Data as of Nov 10, 2026
198.48.76.0/22
No anonymizer space · no proxy exits in 30 daysUniversity of Washington
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 198.48.64.0/19 | 8,192 | UW-SEA-BLK1 | University of Washington (UWND-Z) · US | Direct Allocation | Mar 26, 1993 | security@ |
| └ 198. | 3,840 | UW-SEA2 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 198.48.64.0/19
- Prefix
- 198.48.64.0/19
- Announced by
- AS73 University of Washington
- Type
- Business
- RPKI
- No RPKI
- Netname
- UW-SEA-BLK1
- Registrant
- University of Washington
- RIR
- ARIN
Origin network
AS73
US
- Name
- University of Washington
- Type
- Education
- Registered
- May 5, 1986
- Domain
- washington.edu
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 198.48.64.0/19
198.48.64.0/19
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jun 2018 · 8.4 yr
- Origin networks
- 1
IRR
Route objects on 198.48.64.0/19
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS73 | RADB | University of Washington | MAINT-AS73 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 198.
48. 64. 0/ 19 - Netname
- UW-SEA-BLK1
- Registrant
- University of Washington
- Organization
- University of Washington (UWND-Z)
- Org address
- 4545 15th Ave NE, Seattle, WA, 98105
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-198-48-64-0-1
- Parent
- NET-198-0-0-0-0
- Created
- Mar 26, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1993
- Status
- assigned
Report abuse
Abuse contact
- security@
uw. edu - Name
- University of Washington Security Operations
- Phone
- +1-206-221-7000
- Handle
- UWSO-ARIN