1. All IP Ranges
  2. 158.0.0.0/8
  3. 158.142.0.0/16
  4. AS36691  | 158.142.0.0/16

158.142.0.0/16

AS36691  ·  Colorado State University

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Summary

Country United States
Domain colostate.edu
ASN AS36691
Registry ARIN
ID CSUP-2

WHOIS Details

NetHandle:      NET-158-142-0-0-1
OrgID:          CSU-2-Z
Parent:         NET-158-0-0-0-0
NetName:        CSUP-2
NetRange:       158.142.0.0 - 158.142.255.255
NetType:        allocation
RegDate:        1992-03-10
Updated:        2024-03-11
Source:         ARIN


OrgID:          CSU-2-Z
OrgName:        Colorado State University
CanAllocate:    
Street:         Academic Computing and Networking Services
Street:         Colorado State University
Street:         1018 Campus Delivery
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80523
RegDate:        2023-01-16
Updated:        2025-09-29
OrgAdminHandle: SSJ11-ARIN
OrgTechHandle:  DNSAD191-ARIN
OrgTechHandle:  MPW-ARIN
OrgAbuseHandle: DNSAD191-ARIN
OrgRoutingHandle:   ADLER49-ARIN
OrgRoutingHandle:   HERNA1265-ARIN
OrgDNSHandle:   ADLER49-ARIN
OrgDNSHandle:   DNSAD191-ARIN
OrgDNSHandle:   HERNA1265-ARIN
OrgDNSHandle:   MPW-ARIN
Source:         ARIN


POCHandle:      MPW-ARIN
IsRole:         N
LastName:       Willard
FirstName:      Michael
Street:         1018 Campus Delivery
Street:         Colorado Sate University
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80523
RegDate:        2013-04-05
Updated:        2025-07-15
OfficePhone:    +1-970-491-4651
Mailbox:        mike.willard@colostate.edu
Source:         ARIN


POCHandle:      SSJ11-ARIN
IsRole:         N
LastName:       Juarez
FirstName:      Steve
Street:         601 S Howes St
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80521
RegDate:        2024-02-07
Updated:        2024-02-07
OfficePhone:    +1-970-491-4150
MobilePhone:    +1-970-443-3520
Mailbox:        steve.juarez@colostate.edu
Source:         ARIN


POCHandle:      DNSAD191-ARIN
IsRole:         Y
LastName:       DNS Administrator
FirstName:      
Street:         Academic Computing and Networking Services
Street:         Colorado State University
City:           Fort Collins
State/Prov:     CO
Country:        US
PostalCode:     80523
RegDate:        2007-03-07
Updated:        2025-06-12
OfficePhone:    +1-970-491-5600
FaxPhone:       +1-970-491-1958
Mailbox:        dns.admin@colostate.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 158.0.0.0/8

Range ASN Company Num of IPs
158.252.0.0/15 AS16509 Amazon Data Services UAE 131,072
158.110.0.0/16 AS137 Universita' degli Studi di Udine 65,536
158.161.0.0/16 AS133875 Brunei Shell Petroleum Company Sendirian Berhad 65,536
158.191.0.0/16 AS9159 CNCA 65,536
158.49.0.0/16 AS766 Universidad de Extremadura 65,536
158.44.0.0/16 AS9318 Trigem Computer, Inc. 65,536
158.104.0.0/16 AS29984 Willamette University 65,536
158.42.0.0/16 AS766 Universitat Politecnica de Valencia 65,536
158.53.0.0/16 AS8075 Microsoft Limited 65,536
158.190.0.0/16 AS9159 Caisse Nationale de Credit Agricol 65,536
158.12.0.0/16 AS668 Headquarters, USAISC 65,536
158.43.0.0/16 AS702 Verizon UK Limited 65,536
158.99.0.0/16 AS766 Spanish National R&D Network 65,536
158.24.0.0/16 AS8075 Microsoft Limited 65,536
158.235.0.0/16 AS749 DoD Network Information Center 65,536
158.167.0.0/16 AS42848 European Commission, SNET Luxembourg 65,536
158.18.0.0/16 AS5180 DoD Network Information Center 65,536
158.200.0.0/16 AS2522 Japan Network Information Center 65,536
158.153.0.0/16 AS749 Navy Network Information Center (NNIC) 65,536
158.246.0.0/16 AS749 DoD Network Information Center 65,536
158.166.0.0/16 AS42848 European Commission, , SNET in Brussels 65,536
158.157.0.0/16 AS749 DoD Network Information Center 65,536
158.132.0.0/16 AS4616 The Hong Kong Polytechnic University 65,536
158.168.0.0/16 AS42848 European Commission, SNET Brussels 65,536
158.165.0.0/16 AS6377 Eugene School District 4J 65,536
158.61.0.0/16 AS46196 County of Riverside 65,536
158.225.0.0/16 AS702 Dassault Systemes Deutschland GmbH 65,536
158.23.0.0/16 AS8075 Microsoft Singapore Pte. Ltd. 65,536
158.158.0.0/16 AS8075 Microsoft Singapore Pte. Ltd. 65,536
158.192.0.0/16 AS9159 CNCA 65,536
158.57.0.0/16 AS1932 Consolidated Edison Co. of New York, Inc. 65,536
158.145.0.0/16 AS3724 State of Alaska 65,536
158.102.0.0/16 AS2594 Consorzio per il Sistema Informativo 65,536
158.100.0.0/16 AS16509 Amazon.com, Inc. 65,536
158.112.0.0/16 AS49278 IKT-KAPASITETER 65,536
158.138.0.0/16 AS16509 Amazon.com, Inc. 65,536
158.63.0.0/16 AS22238 DoD Network Information Center 65,536
158.141.0.0/16 AS16509 Amazon Technologies Inc. 65,536
158.111.0.0/16 AS13611 U.S. Center For Disease Control and Prevention 65,536
158.151.0.0/16 AS16509 Amazon.com, Inc. 65,536
158.130.0.0/16 AS55 University of Pennsylvania 65,536
158.221.0.0/16 AS16509 Amazon Technologies Inc. 65,536
158.170.0.0/16 AS27897 SEGIC USACH LTDA 65,536
158.108.0.0/16 AS9411 Kasetsart University, Thailand 65,536
158.8.0.0/16 AS5180 DoD Network Information Center 65,536
158.251.0.0/16 AS16742 Universidad Catolica de Valparaiso 65,536
158.182.0.0/16 AS4605 Hong Kong Baptist University 65,536
158.7.0.0/16 AS367 Headquarters, USAISC 65,536
158.237.0.0/16 AS637 MARINE CORPS CYBERSPACE OPERATIONS GROUP 65,536

Hosted domains

There are 7 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
158.142.11.184 csupueblo.edu 7

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

38 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
158.142.247.33 AS36691 Colorado State University 2.78ms from Denver, US
158.142.1.130 AS36691 Colorado State University 2.72ms from Denver, US
158.142.246.59 AS36691 Colorado State University 2.94ms from Denver, US
158.142.11.133 AS36691 Colorado State University 2.81ms from Denver, US
158.142.6.18 AS36691 Colorado State University 2.78ms 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
31.149.225.96 AS1136 KPN B.V. 1.17ms from Amsterdam, NL
174.66.255.16 AS22773 Cox Communications Inc. 6.75ms from Dallas, US
24.9.247.16 AS7922 Comcast Cable Communications, LLC 3.17ms from Denver, US
24.70.99.208 AS6327 Shaw Communications Inc. 9.58ms from Kelowna, CA
188.35.23.0 AS42148 Beirel Telecom LLC 1.24ms from Moscow, RU
191.53.135.32 AS28202 MASTER S/A 10.59ms from Osasco, BR
186.210.201.64 AS53006 ALGAR TELECOM S/A 9.11ms from Osasco, BR
112.187.50.32 AS4766 Korea Telecom 5.81ms from Seoul, KR
183.120.83.160 AS4766 Korea Telecom 6.95ms from Seoul, KR
210.172.112.32 AS2516 KDDI CORPORATION 3.27ms from Tokyo, JP
106.45.204.16 AS4134 CHINANET-BACKBONE 3.76ms from Zhongwei, CN
73.237.107.64 AS7922 Comcast Cable Communications, LLC 5.68ms from Atlanta, US
61.48.157.160 AS4808 China Unicom Beijing Province Network 3.97ms from Beijing, CN
188.101.158.64 AS3209 Vodafone GmbH 9.22ms from Berlin, DE
128.24.116.48 AS8075 Microsoft Corporation 0.72ms from Boydton, US
75.76.251.64 AS11776 Breezeline 19.09ms from Chicago, US
78.34.98.96 AS8422 NetCologne Gesellschaft fur Telekommunikation mbH 2.00ms from Duesseldorf, DE
185.5.170.96 AS12360 KEVAG Telekom GmbH 0.51ms from Frankfurt am Main, DE
3.77.227.224 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
108.244.219.80 AS7018 AT&T Enterprises, LLC 3.25ms from Houston, US
176.194.86.240 AS12714 PJSC MegaFon 12.39ms from Krasnodar, RU
179.58.169.240 AS28024 Nuevatel PCS de Bolivia S.A. 12.89ms from La Paz, BO
190.238.68.240 AS6147 Telefonica del Peru S.A.A. 5.92ms from Lima, PE
80.41.164.16 AS13285 TalkTalk Communications Limited 2.58ms from Manchester, GB
203.59.174.240 AS7545 TPG Telecom Limited 2.15ms from Melbourne, AU

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -m7 158.142.42.180
traceroute to 158.142.42.180 (158.142.42.180): 7 hops max, 52 byte packets
1 [AS43289] 45.153.124.1 7.307 ms
3 *
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Chisinau, MD
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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