Data as of Nov 9, 2026
204.108.129.0/24
No anonymizer space · no proxy exits in 30 daysChesconet
Announcement
this exact prefix
RPKI valid
Announced by
Type
Internet provider
Risk
0 / 100 · Low
Recent change
New origin Jun 2026
from AS20413 Chesconet, after 2.8 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 204.108.128.0/19 since May 2005 | AS20413 | Internet provider | Chesconet |
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 |
|---|---|---|---|---|---|---|
| 204.108.128.0/19 | 8,192 | CHESCOMAN-1 | Chesconet (CHS1) · US | Direct Allocation | Oct 6, 1994 | — |
| └ 204.108.129.0/24 | 256 | CHESTER-COUNTY-INTERMEDIATE-UNIT | unknown | Reassigned | Jun 4, 2021 | — |
Network & registry
Registry
Holder
- Organization
- Chesconet
- Handle
- CHS1
- Range
- 204.
108. 128. 0/ 19 - Registration type
- Direct Allocation
- Record created
- Oct 6, 1994
- Legacy
- yes
Origin network
AS20413
US
- Name
- Chesconet
- Type
- Internet provider
- Registered
- May 28, 2019
- Domain
- chesco.net
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2023
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.108.129.0/24 | AS20413 | /24 | ARIN | RPKI valid |
| 204.108.128.0/19 | AS20413 | /19 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS20413 | ARIN | Chesconet IPv4 block re-assigned to Chester County Intermediate Unit | MNT-CHS1 | Aug 31, 2026 |
Whois
Registration for this announcement
- Range
- 204.
108. 129. 0/ 24 - Netname
- CHESTER-COUNTY-INTERMEDIATE-UNIT
- Registrant
- Chesconet
- Organization
- Chesconet (CHS1)
- Org address
- Chesconet, Downingtown, PA, 19335
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-108-129-0-1
- Parent
- NET-204-108-128-0-1
- Created
- Jun 4, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 6, 1994
- Status
- assigned
Report abuse
Abuse contact
- LKonig@
chesco. net - Name
- Konig, Larry
- Phone
- +1-484-237-5003
- Handle
- LKO36-ARIN