Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS13611

Announcement observedARIN

CDC - U.S. Center For Disease Control and Prevention · CDC

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active11/2/2026, 20:34:43Snapshot expired

View network topology RDAP registration

ASN: AS13611
Registration country: United States
Name: CDC - U.S. Center For Disease Control and Prevention
Abbreviation: CDC
Registration date: 7/14/1999, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
158.111.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	11/2/2026, 08:00:00	✓	×	Currently valid
198.246.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	11/2/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: CDC - U.S. Center For Disease Control and Prevention
RIR: ARIN
Registration country: United States
Registration date: 7/14/1999, 04:00:00
Abuse contact: hostmaster@cdc.gov

Snapshot trend

11/2/2026, 20:34:432 v40 v61 Upstream · 0 Uncertain

11/2/2026, 20:33:352 v40 v61 Upstream · 0 Uncertain

9/30/2026, 09:43:582 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap · cha-la-bgp-observations