Data as of Nov 8, 2026
140.226.1.0/24
No anonymizer space · no proxy exits in 30 daysUniversity of Colorado Denver
Network & registry
Announced by
Covering announcement 140.226.0.0/16
- Prefix
- 140.226.0.0/16
- Announced by
- AS16519 University of Colorado Denver
- Type
- Business
- Proxy exits
- 25
- RPKI
- RPKI valid
- Netname
- CUANSCHUTZ
- Registrant
- University of Colorado Denver
- RIR
- ARIN
Origin network
AS16519
US
- Name
- University of Colorado Denver
- Type
- Education
- Registered
- May 5, 2000
- Domain
- ucdenver.edu
- Website
- www.ucdenver.edu
- Industry
- Education Software
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 140.226.0.0/16
140.226.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2013 · 14 yr
- Origin networks
- 2
- Last change of origin
- May 2013
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 140.226.0.0/16 | AS16519 | /16 | ARIN | RPKI valid |
IRR
Route objects on 140.226.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS16519 | RADB | University of Colorado Anschutz Medical Campus | MAINT-AS14041 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 140.
226. 0. 0/ 16 - Netname
- CUANSCHUTZ
- Registrant
- University of Colorado Denver
- Organization
- University of Colorado Denver (UCAD-1-Z)
- Org address
- 1945 N. Wheeling St, Aurora, CO, 80045
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-140-226-0-0-1
- Parent
- NET-140-0-0-0-0
- Created
- Jun 15, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 15, 1990
- Status
- assigned
Report abuse
Abuse contact
- piotr.
artwich@ ucdenver. edu - Name
- Artwich, Piotr
- Phone
- +1-303-724-7878
- Handle
- ARTWI-ARIN