AS104 - colorado.edu
University of Colorado at Boulder
AS104 University of Colorado at Boulder
1987-04-09
arin
75,520
business
Whois Details
ASHandle: AS104 OrgID: UCAB-2 ASName: COLORADO-AS ASNumber: 104 RegDate: 1987-04-09 Updated: 2014-01-31 AbuseHandle: ABUSE306-ARIN TechHandle: DCMW-ARIN Source: ARIN OrgID: UCAB-2 OrgName: University of Colorado at Boulder CanAllocate: Street: Campus Box 455 City: Boulder State/Prov: CO Country: US PostalCode: 80309-0455 RegDate: 1987-04-09 Updated: 2014-01-31 OrgAdminHandle: CUBOU-ARIN OrgTechHandle: DCMW-ARIN OrgAbuseHandle: ABUSE306-ARIN Source: ARIN
IP Address Ranges
Netblock | Description | Num IPs |
---|---|---|
128.138.0.0/16 | University of Colorado | 65,536 |
146.5.20.0/22 | National Solar Observatory | 1,024 |
192.12.238.0/24 | University of Colorado | 256 |
192.12.239.0/24 | University of Colorado | 256 |
192.12.240.0/24 | University of Colorado | 256 |
192.12.241.0/24 | University of Colorado | 256 |
192.12.242.0/24 | University of Colorado | 256 |
192.12.243.0/24 | University of Colorado | 256 |
192.12.244.0/24 | University of Colorado | 256 |
192.12.245.0/24 | University of Colorado | 256 |
192.12.246.0/24 | University of Colorado | 256 |
198.11.16.0/20 | University of Colorado Boulder | 4,096 |
198.59.51.0/24 | Computing and Network Services | 256 |
198.59.52.0/24 | University of Colorado | 256 |
198.59.54.0/24 | University of Colorado | 256 |
198.59.55.0/24 | Univ of Colorado | 256 |
198.59.7.0/24 | University of Colorado | 256 |
198.59.81.0/24 | WestNet, Inc. | 256 |
198.59.82.0/24 | University of Colorado, Telecomm Lab | 256 |
198.59.83.0/24 | Univ of Colorado | 256 |
204.228.67.0/24 | WestNet, Inc. | 256 |
204.228.80.0/24 | WestNet, Inc. | 256 |
There are no known IPv6 addresses belonging to this network
Network Speed
Hosted Domains
There are 84 domain names hosted across 46 IP addresses on this ASN. Checkout our API to access full domain hosting information.
IP Address | Domain | Domains on this IP |
---|---|---|
128.138.101.141 | cubooks.net | 27 |
128.138.29.28 | boulderinterns.com | 5 |
128.138.135.43 | nsidc.org | 3 |
128.138.183.182 | lowry-lab.net | 3 |
128.138.140.2 | fops2015.com | 2 |
128.138.93.14 | openmicrobiome.com | 2 |
128.138.136.14 | ifkn.org | 2 |
128.138.136.220 | insidethegreenhouse.org | 2 |
128.138.93.53 | coreassociations.org | 1 |
128.138.184.29 | riverware.org | 1 |
128.138.36.26 | hennymagna.com | 1 |
128.138.183.234 | unixops.com | 1 |
128.138.113.96 | dankow.net | 1 |
128.138.128.86 | cuherd.com | 1 |
128.138.136.170 | icacgp-igac2018.org | 1 |
128.138.158.37 | gnss-h2o.org | 1 |
128.138.128.243 | cualum.org | 1 |
128.138.182.21 | gsbcolorado.com | 1 |
128.138.232.94 | social-dining.org | 1 |
128.138.120.129 | bowmanresearchgroup.com | 1 |
128.138.228.47 | andesarena.com | 1 |
128.138.184.45 | learningassistantalliance.org | 1 |
128.138.136.58 | cryosphericsciences.org | 1 |
128.138.201.94 | wisecrackings.com | 1 |
128.138.135.152 | glims.net | 1 |
128.138.87.27 | pitlakesdatabase.org | 1 |
128.138.131.243 | rockymountainpawz.com | 1 |
128.138.73.83 | explicet.org | 1 |
128.138.183.217 | immobilite.com | 1 |
128.138.136.96 | igacproject.org | 1 |
128.138.136.89 | pacesproject.org | 1 |
128.138.120.26 | cuchbe.org | 1 |
198.11.21.11 | 818108.com | 1 |
128.138.183.216 | ifsfan.com | 1 |
128.138.222.90 | cumcen.org | 1 |
128.138.184.6 | airwatergas.org | 1 |
128.138.184.84 | nso.edu | 1 |
128.138.184.125 | cmciinternships.com | 1 |
128.138.238.171 | dsstmodel.org | 1 |
128.138.136.106 | thwaitesglacier.org | 1 |
128.138.183.69 | eithrive.org | 1 |
128.138.136.36 | reanalyses.org | 1 |
128.138.128.245 | coloradanmagazine.org | 1 |
128.138.184.63 | earthsystemmodeling.org | 1 |
128.138.73.59 | scalablegamedesign.org | 1 |
128.138.129.98 | colorado.edu | 1 |
Peers
There are 2 peers for this ASN.
Upstreams
There are 2 upstreams for this ASN.
Downstreams
There are no downstreams for this ASN.
Details
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.
Find out more about AS104 at robtex.