66.128.220.0/24

AS32022 · Children's Hospital Colorado

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Summary

Country	United States
Domain	childrenscolorado.org
ASN	AS32022
Parent Range	66.128.208.0/20
Registry	ARIN
ID	CHC-66-128-208-NET

WHOIS Details

NetHandle:      NET-66-128-208-0-1
OrgID:          CHD
Parent:         NET-66-0-0-0-0
NetName:        CHC-66-128-208-NET
NetRange:       66.128.208.0 - 66.128.223.255
NetType:        allocation
RegDate:        2004-02-27
Updated:        2021-12-14
TechHandle:     NETWO4188-ARIN
Source:         ARIN


OrgID:          CHD
OrgName:        Children's Hospital Colorado
CanAllocate:    
Street:         Corporate Compliance Box 450
Street:         13123 East 16th Ave
City:           Aurora
State/Prov:     CO
Country:        US
PostalCode:     80046
RegDate:        1993-01-12
Updated:        2013-02-07
OrgAdminHandle: NETWO4188-ARIN
OrgTechHandle:  NETWO4188-ARIN
OrgAbuseHandle: NETWO4188-ARIN
OrgNOCHandle:   NETWO4188-ARIN
Source:         ARIN


POCHandle:      NETWO4188-ARIN
IsRole:         Y
LastName:       Network Manager
FirstName:      
Street:         Children's Hospital Colorado
Street:         Anschutz Medical Campus
Street:         13123 East 16th Avenue
City:           Aurora
State/Prov:     CO
Country:        US
PostalCode:     80045
RegDate:        2011-02-11
Updated:        2025-03-28
OfficePhone:    +1-720-777-1234
Mailbox:        TCH-DNS-ADMIN@childrenscolorado.org
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 66.128.220.0/24

Range	ASN	Company	Num of IPs
66.128.208.0/20	AS32022	Children's Hospital Colorado	4,096

Nearby Ranges

BGP prefixes that overlap with 66.128.0.0/16

Range	ASN	Company	Num of IPs
66.128.96.0/19	AS20115	Charter Communications LLC	8,192
66.128.160.0/19	AS13576	SDN Communications	8,192
66.128.48.0/20	AS7819	Global IP Networks INC	4,096
66.128.80.0/20	AS22995	Xplore Inc.	4,096
66.128.32.0/20	AS263236	Itelsa	4,096
66.128.0.0/20	AS30666	Xchange Telecom Corp.	4,096
66.128.208.0/20	AS32022	Children's Hospital Colorado	4,096
66.128.224.0/20	AS3561	CenturyLink Communications, LLC	4,096
66.128.64.0/20	AS3561	CenturyLink Communications, LLC	4,096
66.128.240.0/20	AS40237	United Telephone Company	4,096
66.128.128.0/20	AS54665	Trailwave Fiber, Inc.	4,096
66.128.164.0/23	AS15204	ITC Telecom	512
66.128.184.0/23	AS15204	ITC Telecom	512
66.128.166.0/23	AS13576	Midstate communications	512
66.128.162.0/23	AS15204	ITC Telecom	512
66.128.171.0/24	AS13576	Valley Telecommunications	256
66.128.181.0/24	AS46566	CAPITAL SERVICES	256
66.128.189.0/24	AS395037	MNL-8	256
66.128.178.0/24	AS398112	Poet	256
66.128.177.0/24	AS398176	JDS Industries	256
66.128.182.0/24	AS15204	ITC Telecom	256
66.128.173.0/24	AS13576	Valley Telephone Company	256
66.128.174.0/24	AS13576	B-Y Internet, LLC	256
66.128.175.0/24	AS13576	Midstate communications	256
66.128.176.0/24	AS13576	COMMUNITY INTERNET SERVICE	256
66.128.179.0/24	AS13576	SDN-BCKB	256
66.128.183.0/24	AS15204	ITC Telecom	256
66.128.188.0/24	AS14675	PLAINS COMMERCE BANK	256
66.128.161.0/24	AS18785	Santel Communications Cooperative, Inc.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
66.128.220.1	AS32022 Children's Hospital Colorado	`0.38ms` 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
89.218.8.88	AS9198 JSC Kazakhtelecom	`0.11ms` from Almaty, KZ
52.40.213.8	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
73.219.203.88	AS7922 Comcast Cable Communications, LLC	`11.18ms` from Boston, US
73.26.197.72	AS7922 Comcast Cable Communications, LLC	`11.84ms` from Denver, US
182.208.103.40	AS17858 LG POWERCOMM	`2.30ms` from Incheon, KR
104.143.152.184	AS36352 HostPapa	`0.36ms` from Los Angeles, US
37.45.176.40	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`1.94ms` from Minsk, BY
132.246.104.216	AS25689 Shared Services Canada	`3.82ms` from Montreal, CA
174.161.16.232	AS7922 Comcast Cable Communications, LLC	`13.44ms` from Murfreesboro, US
219.104.98.72	AS2527 Sony Network Communications Inc.	`12.22ms` from Osaka, JP
185.18.25.200	AS206617 Neomedia S.r.l.	`0.60ms` from Palermo, IT
31.148.31.248	AS201469 Concept Ltd.	`1.01ms` from Saint Petersburg, RU
116.39.71.72	AS17858 LG POWERCOMM	`1.47ms` from Seoul, KR
220.79.220.24	AS38431 KB Insurance	`1.66ms` from Seoul, KR
14.36.159.184	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
59.127.9.88	AS3462 Data Communication Business Group	`6.71ms` from Taichung, TW
84.87.13.104	AS1136 KPN B.V.	`1.10ms` from Amsterdam, NL
172.235.191.200	AS63949 Akamai Connected Cloud	`0.52ms` from Amsterdam, NL
52.20.215.216	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
156.62.165.40	AS24398 Auckland University of Technology	`1.96ms` from Auckland, NZ
101.72.249.56	AS4837 CHINA UNICOM China169 Backbone	`8.29ms` from Beijing, CN
79.101.242.56	AS8400 TELEKOM SRBIJA a.d.	`4.31ms` from Belgrade, RS
34.67.58.104	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
79.240.126.248	AS3320 Deutsche Telekom AG	`10.21ms` from Frankfurt am Main, DE
206.206.94.232	AS20001 Charter Communications Inc	`3.46ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 66.128.220.248

traceroute to 66.128.220.248 (66.128.220.248): 64 hops max, 52 byte packets

1 [AS63023] 69.50.92.1 0.17 ms

2 [AS6461] 216.200.184.105 0.211 ms

3 *

4 *

5 [AS6461] 64.125.23.107 3.07 ms

6 [AS6461] 72.10.83.2 0.459 ms

7 [AS32022] 66.128.220.248 0.919 ms

Measurement taken from

IPinfo ProbeNet in Denver, US

On March 13th 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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