AS104 - colorado.edu

University of Colorado at Boulder

AS104 University of Colorado at Boulder

Domain

colorado.edu

Country

United States

Allocated

1987-04-09

Registry

arin

IP Addresses

75,520

Type

business

Network Speed

DOWNLOAD
24.05
MBPS
View Details

Hosted Domains

There are 84 domain names hosted across 46 IP addresses on this ASN.

Show Domains

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
Show all 22 IP ranges

There are no known IPv6 addresses belonging to this network

Network Speed

Ping

67.57
ms

Download

24.05
Mbps

Upload

25.82
Mbps

See how your own network speed compares at speedsmart.net.

Test Your 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
Checkout the API

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.

Related Networks

See the ASN report for United States for more related networks.

Get Started

Utilize our APIs to get information on any IP address including geolocation, ASN and hostname. It is forever FREE for up to 1000 requests per day.

No Credit card required

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.

Try our JSON API from the command line

Get started with curl ipinfo.io or check out the documentation to read more.

Documentation
Free for small projects. Pay as you grow.

Our API is free for up to 1,000 requests per day. Our plans suits the company of every size.

Plans & Pricing
A million uses. Easy to implement.

From filtering out bot traffic, to performing bulk IP geolocation, we’ve got it all covered.

Guides