as of Nov 7, 2026
204.186.159.0/24
No anonymizer space · no proxy exits in 30 daysCentral Susquehanna Intermediate Unit · space held by PenTeleData Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.186.0.0/16 since May 2005 | AS3737 | Residential | 642 124 always on | PenTeleData 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 |
|---|---|---|---|---|---|---|
| 204.186.0.0/16 | 65,536 | PENTELEDATA | PenTeleData Inc. (PENN-Z) · US | Direct Allocation | Nov 4, 1994 | abuse@ |
| └ 204.186.159.0/24 | 256 | CSIU-01 | Central Susquehanna Immediate Unit (C01948477) · US | Reassigned | Jun 16, 2008 | abuse@ via PENTELEDATA |
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
Registry
Holder
- Organization
- PenTeleData Inc.
- Handle
- PENN-Z
- Range
- 204.
186. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Nov 4, 1994
- Legacy
- yes
Origin network
AS46362
US
- Name
- Central Susquehanna Intermediate Unit
- Type
- Education
- Registered
- Aug 27, 2008
- Domain
- csiu.org
- Industry
- Elementary and Secondary Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2016
- Current origin since
- Aug 2021 · 5.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.186.159.0/24 | AS46362 | /32 | ARIN | RPKI valid |
| 204.186.0.0/16 | AS3737 | /24 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46362 | ARIN | PenTeleData Reassignment Prefix - CSIU16 204.186.159.0/24 AS46362 | MNT-PENN-Z | Aug 7, 2026 |
Whois
Registration for this announcement
- Range
- 204.
186. 159. 0/ 24 - Netname
- CSIU-01
- Registrant
- Central Susquehanna Immediate Unit
- Organization
- Central Susquehanna Immediate Unit (C01948477)
- Type
- Reassigned
- Handle
- NET-204-186-159-0-1
- Parent
- NET-204-186-0-0-1
- Created
- Jun 16, 2008
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 4, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ptd. net - Name
- Abuse Department
- Phone
- +1-800-281-3564
- Handle
- ABUSE9-ARIN