AS number details

AS21666

OSF Healthcare System  ·  osfhealthcare.org

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AS21666 – OSF Healthcare System

Field Value
Country United States
Website osfhealthcare.org
Hosted domains 1
Number of IPv4 512
Number of IPv6 0
ASN type Business
Registry arin
Allocated 3 years ago on Aug 30, 2022
Updated 3 years ago on Aug 30, 2022
Netblock Company Num of IPs
198.246.176.0/24 OSF Healthcare System 256
204.238.189.0/24 OSF Healthcare System 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details


                                                ASHandle:       AS21666
                                                OrgID:          AS21666
                                                ASName:         AS21666
                                                ASNumber:       AS21666
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

IP Address Domain Domains on this IP
204.238.189.184 ██████████ 1

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Useful for Cybersecurity

Peers

There are 2 peers for this ASN.

Peers Name
AS174 Cogent Communications
AS6461 Zayo Bandwidth
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications
AS6461 Zayo Bandwidth
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
204.238.189.211 AS21666 OSF Healthcare System 0.51ms from Chicago, US
198.246.176.17 AS21666 OSF Healthcare System 0.47ms from Chicago, US

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Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
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174.92.104.146 AS577 Bell Canada 3.36ms from Toronto, CA
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113.141.178.114 AS134768 CHINANET SHAANXI province Cloud Base network 3.15ms from Xi'an, CN
81.205.87.18 AS1136 KPN B.V. 2.75ms from Amsterdam, NL
217.115.192.2 AS15879 KPN Internedservices 1.16ms from Amsterdam, NL
93.183.68.82 AS43581 ZTV CORP LLC 0.70ms from Amsterdam, NL
20.152.62.2 AS8075 Microsoft Corporation 3.72ms from Amsterdam, NL
47.38.125.146 AS20115 Charter Communications LLC 10.93ms from Atlanta, US
161.18.40.2 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 12.77ms from Bogota, CO
20.102.166.178 AS8075 Microsoft Corporation 0.39ms from Boydton, US
41.46.160.194 AS8452 TE-AS 4.09ms from Cairo, EG

Traceroute

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

$
traceroute -a -n -q1 -f3 204.238.189.166
traceroute to 204.238.189.166 (204.238.189.166): 64 hops max, 52 byte packets
4 [AS6461] 64.125.199.38 1.563 ms
5 *
6 [AS6461] 64.125.21.251 1.565 ms
8 *
9 *
Measurement taken from IPinfo ProbeNet in Chicago, US
On

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 AS21666 at robtex.

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