Data as of Nov 7, 2026
216.186.72.0/21
No anonymizer space · no proxy exits in 30 daysWashington State K-20 Telecommunications 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 |
|---|---|---|---|---|---|---|
| 216.186.0.0/17 | 32,768 | WA-K20-BLK3 | Washington State K-20 Telecommunications Network (WSKT) · US | Direct Allocation | Jan 28, 1999 | uw-noc@ |
| └ 216.186.72.0/23 | 512 | WSKT-255 | unknown | — | — | — |
| └ 216.186.74.0/23 | 512 | WSKT-260 | unknown | — | — | — |
| └ 216.186.76.0/22 | 1,024 | WSKT-264 | unknown | — | — | — |
Network & registry
Origin network
AS10430
US
- Name
- Washington State K-20 Telecommunications Network
- Type
- Education
- Registered
- Aug 1, 1997
- Domain
- wa-k20.net
- Website
- www.wa-k20.net/
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2026
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 216.186.0.0/17 | AS10430 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 216.
186. 0. 0/ 17 - Netname
- WA-K20-BLK3
- Registrant
- Washington State K-20 Telecommunications Network
- Organization
- Washington State K-20 Telecommunications Network (WSKT)
- Org address
- c/o University of Washington IT, Seattle, WA, 98105-4527
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-216-186-0-0-1
- Parent
- NET-216-0-0-0-0
- Created
- Jan 28, 1999
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 28, 1999
- Status
- assigned
Report abuse
Abuse contact
- uw-noc@
uw. edu - Name
- University of Washington Networks and Distributed
- Phone
- +1-206-221-6000
- Handle
- UW-NOC-ARIN