AS104
University of Colorado at Boulder · colorado.edu
United States
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| Field | Value |
|---|---|
| Country |
United States
|
| Website | colorado.edu |
| Hosted domains | 78 |
| IPv4 addresses | 91,136 |
| IPv6 addresses | 79,229,371,440,083,952,222,718,656,512 |
| ASN type | Education |
| Registry | arin |
| Allocated | 39 years ago on Apr 09, 1987 |
| Updated | 6 years ago on Jun 25, 2019 |
IP Ranges
| Netblock | Company | Num of IPs |
|---|---|---|
| 128.138.0.0/16 | University of Colorado | 65,536 |
| 129.19.192.0/18 | University of Colorado Boulder | 16,384 |
| 198.11.16.0/20 | University of Colorado Boulder | 4,096 |
| 146.5.20.0/22 | National Solar Observatory | 1,024 |
| 192.12.238.0/24 | 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 |
| 192.12.244.0/24 | University of Colorado | 256 |
| 192.12.245.0/24 | University of Colorado | 256 |
| 198.59.7.0/24 | University of Colorado Boulder | 256 |
| 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 |
| 198.59.81.0/24 | 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 |
| 204.228.80.0/24 | University of Colorado Boulder | 256 |
| Netblock | Company |
|---|---|
| 2620:18f::/32 | University of Colorado Boulder |
| 2001:468:501::/48 | University Corporation for Atmospheric Research |
WHOIS Details
ASHandle: AS104
OrgID: AS104
ASName: AS104
ASNumber: AS104
RegDate: 0000-00-00
Updated: 0000-00-00
TechHandle: AA00-AAAA
Source: AAAA
Hosted Domains
There are 78 domain names hosted across 36 IP addresses on this ASN.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 128.138.68.45 | ██████████ | 14 |
| 128.138.135.43 | █████████ | 11 |
| 128.138.136.14 | ██████████ | 9 |
| 128.138.136.36 | ██████████ | 4 |
| 128.138.29.28 | ██████████ | 3 |
| 128.138.73.57 | █████████ | 2 |
| 128.138.67.162 | ██████████ | 2 |
| 128.138.70.66 | ██████████ | 2 |
| 128.138.136.220 | ██████████ | 2 |
| 128.138.136.96 | ██████████ | 2 |
Peers
There are 2 peers for this ASN.
Upstreams
There are 2 upstreams for this ASN.
Downstreams
There are no downstreams for this ASN.
Pingable IPs
73 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 128.138.225.117 |
1.81ms from Denver,
US
|
|
| 128.138.93.152 |
1.68ms from Denver,
US
|
|
| 128.138.96.3 |
2.30ms from Denver,
US
|
|
| 128.138.75.13 |
2.40ms from Denver,
US
|
|
| 128.138.213.15 |
2.24ms from Denver,
US
|
|
| 128.138.237.16 |
2.14ms from Denver,
US
|
|
| 128.138.143.145 |
2.18ms from Denver,
US
|
|
| 128.138.92.19 |
1.73ms from Denver,
US
|
|
| 128.138.139.9 |
1.88ms from Denver,
US
|
|
| 128.138.240.1 |
1.78ms from Denver,
US
|
|
| 128.138.210.34 |
1.96ms from Denver,
US
|
|
| 128.138.118.7 |
2.17ms from Denver,
US
|
|
| 128.138.130.30 |
2.31ms from Denver,
US
|
|
| 128.138.244.13 |
2.31ms from Denver,
US
|
|
| 128.138.219.134 |
2.63ms from Denver,
US
|
|
| 128.138.105.157 |
2.35ms from Denver,
US
|
|
| 128.138.88.16 |
1.97ms from Denver,
US
|
|
| 146.5.23.210 |
1.26ms from Denver,
US
|
|
| 198.59.55.10 |
0.73ms from Denver,
US
|
|
| 128.138.97.174 |
1.75ms from Denver,
US
|
|
| 128.138.184.28 |
1.61ms from Denver,
US
|
|
| 128.138.152.46 |
1.96ms from Denver,
US
|
|
| 128.138.71.4 |
2.11ms from Denver,
US
|
|
| 128.138.73.24 |
1.83ms from Denver,
US
|
|
| 128.138.133.19 |
2.26ms from Denver,
US
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 108.173.207.56 |
1.33ms from Calgary,
CA
|
|
| 156.56.17.40 |
5.16ms from Chicago,
US
|
|
| 35.224.185.120 |
0.12ms from Council Bluffs,
US
|
|
| 186.250.171.152 |
11.74ms from Curitiba,
BR
|
|
| 97.118.66.8 |
2.65ms from Denver,
US
|
|
| 113.170.170.56 |
2.49ms from Ho Chi Minh City,
VN
|
|
| 20.247.32.200 |
0.98ms from Hong Kong,
HK
|
|
| 184.94.203.8 |
2.25ms from Houston,
US
|
|
| 76.171.19.168 |
5.72ms from Los Angeles,
US
|
|
| 82.127.177.8 |
2.35ms from Paris,
FR
|
|
| 78.80.173.88 |
0.91ms from Prague,
CZ
|
|
| 123.169.105.72 |
6.46ms from Qingdao,
CN
|
|
| 44.208.160.152 |
0.16ms from Reston,
US
|
|
| 66.119.215.24 |
5.86ms from Seattle,
US
|
|
| 175.205.204.200 |
3.20ms from Seoul,
KR
|
|
| 58.227.19.40 |
1.90ms from Seoul,
KR
|
|
| 99.112.100.88 |
18.46ms from Chicago,
US
|
|
| 168.167.169.40 |
5.35ms from Johannesburg,
ZA
|
|
| 98.96.162.8 |
1.09ms from London,
GB
|
|
| 5.83.95.216 |
8.52ms from Madrid,
ES
|
|
| 16.50.147.216 |
0.60ms from Melbourne,
AU
|
|
| 104.77.208.120 |
0.12ms from Melbourne,
AU
|
|
| 93.198.167.136 |
7.80ms from Nuernberg,
DE
|
|
| 75.214.133.152 |
10.86ms from Philadelphia,
US
|
|
| 45.40.132.152 |
0.95ms from Phoenix,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.
IPinfo ProbeNet
in Denver, US
Related Networks
What is an ASN?
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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