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Summary IP address summary information Name
U.S. Center For Disease Control and Prevention Country
Website
Hosted domains
11 IPv4 addresses
73,728 IPv6 addresses
0 ASN type
Government Registry
ARIN Allocated
27 years ago on Jul 14, 1999 Updated
14 years ago on Mar 7, 2012
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS13611
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 AS13611 at robtex .
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Data Data
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Stub AS
Stub AS
Pingable IPs 1 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
Other Pingable IPs IP Address ASN Details 109.201.134.27 Ping AS43350 NForce Entertainment B.V. #2,590 0.58ms from Amsterdam, NL 23.219.215.219 Ping AS20940 Akamai International B.V. #501 0.21ms from Ashburn, US 20.246.224.91 Ping AS8075 Microsoft Corporation #242 0.49ms from Ashburn, US 54.149.113.155 Ping AS16509 Amazon.com, Inc. #18 0.17ms from Boardman, US 197.47.124.123 Ping AS8452 TE-AS #19 4.74ms from Cairo, EG 3.66.142.235 Ping AS16509 Amazon.com, Inc. #18 0.18ms from Frankfurt am Main, DE 64.228.76.123 Ping AS577 Bell Canada #22 4.07ms from Montreal, CA 34.237.180.155 Ping AS14618 Amazon.com, Inc. #71 0.21ms from Reston, US 115.58.166.187 Ping AS4837 CHINA UNICOM China169 Backbone #13 4.93ms from Zhengzhou, CN 67.208.190.11 Ping AS46887 Zayo Bandwidth #197 0.43ms from Boston, US
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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 -f9 -m18 158.111.243.106
traceroute to 158.111.243.106 (158.111.243.106 ): 18 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Casablanca, MA
On October 30, 2026
Netblock Company Num of IPs U.S. Center For Disease Control and Prevention
65,536 U.S. Center For Disease Control and Prevention
8,192
Powered by IP Ranges data
There are 1 peers for this ASN.
ASN Name Rank AS19050 U.S. Department of Health & Human Services #2,660
There are 1 upstreams for this ASN.
ASN Name Rank AS19050 U.S. Department of Health & Human Services #2,660
There are 0 downstreams for this ASN.
No downstreams found.
Share of IPv4 footprint per hexagon Less More
Held location over 90 days 91%
Held location over 1 year 90%
Median days between moves 36 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 11 domain names hosted across 9 IP addresses on this ASN.
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-5). Less More
Peak hour 08:00–09:00
Active hours 10 hrs (business hours)
Weekend vs weekday weekdays heavier
Busiest day Tue
Network type Government
Geography United States 
