Data as of Nov 8, 2026
204.25.200.0/22
No anonymizer space · no proxy exits in 30 daysWashtenaw ISD · space held by Michigan Statewide Educational Network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.25.200.0/21 since Jun 2023 | AS46241 | Business | 1 | Michigan Statewide Educational Network |
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 |
|---|---|---|---|---|---|---|
| 204.25.192.0/18 | 16,384 | MISEN-2 | Michigan Statewide Educational Network (MSEN-1) · US | Direct Allocation | Dec 20, 2021 | — |
| └ 204.25.200.0/21 | 2,048 | WASHTENAW-ISD | Washtenaw ISD (WASHTE-3) · US | Reassigned | May 1, 2023 | mcolligan@ |
Network & registry
Registry
Holder
- Organization
- Michigan Statewide Educational Network
- Handle
- MSEN-1
- Range
- 204.
25. 192. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Dec 20, 2021
Origin network
AS46241
US
- Name
- Washtenaw ISD
- Type
- Education
- Registered
- Jun 20, 2023
- Domain
- washtenawisd.org
- Industry
- Travel and Accommodation
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Jun 2023
- Current origin since
- Jun 2023 · 3.4 yr
- Origin networks
- 2
- Last change of origin
- Jun 2023
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.25.200.0/22 | AS46241 | /22 | ARIN | RPKI valid |
| 204.25.200.0/21 | AS46241 | /21 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46241 | ARIN | Washtenaw ISD | MNT-MSEN-1 | Jul 13, 2023 |
Whois
Registration for this announcement
- Range
- 204.
25. 200. 0/ 21 - Netname
- WASHTENAW-ISD
- Registrant
- Washtenaw ISD
- Organization
- Washtenaw ISD (WASHTE-3)
- Org address
- 1819 S. Wagner Rd., Ann Arbor, MI, 48106-1406
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-25-200-0-1
- Parent
- NET-204-25-192-0-1
- Created
- May 1, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 20, 2021
- Status
- assigned
Report abuse
Abuse contact
- mcolligan@
washtenawisd. org - Name
- Washtenaw Intermediate School District IT
- Phone
- +1-734-994-8100
- Handle
- WISDI-ARIN