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AS13611 U.S. Center For Disease Control and Prevention

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

U.S. Center For Disease Control and Prevention cdc.gov

US 2 Routes

AS Data

AS13611

AS13611 – U.S. Center For Disease Control and Prevention

AS Number	13611
AS Name	CDC
Organization	U.S. Center For Disease Control and Prevention(ucdcp)
Country	US
Website	cdc.gov
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	1999-07-14

ASN Intelligence API for production workflows

Use ASN data for AS13611 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
158.111.0.0/16	AS13611	U.S. Center For Disease Control and Prevention	U.S. Center For Disease Control and Prevention	65536
198.246.96.0/19	AS13611	U.S. Center For Disease Control and Prevention	U.S. Center For Disease Control and Prevention	8192

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       13611
ASName:         CDC
ASHandle:       AS13611
RegDate:        1999-07-14
Updated:        2012-03-07    
Ref:            https://rdap.arin.net/registry/autnum/13611


OrgName:        U.S. Center For Disease Control and Prevention
OrgId:          UCDCP
Address:        1600 Clifton Road
City:           Atlanta
StateProv:      GA
PostalCode:     30333
Country:        US
RegDate:        1997-10-03
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/UCDCP


OrgTechHandle: CH101-ORG-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-404-638-5580 
OrgTechEmail:  hostmaster@cdc.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/CH101-ORG-ARIN

OrgAbuseHandle: CH101-ORG-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-404-638-5580 
OrgAbuseEmail:  hostmaster@cdc.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CH101-ORG-ARIN

RTechHandle: CH101-ORG-ARIN
RTechName:   Hostmaster
RTechPhone:  +1-404-638-5580 
RTechEmail:  hostmaster@cdc.gov
RTechRef:    https://rdap.arin.net/registry/entity/CH101-ORG-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS19050	U.S. Department of Health & Human Services	US

Upstreams

AS Number	Description	Country
AS19050	U.S. Department of Health & Human Services	US

Frequently Asked Questions

What is ASN AS13611?

ASN AS13611 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS13611?

AS13611 is listed under U.S. Center For Disease Control and Prevention.

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.