204.228.68.0/24

AS62671 · ECS-Infrastructure

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Summary

Country	United States
Domain	cu.edu
ASN	AS62671
Parent Range	204.228.68.0/22
Registry	ARIN
ID	UCUISNET-U4

WHOIS Details

NetHandle:      NET-204-228-68-0-1
OrgID:          UCUIS-Z
Parent:         NET-204-0-0-0-0
NetName:        UCUISNET-U4
NetRange:       204.228.68.0 - 204.228.71.255
NetType:        allocation
RegDate:        1995-01-12
Updated:        2021-12-14
Source:         ARIN


OrgID:          UCUIS-Z
OrgName:        ECS-Infrastructure
CanAllocate:    
Street:         1800 Grant St.
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80203
RegDate:        2018-08-20
Updated:        2018-08-20
OrgAdminHandle: ECSIN-ARIN
OrgTechHandle:  ECSIN-ARIN
OrgAbuseHandle: ECSIN-ARIN
OrgNOCHandle:   ECSIN-ARIN
Source:         ARIN


POCHandle:      ECSIN-ARIN
IsRole:         Y
LastName:       ECS-Infra 
FirstName:      
Street:         1800 Grant St.
City:           Denver
State/Prov:     CO
Country:        US
PostalCode:     80203
RegDate:        2018-07-12
Updated:        2025-08-14
OfficePhone:    +1-720-443-3327
Mailbox:        adam.newby@cu.edu
Mailbox:        ecs-infrastructure@cu.edu
Mailbox:        lonnie.maynard@cu.edu
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 204.228.68.0/24

Range	ASN	Company	Num of IPs
204.228.68.0/22	AS62671	ECS-Infrastructure	1,024

Nearby Ranges

BGP prefixes that overlap with 204.228.0.0/16

Range	ASN	Company	Num of IPs
204.228.128.0/19	AS6315	XMission, L.C.	8,192
204.228.68.0/22	AS62671	ECS-Infrastructure	1,024
204.228.80.0/24	AS104	University of Colorado Boulder	256
204.228.248.0/24	AS14230	Regular Guy Enterprises	256
204.228.64.0/24	AS32920	ITHAKA Harbors, Inc.	256
204.228.81.0/24	AS33652	County of Grand, East Grand School District #2	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
204.228.68.9	AS62671 ECS-Infrastructure	`0.60ms` 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
129.190.113.72	AS89 Navy Network Information Center (NNIC)	`2.65ms` from Ashburn, US
103.243.90.168	AS133108 Wanganui District Council	`8.99ms` from Auckland, NZ
191.111.230.72	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`9.02ms` from Bogota, CO
194.180.59.216	AS49651 ENERCON GmbH	`0.70ms` from Frankfurt am Main, DE
64.229.164.152	AS577 Bell Canada	`10.60ms` from Montreal, CA
180.116.197.216	AS4134 CHINANET-BACKBONE	`4.62ms` from Nanjing, CN
217.254.37.216	AS3320 Deutsche Telekom AG	`4.09ms` from Nuernberg, DE
126.219.234.200	AS17676 SoftBank Corp.	`3.77ms` from Osaka, JP
124.103.26.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.59ms` from Osaka, JP
91.171.189.8	AS12322 Free SAS	`15.06ms` from Paris, FR
98.84.76.56	AS14618 Amazon.com, Inc.	`0.15ms` from Reston, US
132.247.163.72	AS278 Universidad Nacional Autonoma de Mexico	`4.34ms` from Santiago de Queretaro, MX
62.127.200.40	AS8434 Telenor Sverige AB	`8.39ms` from Stockholm, SE
171.120.13.120	AS4837 CHINA UNICOM China169 Backbone	`3.02ms` from Taiyuan, CN
194.48.62.200	AS12991 Amt der Ooe. Landesregierung	`3.94ms` from Vienna, AT
68.50.133.168	AS7922 Comcast Cable Communications, LLC	`12.70ms` from Chicago, US
89.58.71.216	AS44656 2provide GmbH	`1.17ms` from Frankfurt am Main, DE
61.36.125.232	AS3786 LG DACOM Corporation	`1.29ms` from Incheon, KR
122.2.118.72	AS9299 Philippine Long Distance Telephone Company	`0.96ms` from Manila, PH
117.45.149.168	AS4134 CHINANET-BACKBONE	`3.50ms` from Nanchang, CN
88.124.118.24	AS12322 Free SAS	`8.67ms` from Paris, FR
86.254.97.152	AS3215 Orange S.A.	`7.76ms` from Paris, FR
176.133.21.24	AS5410 Bouygues Telecom SA	`2.86ms` from Paris, FR
106.10.44.184	AS135354 NAVER BUSINESS PLATFORM ASIA PACIFIC PTE. LTD.	`1.08ms` from Seoul, KR
16.182.33.248	AS16509 Amazon.com, Inc.	`0.32ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 -f3 204.228.68.11

traceroute to 204.228.68.11 (204.228.68.11): 64 hops max, 52 byte packets

3 [] 206.53.175.22 9.943 ms

4 [AS14041] 129.19.64.121 0.974 ms

5 [AS62671] 204.228.68.11 0.611 ms

Measurement taken from

IPinfo ProbeNet in Denver, US

On February 7th 2026

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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