AS104 - colorado.edu

University of Colorado at Boulder

AS104 University of Colorado at Boulder

colorado.edu

United States

1987-04-09

arin

75,520

education

Network Speed

DOWNLOAD
24.05
MBPS
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Hosted Domains

There are 178 domain names hosted across 57 IP addresses on this ASN.

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Whois Details

ASHandle:       AS104
OrgID:          UCAB-2
ASName:         COLORADO-AS
ASNumber:       104
RegDate:        1987-04-09
Updated:        2019-06-25
AbuseHandle:    ABUSE306-ARIN
TechHandle:     CUBOU-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:        2019-06-25
OrgAbuseHandle: ABUSE306-ARIN
OrgAdminHandle: CUBOU-ARIN
OrgTechHandle:  CUBOU-ARIN
Source:         ARIN


POCHandle:      CUBOU-ARIN
IsRole:         Y
LastName:       CUBoulder
FirstName:      
Street:         3645 Marine Street
Street:         Campus Box 455
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80309-0445
RegDate:        2011-11-11
Updated:        2020-06-24
OfficePhone:    +1-303-735-4357
Mailbox:        arinadmin@colorado.edu
Source:         ARIN


POCHandle:      ABUSE306-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         Information Technology Services
Street:         3645 Marine Street
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80309-0455
RegDate:        2003-05-27
Updated:        2019-07-23
OfficePhone:    +1-303-735-4357
Mailbox:        abuse@colorado.edu
Source:         ARIN


POCHandle:      ABUSE306-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         Information Technology Services
Street:         3645 Marine Street
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80309-0455
RegDate:        2003-05-27
Updated:        2019-07-23
OfficePhone:    +1-303-735-4357
Mailbox:        abuse@colorado.edu
Source:         ARIN


POCHandle:      CUBOU-ARIN
IsRole:         Y
LastName:       CUBoulder
FirstName:      
Street:         3645 Marine Street
Street:         Campus Box 455
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80309-0445
RegDate:        2011-11-11
Updated:        2020-06-24
OfficePhone:    +1-303-735-4357
Mailbox:        arinadmin@colorado.edu
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
192.12.245.0/24 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 University of Colorado Boulder 256
198.59.52.0/24 University of Colorado Boulder 256
198.59.54.0/24 University of Colorado Boulder 256
198.59.55.0/24 University of Colorado Boulder 256
198.59.70.0/24 University of Colorado Boulder 256
198.59.7.0/24 University of Colorado Boulder 256
198.59.81.0/24 University of Colorado Boulder 256
198.59.82.0/24 University of Colorado Boulder 256
198.59.83.0/24 University of Colorado Boulder 256
204.228.67.0/24 WestNet, Inc. 256
204.228.80.0/24 University of Colorado Boulder 256
Netblock Description
2620:18f::/32 University of Colorado Boulder

Network Speed

PING
67.57
MS
DOWNLOAD
24.05
Mbps
UPLOAD
25.82
Mbps

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Hosted Domains

There are 178 domain names hosted across 57 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
128.138.129.52 foreverbuffs.org 48
128.138.129.163 colorado.edu 31
128.138.92.5 eyestone.org 15
128.138.135.43 nsidc.org 8
128.138.184.50 christynaranjo.com 6
128.138.29.28 cuconferenceservices.com 5
128.138.96.76 cosmichael.net 4
128.138.136.36 reanalysis.net 4
128.138.67.15 benignviolationtheory.org 4
128.138.73.52 martywaltermath.com 3
128.138.140.2 fops2015.org 2
128.138.201.94 wisecrackings.com 2
128.138.136.14 ifkn.org 2
128.138.184.125 michaeljpaul.com 2
128.138.72.69 bioliteracy.net 2
128.138.129.16 phetsims.org 2
128.138.93.14 openmicrobiome.com 2
128.138.136.220 insidethegreenhouse.org 2
128.138.128.245 coloradanmagazine.org 2
128.138.67.162 safecommunities-safeschools.org 2
128.138.73.59 scalablegamedesign.org 1
128.138.136.89 pacesproject.org 1
128.138.128.86 cuherd.com 1
128.138.67.171 behavioral-science.com 1
128.138.131.2 inspiresat.com 1
128.138.92.20 airwatergas.org 1
128.138.128.243 cualum.org 1
128.138.112.161 unixops.com 1
128.138.238.171 dsstmodel.org 1
198.11.30.136 katelusedor.com 1
128.138.136.170 icacgp-igac2018.org 1
198.11.21.11 818108.com 1
128.138.182.21 gsbcolorado.com 1
128.138.135.152 glims.net 1
128.138.129.98 colorado.edu 1
192.12.241.69 chevillotte.fr 1
128.138.36.26 hennymagna.com 1
128.138.136.96 igacproject.org 1
128.138.73.51 peterrrock2.com 1
128.138.223.2 andrewreineberg.com 1
128.138.183.69 eithrive.org 1
128.138.68.24 paulconstantine.net 1
128.138.183.217 immobilite.com 1
128.138.184.29 riverware.org 1
128.138.73.83 explicet.org 1
128.138.222.40 hamlington.me 1
198.11.21.22 rackyvoip.com 1
128.138.64.73 brandonroemer.com 1
128.138.73.24 argovis.com 1
128.138.184.84 bouldersolarreu.com 1

Peers

There are 2 peers for this ASN.

  • University Corporation for Atmospheric Research

    AS14041
  • CenturyLink Communications, LLC

    AS209

Upstreams

There are 2 upstreams for this ASN.

  • University Corporation for Atmospheric Research

    AS14041
  • CenturyLink Communications, LLC

    AS209

Downstreams

There are no downstreams for this ASN.

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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.

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