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Summary IP address summary information Name
Cook Children's Health Care System Country
Website
Hosted domains
12 IPv4 addresses
768 IPv6 addresses
0 ASN type
Business Registry
ARIN Allocated
12 years ago on Feb 19, 2014 Updated
12 years ago on Feb 19, 2014
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Join for free to view WHOIS detailsPowered by ASN to WHOIS data Important routers in AS16778
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 AS16778 at robtex .
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Pingable IPs 3 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
Other Pingable IPs IP Address ASN Details 32.105.135.26 Ping AS2686 AT&T Enterprises, LLC #897 2.41ms from Amsterdam, NL 172.232.4.250 Ping AS63949 Akamai Connected Cloud #1,195 0.29ms from Chicago, US 92.19.108.74 Ping AS13285 TalkTalk Communications Limited #107 3.93ms from London, GB 31.197.9.186 Ping AS3269 Telecom Italia S.p.A. #36 6.32ms from Milan, IT 114.149.114.106 Ping AS4713 NTT DOCOMO BUSINESS,Inc. #12 7.30ms from Osaka, JP 213.200.127.58 Ping AS3257 GTT Communications Inc. #21 0.27ms from Paris, FR 173.220.119.26 Ping AS6128 Cablevision Systems Corp. #99 4.92ms from Piscataway, US 3.80.86.234 Ping AS14618 Amazon.com, Inc. #62 0.57ms from Reston, US 186.79.223.170 Ping AS7418 TELEFÓNICA CHILE S.A. #100 8.18ms from Santiago, CL 78.13.242.10 Ping AS16509 Amazon.com, Inc. #24 0.48ms from Santiago de Queretaro, MX
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Traceroute Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f4 75.11.232.1
traceroute to 75.11.232.1 (75.11.232.1 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Manchester, GB
On September 17, 2026
There are 2 peers for this ASN.
There are 1 upstreams for this ASN.
ASN Name Rank AS13335 Cloudflare, Inc. #102
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS16778 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 100%
Held location over 1 year 95%
Median days between moves 129 days
Geolocation scope City How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 12 domain names hosted across 6 IP addresses on this ASN.
Join for free to view to list hosted domains
Activity A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Times shown in United States local time (UTC-6). Less More
Peak hour 12:00–13:00
Active hours 18 hrs
Weekend vs weekday weekdays heavier
Busiest day Tue
Network type Business
Geography United States